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Keysight Technologies N9914C User Manual

Fieldfox analyzers

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Keysight

C-Series FieldFox Analyzers

- User's Guide (Unabridged)

This manual provides documentation for the

following models:

N9912C, N9913C, N9914C, N9915C,

N9933C, N9934C, N9935C

This is the unabridged version of the abridged FieldFox User's Guide. The abridged User's Guide can be found here:

http://rfmw.em.keysight.com/wireless/helpfiles/C_Series_FieldFox_WebHelp/home.htm

User's Guide (Unabridged)

Table of Contents

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Summary of Contents for Keysight Technologies N9914C

Page 1 C-Series FieldFox Analyzers - User's Guide (Unabridged) This manual provides documentation for the following models: N9912C, N9913C, N9914C, N9915C, N9933C, N9934C, N9935C This is the unabridged version of the abridged FieldFox User's Guide. The abridged User’s Guide can be found here: http://rfmw.em.keysight.com/wireless/helpfiles/C_Series_FieldFox_WebHelp/home.htm...
Page 2: Safety Notices
THESE TERMS, THE WARRANTY Keysight shall be under no obligation TERMS IN THE SEPARATE to update, revise or otherwise modify © Keysight Technologies, Inc. the Software. With respect to any AGREEMENT WILL CONTROL. 2014-2024 technical data as defined by FAR Technology Licenses 2.101, pursuant to FAR 12.211 and...
Page 3: Where To Find The Latest Information
Where to Find the Latest Information Documentation is updated periodically. For the latest information about these products, including instrument software upgrades, application information, and product information, browse to one of the following URLs, according to the name of your product: http://www.keysight.com/find/fieldfox To receive the latest updates by email, subscribe to Keysight Email Updates at the following URL: http://www.keysight.com/find/MyKeysight...
Page 4 A.13.10 Firmware – Release C Series FieldFox For customers upgrading FieldFox firmware, the following is a list of changes from the previous release: — Initial N99xxC Series FieldFox firmware release – — Learn more, refer to the FieldFox Configuration Guide https://www.keysight.com/us/en/assets/7018-06515/configuration-guides/5992-3701.pdf —...
Page 5: Contacting Keysight
Contacting Keysight Assistance with test and measurements needs and information on finding a local Keysight office are available https://www.keysight.com/find/assist/ on the Web at If you do not have access to the Internet, please contact your Keysight field engineer. In any correspondence or telephone conversation, refer to the Keysight product by its model number and full serial number.
Page 7 1. Overview Models and Options ............27 Accessories .
Page 8 Sweep Time .............58 Output Power.
Page 9 About S-parameters............93 Mixed-Mode S-Parameters .
Page 10: Time Domain - Option
Gate Enable ............123 Gating .
Page 11 External Gain ............164 Attenuation Control .
Page 12 Traces..............231 Channel Power (CHP) .
Page 13 Spectrogram Display ............294 Spectrogram Display (RTSA Option) .
Page 14 External Gain ............346 Attenuation Control .
Page 15 How to Play a Data Log ..........427 Other Features Available .
Page 16 Angle of Arrival (AoA) – (Interference Finder (i.e., Manual AoA) Requires Option 366) ..508 How to Access Direction Finding Mode Settings (AoA) ......509 AoA Features .
Page 17 How to select Built-in Power Meter Mode........553 Frequency/ Span / Step .
Page 18 How to Connect the USB Power Sensor........584 How to Connect the LAN Power Sensor .
Page 19 Frequency Selection ........... . . 632 Display Resolution .
Page 20 Using the Antenna/Cable Editor ......... . .699 Using Mapping .
Page 21 What Is a ‘Peak’ ............774 Marker Functions .
Page 22 Preferences ............. . .814 Quick Settings Table .
Page 23 32. Using the Mini-USB Port to send SCPI Commands and Queries Mini-USB Connection to PC with IO Libraries ........849 33.
Page 24 Environmental Requirements ..........890 Electrical Requirements.
Page 25 Keysight N9938-90006 User’s Guide...
Page 26 Keysight N9938-90006 User’s Guide...
Page 27: Models And Options
Vector Network Analyzer AND Spectrum RF Analyzer Vector Network Analyzer AND Spectrum RF Analyzer Vector Network Analyzer AND Spectrum Microwave Analyzer N9913C Vector Network Analyzer AND Spectrum RF Analyzer N9914C Vector Network Analyzer AND Spectrum RF Analyzer N9915C Vector Network Analyzer AND Spectrum Microwave Analyzer N9933C...
Page 28: Optional Accessories
Overview Accessories Accessories The following accessories are included with every FieldFox. Spare accessories can be ordered at any time. Refer to Table 1-2. Some of the optional Table 1-3. For more, accessories—not included unless requested—are listed in refer to http://www.keysight.com/find/fieldfox. Table 1-2 Accessories Accessory Part...
Page 29: Fieldfox Manuals, Software, And Supplemental Help
Overview FieldFox Manuals, Software, and Supplemental Help FieldFox Manuals, Software, and Supplemental Help The following manuals and software are available for the FieldFox. To access all of these, visit: www.keysight.com/find/fieldfoxsupport — User’s Guide (Abridged) — This abridged manual, can be included as an option with shipment. —...
Page 30 Overview FieldFox Manuals, Software, and Supplemental Help Safety Notes The following safety notes are used throughout this manual. Familiarize yourself with each of the notes and its meaning before operating this instrument. More pertinent safety notes for using this product are located in Chapter 35, “Safety Considerations”, on page 877.
Page 31: Preparing For Initial Use Of Your New Fieldfox
Keysight Handheld Analyzers N99xxC User’s Guide 2 Preparing for Initial Use of Your New FieldFox Check the Shipment When you receive your FieldFox, check the shipment according to the following procedure: 1. Inspect the shipping container for damage. Signs of damage may include a dented or torn shipping container or cushioning material that indicates signs of unusual stress or compacting.
Page 32: Install The Lithium-Ion Battery
Preparing for Initial Use of Your New FieldFox Install the Lithium-Ion Battery Install the Lithium-Ion Battery Step Notes 1. Open the battery door Push the button on the battery compartment door while sliding the door outward. 2. Insert the battery. The terminals end of the battery is inserted into the compartment.
Page 33: Fieldfox On/Off Settings
Preparing for Initial Use of Your New FieldFox FieldFox ON/OFF Settings — On the battery. Open the FieldFox battery compartment door to view the battery LCD. To conserve battery power: — Use Run/Hold to single-trigger a measurement when needed. Hold shown on the display.
Page 34: Power Button Led Status
Preparing for Initial Use of Your New FieldFox FieldFox High Temperature Protection — To turn Power OFF (very low battery drain), press the power button briefly and press the Shutdown softkey. Data and instrument state are NOT automatically saved when the FieldFox is powered OFF. Learn how to save data and instrument state in Chapter 33, “File Management”, on page 851.
Page 35: Temperature Control Mode
Preparing for Initial Use of Your New FieldFox FieldFox High Temperature Protection — The average temperature that is displayed for the Internal Temperature is the average of the RF1, RF2, SB1, SB2 temperatures. These temperatures come from internal sensors embedded within the FieldFox. The average temperature does not include the CPU or the battery temperatures.
Page 36 Preparing for Initial Use of Your New FieldFox FieldFox High Temperature Protection Entering Auto Protect (Maximum) Threshold Temperature Mode At above approximately 75°C, the FieldFox enters (Maximum) Auto Protect temperature control mode by displaying the “Entering Auto Protect mode...”. See also Table 2-1 on page When you enter the Auto Protect (Maximum) Threshold, the following message is displayed:...
Page 37 Preparing for Initial Use of Your New FieldFox FieldFox High Temperature Protection High-Temp Shutdown Warning (RTSA Mode Only) In extreme situations, Temperature Control mode may not stop an increase in the FieldFox internal temperature. Just prior to shut down, the FieldFox will display a warning of imminent shut down and the instrument turns off.
Page 38 Preparing for Initial Use of Your New FieldFox FieldFox High Temperature Protection Summary of FieldFox Average Internal Temperature Protection Behavior Table 2-1 Summary of FieldFox Temperature Protection Threshold Average Internal Description of Behavior Temperature Duty cycling ~64°C Duty cycling is enabled when the internal average temperature of the FieldFox reaches the duty cycling threshold of ~64°C.
Page 39: Avoid Overpowering The Fieldfox
Preparing for Initial Use of Your New FieldFox Avoid Overpowering the FieldFox Avoid Overpowering the FieldFox The FieldFox can be damaged with too much power or voltage applied. Exceeding the maximum RF power levels shown below will cause an ADC Over Range message to appear on the screen.
Page 40: Take The Fieldfox Tour
Preparing for Initial Use of Your New FieldFox Take the FieldFox Tour Take the FieldFox Tour Front Panel Keysight N9915-90020 User’s Guide...
Page 41 Preparing for Initial Use of Your New FieldFox Take the FieldFox Tour Caption Description Learn More: “FieldFox Power ON: press momentarily. ON/OFF STAND BY: with FieldFox power ON, press briefly. Settings” OFF: press and hold until the FieldFox shuts off (about 4 seconds). page 33 Not lit: FieldFox OFF, not charging “Power...
Page 42 Preparing for Initial Use of Your New FieldFox Take the FieldFox Tour Caption Description Learn More: Limit “All about Sets limit lines for quick Pass/Fail judgment Limit Lines” on page 778 Run/Hold Toggles between free Run and Hold/Single operation. “Run/Hol d”...
Page 43: Top Panel
Preparing for Initial Use of Your New FieldFox Take the FieldFox Tour Top Panel Caption Descriptions Learn More: “CAT Mode Settings” Port 1 For CAT and NA measurements, use to make reflection measurements. RF Output Maximum: ±40 VDC, +25 dBm RF on page 53 “NA Mode Settings”...
Page 44: Right Side Panel
Preparing for Initial Use of Your New FieldFox Take the FieldFox Tour Right Side Panel Connector Description Learn More: “LAN Settings” on Ethernet cable connector to read trace data using the FieldFox Data Link page 838 Software and connect to the FieldFox remotely. Download the latest version of the software at: www.keysight.com/find/fieldfoxsupport “IF Output”...
Page 45: Left Side Panel
Preparing for Initial Use of Your New FieldFox Take the FieldFox Tour Left Side Panel Connector Description Learn More: Audio output jack for use with SA Mode Tune and Listen. “Tune & Listen (AM/FM)” on page 174 DC Voltage Source for use with external DC Bias. “Variable Voltage Source (Opt.
Page 46: Screen Tour
Preparing for Initial Use of Your New FieldFox Take the FieldFox Tour Screen Tour Caption Description Learn More: “Title” on page 805 Title – write your own text here Current Mode “Run/Hold” on Run / Hold page 801 Display Format Mode dependent Scale/division Mode dependent...
Page 47 Preparing for Initial Use of Your New FieldFox Take the FieldFox Tour Caption Description Learn More: Bandpass / Lowpass setting (Fault Meas) “DTF Measurement Settings” on page 68 IF BW in NA Mode Output Power Level (CAT and NA) “Output Power” on page 59 Measurement Stop Freq or Distance Mode dependent...
Page 48: How To Enter Numeric Values
Preparing for Initial Use of Your New FieldFox How to Enter Numeric Values How to Enter Numeric Values Many settings on the FieldFox require the entry of numeric values. How to enter numeric values Use any combination of the following keys: —...
Page 49: Connector Care
Preparing for Initial Use of Your New FieldFox Connector Care Connector Care — Never store connectors, airlines, or calibration standards loose in a box. This is a common cause of connector damage. — Install protective end caps when connectors are not in use. —...
Page 50 Preparing for Initial Use of Your New FieldFox Connector Care Keysight N9915-90020 User’s Guide...
Page 51: Table Of Contents
Keysight Handheld Analyzers N99xxC User’s Guide CAT (Cable and Antenna Test) Mode CAT Mode is typically used to test an entire transmission system, from the transmitter to the antenna. This process is sometimes referred to as Line Sweeping. CAT Mode is similar to NA (Network Analyzer) Mode.
Page 52 CAT (Cable and Antenna Test) Mode Procedures “Return Loss Measurements” on page 61 “1-Port Cable Loss Measurements” on page 62 “2-Port Insertion Loss Measurements” on page 63 See Also Chapter 8, “Calibration for NA, CAT, and VVM Modes”, on page 127 “All about Markers”...
Page 53: Cat Mode Settings
CAT (Cable and Antenna Test) Mode CAT Mode Settings CAT Mode Settings Select CAT Mode before making any setting in this chapter. How to select CAT Mode 1. Press Mode. 2. Then CAT/TDR. Measurement Selection How to select a CAT Mode Measurement Learn more in the Supplemental Online Help at: https://rfmw.em.keysight.com/wireless/helpfiles/FieldFoxOnlineSupplement alHelp/Home.htm.
Page 54: Quick Settings Table
CAT (Cable and Antenna Test) Mode CAT Mode Settings DTF (VSWR) — Distance to Fault in VSWR format. — Cable Loss (1-Port) 1-port reflection measurement that displays the loss of “1-Port Cable Loss Measurements” on a transmission line. Learn more, see page Insertion Loss (2-Port) —...
Page 55: Frequency Range
CAT (Cable and Antenna Test) Mode CAT Mode Settings Dock Window — Press to relocate the Settings table to a position relative to the trace window. The Dock Window setting persists through a Preset. Choose from the following: — Full (Default setting) Only the Settings table is shown on the screen. The trace window is temporarily not shown —...
Page 56: Averaging
CAT (Cable and Antenna Test) Mode CAT Mode Settings Autoscale Automatically adjusts the Y-axis to comfortably fit the Minimum and Maximum amplitude of the trace on the screen. 2. Set Scale, acquisition, and Reference Position: — Scale Manually enter a scale per division to view specific areas of the trace —...
Page 57: Smoothing
CAT (Cable and Antenna Test) Mode CAT Mode Settings This setting can be changed at any time without affecting calibration accuracy. Averaging is often used to increase the dynamic range of a measurement. To achieve the highest dynamic range, select NA mode and reduce the IF Bandwidth setting.
Page 58: Resolution (Number Of Data Points)
CAT (Cable and Antenna Test) Mode CAT Mode Settings — Then choose one of the following: Single — Automatically sets Continuous OFF and causes FieldFox to make ONE sweep, then hold for the next Single key press. Hold is annotated in the upper left corner of the display when NOT sweeping, and changes to an arrow -->...
Page 59: Output Power
CAT (Cable and Antenna Test) Mode CAT Mode Settings How to set Sweep Time — Press Sweep 3 > Min Swp Time. — Enter a value using the numeric keypad. “Multiplier Abbreviations” on page — Press a multiplier key. Learn more in Output Power Set the power level out of the FieldFox to High, Low, or manually set power level to a value between High and Low.
Page 60: Interference Rejection
CAT (Cable and Antenna Test) Mode CAT Mode Settings Interference Rejection Use this setting when you suspect that other signals in the area are interfering with a measurement. Interference may look like a spike or lack of stability in the measurement trace.
Page 61: Return Loss Measurements
CAT (Cable and Antenna Test) Mode Return Loss Measurements — The Return Loss measurement frequency settings are made in the usual manner. Learn how at “Frequency Range” on page 55. When a new Start or Stop frequency is selected, Coupled Frequency is automatically set to OFF. —...
Page 62: 1-Port Cable Loss Measurements
CAT (Cable and Antenna Test) Mode 1-Port Cable Loss Measurements 1-Port Cable Loss Measurements While all cables have inherent loss, weather and time will deteriorate cables and cause even more energy to be absorbed by the cable. This makes less power available to be transmitted.
Page 63: 2-Port Insertion Loss Measurements
CAT (Cable and Antenna Test) Mode 2-Port Insertion Loss Measurements 10. Connect a LOAD at the end of the cable to be tested. This limits the reflections to faults that are located in the cable under test. 11. Press Trace 6 then Math and Memory then Data->Mem...
Page 64 CAT (Cable and Antenna Test) Mode 2-Port Insertion Loss Measurements — Press Sweep 3, then select a Resolution setting. — Press Cal 5, then perform a calibration. Learn more on “How to Perform a Calibration” on page 130. — Connect the DUT and view the insertion loss measurement results. When measuring very long lengths of cable, it may be necessary to increase the sweep time.
Page 65: Dtf (Distance To Fault) Measurements
Keysight Handheld Analyzers N99xxC User’s Guide DTF (Distance to Fault) Measurements CAT Mode Distance to Fault (DTF) measurements are generally used to locate problems, or faults, in a length of cable or transmission line. In this chapter, the cable to be tested is referred to as the DUT (Device Under Test). Settings that are NOT unique to DTF measurements are documented in the CAT Mode Chapter 3, “CAT (Cable and Antenna Test) Mode.”...
Page 66 DTF (Distance to Fault) Measurements “Coupled Frequency” on page 70 “Cable (Correction) Specifications” on page 70 “Window Settings” on page 74 “DTF Units” on page 74 “Calculated DTF values” on page 74 “About Alias Faults” on page 75 Optional settings “All about Markers”...
Page 67: How To Make Dtf Measurements
DTF (Distance to Fault) Measurements How to make DTF Measurements How to make DTF Measurements Before starting, you may need the following: — Jumper cable or adapter to connect the beginning of the DUT to the FieldFox. — LOAD with correct connector type and gender to terminate the end of the DUT (if possible).
Page 68: Dtf Measurement Settings
DTF (Distance to Fault) Measurements DTF Measurement Settings DTF Measurement Settings DTF Settings Table You can set and view all of the DTF settings, including some calculated values, on the DTF Settings table. Learn about the calculated values in “Calculated DTF values”...
Page 69: Dtf Start And Stop Distance
DTF (Distance to Fault) Measurements DTF Measurement Settings — More then DTF (Lin) Faults are displayed on the Y-axis in linear (unitless) format. DTF Start and Stop Distance In DTF measurements, you set the physical length of cable or other device to be tested.
Page 70: Coupled Frequency
DTF (Distance to Fault) Measurements DTF Measurement Settings Typically, you will set the frequency range of the measurement to the passband of the filter. However, you may also want to test the ability of the filter to reject unwanted frequencies. In this case, set the frequency range to include those frequencies which the filter may not be adequately rejecting.
Page 71 DTF (Distance to Fault) Measurements DTF Measurement Settings About Velocity Factor and Cable Loss — Velocity Factor is a property of the physical material of a cable. A VF of 1.0 corresponds to the speed of light in a vacuum, or the fastest VF possible. A polyethylene dielectric cable has VF = 0.66 and a cable with PTFE dielectric has VF = 0.7.
Page 72 DTF (Distance to Fault) Measurements DTF Measurement Settings 3. Then: — Velocity Factor Using the numeric keypad, enter a value between 0.01 and 1. Then press Enter. — Cable Loss Using the numeric keypad, enter a positive Cable Loss value in dB/m, then press Enter. How to Edit a Cable File The FieldFox includes many predefined cable files with the manufacturer’s specifications.
Page 73 DTF (Distance to Fault) Measurements DTF Measurement Settings Recall Cable — Press to load a Cable file from the specified Storage Device — Storage Device Changes the device used to save or recall Cable files. This is a different setting from the Save/Recall Storage Device setting. Choose from Internal (default setting), USB (must be connected) or SD card.
Page 74: Window Settings
DTF (Distance to Fault) Measurements DTF Measurement Settings Window Settings Window settings provide the ability to choose between optimizing DTF measurements for resolving closely-spaced faults or for the ability to measure low-level faults. How to select Window settings 1. Press Meas Setup 4 > Settings 2.
Page 75: About Alias Faults
DTF (Distance to Fault) Measurements DTF Measurement Settings Range Resolution. Indicates the accuracy of the distance to fault measurement. For example, with range resolution of 500 mm, if the distance to fault is 10 meters, this value could be inaccurate by +/- 500 mm or between 9.5 to 10.5 meters.
Page 76 DTF (Distance to Fault) Measurements DTF Measurement Settings Re-reflections are measured at the FieldFox as mirror images of the original faults. The largest fault is the open end of the cable. To avoid confusion, set the Stop distance shortly after that fault. Keysight N9915-90015 User’s Guide...
Page 77 Keysight Handheld Analyzers N99xxC User’s Guide TDR (Time Domain Reflectometry) - Option 215 CAT Mode Time Domain Reflectometry (TDR) measurements are generally used to locate problems, and identify the type of problem, in a length of cable or transmission line. Settings that are NOT unique to TDR measurements are documented in Chapter 3, “CAT (Cable and Antenna Test) Mode”, on page In this chapter, the cable to be tested is referred to as the DUT (Device Under...
Page 78 TDR (Time Domain Reflectometry) - Option 215 “Frequency Mode” on page 82 “Cable (Correction) Specifications” on page 83 “Window Settings” on page 86 “TDR Units” on page 87 “Calculated TDR values” on page 87 “About Alias Faults” on page 88 “How to Prevent Undersampling”...
Page 79: Tdr (Time Domain Reflectometry) - Option 215
TDR (Time Domain Reflectometry) - Option 215 How to make TDR Measurements How to make TDR Measurements Before starting, you may need the following: — Jumper cable or adapter to connect the beginning of the DUT to the FieldFox. — LOAD with correct connector type and gender to terminate the end of the DUT (if possible).
Page 80: Tdr Measurement Settings
TDR (Time Domain Reflectometry) - Option 215 TDR Measurement Settings TDR Measurement Settings Select CAT Mode, then TDR before making any setting in this chapter. How to select CAT Mode — Press Mode. — Then CAT/TDR. TDR Measurement (Format) You can select from 3 different TDR Formats. —...
Page 81: Tdr Start And Stop Distance
TDR (Time Domain Reflectometry) - Option 215 TDR Measurement Settings Dock Window — Press to relocate the Settings table to a position relative to the trace window. The setting persists through a Preset. Choose from the following: — Full (Default setting) Only the Settings table is shown on the screen. The trace window is temporarily not shown.
Page 82: Frequency Mode
TDR (Time Domain Reflectometry) - Option 215 TDR Measurement Settings — Press Sweep 3 — Then TDR Sweep — Choose one of the following: Auto — Low pass frequency settings are calculated based on the current number of points. The Stop Frequency and Resolution settings can be changed to any value.
Page 83: Cable (Correction) Specifications
TDR (Time Domain Reflectometry) - Option 215 TDR Measurement Settings Cable (Correction) Specifications By default, the FieldFox does NOT correct TDR measurements to account for the inherent loss of a cable. However, to make more accurate TDR measurements, the Cable Loss and Velocity Factor values should be considered.
Page 84 TDR (Time Domain Reflectometry) - Option 215 TDR Measurement Settings DTF Cable Specifications — Then — Select Cable Corr — Auto Use Cable Loss and Velocity Factor values from a Cable file. See “How to Edit, Save, and Recall a Cable File” below. This will overwrite a manually-entered value.
Page 85 TDR (Time Domain Reflectometry) - Option 215 TDR Measurement Settings Clear All then Yes. Remove all Freq/Loss pairs from the table and — resets header information — Press Done to close the Cable Editor. How to Save or Recall a Cable Save Cable —...
Page 86: Window Settings
TDR (Time Domain Reflectometry) - Option 215 TDR Measurement Settings The Loss value for the measurement is interpolated from the Freq/Loss pairs at the Center Freq: 1 GHz = 0.1 dB/m 1.8 GHz = 0.18 dB/m 2 GHz = 0.2 dB/m The correction for loss at 5 meters in one direction: 0.18 dB/m * 5m = 0.9 dB.
Page 87: Tdr Units
TDR (Time Domain Reflectometry) - Option 215 TDR Measurement Settings Network Analyzer Windows Frequency Span and TDR Window Selection for Step Rise Time (Approximated) The following table shows the approximated relationship between the frequency span and the window selection for impulse width and step rise time. Refer to Figure 5-1 on page Window...
Page 88: About Alias Faults
TDR (Time Domain Reflectometry) - Option 215 TDR Measurement Settings Start Frequency – Start frequency that is used to calculate TDR. Stop Frequency – Stop frequency that is used to calculate TDR. Range Resolution. Indicates the accuracy of the distance to fault measurement.
Page 89: How To Prevent Undersampling
TDR (Time Domain Reflectometry) - Option 215 TDR Measurement Settings An un-terminated cable (with NO perfect load at the end) will show faults that appear to be beyond the end of the cable. These are NOT alias faults. These faults appear as the signal reflects off the open at the end of the cable and travels back down the cable toward the connection at the FieldFox.
Page 90 TDR (Time Domain Reflectometry) - Option 215 TDR Measurement Settings Keysight N9915-90020 User’s Guide...
Page 91: Na (Network Analyzer) Mode
Keysight Handheld Analyzers N99xxC User’s Guide 6 NA (Network Analyzer) Mode Learn more about NA Mode measurements in the FieldFox Supplemental Online Help: https://rfmw.em.keysight.com/wireless/helpfiles/FieldFoxOnlineSupplement alHelp/Home.htm. In this Chapter “About S-parameters” on page 93 “Mixed-Mode S-Parameters” on page 94 “Parameter Conversion” on page 95 “Receiver Measurements”...
Page 92 NA (Network Analyzer) Mode “Output Power” on page 109 “System Impedance (Z0)” on page 110 “Port Extensions” on page 110 “Velocity Factor” on page 111 “Increase Dynamic Range” on page 114 See Also “Why and When to Calibrate” on page 129 “All about Markers”...
Page 93: Na Mode Settings
NA (Network Analyzer) Mode NA Mode Settings NA Mode Settings Select NA Mode before making any setting in this chapter. How to select NA Mode 1. Press Mode_. 2. Then NA. About S-parameters S-parameters (scattering parameters) are used to describe the way a device modifies a signal.
Page 94: Mixed-Mode S-Parameters
NA (Network Analyzer) Mode NA Mode Settings S21 and S12 transmission measurements are used to measure the loss or gain through a DUT over a specified frequency range. Both ends of the DUT must be connected to the FieldFox. The FieldFox signal source is transmitted out one of the test port connectors, through the DUT, and into the other test port connector How to measure S-parameters...
Page 95: Parameter Conversion
NA (Network Analyzer) Mode NA Mode Settings All FieldFox settings and features are supported (except Parameter Conversion) with mixed-mode S-parameters. Learn more about Balanced Measurements with the FieldFox in the FieldFox Supplemental Online Help: https://rfmw.em.keysight.com/wireless/helpfiles/FieldFoxOnlineSupplem entalHelp/Home.htm. How to make mixed-mode S-parameter measurements 1.
Page 96: Receiver Measurements
NA (Network Analyzer) Mode NA Mode Settings ——Refl The displayed S-parameter is converted to Z or Y reflection, regardless of whether the S-parameter is reflection (S11 or S22) or transmission (S21 or S12). ——Trans The displayed S-parameter is converted to Z or Y transmission, regardless of whether the S-parameter is reflection (S11 or S22) or transmission (S21 or S12).
Page 97: Multi-Trace Configurations
NA (Network Analyzer) Mode NA Mode Settings Multi-Trace Configurations In NA Mode you can display multiple traces on the FieldFox screen. The graphic above shows a x3H configuration. Tr2 is the ACTIVE trace as indicated by the highlighted Tr2. Trace Setting Notes —...
Page 98: Quick Settings Table
NA (Network Analyzer) Mode NA Mode Settings How to select a multi-trace configuration 1. Press Trace 6 > Num of Traces 2. Then choose from the following: The default measurements depend on the options that are installed 1 trace standard configuration 2 traces overlayed on a single graticule 2 traces on separate graticules 3 traces on separate graticules...
Page 99: Calibration Settings
NA (Network Analyzer) Mode NA Mode Settings How to view and change Quick Settings — Press Meas Setup 4 > Settings. Next Page Previous Page — Press to view all settings. If these softkeys are NOT available, then all available settings fit on one page. —...
Page 100: Format
NA (Network Analyzer) Mode NA Mode Settings Format Select the display format in which to present measurement results. This setting can be changed at any time without affecting calibration accuracy. Learn more about Display Formats in the FieldFox Supplemental Online Help: https://rfmw.em.keysight.com/wireless/helpfiles/FieldFoxOnlineSupplem entalHelp/Home.htm.
Page 101: Frequency Range
NA (Network Analyzer) Mode NA Mode Settings — Imaginary Displays only the reactive portion of the measured complex data. The Y-axis is Unitless. — Z Magnitude Displays the effective impedance in ohms. — Unwrap Phase Same as Phase, but without 180 degree wrapping. Phase is unwrapped by comparing the phase from one data point to the next.
Page 102: Magnitude Offset
NA (Network Analyzer) Mode NA Mode Settings How to set Scale 1. Press Scale / Amptd. 2. Then choose from the following methods: — Autoscale Automatically adjusts the Y-axis to comfortably fit the Minimum and Maximum amplitude of the trace on the screen. —...
Page 103: Electrical Delay
NA (Network Analyzer) Mode NA Mode Settings — Then Magnitude Offset - Offsets the entire data trace by the specified value. — Then enter a positive or negative offset value in dB using the numeric keypad, the arrows, or the rotary knob. Press a multiplier key.
Page 104: Averaging
NA (Network Analyzer) Mode NA Mode Settings Emulate a projected phase shift in your measurement. For example, if you know that you need to add a cable and that the length of that cable will add a certain phase shift to your measurement, you can use phase offset to add that amount and simulate the complete device measurement.
Page 105: If Bandwidth
NA (Network Analyzer) Mode NA Mode Settings — Point averaging is usually faster than sweep averaging. However, you may need to increase the Point Average count to obtain the same level of noise reduction as with sweep averaging. 6. While averaging is in process, press Sweep 3 then Restart to restart the averaging at 1.
Page 106: Resolution (Number Of Data Points)
NA (Network Analyzer) Mode NA Mode Settings This setting can be changed at any time without affecting calibration accuracy. How to set Single or Continuous 1. Press Sweep 3. 2. Then choose one of the following: — Single Automatically sets Continuous OFF and causes FieldFox to make ONE sweep, then hold for the next Single key press.
Page 107: Triggering (Na)
NA (Network Analyzer) Mode NA Mode Settings The actual sweep time is shown on the FieldFox screen. See the Screen Tour “Screen Tour” on page 46. To increase the sweep time, enter a value that is higher than the actual sweep time. The increase will not be exactly the amount that you enter, as the actual sweep time is the composite of many factors.
Page 108 NA (Network Analyzer) Mode NA Mode Settings — (Point) An external trigger type that acquires exactly one point per trigger input. IMPORTANT! If trigger signals come faster than the FieldFox can process them, some triggers may be ignored or lost. To ensure triggers are recognized and processed in order, use the external trigger output function to indicate when the FieldFox is ready for another input trigger.
Page 109: Output Power
NA (Network Analyzer) Mode NA Mode Settings Trigger Slope Determines which edge of an External trigger signal initiates a sweep. 1. Press Sweep 3 > Trigger > Trig Slope 2. Then choose from the following: — Positive Sweep is initiated by the rising edge of signal at about 1.7V. —...
Page 110: System Impedance (Z0)
NA (Network Analyzer) Mode NA Mode Settings b. Then enter a value using the numeric keypad, the arrows, or the rotary knob. c. Press Enter. System Impedance (Z0) To accurately view data presented in Smith Chart format, first set the System Impedance.
Page 111: Velocity Factor
NA (Network Analyzer) Mode NA Mode Settings — Electrical delay applies to a specific trace — Port extensions apply to specific hardware ports Port Extensions and Electrical Delay can be set independently. When both are “Electrical set, the delay adds together. Learn more about Electrical Delay in Delay”...
Page 112 NA (Network Analyzer) Mode NA Mode Settings You can also set Velocity Factor by pressing Meas Setup 4 then Calibration (Settings). Big Marker Display States (A and B) This feature, available ONLY in NA Mode, allows you to view up to three Big or Super Big marker readouts.
Page 113 NA (Network Analyzer) Mode NA Mode Settings —Trace # - The marker# is created on this trace. Tr1 is selected by default. The corresponding Num Traces must first be selected. For example, to create a marker on Trace 3, first select Num Traces = x3. —Format –...
Page 114: Increase Dynamic Range
NA (Network Analyzer) Mode NA Mode Settings Increase Dynamic Range Dynamic range is the difference between maximum input power to the FieldFox receiver (without compressing the receiver), and the minimum measurable power (noise floor). Measurement accuracy is increased when the DUT response is at least 10 dB above the noise floor.
Page 115 Keysight Handheld Analyzers N99xxC User’s Guide Time Domain – Option 010 With NA Mode, Time Domain (Opt 010), frequency information is used to calculate and display measurements with time as the horizontal display axis. The response values appear separated in time allowing a different perspective of the test device's performance and limitations.
Page 116 Time Domain – Option 010 Gating Settings “Start, Stop, Center, and Span Gate Times” on page 125 “Gating Type” on page 125 Keysight N9915-90020 User’s Guide...
Page 117 Time Domain – Option 010 Overview Overview In normal NA Mode operation, the FieldFox measures the characteristics of a test device as a function of frequency. With Time Domain (opt 010), frequency information is used to calculate the inverse Fourier transform and display measurements with time on the horizontal display axis.
Page 118: Time Domain (Transform) Settings
Time Domain – Option 010 Time Domain (Transform) Settings Time Domain (Transform) Settings You can set and view most of the Time Domain settings on the Transform Settings table. Transform Settings Table The following settings (from Transform Stimulus Settings to Data Processing) are listed in the order they appear on the Transform Settings menu selection.
Page 119: Stimulus (Mode)
Time Domain – Option 010 Time Domain (Transform) Settings Stimulus (Mode) — There are three variations on how the Time Domain transform algorithm is applied to the frequency domain measurement. Each method has a unique application. — Lowpass Impulse - Highest resolution. Most useful for seeing small responses in devices that pass low frequencies, such as cables.
Page 120: Distance Units
Time Domain – Option 010 Time Domain (Transform) Settings — Then choose from: Start — Sets the transform start time. — Stop Sets the transform stop time. Zero (0) seconds is always the calibration reference plane. Negative values are useful if moving the reference plane. Distance Units When markers are present on a Time Domain trace, marker X-axis values are shown both in units of time (seconds) and distance.
Page 121: Line Loss And Velocity Factor
Time Domain – Option 010 Time Domain (Transform) Settings The Window setting applies to ALL traces. How to make Window setting — Press Measure Setup 4 — Then Transform More — Then — Then Transform Window — A settings table appears that allows you to navigate and select the following settings.
Page 122: Data Chain
Time Domain – Option 010 Time Domain (Transform) Settings About Velocity Factor and Line Loss — Velocity Factor is a property of the physical material of a cable. A VF of 1.0 corresponds to the speed of light in a vacuum, or the fastest VF possible. A polyethylene dielectric cable has VF = 0.66 and a cable with PTFE dielectric has VF = 0.7.
Page 123: Trace Settings
Time Domain – Option 010 Trace Settings Trace Settings The following two settings apply to specific traces. Transform Enable Enable Time Domain transform for the specific trace. — Select the trace. — Press Measure Setup 4 Transform — Then — Then choose from: Transform On —...
Page 124 Time Domain – Option 010 Gating Gating Perhaps the most beneficial feature of Time Domain transform is the Gating function. When viewing the Time Domain response of a device, the gating function can be used to “virtually” remove undesired responses. You can then simultaneously view a frequency domain trace as if the undesired response did not exist.
Page 125: Gating Type
Time Domain – Option 010 Gating Trace 4 shows the frequency response with gating enabled. How to make Time Domain Gating settings — Press Measure Setup 4 — Then Transform Gating — Then — Then choose from: — Gating is being performed. —...
Page 126 Time Domain – Option 010 Gating Gating Shape This setting defines the filter characteristics of the gate function. Choose from Minimum, Normal, Wide, Maximum. Time domain Gate Shape setting is shown in the graphic above. Gate Shape Passband Sidelobe Cutoff Time Minimum Gate Ripple Levels...
Page 127: Chapter 8, "Calibration For Na, Cat, And Vvm Modes
Keysight Handheld Analyzers N99xxC User’s Guide Calibration for NA, CAT, and VVM Modes Calibration removes the systematic errors that are associated with measurements in NA, CAT, and VVM Modes. Key presses are identical in all of these Modes. In this Chapter “Why and When to Calibrate”...
Page 128 Calibration for NA, CAT, and VVM Modes See Also Learn How to Make 75 ohm Measurements at the FieldFox Supplemental Online Help: https://rfmw.em.keysight.com/wireless/helpfiles/FieldFoxOnlineSupplement alHelp/Home.htm. Keysight N9915-90020 User’s Guide...
Page 129: Why And When To Calibrate
Calibration for NA, CAT, and VVM Modes Comprehensive Guide for Calibration Comprehensive Guide for Calibration Why and When to Calibrate There are well-defined and understood systematic errors that are measured and calculated during the calibration process. These errors are caused by leakage signals inside the FieldFox, by the frequency response of the FieldFox receivers, and by reflections inside the FieldFox that interact with the DUT.
Page 130: Calready
Calibration for NA, CAT, and VVM Modes Comprehensive Guide for Calibration — A THRU standard is used during some calibration steps to connect PORT 1 to PORT 2 in place of the DUT. A Flush THRU connection can be made when cables that connect with the DUT can mate with each other.
Page 131 Calibration for NA, CAT, and VVM Modes Comprehensive Guide for Calibration The following appears: Choose Calibration Method screen — Response Cal – Used to quickly calibrate ONE type of measurement using mechanical standards. Measurement accuracy is generally low. Learn more “Simple Response Cals”...
Page 132: Mechanical Cal
Calibration for NA, CAT, and VVM Modes Comprehensive Guide for Calibration Mechanical Cal Mechanical Calibration is performed using discrete standards from a Cal Kit. Several Cal Kit definitions are built into the FieldFox. To learn about Cal Kit definitions, refer to the Application Note, “Specifying Calibration Standards and Kits for Keysight Vector Network Analyzers,”...
Page 133 Calibration for NA, CAT, and VVM Modes Comprehensive Guide for Calibration 1. S-parameters – Verify that these are all of the S-parameters that you want calibrated. If not, press Esc to terminate the calibration process, then return to the Trace menu to display all of the traces to be calibrated. Learn how in “Multi-Trace Configurations”...
Page 134: Ecal
Calibration for NA, CAT, and VVM Modes Comprehensive Guide for Calibration Begin Calibration 1. Press Start Calibration. If an error appears (“Failure to compute calibration steps…”), check to ensure that the frequency range of the Cal Kit covers the frequency range of the measurement. You can verify the frequency range of your Cal Kit at: www.keysight.com/find/fieldfoxsupport.
Page 135 Calibration for NA, CAT, and VVM Modes Comprehensive Guide for Calibration You can perform the following calibrations with ECal: — 1-Port Reflection calibration — Full 2-Port calibration Simple ECal ON: When choosing Full 2-port calibration, if you are able to connect your ECal simultaneously to both device ports, you should use Simple ECAL (i.e., this ensures that you are using the correct Thru calibration model).
Page 136 Calibration for NA, CAT, and VVM Modes Comprehensive Guide for Calibration 2. Connect the ECal module USB cable to the FieldFox USB. 3. Allow the module to warm up until it indicates READY. This may take several minutes. 4. Connect the ECal module ports to the FieldFox at the calibration reference plane (where the DUT will be connected).
Page 137: Simple Response Cals
Calibration for NA, CAT, and VVM Modes Comprehensive Guide for Calibration 10.Press Start Calibration. When prompted, verify the ECal module connection, then press Measure. The standards within the ECal module are automatically connected and measured. ’Unknown THRU’: When prompted: “Connect port 1 to port 2", then connect port and port 2, using a coaxial cable or an appropriate thru adapter.
Page 138 Calibration for NA, CAT, and VVM Modes Comprehensive Guide for Calibration 1-port response cals are also available from the Mechanical Cal menu. Learn more in “Calibration Type” on page 139. Normalize uses a THRU standard or cable between port 1 and port 2 to cal an S21 and S12 Transmission measurement (NA Mode) and a 2-port Insertion Loss measurement (CAT Mode).
Page 139: View Cal
Calibration for NA, CAT, and VVM Modes Comprehensive Guide for Calibration View Cal From the Choose Calibration screen (see “How to Perform a Calibration” on page 130), press View Cal to see the following screen: The top box shows the properties of the current calibration that you performed and the displayed S-parameters that it is correcting.
Page 140 Calibration for NA, CAT, and VVM Modes Comprehensive Guide for Calibration Definitions: Non-insertable DUT – A device whose Insertable DUT – A device whose connectors connectors could NOT mate together. They could mate together. They have the same type either do not have the same type of connector of connector and opposite or no gender.
Page 141 Calibration for NA, CAT, and VVM Modes Comprehensive Guide for Calibration Standards: OPEN, SHORT, LOAD on BOTH ports. Any THRU between ports. Based on the SOLR/Unknown THRU calibration. For more information on the Unknown THRU process, see the FieldFox Supplemental Online Help: https://rfmw.em.keysight.com/wireless/helpfiles/FieldFoxOnlineSupplem entalHelp/Home.htm.
Page 142: Isolation Step
Calibration for NA, CAT, and VVM Modes Comprehensive Guide for Calibration 1-port Response Cals (Open or Short) Calibrate the magnitude and phase of a measurement using ‘modeled’ mechanical standards. Measurement accuracy is better than Simple Response Cals (available on the main Cal page - see “Calibration Type”...
Page 143: Waveguide Calibrations
Calibration for NA, CAT, and VVM Modes Comprehensive Guide for Calibration If the first calibration step does NOT prompt you to connect Load standards, then the Cal Kit probably does not contain an Isolation standard. You can use DataLink software to edit the Cal Kit and add an isolation standard using a Load standard.
Page 144: Enhanced Response Optimization
Calibration for NA, CAT, and VVM Modes Comprehensive Guide for Calibration a. Select User Waveguide. Then press Done. b. Then DTF Cable Specifications > Edit/Save/Recall Cables > Edit Cable. c. Scroll to set Waveguide Definition. The default setting is VF Corr = Auto.
Page 145: Interpolation
Calibration for NA, CAT, and VVM Modes Comprehensive Guide for Calibration — NonReciprocal (default) An amplifier is a Non-Reciprocal device because it has gain in the forward direction, and very high loss (isolation) in the reverse direction. This choice provides the best correction for non-reciprocal devices, and reasonable correction for reciprocal devices.
Page 146: Save The Calibration
Calibration for NA, CAT, and VVM Modes Comprehensive Guide for Calibration Save the Calibration After performing any type of calibration, you can save the FieldFox settings along with the calibration into a STATE (*.sta) file. These settings and calibration can then be recalled as necessary. To learn how, see “Saving and Recalling Files”...
Page 147: Apply Nearest (Na Mode Only)
Calibration for NA, CAT, and VVM Modes Comprehensive Guide for Calibration Apply Nearest (NA Mode Only) When Apply Nearest is pressed, interpolation is turned off and the nearest calibration point is applied when the start stop frequencies are changed for the current sweep.
Page 148: Verifying Calibration And Jumper Cable Integrity
Calibration for NA, CAT, and VVM Modes Verifying Calibration and Jumper Cable Integrity Verifying Calibration and Jumper Cable Integrity After calibrating, it is important to verify that the calibration is good. When using a jumper cable, also verify that the cable is of high quality. Verify a Calibration —...
Page 149: Calibration Method Summary
Calibration for NA, CAT, and VVM Modes Calibration Method Summary Calibration Method Summary — Mechanical Full 2-port Cal is ALWAYS the most accurate Cal method. The quality of a Mechanical Cal is completely dependent on the quality of the OPEN, SHORT, LOAD standards and the quality of the standard connections.
Page 150 Calibration for NA, CAT, and VVM Modes Calibration Method Summary Keysight N9915-90020 User’s Guide...
Page 151 Keysight Handheld Analyzers N99xxC User’s Guide SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) To better reflect the enhancements implemented during the alignment process, for firmware versions A.10.15 “IF Flatness Alignment” is now > referred to as “Channel Equalization” or “Channel Equalization Alignment” (ChanEQ Alignment) SA mode measures signals at the SA RF IN connector.
Page 152 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) The graphic above shows an SA display with markers. Carrier with 5 kHz frequency modulation and deviation of 1 kHz. In this Chapter “Frequency Range” on page 155 “Baseband (N99xxC-Series FieldFox Models Only with Option 350 RTSA or Option 233 SA–Mixed Models)”...
Page 153 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) “Single / Continuous / Restart” on page 210 “Points ” on page 210 “Trace Display States (SA mode)” on page 211 “Average Type” on page 215 “Average Count” on page 216 “Alignments” on page 217 “RF Burst Amplitude Alignment”...
Page 154 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) See Also Interference Analyzer: “Spectrogram Display (SA Option)” on page 528 “Waterfall Display” on page 532 “Record/Playback (SA Option)” on page 534 Optional Settings: “All about Markers” on page 763 “All about Limit Lines” on page 778 “Saving and Recalling Files”...
Page 155: Sa Mode Settings
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings SA Mode Settings Select SA mode before making any setting in this chapter. Because there is no calibration, these settings can be made in any order. How to select SA mode —...
Page 156 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings — Then choose from the following: Freq Span —Center frequencies. This is the most common method of entering frequency range. Enter the frequency of interest. The Center frequency is at the exact center of the X-axis. The Frequency Span places half of the frequency range on either side of center.
Page 157: Baseband (N99Xxc-Series Fieldfox Models Only With Option 350 Rtsa Or Option 233 Sa-Mixed Models)
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings CF Step Auto Manual — Then —Auto Each press of the arrows increments or decrements the value by 1/10th (one division) of the current frequency span. Note: To change this setting from Manual to Auto, press CF Step twice. —Manual Type a step size value using the numeric keypad, then select a multiplier key.
Page 158 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings — Optional: Adjust the preamp /gain for a lower power setting (Requires Option 235): — Press Freq/Dist > Baseband [Disabled] Then choose: ——b1 Preamp Gain High Low (Default == High (standard preamp), Low is approximately –3 dB from the High (standard preamp) setting).
Page 159: Radio Standard
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Figure 9-2 Baseband Display Annotation When Enabled (SA mode) Radio Standard A Radio Standard is a collection of settings that are applied to the FieldFox for specific RF protocols. When a Radio Standard is applied, the FieldFox frequency and channel settings change to that of the standard.
Page 160: Channel Selection
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Radio Standard — Then — Then select a standard using the arrows or rotary knob and press Enter. Custom Radio Standards Your own custom Radio Standards can be imported into the FieldFox. Custom standards are created in *.csv (spreadsheet) format.
Page 161 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings How to Enable Channel selection 1. Press Freq/Dist > More 2. Then Unit Freq Chan With Unit == Chan, Channel Direction becomes available and CF Step alters to Channel Step. How to change the Channel Number of the Measurement Chan With Unit ==...
Page 162: Reverse Swap
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Channel number X-axis annotation — Dn indicates Downlink channels. — Up (not shown) indicates Uplink channels — (−) indicates that the lowest frequency in the channel (128) is at the left edge of the screen.
Page 163: Scale And Units
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Scale and Units Adjust the Y-axis scale to see the relevant portions of the data trace. The Y-axis is divided into 10 graticules. A acquisition is shown on the screen as a solid horizontal bar that can be placed at any graticule.
Page 164: External Gain
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings PSD Function — Enables/disables the Power Spectral Density Function (PSD Function) which is a way to normalize the SA measurement to a 1 Hz “Power Spectral Density Bandwidth. (Default == OFF). Learn more, see (PSD) Function (SA mode Only)”...
Page 165: Attenuation Control
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Attenuation Control Both the RF Attenuation and Preamp functions control the power level into the When too much power is present at the RF Input port, ADC Over Range appears on the FieldFox screen. This does not necessarily mean that damage has occurred, but that the measurement is probably compressed.
Page 166: Preamplifier Control (Opt 235)
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings — RF Attenuation is set manually. The default Attenuation setting is 10 dB. Enter a value between 0 to 30 dB in 5 dB steps using the numeric keypad, the arrows, or the rotary knob.
Page 167: Field Strength Measurements
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Field Strength Measurements To measure the strength of any signal transmitted through the air, an antenna must be connected to the FieldFox. The Field Strength feature allows you to enter the frequency response of the receiving antenna (the Antenna Factor) and associated cabling, and then have amplitude corrections automatically compensate the displayed trace for that response.
Page 168 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Antenna Off — – Opens a softkey menu to enable/disable a antenna and edit, save, create a new antenna factors table, recall, and set a “How to Use the Antenna and storage device location.
Page 169: Using The Antenna/Cable Editor
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings How to Use the Antenna and Cable Softkeys The following menu appears when any of the above Antenna Off or Cable Off softkeys are pressed: Antenna ON OFF Cable ON OFF —...
Page 170 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Figure 9-4 FieldFox Antenna Editors – Settings and Values How to use the Antenna/Cable Editor Before editing the antenna settings, it is important to know whether you are using a magnetic H-field (dB S/m) or electric E-field (dB /m) antenna.
Page 171 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings setting) if you just want standard Amplitude units, with a simple dB offset supplied by the correction table. This makes the correction basically identical to a Cable correction. To get Field Strength units, you must choose either dB /m (E-field or dipole antenna), or dB S/m (H-field or loop antenna) to properly identify the Antenna Factors in the table.
Page 172 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings When the table edits are complete 1. Press Done to close the Antenna/Cable Editor. PressAntenna Off On > On. Then choose your final measurement amplitude unit, under Scale/more. If you selected either dB /m dB S/m for the Antenna Factor unit, you...
Page 173: Source Tracking Offset And Offset Reversal
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings — All Antenna and Cable files are saved and recalled as *.csv files, which allows them to also be read by spreadsheet programs. — The FieldFox can also read *.ANT (Antenna) files that were created from older Keysight Spectrum Analyzers.
Page 174: Tune & Listen (Am/Fm)
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Tune & Listen (AM/FM) The Tune & Listen feature can be used to identify an interfering AM or FM signal. The demodulated AM or FM signal can be heard through the internal speaker or through headphones using the 3.5 mm jack located on the FieldFox side panel.
Page 175 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings “Audio Demod ON and OFF” on page 177 “Setting the Marker Counter Precision Softkey” on page 177 “Setting the Mkr->TuneFreq Softkey” on page 178 How to select Tune & Listen —...
Page 176 Set the Tune Frequency using one of three methods: 1. Selecting Preset > Mode Preset, sets Tune Frequency to 3.25 GHz (e.g., for a N9914C FieldFox). 2. Specify Tune Frequency: a. Press Meas Setup 4 > Tune Freq b. Enter a value using the numeric keypad, arrows, or the rotary knob.
Page 177 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings To select Listen Time: — Press Meas Setup 4 > Listen Time — Enter a value using the numeric keypad, arrows, or the rotary knob. Then select a multiplier key. Learn about multiplier abbreviations. Volume Control To increase or decrease the Volume of the demodulated signal: —...
Page 178: Analog Demod
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Setting the Mkr->TuneFreq Softkey When AM Tune & Listen, FM (narrow) Tune & Listen, or FM (wide) Tune & Listen are selected, you can choose from the following: — Press Marker > Normal —...
Page 179 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Figure 9-6 AM DSB (Metrics) – Demodulation Spectrum In the graphic above, Analog Demod ON and Demod Metrics is indicated above in the x2 displays of carrier spectrum content. For this example, AM Modulation Metrics are displayed in the lower half of the display.
Page 180 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings How to select Analog Demod (Metrics) Analog demodulation can demodulate AM DSB, AM SSB, FM, FM Stereo / RDS, PM signals. Under analog demodulation metrics the following information is reported for each signal type: Carrier power, modulation rate, SINAD, THD, plus deviation, depth, or RMS depending on the signal.
Page 181 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Tune & Listen OFF — – Opens a menu of Tune & Listen demod softkeys. Tune & Listen can be set when you are in Analog Demodulation mode, so you can enable Tune &...
Page 182 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Peak OFF ON — – This adds peak positive and peak negative metrics to the main metrics measurement. For example, in FM peak ON will include peak positive (Peak +) and negative (Peak -) frequency deviation metrics to appear.
Page 183 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings — Press BW 2 then choose: — AF RBW – Sets the audio frequency (AF) resolution BW for the AM or FM demodulated signal (Manual or Auto; Default == Auto). Setting the Audio Capture Playback Softkeys The FieldFox analog demodulation audio capture playback feature allows you to capture/record the demodulated audio associated with an analog...
Page 184 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Stereo Channel – When Demod Type == FM Stereo / RDS, this — softkey sets the type of audio to be captured and stored: (Choose Mono (L+R), Left (L), Right (R), and Difference (L–R).
Page 185 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings 5-Pole Butterworth LPF with 3 dB cutoff frequency 3 kHz of 3 kHz. 5-Pole Butterworth LPF with 3 dB cutoff frequency 15 kHz of 15 kHz. 3-Pole Butterworth LPF with 3 dB cutoff frequency 30 kHz of 30 kHz.
Page 186 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Bandpass Filter None — – Sets the Bandpass Filter for the current measurement (Choices: None, CCITT, A-Weighted, C-Weighted, C-Message, CCIR-1k Weighted, CCIR-2k Weighted, or CCIR Unweighted). Default == None. — More –...
Page 187 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Figure 9-7 AM DSB (Metrics) – Demodulation Waveform Figure 9-8 FM Metrics – Demodulation Spectrum Keysight N9915-90020 User’s Guide...
Page 188 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Figure 9-9 FM (Metrics) – Demodulation Waveform Figure 9-10 FM (Metrics) - Counter Gate and FM Demodulation Waveform Keysight N9915-90020 User’s Guide...
Page 189 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Figure 9-11 Audio Capture with Annotation Examples Keysight N9915-90020 User’s Guide...
Page 190: Independent Source/Tracking Generator
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Independent Source/Tracking Generator For best results, when using the independent source feature, all alignment and the battery saver features should be turned off. Refer to “All Alignment and Align All Now” on page 220 “Preferences”...
Page 191 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Pulse Gen — Only available for B/C model equipped with Pulse Generator license (Option 357) and operating in SA mode. SrcPg “Track the Pulse Generator ” on annotated on the screen. Refer to page 193.
Page 192 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings To prevent Battery Saver from interrupting the source, turned off Battery Saver. Learn more in “Battery Saver” on page 817. — Press System 7 > Preferences Preferences > Edit — Then in the table, select Battery Saver value column and press —...
Page 193: Track The Pulse Generator
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Track the Pulse Generator This feature required Pulse Generator license (Option 357), allows the Independent Source mode to effectively retain the settings from the most recent activity, specifically when the Pulse Generator mode was last used with RF enabled.
Page 194 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Figure 9-16 Track the Pulse Gen in SA mode Example - FM Sine Modulated Signal Setup Using Pulse Generator Mode Keysight N9915-90020 User’s Guide...
Page 195: Resolution Bandwidth (Res Bw)
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Resolution Bandwidth (Res BW) In SA mode, the Res BW provides the ability to resolve, or see closely spaced signals. The narrower (lower) the Res BW, the better the spectrum analyzer can resolve signals.
Page 196: Af Rbw (Audio-Frequency Resolution Bw)
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings — Enter a Video BW value using the numeric keypad, the arrows, or the rotary knob. Then press a multiplier if necessary or press Enter. Setting VBW higher than RBW may smooth the trace. To change this setting from Man to Auto, press Video BW twice.
Page 197: If Output
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings For a more comprehensive tutorial, see Spectrum Analysis Basics (App Note 150) at https://www.keysight.com/us/en/assets/7018-06714/application-notes/595 2-0292.pdf How to set Sweep Type 1. Press BW 2 > Advanced Sweep Type > 2. Then choose from the following: —...
Page 198 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Learn more about the IF Output frequencies and bandwidths in the Supplemental Online Help: https://rfmw.em.keysight.com/wireless/helpfiles/FieldFoxOnlineSupplement alHelp/Home.htm. Figure 9-17 IF Output Wide with CF==225 MHz (Requires Option B04 or Option B10) How to select IF Output The IF Output signal is useful only in Zero Span.
Page 199 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Figure 9-18 SA Display Wide BW IF Out - Center Frequency 4 GHz (Requires Option B10) Keysight N9915-90020 User’s Guide...
Page 200: Sweep Acquisition
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Figure 9-19 SA Display Wide BW IF Out - Center Frequency 10 GHz (Requires Option B10) Sweep Acquisition Available only in non-zero span measurements, when Sweep Acquisition is set to Auto, the fastest sweep rate is achieved while maintaining full amplitude accuracy.
Page 201 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Figure 9-20 GSM Signal in Framed Data Format In the graphic above, a GSM signal in a framed data format; timeslot zero ON; all others OFF; PRF == 218 Hz, Duty Cycle == 12.5%. The pulsed signal becomes visible on every sweep update with SwpAcquisition == 50.
Page 202: Very Long Sweep Times
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Some Detector and Video Bandwidth settings will raise the Auto Sweep Acquisition value greater than 1. In these cases, manually setting Sweep Acquisition lower than the Auto value may have NO effect. Measurement speed specifications do NOT apply in Temperature Control mode.
Page 203 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Figure 9-21 GSM Signal, Framed Data Format The graphic above shows a GSM signal, framed data format, with timeslot 0 and 3 “on”. Sweep Time is set to approximately the frame interval. Press Single several times until the waveform section of interest is viewable and stable.
Page 204: Triggering
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Triggering SA STEP sweeps do not have trigger behavior. So, they are essentially always in “FREERUN" mode. If you try to set a trigger (other than FREERUN) in SA Step sweep, the FieldFox displays the following popup message: "Note: Trig Type has no effect while in STEP sweep mode"...
Page 205 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Sync This softkey is ONLY available when Trigger Type is set to Periodic. SA STEP sweeps do not have trigger behavior. So, they are essentially always in “FREERUN" mode. If you try to set a trigger (other than FREERUN) in SA Step sweep, the FieldFox displays the following popup message: "Note: Trig Type has no effect while in STEP sweep mode"...
Page 206 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings 2. Enter a value using the numeric keypad, the arrows, or the rotary knob. 3. Then select a multiplier key or press Enter. Learn more in “Multiplier Abbreviations” on page In Zero span, you can use Trigger Position as an easy way to set Trigger Delay “Triggering”...
Page 207 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings 3. Then select a multiplier key or press Enter. Learn more in “Multiplier Abbreviations” on page Auto Trigger Time While waiting for a valid trigger signal, Wait is annotated in the top left corner of the FieldFox screen.
Page 208: Fft Gating (Opt 238)
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Trigger Settings Annotation Trigger settings are annotated on the FieldFox screen as highlighted in the following image: — Square: Trig Type (VidT), AutoTrigger (a), Pos Slope (/), Neg Delay (delay-) —...
Page 209 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings important when using RF Burst or Video triggering in wider spans, because the signal providing those triggers has limited bandwidth. Learn more about Auto “Auto Trigger Time” on page 207. trigger in For more conceptual information on this topic, please refer to Spectrum Analysis Basics (App Note 150), pages 31 - 35, at...
Page 210: Single / Continuous / Restart
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Single / Continuous / Restart This setting determines whether the FieldFox measures continuously or only Single or Run / Hold +/- button is pressed. Use Hold / once each time the Single or to conserve battery power or to allow you to save or analyze a specific trace.
Page 211: Trace Display States (Sa Mode)
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Trace Display States (SA mode) In SA mode you can display up to four of the following types of trace states. All SA trace settings can be independently reset (either automatically, or manually) for each trace counter (MaxHold, MinHold, or Average) without resetting any other traces.
Page 212 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings — Clr /Wr (Clear/Write) Displays the actual measured data for each sweep. — MaxHold Displays the maximum response of the input signal at each data point over multiple sweeps. See also Average Count in “Average Count”...
Page 213: Detection Method
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Detection Method SA mode is capable of multiple simultaneous detector setup. Multiple trace detectors are NOT available when: – the FieldFox is set to Zero Span – Channel Measurements are enabled (i.e., Channel Power, Occupied Power, Adjacent Channel Power, and Spectrum Emission Mask) –...
Page 214 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Figure 9-24 Single and Multiple Detection Annotation - Examples Multiple Detector - with only detector 1, trace 1 active, and trace 1 is set to Clear-Write (Clr/Wr) and detector 1 is set to Peak (P).
Page 215: Average Type
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings — Auto [...] Displays the most appropriate Detection method based on other settings. [# is NOT shown] — Normal [#Nrm] Provides a better visual display of random noise than Positive peak and avoids the missed-signal problem of the Sample Mode.
Page 216: Average Count
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings 2. Then choose from the following: — Auto - The FieldFox chooses the most appropriate type of averaging for the current settings. When Detection Method is set to Average, a Noise Marker is present, or a Channel measurement is active, then Power Average is ALWAYS selected.
Page 217: Alignments
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Alignments To better reflect the enhancements implemented during the alignment process, for firmware versions A.10.15 “IF Flatness Alignment” is now > referred to as “Channel Equalization” or “Channel Equalization Alignment” Alignment).
Page 218 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings — InstAlign Amplitude Alignment — RF Burst Amplitude Alignment RTSA: — InstAlign Amplitude Alignment — WidePath Burst Trigger Alignment — Channel Equalization Channel Scanner: — InstAlign Amplitude Alignment EMI Measurements: —...
Page 219 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings — Uncoupled - when at least one of them is in a different state than the other ones Align All Now — Executed on demand, all of them, using the softkey.
Page 220 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings All Alignment and Align All Now IMPORTANT! It is recommended that you use Align All Now, because it Amptd Align Now, as well as, includes the individual alignment InstAlign Burst Align Now, and ChanEQ Align Now.
Page 221 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings How to Access Individual Alignments This section assumes access to individual alignments was activated using the FieldFox’s system settings’ Preferences. Once enabled, an Individual Alignments softkey is displayed. Refer to “Preferences”...
Page 222: Rf Burst Amplitude Alignment
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings different FieldFox receiver frequency bands, so even if the temperature hasn't changed, an alignment may be required when one changes the Center frequency. If a needed alignment cannot be performed, the user is notified about questionable amplitude AMPTD?.
Page 223 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings — Auto (Default setting) SA measurement applications monitor changes in internal temperature and the time since last alignment update and trigger the need for a new update when the alignment becomes stale.
Page 224: Display Line
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings different FieldFox receiver frequency bands, so even if the temperature hasn't changed, an alignment may be required when one changes the Center frequency. — Hold The alignment process is stopped, but the last alignment values are applied to subsequent sweeps.
Page 225: Noise Marker
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings “All about Limit Lines” on page 778. Learn more, Noise Marker For comparison purposes, electronic noise measurements are often displayed as though the measurement was made in a 1 Hz Res BW. However, making an actual measurement at a 1 Hz Res BW is extremely slow.
Page 226 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings “Noise Marker” on page 225. See also, Learn more, see “Creating and Importing *.csv Limit Line Files” on page 785. How to measure the PSD function: > > — Press Scale/Type More PSD Function ON OFF (Default == OFF).
Page 227: Logarithmic X-Axis Interpolation (Emi And Sa Modes Only)
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Logarithmic X-axis Interpolation (EMI and SA modes Only) Normally, limit lines are interpolated linearly between the defined limit points (i.e., as a delta dB per Hz). Sometimes the user may want to change the limit line interpolation so that it is logarithmic vs.
Page 228: Frequency Counter At Marker
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings — In non-Zero span, a Band Power Marker yields the total power over the specified frequency range. How to measure Band/Interval Power with a marker 1. Press Marker to create or select a Normal or Delta marker to use to measure Band/Interval Power.
Page 229: Audio Beep At Marker Power
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Time Zero Fixed Marker This feature was created to allow recall of vintage instrument states (older than Rev. 7.0) that included Zero span sweep with a trigger delay and at least one marker.
Page 230: Old Data Indicator (*)
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Channel Measurements The following situation can produce Meas UNCAL: — When the ResBW/VBW ratio exceeds 10,000, causing the VBW filter to reach the maximum capacity for averaging. Old Data Indicator (*) In SA mode, when the current trace does not exactly match the annotation that is on the screen, an asterisk is displayed in the upper-right corner of the screen graticule area.
Page 231: Measurement Preset
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Channel Measurements When you first select a Channel Measurement, then select a Radio Standard, the BW, Offset, RRC, Integration BW, and Span settings are changed to those of the standard. In addition, Res BW can also change when set to ‘Auto(couple)’.
Page 232: Channel Power (Chp)
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Channel Measurements Channel Power (CHP) Channel Power measures total power over the specified Integrated BW. The Integration Bandwidth (IBW) can be adjusted to measure the power over multiple channels. Figure 9-26 Channel Power Measurement The following two Channel Power levels are displayed: —...
Page 233 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Channel Measurements Integration Bandwidth When Channel Power is selected, vertical posts appear on the display to mark the current Integration Bandwidth setting. The displayed Channel Power and Power Spectral Density values are measured and calculated over the specified Integration Bandwidth.
Page 234 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Channel Measurements Figure 9-27 Occupied Bandwidth Measurement The graphic above shows an OBW measurement; Chan 190 Downlink; GSM850 Radio Standard How to Select Occupied Bandwidth 1. Press Measure_1 2. Then Channel Measurements 3. Then Occupied BW When Occupied Bandwidth is selected, the following settings are maintained from a previous measurement: Center Frequency, Preamp ON|OFF, and RF...
Page 235 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Channel Measurements To change Frequency Span: 1. Press Freq/Dist > Freq Span Integration BW (IBW) is coupled to the Frequency Span setting. Frequency Span is 50% wider than the IBW (e.g., if the IBW value is 1 MHz, then the Frequency Span value is 1.5 MHz).
Page 236 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Channel Measurements Figure 9-28 GSM 850-Ch 251-Up with one Offset In the graphic above, frequencies (MHz) are added to illustrate offset and integ BW. Data in the ACPR graphical chart is always presented in dBm for the carrier, and dBc (dB below the carrier) for the offsets.
Page 237 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Channel Measurements Frequency Range/Channel When a Radio Standard is selected, the appropriate center frequency or channel and span is set automatically. The frequency or channel number can then be changed from the Freq/Dist menu. Learn how to select a Radio Standard and channels in “Radio Standard”...
Page 238 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Channel Measurements 1. Press Limit 8 > Offset (1,2,3) 2. Then choose from the following: — LowerOffsetLimit Sets a limit for the lower-frequency offset. — Upper OffsetLimit Sets a limit for the higher-frequency offset. 3.
Page 239 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Channel Measurements RRC Weighting RRC, or Root-Raised-Cosign weighting, is offered with Channel Power and ACPR measurements. When RRC Weighting is applied to transmitted and received power, the edges of the channel are ‘smoothed’ to help prevent interference. To accurately measure a channel that has RRC weighting, set the same value of RRC weighting as that used in the transmitter and receiver.
Page 240: How To Set Up Emf Settings (Requires Emf (Option 358), Gps (Option 307), And Sa Mode (Option 233-Mixed Analyzers))
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) How to Set Up EMF Settings (Requires EMF (Option 358), GPS (Option 307), and SA Mode (Option 233–Mixed Analyzers)) How to Set Up EMF Settings (Requires EMF (Option 358), GPS (Option 307), and SA Mode (Option 233–Mixed Analyzers)) If OTA or SA mode does not detect an EMF Option 358 license, then the EMF application and the EMF antenna’s axes must be set up manually.
Page 241 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) How to Set Up EMF Settings (Requires EMF (Option 358), GPS (Option 307), and SA Mode (Option 233–Mixed Analyzers)) This section reviews the steps in setting up an EMF measurement, using a EMF antenna.
Page 242 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) How to Set Up EMF Settings (Requires EMF (Option 358), GPS (Option 307), and SA Mode (Option 233–Mixed Analyzers)) Figure 9-30 Example of EMF with Triaxial Antenna Keysight N9915-90020 User’s Guide...
Page 243 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) How to Set Up EMF Settings (Requires EMF (Option 358), GPS (Option 307), and SA Mode (Option 233–Mixed Analyzers)) EMF Setup Procedure When the EMF antenna correction factors are imported, EMF (Option 358) couples many settings to ease setting up the EMF measurement (e.g., Apply Corrections is enabled, all X, Y, and Z antenna axes are enabled, and Amp Corr Select is set to ARIA6000 or FSH3D Triaxial XYZ)
Page 244 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) How to Set Up EMF Settings (Requires EMF (Option 358), GPS (Option 307), and SA Mode (Option 233–Mixed Analyzers)) If the antenna factor import is successful, the FieldFox displays: “Success: Antenna Factors Imported: EMF Antenna ID: ->[R] Antenna ID: ARIA6000-1006 ->[]“.
Page 245 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) How to Set Up EMF Settings (Requires EMF (Option 358), GPS (Option 307), and SA Mode (Option 233–Mixed Analyzers)) 4. Enabling the imported EMF antenna factors and Cable factors: a. Verify that the Channel Power measurement is set: Measure 1 > Channel Measurements Channel Power >...
Page 246 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) How to Set Up EMF Settings (Requires EMF (Option 358), GPS (Option 307), and SA Mode (Option 233–Mixed Analyzers)) — Then <Back to exit to the previous softkey menu. e. Optional (Tri-Axial XYZ Antenna): Verifying antenna and cable corrections are applied: i.
Page 247 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) How to Set Up EMF Settings (Requires EMF (Option 358), GPS (Option 307), and SA Mode (Option 233–Mixed Analyzers)) ii. Optional: Press More then — Press View Corrections OFF ON to turn ON and OFF Pink Trace - Antenna/Cable corrections.
Page 248 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) How to Set Up EMF Settings (Requires EMF (Option 358), GPS (Option 307), and SA Mode (Option 233–Mixed Analyzers)) — Press Scale/ Amptd > More > Unit dBm choose units (default == dBm). —...
Page 249 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) How to Set Up EMF Settings (Requires EMF (Option 358), GPS (Option 307), and SA Mode (Option 233–Mixed Analyzers)) 10. Press Meas Setup 4 > EMF Active Save Axis Result – the display is >...
Page 250 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) How to Set Up EMF Settings (Requires EMF (Option 358), GPS (Option 307), and SA Mode (Option 233–Mixed Analyzers)) — Description – edits the name of the current antenna settings table — Antenna Factor Unit – edits the units from dB /m electric antenna factor to dB S/m for the magnetic antenna factors.
Page 251 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) How to Set Up EMF Settings (Requires EMF (Option 358), GPS (Option 307), and SA Mode (Option 233–Mixed Analyzers)) Figure 9-33 Example Editing and Adding a New X axis antenna is shown. Editing Cable Correction Factors and Adding New Cable Factors This section contains two procedures illustrating how to edit the Cable Factors settings table values.
Page 252 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) How to Set Up EMF Settings (Requires EMF (Option 358), GPS (Option 307), and SA Mode (Option 233–Mixed Analyzers)) a. Then press Cable Off > Edit Cable to edit the existing cable’s Frequency and Cable Loss table values that are stored in the FieldFox [:Internal]:\Cable\ directory (Refer to Figure 9-33).
Page 253 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) How to Set Up EMF Settings (Requires EMF (Option 358), GPS (Option 307), and SA Mode (Option 233–Mixed Analyzers)) c. Press Save Cable to save your changes. See also Chapter , “File Saving Naming Options” and then to “Alpha Numeric Editing”...
Page 254: Spectrum Emission Mask (Sem) - (Sa Mode Only)
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Spectrum Emission Mask (SEM) — (SA Mode Only) Spectrum Emission Mask (SEM) — (SA Mode Only) This section explains how to make the spectrum emission mask, (SEM), measurement. SEM compares the total power level within the defined carrier bandwidth and offset channels on both sides of the carrier frequency, to levels allowed by standard.
Page 255 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Spectrum Emission Mask (SEM) — (SA Mode Only) — Spectrum Emission Mask Pass/Fail – A PASS indicates the displayed SEM is within the current boundaries specified. A FAIL indicates the current signal fails with the specified parameters. Figure 9-35 SEM Example Keysight N9915-90020 User’s Guide...
Page 256 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Spectrum Emission Mask (SEM) — (SA Mode Only) Figure 9-36 SEM Example FAIL Data - Absolute Limit (Blue), Relative Limit (Violet), Trace (Yellow), and Tabular Data How to select Spectrum Emission Mask (SEM) Measurement —...
Page 257 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Spectrum Emission Mask (SEM) — (SA Mode Only) — Total Pwr Ref (Default == Total Pwr Ref) is the total integrated reference channel power (dBm) is measured and used as the Auto Power Ref value. Peaks found in Offset segments remain in (dBm) units for direct comparison with (dBm) limits.
Page 258 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Spectrum Emission Mask (SEM) — (SA Mode Only) — Ofst Freq Stop Sets the offset frequency stop value. (Default/Maximum == Value varies with model and options, Minimum == 0 Hz). — Res BW Auto/Manual (Default == Auto).
Page 259 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Spectrum Emission Mask (SEM) — (SA Mode Only) 4. Setting the Limit Lines Two Limit traces are available, an Absolute Limit and a Relative Limit. Both are defined and applied only over the Offset measurement regions. There is no Limit definition or application for the Reference Channel itself.
Page 260 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Spectrum Emission Mask (SEM) — (SA Mode Only) 5. Setting the Detectors The Trace menu shows that two Detector controls are available, one for the Reference Channel (default Auto is Average to facilitate the Power Integration), and another for all the Offset segments (default Auto is PEAK, to facilitate finding PEAK signal energy when comparing against Limits).
Page 261: Iq Analysis (Sa Mode Only)
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) IQ Analysis (SA Mode Only) IQ Analysis (SA Mode Only) This feature’s intended use is that the Streamed data will be sent to another computer. That computer or another one will act as a SCPI controller and is required for actually controlling the streaming, in particular setting up network configuration data and starting and stopping the streaming.
Page 262 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) IQ Analysis (SA Mode Only) How to Setup IQ Analysis General General setup for IQ Analysis: 1. Press Meas Setup 4 > IQ Analysis General > 2. Press IQE Sample Rate > Auto (default). 3.
Page 263 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) IQ Analysis (SA Mode Only) c. Then to adjust receiver gain: Typically, the goal is to be able to see the desired signal that you want to capture as close as possible to the top of the display grid on the screen, without causing an ADC over range to be displayed.
Page 264: Effective Isotropic Radiated Power (Eirp) - (Sa Mode Only)
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Effective Isotropic Radiated Power (EIRP) – (SA Mode Only) Effective Isotropic Radiated Power (EIRP) – (SA Mode Only) How to Select Effective Isotropic Radiated Power (EIRP) 1. Press Measure 1 2. Then Channel Measurements EIRP Off to open a menu of softkeys to set >...
Page 265 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Effective Isotropic Radiated Power (EIRP) – (SA Mode Only) — Save Horizontal – Saves the current horizontal EIRP value (dBm). — Save Vertical – Saves the current vertical EIRP value (dBm). — Clear H & V –Clears the saved horizontal and vertical EIRP values (dBm).
Page 266 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Effective Isotropic Radiated Power (EIRP) – (SA Mode Only) Keysight N9915-90020 User’s Guide...
Page 267 Keysight Handheld Analyzers N99xxC User’s Guide 10 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode measures signals at the SA RF IN connector. For a comprehensive RTSA mode tutorial, see Understanding and Applying Probability of Intercept in Real-time Spectrum Analysis (App Note) at https://www.keysight.com/us/en/assets/7018-04381/application-notes/599 1-4317.pdf.
Page 268 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 Figure 10-2 The graphic above shows an RTSA display shows an RTSA display of an 80 MHz linear FM chirp with a center frequency of 1 GHz (requires Option B10). Keysight N9915-90020 User’s Guide...
Page 269 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 In this Chapter: “Frequency Range” on page 271 “Scale and Units” on page 273 “External Gain” on page 273 “Attenuation Control” on page 274 “Preamplifier Control (Opt 235)” on page 275 “Check for Compressed Measurements” on page 275 “Spectrum Selection”...
Page 270 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 See Also Optional Settings: “All about Markers” on page 763 “All about Limit Lines” on page 778 “Saving and Recalling Files” on page 852 Keysight N9915-90020 User’s Guide...
Page 271: Rtsa Mode Settings
RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings RTSA Mode Settings Select RTSA Mode before making any setting in this chapter. Because there is no calibration, these settings can be made in any order. How to select RTSA Mode —...
Page 272 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings How to set Frequency Range — Press Freq/Dist. — Then choose from the following: —Center Freq Span frequencies. This is the most common method of entering frequency range. Enter the frequency of interest. The Center frequency is at the exact center of the X-axis.
Page 273: Scale And Units
RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings Scale and Units Adjust the Y-axis scale to see the relevant portions of the data trace. The Y-axis is divided into 10 graticules. A acquisition is shown on the screen as a solid horizontal bar that can be placed at any graticule.
Page 274: Attenuation Control
RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings — Enter a value using the numeric keypad, the arrows, or the rotary knob (positive for gain; negative for loss). Values in increments less than 5 dB must be typed using the numeric keypad. Then press Enter ExtGain xx dB is shown at the top of the screen.
Page 275: Preamplifier Control (Opt 235)
RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings Auto — RF Attenuation is set by adjusting the acquisition. As the acquisition is lowered, for example from –10 dBm to –40 dBm, the FieldFox assumes that you are looking at low-level signals. The RF Attenuation value is automatically lowered in 5 dB steps to allow low-level signals to be viewed.
Page 276: Spectrum Selection
RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings —If the signal level DOES increase, then the receiver was compressed. Set the RF Attenuation value at the setting when further increases no longer result in an increase in the displayed power level. Spectrum Selection Density Spectrum and Spectrogram data is lost when you change modes, because the FieldFox optimizes the instrument’s resources during mode...
Page 277 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings Figure 10-3 Density Spectrum (Histogram) FM Signal with 1 MHz FM Deviation & 400 Hz FM Rate Keysight N9915-90020 User’s Guide...
Page 278 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings Figure 10-4 Density Spectrum (Histogram) with 2 Pulses, 100 MHz Span (Blue color indicates pulse that occurs less frequently) Figure 10-5 Spectrogram (100 MHz Span) Keysight N9915-90020 User’s Guide...
Page 279 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings Figure 10-6 Real-time Spectrum Keysight N9915-90020 User’s Guide...
Page 280: Setting The If Path
RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings Setting the IF Path How to check or set the IF Path. By default the IF Path is set to Auto. — Press BW 2. — Then IF Path The underlined setting is the current setting. Choose Auto, MHz, or 100 MHz (100 MHz requires Option B04 or B10 and either...
Page 281: Triggering
RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings Auto — Res BW is coupled to the frequency span. As the frequency span is narrowed, the Res BW is also narrowed providing increased ability to resolve signals. To change this setting from Man to Auto, press Res BW twice. —...
Page 282 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings Video — A sweep is initiated when the amplitude of an incoming signal crosses the settable trigger level. The comparison is done in the time “Trigger Slope”, domain, before conversion to frequency domain. Refer to “Trigger Delay”, “Trigger Level”...
Page 283 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings Trigger Settings — Then — Then Trig Delay — Enter a value using the numeric keypad, the arrows, or the rotary knob. (0 to 10 seconds) — Then select a multiplier key or press Enter. Learn more in “Multiplier Abbreviations”...
Page 284: Single / Continuous / Restart / Time Per Div
RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings — Enter 0 to set Auto Trigger OFF or press the Auto Trigger softkey a second time to turn OFF Auto Trigger. Trigger Hold-Off Used with External, Video, and RF Burst triggering, sets the hold-off time between triggers.
Page 285: Baseband
RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings How to set Single or Continuous — Press Sweep 3. — Then choose one of the following: — Continuous ——ON Causes the RTSA to make continuous sweeps. This is the typical setting for making measurements. Each Run / Hold +/- press causes the RTSA to toggle between continuous sweep and Hold.
Page 286 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings How to select Baseband 1. Press Freq/Dist > More 2. Then Baseband [Disabled] Press to Enabled (Default == Disabled). 3. To complete the Baseband enabling (activation) process: — The IF path must be Narrow 10 MHz. —...
Page 287: Points (Not User Settable)
RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings How to set Acq Time — Press Sweep 3. — Then choose: — Acq Time Acq Time affects the quantity of information being captured during a density or real-time spectrum measurement. ——Auto (default) the FieldFox chooses the optimum Acq Time based on the span setting (default is 20 ms, when span is set...
Page 288 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings Figure 10-8 Trace State Reset Softkeys A color-coded legend for displayed traces is visible in the left pane of the RTSA mode screen: W = Clear/Write; M = MaxHold; m = MinHold; A = Average; V = View How to display the Trace States —...
Page 289: Detection Method
RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings Detection Method In RTSA and SA Modes, the X-axis is comprised of data points, also known as “buckets”. Learn more in “Points (not user settable)” on page 287. Regardless of how many data points are across the X-axis, each data point must represent what has occurred over some frequency range and time interval.
Page 290: Average Count, Show Density, Blue, And Red Percentage Limits
RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings — RMS Average [A] Displays the Root Mean Squared (RMS) average power of all the measurements in each bucket. This is the preferred method when making power measurements. Repeat the detection setup process as needed for up to 4 traces and 4 detection methods.
Page 291: Average Count
RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings Average Count The Average Count setting is used mainly with the RMS Average Trace State “Trace Display States (RTSA)” on page 287. (But, also applies to described in the MaxHold or MinHold trace states.) In the RMS Average Trace State, the Average Count setting determines the number of sweeps to average.
Page 292: Limit Lines
RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings Figure 10-9 Display Line with Annotations How to create and move a Display Line — Press Limit __8 Display Line OFF ON — Then — Then enter a Y-axis value using the arrows or the rotary knob, then press Enter.
Page 293: Audio Beep At Marker Power
RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings Audio Beep at Marker Power When enabled, the Audio Beep feature emits a repetitive beep sound which varies in tone pitch and repetition rate to indicate the relative power level of the active marker.
Page 294: Spectrogram Display (Rtsa Option)
RTSA (Real-time Spectrum Analyzer) Mode—Option 350 Spectrogram Display Spectrogram Display Spectrogram display provides a visual history of the measured spectrum. This display type can be used to locate intermittent signals or to view signal levels and frequencies over time. This display can NOT be used with Channel Measurements. Spectrogram Display (RTSA Option) Spectrogram draws the most recent trace record at the bottom of the stack of previously-drawn trace records.
Page 295 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 Spectrogram Display — Displays the data trace below the spectrogram. Total trace records: 130. Bottom — Displays the data trace above the spectrogram. Total trace records: 130. Common Settings for Spectrogram Set Red and Blue Limits The colors displayed on the Waterfall and Spectrogram represent the various measured power levels: —...
Page 296: Record/Playback (Rtsa Option)
RTSA (Real-time Spectrum Analyzer) Mode—Option 350 Record/Playback (RTSA Option) Record/Playback (RTSA Option) Density Spectrum information is not recorded. Only the trace data is saved. See “How to Record a Session” on page 299 Record/Playback is only available in Density Spectrum and Real-time Spectrum measurements.
Page 297 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 Record/Playback (RTSA Option) You can determine the length of time over which recording can occur by setting the Record Interval (the time between recorded traces) and other “Recording Configuration” on page 301. settings. Learn more in To view and edit the maximum number of records Just after opening or initiating a session: 1.
Page 298 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 Record/Playback (RTSA Option) Table 10-1 Summary of RTSA State Settings Option Settings RTSA Acquisition Time Detector(s) External Gain Frequency Range Preamp On/Off Resolution BW RF Attenuation Trace State(s) Trigger Settings Other display settings, such as Scale and acquisition, can also be changed during recording but are not saved with the session file.
Page 299 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 Record/Playback (RTSA Option) In addition, you can insert a ‘User Tag’ at any time during a recording session to indicate an external event, such as when an antenna is moved. During playback, you can move quickly to any of these tags, or scroll through these tags.
Page 300 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 Record/Playback (RTSA Option) — Recall Session then Open and select a session. 3. Press Recorder Player 4. Press Record is displayed in the left of screen graticules. During recording, choose from the following: Pause Resume —...
Page 301 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 Record/Playback (RTSA Option) the rotary knob. Active when playback is paused. Learn more in About State and User Tags in “About State and User Tags” on page 298. — Playback Trace Activated automatically when Paused. Allows you to continue playback from a specific trace, or scroll through traces manually.
Page 302: Power Meter (Usb/Lan) Mode - Option
RTSA (Real-time Spectrum Analyzer) Mode—Option 350 Record/Playback (RTSA Option) — Segment Count Sets the number of traces to record, after which the recording will automatically pause. Press Pause/Resume or Record to capture another N traces, or Stop to end recording. Default is OFF, which is NO limit to the number of traces to be recorded.
Page 303 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 Record/Playback (RTSA Option) Playback Configuration By default, trace sweeps are played back as fast as the trace can be drawn on the screen. The following setting allows you to slow playback. In addition, you can manually scroll through individual traces using Playback Trace, or scroll through State and User Tags using Playback State/Tag.
Page 304 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 Record/Playback (RTSA Option) — Sort Arrange the listing of sessions Name, Date, or Size. Sort can also be used during a Recall Session, before choosing a session to open. — Delete After a confirmation prompt, removes the contents of the selected session from the list.
Page 305 Keysight Handheld Analyzers N99xxC User’s Guide 11 IQ Analyzer (IQA) – Option 351 IQA mode measures signals at the SA RF IN connector. IQA mode requires the FieldFox to have SA mode installed. IMPORTANT! 85571A-028 (28 GHz 5G Phased Array Antenna) accessories not suitable for use in wet locations.
Page 306 IQ Analyzer (IQA) – Option 351 Figure 11-1 IQ Analyzer (IQA) Display - LTE–TDD signal captured using the FieldFox’s I/Q analyzer Keysight N9915-90020 User’s Guide...
Page 307 IQ Analyzer (IQA) – Option 351 Figure 11-2 IQ Analyzer (IQA) Display - Window Shape Flat Top spur free 1 GHz center frequency (span=100 MHz) captured using the FieldFox’s I/Q analyzer (Requires Option B10) Keysight N9915-90020 User’s Guide...
Page 308 IQ Analyzer (IQA) – Option 351 In this Chapter “About I/Q Analyzer (IQA) Measurements” on page 310 “Setting the IF Path” on page 310 — “I/Q Analyzer (IQA) Mode Settings” on page 311 “How to Make Measurements Using the I/Q Analyzer Mode” on —...
Page 309 IQ Analyzer (IQA) – Option 351 Also “Why and When to Calibrate” on page 129 “All about Markers” on page 763 “All about Limit Lines” on page 778 “All about Trace Math” on page 794 Chapter 30, “Data Analysis Features.” Chapter 33, “File Management.”...
Page 310: About I/Q Analyzer (Iqa) Measurements
IQ Analyzer (IQA) – Option 351 About I/Q Analyzer (IQA) Measurements About I/Q Analyzer (IQA) Measurements The I/Q Analyzer Mode makes general purpose frequency domain and time domain measurements. The mode enables two types of I/Q measurements: — frequency domain and —...
Page 311: I/Q Analyzer (Iqa) Mode Settings
IQ Analyzer (IQA) – Option 351 I/Q Analyzer (IQA) Mode Settings I/Q Analyzer (IQA) Mode Settings When you initially select I/Q Analyzer, Real-Time SA, or some of the other spectrum settings (such as center frequency) a factory channel Equalization measurement is applied to the signal. During channel equalization measurement, the FieldFox displays a “Start Channel Equalization”.
Page 312 IQ Analyzer (IQA) – Option 351 I/Q Analyzer (IQA) Mode Settings — User Defined Selects a default user defined 4-quadrant display showing the following data: — Log magnitude of the spectrum of the I/Q data versus frequency — Log magnitude of the I/Q data (RF Envelope) versus time —...
Page 313 IQ Analyzer (IQA) – Option 351 I/Q Analyzer (IQA) Mode Settings How to Make Independent Source Settings and Pulse Generator Tracking For best results, when using the independent source feature, all alignment and the battery saver features should be turned off. Refer to “All Alignment and Align All Now”...
Page 314 IQ Analyzer (IQA) – Option 351 I/Q Analyzer (IQA) Mode Settings Pulse Gen softkey appears greyed out and cannot be selected despite having Option 357 on B/C model. Refer to Figure 11-3 on page 315. This occurs because the signal has not been configured with RF ON within the Pulse Generator mode.
Page 315 IQ Analyzer (IQA) – Option 351 I/Q Analyzer (IQA) Mode Settings Figure 11-3 Softkey Menu: Pulse Generator Not Configured (RF OFF) - Pulse Gen Greyed Figure 11-4 Softkey Menu: Pulse Generator Configured (RF ON) - Pulse Gen Enabled Figure 11-5 Track the Pulse Gen in IQA mode Examples - Modulated Signal Setup Using Pulse Generator Mode Keysight N9915-90020 User’s Guide...
Page 316 IQ Analyzer (IQA) – Option 351 I/Q Analyzer (IQA) Mode Settings How to Capture I/Q Data to a File I/Q data cannot be recalled or displayed in the FieldFox instrument. The data file is intended for use in a PC. There are two I/Q data file count capture modes, Single and Multiple.
Page 317 IQ Analyzer (IQA) – Option 351 I/Q Analyzer (IQA) Mode Settings ——Filename Opens a file manager Labeler menu that enables you to customize your data filenames. Refer to “File Management” on page 851 (default: IQDataFile). ——Back Returns to the previous softkey menu. Capture Settings —...
Page 318 IQ Analyzer (IQA) – Option 351 I/Q Analyzer (IQA) Mode Settings Multiple:- Start ——If the File Count is set to 200, and you press the softkey, the FieldFox saves your 200 I/Q data files and stops. The I/Q data files are saved into 200 files similar to: IQDataFile_yyyymmdd hh.mm.ss.ffff.csv.
Page 319 IQ Analyzer (IQA) – Option 351 I/Q Analyzer (IQA) Mode Settings How to modify the I/Q data measurement parameters The following sections assume you have already selected your I/Q data measurement type (i.e., Spectrum, Waveform (RF Envelope or I/Q Waveform), or User Defined).
Page 320 IQ Analyzer (IQA) – Option 351 I/Q Analyzer (IQA) Mode Settings FFT Window — Sets the FFT filtering window (spectrum analysis window) shape for the I/Q data. Default: Flat Top Then select one of the following: FFT Window Description Uniform No windowing Triangular Barlett windowing...
Page 321 IQ Analyzer (IQA) – Option 351 I/Q Analyzer (IQA) Mode Settings FFT Window Description K-B (120 dB) This is a Kaiser-Bessel window whose maximum side-lobe level is -120 dB. Gaussian (60 dB) This is a Gaussian window whose maximum side-lobe level is -60 dB.
Page 322 IQ Analyzer (IQA) – Option 351 I/Q Analyzer (IQA) Mode Settings Start Time (Waveform only) Sets the start time of the waveform — measurement (default: 0s, minimum: 0s, maximum: dynamic). In Waveform mode Setting the Start and stop time enables you to display a subset of the data on the display in order to speed up the refresh rate when the acquisition time is long.
Page 323 IQ Analyzer (IQA) – Option 351 I/Q Analyzer (IQA) Mode Settings pts = points s = seconds Trigger Settings — Opens the Trigger Settings softkey menu. Then: ——Trig Type Then select one of the following: Softkey Description Free Run (Default.) – Triggering is provided by the FieldFox internal circuitry.
Page 324 IQ Analyzer (IQA) – Option 351 I/Q Analyzer (IQA) Mode Settings Glitch Mask – Enables the glitch mask to reduce incorrect triggering due to fast changes/glitches in the signal level that can be mistaken to be the edge of the RF burst. This softkey is only active for RF Burst (default: 0 ms, minimum: 0s, maximum: 5 ms).
Page 325 IQ Analyzer (IQA) – Option 351 I/Q Analyzer (IQA) Mode Settings Adjusting the Trace Settings The Trace menu is used to modify the existing predefined view, or create a customized view. Window and Win State softkeys are used to modify layout of view, the Data softkey is used to specify the displayed data results for the current window.
Page 326 IQ Analyzer (IQA) – Option 351 I/Q Analyzer (IQA) Mode Settings — Trace 1 2 3 4 Pressing the Trace key enables you to select a different trace number. This softkey is active when Data is set to Spectrum or RF Envelope.
Page 327 IQ Analyzer (IQA) – Option 351 I/Q Analyzer (IQA) Mode Settings are looking at low-level signals. The RF Attenuation value is automatically lowered in 5 dB steps to allow low-level signals to be viewed. The RF Attenuation value is never automatically lowered below 5 dB. How to set Scale/Amptd —...
Page 328 IQ Analyzer (IQA) – Option 351 I/Q Analyzer (IQA) Mode Settings Ref Pos — Manually set the position of the reference line. Values must be between 0 (TOP line) and 10 (BOTTOM line). Default position is zero (top) (default: 0, minimum: 0, maximum: 10). —...
Page 329 IQ Analyzer (IQA) – Option 351 I/Q Analyzer (IQA) Mode Settings Preamplifier Control (Opt 235) When very low-level signals are analyzed, an internal preamplifier can be used to boost the signal level by approximately 18 to 22 dB. The gain of the preamp is NOT adjustable.
Page 330: Using Markers (Iqa)
IQ Analyzer (IQA) – Option 351 Using Markers (IQA) Using Markers (IQA) The markers described here are for I/Q Analyzer mode (exceptions are noted). For additional marker features, refer to “All about Markers” on page 763. IMPORTANT! When using I/Q markers, it is important to either be in Single acquisition mode or for Continuous acquisition mode, to set the measurement in advance on the FieldFox to Waveform or to Spectrum.
Page 331: Band/Interval Power Marker
IQ Analyzer (IQA) – Option 351 Using Markers (IQA) Noise Markers can be used like regular markers. A Noise Marker is distinguished from a regular marker by (1Hz) after the marker readout value. “All about Markers” on page 763. Learn more about regular markers in How to measure Noise with a marker —...
Page 332 IQ Analyzer (IQA) – Option 351 Using Markers (IQA) Band Span Marker (Spectrum Only) Sets the width of the span (Hz) for the selected marker. How to measure with the Band Span marker — Press Marker to create or select a Normal or Delta marker to use to measure Band/Interval Power.
Page 333 IQ Analyzer (IQA) – Option 351 Using Markers (IQA) Four windows are displayed (Spectrum, Waveform, Real, and Imaginary) 3. Using the arrows or the rotary knob, move so Window 2 Waveform is selected (green border). 4. Press Marker > Marker 1 >...
Page 334 IQ Analyzer (IQA) – Option 351 Using Markers (IQA) Continuous Peak Search Marker When the Continuous Peak Search marker is on, a peak search is automatically performed for the selected marker after each acquisition. For additional marker functionality, refer to “All about Markers”...
Page 335 IQ Analyzer (IQA) – Option 351 Alignments Alignments The IQA mode requires all three alignment types: amplitude, RF burst, and channel equalization. Refer to the SA chapter’s “Alignments” on page 217 information on all alignments. Trace Display States (IQA Mode) If you have Option 351 I/Q Analyzer option, you can directly save your data as MATLAB files (*.mat).
Page 336 IQ Analyzer (IQA) – Option 351 Trace Display States (IQA Mode) —MinHold Displays the minimum response of the input signal at each data point over multiple acquisitions. See also Average Count in “Adjusting the Measurement Setup Settings” on page 324. —Average Each data point is averaged over multiple acquisitions as set “Adjusting the...
Page 337: Other Features Available
IQ Analyzer (IQA) – Option 351 Other Features Available Other Features Available — External Gain - Refer to the SA chapter’s section, “External Gain” on page 164. — Limit Lines - For information on using Limit Lines, refer to “All about Limit Lines”...
Page 338 IQ Analyzer (IQA) – Option 351 Other Features Available Keysight N9915-90020 User’s Guide...
Page 339 Keysight Handheld Analyzers N99xxC User’s Guide 12 Electromagnetic Interference (EMI) Measurements – Option 361 Requirements — EMI mode measures signals at the SA RF Input Port 2 connector. — EMI mode requires the FieldFox to have SA mode (Option 233 on combination analyzers) installed.
Page 340 Electromagnetic Interference (EMI) Measurements – Option 361 In this Chapter The following outline of this chapter is separated into two main sections: — “EMI Measurements” — “Chapter Overview of EMI Measurements” EMI Measurements “Using EMI Measurements (Option 361)” on page 343 “EMI Measurements Mode Settings”...
Page 341 Electromagnetic Interference (EMI) Measurements – Option 361 Chapter Overview of EMI Measurements “Using EMI Measurements (Option 361)” on page 315 – see “EMI Measurements” on page 340 “EMI Measurements Mode Settings” on page 316 – see “EMI Measurements” on page 340 “How to Select EMI Measurements Mode”...
Page 342 Electromagnetic Interference (EMI) Measurements – Option 361 “EMI Measurement Mode Setup Procedure” on page 335 – see “EMI — Measurements” on page 340 “Glossary (EMI)” on page 337 – see “EMI Measurements” on page 340 Other Features Available – Refer to Chapter 9, “SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers)”...
Page 343 Electromagnetic Interference (EMI) Measurements – Option 361 Using EMI Measurements (Option 361) Using EMI Measurements (Option 361) EMI enables you to do the following: Measure and display emission signals to verify your device/instrument’s pre-compliance performance Electromagnetic Interference Features (EMI) – (Option 361) —...
Page 344 Electromagnetic Interference (EMI) Measurements – Option 361 EMI Measurements Mode Settings EMI Measurements Mode Settings This section contains content unique to EMI measurements mode and some features that are similar to SA mode settings. Unique Option 361 EMI measurements content can be found in this chapter. But, when EMI/SA mode’s shared feature content is referenced, you are referred to Chapter 9, “SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers).”...
Page 345 Electromagnetic Interference (EMI) Measurements – Option 361 EMI Measurements Mode Settings How to set Frequency Range and Frequency Context For EMI mode, you are able to change the center, frequency span, start, and “CISPR stop frequencies or select a specific CISPR band. See also, (International Special Committee on Radio Interference) Control”...
Page 346 Electromagnetic Interference (EMI) Measurements – Option 361 EMI Measurements Mode Settings ——Log Freq AxisX enables/disables the log frequency X-axis. Disabling the log frequency X-axis, enables the linear frequency X-axis (Default = ON). ——CF Step then type a step size value using the numeric keypad, then select a frequency unit terminator key (Default = Auto).
Page 347 Electromagnetic Interference (EMI) Measurements – Option 361 EMI Measurements Mode Settings Attenuation Control Learn more, refer to “Attenuation Control” on page 165. CISPR (International Special Committee on Radio Interference) Control This section describes the FieldFox EMI measurement mode’s instrument controls for evaluating pre-compliance EMI of the equipment under test. After EMI mode is selected or after a Mode Preset, the Measure menu is displayed.
Page 348 Electromagnetic Interference (EMI) Measurements – Option 361 EMI Measurements Mode Settings When selected, CISPR Band and Zoom Scan measurements use one of the 5 CISPR band frequency ranges to set the frequency range (Start and Stop) on the FieldFox. CISPR Zoom Scan selects a limited fix span (<entire band range).
Page 349 Electromagnetic Interference (EMI) Measurements – Option 361 EMI Measurements Mode Settings probability (i.e., a fraction from 0 to 1.0) on the Y axis, vs. Power on the X axis. Markers adapt correspondingly. Histogram and CCDF become the Input choices per trace, replacing Detector on the Trace menu.
Page 350 Electromagnetic Interference (EMI) Measurements – Option 361 EMI Measurements Mode Settings Figure 12-2 CISPR Band C Zoom Example 1 – Response to Pulse Figure 12-3 CISPR Band C Example 2 – Response to CW Signal Keysight N9915-90020 User’s Guide...
Page 351 Electromagnetic Interference (EMI) Measurements – Option 361 EMI Measurements Mode Settings Figure 12-4 APD Statistics Example 1 – Pulse 5µS/1mS Figure 12-5 APD Statistics Example 2 – CW Keysight N9915-90020 User’s Guide...
Page 352: Resolution Bandwidth (Res Bw)
Electromagnetic Interference (EMI) Measurements – Option 361 EMI Measurements Mode Settings Preamplifier Control (Opt 235) Learn more, see Chapter 9 refer to “Preamplifier Control (Opt 235)” on page 166. Resolution Bandwidth (Res BW) EMI mode has a different resolution bandwidth type for each type of EMI measurement: —...
Page 353 Electromagnetic Interference (EMI) Measurements – Option 361 EMI Measurements Mode Settings c. The 75001 point limit is put in place, to keep the mode from trying to build traces that are any bigger than neces- sary. Basically, enough to cover CISPR Band E (1 GHz to 18 GHz) with its 1 MHz bandwidth, plus a little extra mar- gin.
Page 354 Electromagnetic Interference (EMI) Measurements – Option 361 EMI Measurements Mode Settings Dwell /Point (Active when the CISPR Measurement type == CISPR — Band Scan or CISPR Zoom Scan.) Specifies a settling time (in seconds) between sweeps. — SwpAcquisition – (Active only for Fast SA Scan) Specifies a the number of sweep acquisitions.
Page 355 Electromagnetic Interference (EMI) Measurements – Option 361 EMI Measurements Mode Settings hardkeys or re-assigned to measure a different value on the trace by using the Trace 6 hardkey (e.g., you can re-assign trace 1 to measure Quasi-peak or EMI averaging). These detector choices are inactive when the EMI measurement type is set to, Fast SA Scan or APD Statistics.
Page 356 Electromagnetic Interference (EMI) Measurements – Option 361 EMI Measurements Mode Settings Trace Averaging Within EMI mode, the detectors provide the critical necessary averaging (i.e., EMI Average and Quasi Peak), but similar to SA mode, if needed, you can perform Trace Averaging. Refer to “Average Type”...
Page 357 Electromagnetic Interference (EMI) Measurements – Option 361 EMI Measurements Mode Settings data point displays the minimum value encountered during its bucket. If the signal is NOT classified as noise (does NOT rise and fall) then Normal is equivalent to Positive Peak. —...
Page 358 Electromagnetic Interference (EMI) Measurements – Option 361 EMI Measurements Mode Settings Histogram — – Displays the power levels detected over the APD Dwell Time. Keysight N9915-90020 User’s Guide...
Page 359 Electromagnetic Interference (EMI) Measurements – Option 361 About Electromagnetic Interference (EMI) Measurements About Electromagnetic Interference (EMI) Measurements EMI mode enables you to make the following types measurements: — Radiated – wireless EMI signals — Conducted – emissions from wires or other conducted paths. Some measurement parameters are auto-coupled and are not user-settable.
Page 360 Electromagnetic Interference (EMI) Measurements – Option 361 About Electromagnetic Interference (EMI) Measurements EMI has the following features: EMI Measurement Results: — Amplitude Probability Distribution Statistics (APD) — Histogram — CCDF traces displayed — Center frequency (active with APD Statistics) — Selectable CISPR Bands (A, B, C, D, or E) —...
Page 361 Electromagnetic Interference (EMI) Measurements – Option 361 How to Set Up Electromagnetic Interference (EMI) Mode Settings How to Set Up Electromagnetic Interference (EMI) Mode Settings IMPORTANT! See also, “Alignments” on page 217, in SA mode, Chapter 9, “SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers).” This section reviews the steps in setting up an example EMI measurement.
Page 362 Electromagnetic Interference (EMI) Measurements – Option 361 Glossary (EMI) 6. Setting the EMI resolution bandwidth state for the displayed trace: For this example, press EMI Res BW Manual (default = Auto). 120 kHz is > displayed, but you can set other fixed resolution bandwidths (i.e., 200 Hz, 9 kHz, and 1 MHz).
Page 363 Keysight Handheld Analyzers N99xxC User’s Guide 13 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 Some examples in this chapter include the electromagnetic field (EMF) mode. EMF requires Chapter 9, “SA (Spectrum Analyzer) Mode (Option Option 358.
Page 364 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 In this Chapter “Using OTA (Options 370 – LTE FDD, 372 – TDD, 377 – 5G TF, and Option 378 –...
Page 365 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 Also “Why and When to Calibrate” on page 129 Chapter 31, “System Settings.” (Changing display colors) Chapter 33, “File Management.”...
Page 366 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 Using OTA (Options 370 – LTE FDD, 372 – TDD, 377 – 5G TF, and Option 378 – 5G NR / 5G NR Conducted) Using OTA (Options 370 –...
Page 367 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 Using OTA (Options 370 – LTE FDD, 372 – TDD, 377 – 5G TF, and Option 378 – 5G NR / 5G NR Conducted) —...
Page 368 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 About Over–the–Air (OTA) Measurements About Over–the–Air (OTA) Measurements OTA mode supports these standards: — LTE FDD —...
Page 369 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 About Over–the–Air (OTA) Measurements — Table – Cell scan numeric results, including PCI, RSRP, RSRQ, RSSI, PSS, SSS, SINR and Freq Err, for up to 5 CCs or 6 cells —...
Page 370 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 About Over–the–Air (OTA) Measurements Figure 13-2 LTE FDD Bar Chart – CC Example Figure 13-3 LTE FDD Bar Chart –...
Page 371 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 About Over–the–Air (OTA) Measurements Figure 13-4 LTE FDD Bar Chart – Level Example Figure 13-5 Example of the 5G TF with Four Multiple Display Options Keysight N9915-90020 User’s Guide...
Page 372 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 About Over–the–Air (OTA) Measurements Figure 13-6 Spectral Emission Mask Example Figure 13-7 SSB Index Example Keysight N9915-90020 User’s Guide...
Page 373 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 About Over–the–Air (OTA) Measurements Figure 13-8 5G NR Center Frequency and SSB Offset, Before Multiple Cell IDs Example Figure 13-9 5G NR Center Frequency and SSB Offset and SSB Index and PCI Single With Multiple Cell IDs Example...
Page 374 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 About Over–the–Air (OTA) Measurements Figure 13-10 5G NR EVM Constellation Example – Measure Data set to All Figure 13-11 5G NR EVM Constellation Example –...
Page 375 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 About Over–the–Air (OTA) Measurements Figure 13-12 5G NR EVM Frame Summary Example Figure 13-13 5G NR EVM – Constellation and Frame Summary Example Keysight N9915-90020 User’s Guide...
Page 376 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 About Over–the–Air (OTA) Measurements 5G TF Features (Option 377) IMPORTANT! LTE FDD, LTE TDD, and 5G TF only demodulate PSS and SSS signals using the FieldFox’s demodulation path.
Page 377 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 About Over–the–Air (OTA) Measurements Figure 13-14 Example of 5G TF Single Carrier and Single Cell 5G NR Features (Option 378) IMPORTANT! 5G NR only demodulates PSS, SSS and PBCH DMRS signals using the FieldFox's 100 MHz demodulation path.
Page 378 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 About Over–the–Air (OTA) Measurements — RSSI (Received Signal Strength Indicator) (dBm) — SINR (Signal to Interference & Noise Ratio) (dB) —...
Page 379 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 About Over–the–Air (OTA) Measurements Figure 13-15 Example of 5G NR Single Carrier and Single Cell Figure 13-16 Example of 5G NR Multi-Beam –...
Page 380 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 About Over–the–Air (OTA) Measurements 5G NR EVM Conducted Features (P/O: Option 378) IMPORTANT! 5G NR only demodulates PSS, SSS, PBCH and PBCH DMRS signals using the FieldFox's 100 MHz demodulation path.
Page 381 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings How to Set Up Over–the–Air (OTA) Mode Settings IMPORTANT! See also, “Alignments”...
Page 382 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings — And, refer to Figure 13-16 called, “Example of 5G NR Multi-Beam – Displaying Multiple Beams From Cell Site 378,”...
Page 383 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings — Then CC CC0 (Default == CC0) – Selects the CC number to be displayed (LTE FDD/LTE TDD choices: CC0-CC4, 5G NR Choices: CC0-CC7).
Page 384 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings — Then Channel Raster (Option 378 5G NR /5G NR EVM Only) opens the Channel Raster softkey menu.
Page 385 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings — Then (select component carriers) — (Not applicable for Spectrum. When All is specified, for Spectrum, the FieldFox Defaults == CC0) or —...
Page 386 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings b. 5G NR Only: Press More — Then SSB Index All Single when the SSB value is set, the SSB Index mode is automatically set to single.
Page 387 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings — Press Auto-Range Executes an auto-range, which determines the optimal RF attenuation and preamp settings for the current input signal.
Page 388 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings — Ref Level Manually set the value of the reference line. Enter a negative value by pressing Run/Hold (+/-) either before or after typing a value.
Page 389 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings — Then FreqError Th > 5 kHz (enables data with larger frequency error to be displayed) Extend Freq Lock...
Page 390 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings — Then Lmax Sets the current half frame SS/PBCH blocks indexing in ascending order in time 0 to (L –...
Page 391 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings SCS Common The signal sub-Carrier Spacing Common setting is coupled to the Bandwidth setting.
Page 392 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings — Then Advanced Opens an Advanced softkey menu. ——Then Phase Comp- Enables/disables phase...
Page 393 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings — Then Back b. Then press Record Save/Recall To set file settings choose Learn more about file settings, refer to Chapter 33, “File Management.”...
Page 394 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings — Stop Immediately stops recording and a “Save the Log File” menu opens to rename and save your data log file.
Page 395 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings Figure 13-17 Single cell selected, but other cells displayed when CC0 to CCn has been enabled.
Page 396 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings Figure 13-19 Example of the 5G TF Scan Results Table (Two cc and one cell) Keysight N9915-90020 User’s Guide...
Page 397 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings Additional LTE FDD Examples (LTE TDD is Similar) Figure 13-20 Example of LTE FDD with Single Carrier, Multiple Cell Sites, KPIs Keysight N9915-90020 User’s Guide...
Page 398 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings Figure 13-21 Example of LTE FDD with Multiple Carriers, Single Cell Site, and KPI’s Keysight N9915-90020 User’s Guide...
Page 399 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings Optional: Using RTSA to verify the signal quality (Requires Option 350 and Preamp Option 235) —...
Page 400 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings How to Define a Cell or Cell(s) and Use OTA LTE FDD, LTE TDD, 5G TF, 5G NR, and 5G NR EVM Conducted have only one predefined view (Table).
Page 401 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings 2. Selecting and OTA mode: Press Measure >...
Page 402 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings then use Sync Raster, to open a softkey menu: Then Sync ARFCN,...
Page 403 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings Repeat process as needed for additional Windows, Data, and CC settings. IMPORTANT! When you select multiple CCs (e.g., CC0, CC1, etcetera) and record data, you may actually see other cell signals that do not have sufficient power to be displayed, but are still detectable.
Page 404 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings Then SSB Offset Detection OFF ON Enables/disables the SSB Offset Detection (Default == OFF).
Page 405 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings Then LTE Duplex Mode FDD TDD Selects the type of LTE signal to be used in the LTE Coexistence measurement (LTE FDD or TDD).
Page 406 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings Then Phase Comp OFF ON Enables/disables the phase compensation to compensate for phase differences between symbols during the upconversion or downconversion.
Page 407 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings Figure 13-24 Table and Bar Chart Display Types – LTE FDD – (LTE TDD is similar) Figure 13-25 Spectrum and Strip Chart Display Type –...
Page 408 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings Figure 13-26 Spectrum and Table Type (SSB Offset Detection Softkeys) – 5G NR Freq/Dist >...
Page 409 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings Figure 13-27 Outdoor Display Colors Figure 13-28 Indoor Display Colors Step 4: Enable Data Logging and Playback the Results Spectrum and Strip Chart information is not recorded.
Page 410 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings Data Logging creates a record of your data with a timestamp and GPS stamp (refer to “GNSS (GPS+) and GPS”...
Page 411 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings ——Data Log-Play files are save-recalled to: "[CurrentDevice]:\RecordPlayback\ OTA\"...
Page 412 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings — Data Selection Opens a softkey menu to set the active data channel, sort type, and sort order.
Page 413 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings — Optional (Bar Chart and Spectrum only): To adjust the following, use the RPG (fine adjust) or the arrow keys (coarse adjust) to change the color bar.
Page 414 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings Procedure: 1. Press When done press Stop. Immediately stops recording and a “Save the Log File”...
Page 415 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up Over–the–Air (OTA) Mode Settings — Click on each color coded balloon to see the table of measurement results for that location.
Page 416 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up EMF Mode Settings (Requires EMF (Option 358) and 5G NR (Option 378)) How to Set Up EMF Mode Settings (Requires EMF (Option 358) and 5G NR (Option 378))
Page 417 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up EMF Mode Settings (Requires EMF (Option 358) and 5G NR (Option 378)) —...
Page 418 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up EMF Mode Settings (Requires EMF (Option 358) and 5G NR (Option 378)) Figure 13-30 Example of EMF with Triaxial Antenna...
Page 419 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up EMF Mode Settings (Requires EMF (Option 358) and 5G NR (Option 378)) EMF Setup Procedure When the EMF antenna correction factors are imported, EMF (Option 358)
Page 420 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up EMF Mode Settings (Requires EMF (Option 358) and 5G NR (Option 378)) Then press Import Antenna...
Page 421 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up EMF Mode Settings (Requires EMF (Option 358) and 5G NR (Option 378)) —...
Page 422 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up EMF Mode Settings (Requires EMF (Option 358) and 5G NR (Option 378)) iv.
Page 423 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Set Up EMF Mode Settings (Requires EMF (Option 358) and 5G NR (Option 378)) Figure 13-33 Using SA Mode (Example) to Verify the Triaxial Values –...
Page 424 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Use Data Logging (OTA Options 370, 372, 377, and 378) How to Use Data Logging (OTA Options 370, 372, 377, and 378) Spectrum and Strip Chart information is not recorded.
Page 425 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Use Data Logging (OTA Options 370, 372, 377, and 378) GPS R When GPS is enabled, is indicated at the bottom of the FieldFox display.
Page 426 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Use Data Logging (OTA Options 370, 372, 377, and 378) To change Data Logging Configuration settings: 1.
Page 427 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 How to Use Data Logging (OTA Options 370, 372, 377, and 378) — Then, Recall Log File —...
Page 428: Other Features Available
Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 Other Features Available Back — — PlayTrace ID Auto resume playing by selecting a trace number to playback between 1 and the record length (MAXimum == 2000 (multiple CC) and 1000 (single CC)).
Page 429 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 About the Auto-Range Feature About the Auto-Range Feature Executing an auto-range, which determines the optimal RF attenuation and preamp settings for the current input signal.
Page 430 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 About the Auto-Range Feature Figure 13-35 OTA 5G NR Signal Before Auto-Range – Spectrum Figure 13-36 OTA 5G NR Before Auto-Range –...
Page 431 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 About the Auto-Range Feature Figure 13-37 OTA 5G NR Ongoing Auto-Range – Performing Auto-Range Figure 13-38 OTA 5G NR After Auto-Range, but RF Atten or Preamp Settings Changed Keysight N9915-90020 User’s Guide...
Page 432 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 About the Auto-Range Feature Figure 13-39 OTA 5G NR After Auto-Range and Clean Sweep Keysight N9915-90020 User’s Guide...
Page 433: Troubleshooting
Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 Troubleshooting Troubleshooting If your OTA setup is not behaving as expected: — Verify setup is correct by referring to “How to Set Up Over–the–Air (OTA) Mode Settings”...
Page 434 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 Glossary (OTA) Glossary (OTA) This section provides a description of some of the terms used in the FieldFox’s OTA mode.
Page 435 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 Glossary (OTA) Table 13-1 OTA Abbreviations and Descriptions Abbreviation Description Cell ID (PCI Physical cell ID – The Primary Sync Signal and Secondary Sync Signal largely define the PCI. PCI is also (C-S-G)) referred to sometimes as Cell ID.
Page 436 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 Glossary (OTA) Table 13-1 OTA Abbreviations and Descriptions Abbreviation Description 5G NR EMF Conducted Center The specified 5G NR carrier center frequency.
Page 437 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 Glossary (OTA) Table 13-1 OTA Abbreviations and Descriptions Abbreviation Description SS-RSRQ (dB) Synchronization signal reference signal received quality (SS -RSRQ) is defined as the ratio of N x SS-RSRP/NR carrier RSSI.
Page 438 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5G TF Option 377, 5G NR / 5G NR EVM Conducted Option 378 Glossary (OTA) Keysight N9915-90020 User’s Guide...
Page 439 Keysight Handheld Analyzers N99xxC User’s Guide 14 USB Antennas – (Full Capability Requires Option 358, and either SA mode (Option 233 Mixed Analyzers) or OTA—5G NR / 5G NR EVM Conducted Option 378) Triaxial USB antennas (also, referred to as EMF antennas) can be used without EMF Option 358, but with limited capability and doing so is not recommended or supported by Keysight.
Page 440 USB Antennas – (Full Capability Requires EMF Option 358, and either SA mode (Option 233 Mixed Analyzers) or OTA—5G NR / 5G NR EVM Conducted Option 378) By integrating over-the-air (OTA) measurements with cable and antenna test (CAT), full 2-port vector network analysis, spectrum analysis, and real-time spectrum analysis (RTSA), the FieldFox can be used for base station setup and verification.
Page 441 USB Antennas – (Full Capability Requires EMF Option 358, and either SA mode (Option 233 Mixed Analyzers) or OTA—5G NR / 5G NR EVM Conducted Option 378) In this Chapter “Using USB Antennas (Also, Known as EMF Antennas)” on page 442 “About USB Antenna (Also, Known as EMF Antenna) Measurements”...
Page 442: Using Usb Antennas (Also, Known As Emf Antennas)
USB Antennas – (Full Capability Requires EMF Option 358, and either SA mode (Option 233 Mixed Analyzers) or OTA—5G NR / 5G NR EVM Conducted Option 378) Using USB Antennas (Also, Known as EMF Antennas) Using USB Antennas (Also, Known as EMF Antennas) Triaxial EMF antennas can be used without EMF Option 358, but with limited capability and doing so is not recommended by Keysight.
Page 443: Emf Antenna Features
USB Antennas – (Full Capability Requires EMF Option 358, and either SA mode (Option 233 Mixed Analyzers) or OTA—5G NR / 5G NR EVM Conducted Option 378) About USB Antenna (Also, Known as EMF Antenna) Measurements About USB Antenna (Also, Known as EMF Antenna) Measurements EMF antenna feature supports these standards: —...
Page 444 USB Antennas – (Full Capability Requires EMF Option 358, and either SA mode (Option 233 Mixed Analyzers) or OTA—5G NR / 5G NR EVM Conducted Option 378) About USB Antenna (Also, Known as EMF Antenna) Measurements Figure 14-3 Example Verifying the Triaxial Values – Axis Y is Displayed Keysight N9915-90015 User’s Guide...
Page 445: How To Set Up A Usb Antenna (Also, Known As Emf Antenna)
USB Antennas – (Full Capability Requires EMF Option 358, and either SA mode (Option 233 Mixed Analyzers) or OTA—5G NR / 5G NR EVM Conducted Option 378) How to Set Up a USB Antenna (Also, Known as EMF Antenna) How to Set Up a USB Antenna (Also, Known as EMF Antenna) IMPORTANT! See also, “Alignments”...
Page 446 USB Antennas – (Full Capability Requires EMF Option 358, and either SA mode (Option 233 Mixed Analyzers) or OTA—5G NR / 5G NR EVM Conducted Option 378) How to Set Up a USB Antenna (Also, Known as EMF Antenna) Then press Import Antenna –...
Page 447 USB Antennas – (Full Capability Requires EMF Option 358, and either SA mode (Option 233 Mixed Analyzers) or OTA—5G NR / 5G NR EVM Conducted Option 378) How to Set Up a USB Antenna (Also, Known as EMF Antenna) — Optional: Press Antenna Axis with Auto (default) selected the FieldFox determines the X/Y/Z settings for the current...
Page 448 USB Antennas – (Full Capability Requires EMF Option 358, and either SA mode (Option 233 Mixed Analyzers) or OTA—5G NR / 5G NR EVM Conducted Option 378) How to Set Up a USB Antenna (Also, Known as EMF Antenna) Figure 14-5 Example Summing of Triaxial Values Figure 14-6 Example Verifying EMF...
Page 449 USB Antennas – (Full Capability Requires EMF Option 358, and either SA mode (Option 233 Mixed Analyzers) or OTA—5G NR / 5G NR EVM Conducted Option 378) How to Set Up a USB Antenna (Also, Known as EMF Antenna) Editing Antenna Correction Factors and Adding New Antenna Factors Keysight does not recommend editing a EMF antenna’s correction factors.
Page 450: Other Features Available
USB Antennas – (Full Capability Requires EMF Option 358, and either SA mode (Option 233 Mixed Analyzers) or OTA—5G NR / 5G NR EVM Conducted Option 378) Other Features Available Other Features Available — Alignments - For information on using alignments, refer to the SA chapter’s section, “Alignments”...
Page 451: Troubleshooting
USB Antennas – (Full Capability Requires EMF Option 358, and either SA mode (Option 233 Mixed Analyzers) or OTA—5G NR / 5G NR EVM Conducted Option 378) Troubleshooting Troubleshooting If your EMF antenna setup is not behaving as expected: — Verify setup is correct by referring to “How to Set Up a USB Antenna (Also, Known as EMF Antenna)”...
Page 452 USB Antennas – (Full Capability Requires EMF Option 358, and either SA mode (Option 233 Mixed Analyzers) or OTA—5G NR / 5G NR EVM Conducted Option 378) Troubleshooting Keysight N9915-90015 User’s Guide...
Page 453 Keysight Handheld Analyzers N99xxC User’s Guide 15 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) IMPORTANT! B Model FieldFoxes measurements require an OML head . Refer to https://www.omlinc.com/. a. Requires external mixer to down convert millimeter wave frequency to intermediate frequency (IF). Recommend OML Inc.
Page 454 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) — Over-the-Air (OTA) 5G TF (Option 377) — Over-the-Air (OTA) 5G NR (Option 378) Using a direct wired LAN connection with access to a network and the internet, FieldFox will automatically access OSM once location coordinates (latitude and longitude) and zoom levels are entered the Map Explorer menu.
Page 455 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) “How to Set Up Mapping Settings” on page 468 “How to Set Up Mapping When the FieldFox Is On The LAN” on —...
Page 456 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) Option 352 enables you to do the following: Measure and display indoor and outdoor mapping Two Mapping Types: — Indoor Maps — Outdoor Maps (Requires Option 307) Color Coded Display Types: —...
Page 457 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) Figure 15-2 Maps With Current Position Marker Displayed - (OpenStreetMaps) Figure 15-3 Using Mapping (Option 352) - Satellite View for Indoor Mapping Keysight N9915-90020 User’s Guide...
Page 458 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Install Node.js and Running the FieldFox Mapping Software How to Install Node.js and Running the FieldFox Mapping Software IMPORTANT! If your FieldFox is connected directly to the LAN, you can skip the section on downloading Node.js and go to “How to Set Up Mapping When the FieldFox Is On The LAN”...
Page 459 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Install Node.js and Running the FieldFox Mapping Software Figure 15-4 Downloading the Node.js Installer to a PC Figure 15-5 Default Download Path for Node.js Installer to a PC IMPORTANT! Do not change path.
Page 460 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) Downloading and Using the FieldFox Map Support Tool Downloading and Using the FieldFox Map Support Tool 1. Download the FieldFox Mapping software (“FFMapSupportInstall.msi”) to a PC’s Downloads folder.
Page 461 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) Downloading and Using the FieldFox Map Support Tool Figure 15-7 FieldFox Mapping Opens in HTML5 Compatible Browser (Overview) 4. If the FieldFox is connected directly to the LAN, begin here: Select Draw An Area to map and download the selected area: For this step and sub-steps, refer to Figure 15-8 on page...
Page 462 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) Downloading and Using the FieldFox Map Support Tool — Select all Zoom levels of the map you wish to save. Hint: — To select Zoom levels, click the zoom boxes. —...
Page 463 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) Downloading and Using the FieldFox Map Support Tool Figure 15-8 FieldFox Mapping Opens in HTML5 Compatible Browser (Zoom) 5. Saving your *.zip file to a storage device and importing your *.zip to the FieldFox: For FTP, refer to Refer to “Move (Copy) Files”...
Page 464 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) Downloading and Using the FieldFox Map Support Tool b. Open the PC’s Downloads folder and find your *.zip file. (e.g., MapsZIP_Example_1). Refer to Figure 15-9 on page 464.
Page 465 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) Importing a .zip File to the FieldFox Importing a .zip File to the FieldFox For FTP, refer to Refer to “Move (Copy) Files” on page 856 and to the :MMEM SCPI commands in the FieldFox Programming Help https://rfmw.em.keysight.com/wireless/helpfiles/FFProgrammingHelpWe...
Page 466 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) Importing a .zip File to the FieldFox Figure 15-10 Example of a Maps *.zip Being Recalled From a USB Storage Device Keysight N9915-90020 User’s Guide...
Page 467 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) Importing a .zip File to the FieldFox Figure 15-11 Example of Maps Folder Containing Imported Maps *.zip Files to the FieldFox’s InternalSD\UserData\Maps Folder Keysight N9915-90020 User’s Guide...
Page 468 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Set Up Mapping Settings How to Set Up Mapping Settings IMPORTANT! See also, “Alignments” on page 217, in SA mode. This section reviews the steps in setting up an Option 352 Mapping measurement.
Page 469 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Set Up Mapping Settings How to Set Up Mapping When the FieldFox Is On The LAN If your FieldFox is connected directly to the LAN, you can view your maps by using OpenStreetMaps directly (i.e., no need to use the FieldFox Map Support Tool to download the maps as a *.zip file).
Page 470 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Set Up Mapping Settings 5. Repeat step for Longitude. Figure 15-14 Example of Current Area Center Latitude and Longitude Values Keysight N9915-90020 User’s Guide...
Page 471 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Set Up Mapping Settings Option 352 Indoor Maps Setup Procedure IMPORTANT! 85571A-028 (28 GHz 5G Phased Array Antenna) accessories not suitable for use in wet locations.
Page 472 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Set Up Mapping Settings 3. If you are using an antenna with your measurements, then Connect your equipment similar to Figure 14-1 on page 443 Chapter 14, “5G Rapid Prototype Phased Array Antenna –...
Page 473 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Set Up Mapping Settings — Press Record Indoor Data – opens a menu of previously stored PNG files to select to record a new data log. a.
Page 474 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Set Up Mapping Settings Figure 15-15 Example of an Indoor Building Map with Single Icon and Bore Sight Pointer Keysight N9915-90020 User’s Guide...
Page 475 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Set Up Mapping Settings Option 352 Outdoor Maps Setup Procedure Outdoor mapping requires GPS Option 307. IMPORTANT! 85571A-028 (28 GHz 5G Phased Array Antenna) accessories not suitable for use in wet locations.
Page 476 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Set Up Mapping Settings — Set up the Record Settings (Outdoor Mapping only): Press Trace 6 > More (OTA mode) > Data Logging >...
Page 477 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Set Up Mapping Settings Figure 15-16 Example of England Displayed Text Import ZIP file using FieldFox Map Support Tool with Import Maps (ZIP) e.
Page 478 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Set Up Mapping Settings — For setting up a USB antenna, refer to Chapter 14, “USB Antennas – (Full Capability Requires EMF Option 358, and either SA mode (Option 233 Mixed Analyzers) or OTA—5G NR / 5G NR EVM Conducted Option 378).”...
Page 479 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Set Up Mapping Settings Figure 15-17 Using Maps Explorer to Set the Red and Blue Power Limits c. Optional: Then Preferences Discrete Colors Discrete Colors...
Page 480 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Set Up Mapping Settings ——List files (*.csv and *.kml) are save-recalled to: "[CurrentDevice]:\RecordPlayback\CS\" ——Record-Play files are save-recalled to: "[CurrentDevice]:\RecordPlayback\CS\" — System –...
Page 481 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Set Up Mapping Settings Figure 15-20 FieldFox Display with View Map ON and OFF Displayed Import and Play back KML Files into 3rd Party Software (Example: Google Earth with Animation Tool) Features Use the Playback Slider to replay measurement results.
Page 482 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Set Up Mapping Settings — Open the FieldFox *.KML file in Google Earth. The time slider appears in upper left of the map. —...
Page 483 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Set Up Mapping Settings Setting up Data Logging There are two types of data logging: “Enabling Outdoor Map Logging” on page 483 “Enabling and Setting Up Indoor Map Logging”...
Page 484 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Set Up Mapping Settings This softkey is only available in Channel Scanner and Phased Array Antenna modes (i.e., The Cursor Position softkey is not available for OTA mode).
Page 485 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Set Up Mapping Settings — To change your file settings or measurement interval. Learn more, refer to “To change Data Logging Configuration settings:”...
Page 486 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Set Up Mapping Settings Sets the type of icon that is used to display a Icons map’s data points. Flag Point Line ——...
Page 487 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Set Up Mapping Settings A KDAT file is the file FieldFox uses to recall an indoor mapping/data logging session (“Recall Indoor Log File”). It's an archive file that contains information about the original image file, the location of the recorded data on the image and the actual recorded data.
Page 488 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Set Up Mapping Settings To enable the Record Data softkey, move the cursor using the arrow hardkeys or the RPG to highlight the Location: Value cell in the table.
Page 489 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Set Up Mapping Settings Data Selection Opens a softkey menu to set the active data channel, sort type, and sort order. Channel 1 ——...
Page 490 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Set Up Mapping Settings — File Folder Default System (Default = Default) or — File Type (Default = CSV) KML or DREC (DREC applies to Option 360 only) —...
Page 491 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Use Data Logging (Option 352) How to Use Data Logging (Option 352) Data Log-Play files are saved to: If File Folder is set to Default then Record-Play files are save-recalled —...
Page 492 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Use Data Logging (Option 352) — Press Scale /Amptd > More Unit > then choose: — dBmV, dBuV, W, V, A, dBmA, or dbuA (Default Units: dBm) Figure 15-22 on page...
Page 493 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Use Data Logging (Option 352) How to Add Directional Finding (DF) Bearing IMPORTANT! You must be in Channel Scanner Mode to use this feature. DF Bearing adds the ability add points to the map at your current location indicating a signal emitter's strength and direction relative to your position.
Page 494 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Use Data Logging (Option 352) Line Length — Press – Enters a value for the line’s length. Adjusts the length of the line of bearing to extend it far enough to allow other points to cross, indicating a possible emitter location.
Page 495 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Use Data Logging (Option 352) Figure 15-23 Directional Finding (DF) Bearing – Outdoor Map Data Logging Example Keysight N9915-90020 User’s Guide...
Page 496 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Use Data Logging (Option 352) Figure 15-24 Directional Finding (DF) Bearing – Indoor Map Data Logging Example How to Record a Data Log (Outdoor Logging Only) For Indoor Logging, refer to “Enabling and Setting Up Indoor Map Logging”...
Page 497 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Use Data Logging (Option 352) is displayed in the left of screen graticules. During recording, choose from the following: Pause Resume —...
Page 498: Troubleshooting
Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) Troubleshooting Data Logging Record Save/Recall — Then > If these are large recordings on a device, it could take several seconds for the FieldFox to display the list.
Page 499 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) Troubleshooting “Port 5000 in Use Error” on page 500 — — “Miscellaneous Mapping Errors” on page 503 IMPORTANT! Do not change the default name of the directory path for downloading the Node.js program, because FieldFox uses the default program path name to run the Mapping feature.
Page 500: General Troubleshooting
Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) Troubleshooting General Troubleshooting If your Mapping setup is not behaving as expected: “How to Set Up Mapping Settings” on — Verify setup is correct by referring to page 468.
Page 501 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) Troubleshooting Type Y and then press Enter The command window should display message confirming the termination of the batch job and close. Refer to Figure 15-25.
Page 502 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) Troubleshooting Update Available Message — If you see this message after opening and running the Run.bat file, ignore it and follow the procedure listed in,“Downloading and Using the FieldFox Map Support Tool”...
Page 503 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) Troubleshooting Miscellaneous Mapping Errors When you are you are on step 3. Save Map Images, you may see a “fetch” error or a ’checkerboard’ map displayed. Refer to Figure 15-28 Figure 15-29 on page...
Page 504 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) Troubleshooting Keysight N9915-90020 User’s Guide...
Page 505 Keysight Handheld Analyzers N99xxC User’s Guide 16 Direction Finding (Interference Finder Option 366 /Time Difference of Arrival (TDoA) Option 390) – Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307) IMPORTANT! B/C-Series FieldFox units require S9910A Pathwave Keysight Signal Measurement Software KSMS software to use the TDoA Option 390.
Page 506 Direction Finding (Interference Finder Option 366 /Time Difference of Arrival (TDoA) Option 390) – Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307) Time Difference of Arrival (TDOA) – (Requires Option 390) For help using the Pathwave Keysight Signal Management Software (KSMS), refer to the KSMS web help https://www.keysight.com/us/en/products/software/pathwave-test-softwar e/pathwave-measurements.html.
Page 507 Direction Finding (Interference Finder Option 366 /Time Difference of Arrival (TDoA) Option 390) – Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307) Time Difference of Arrival (TDOA) – (Requires Option 390) The Spectrum measured by all FieldFox units selected is measured and used to identify the signal of interest which is then geo-located using TDoA.
Page 508 Direction Finding (Interference Finder Option 366 /Time Difference of Arrival (TDoA) Option 390) – Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307) Angle of Arrival (AoA) – (Interference Finder (i.e., Manual AoA) Requires Option 366) Angle of Arrival (AoA) – (Interference Finder (i.e., Manual AoA) Requires Option 366) The FieldFox requires Option 391 for Automatic Angle of Arrival (AoA) and Option 366 for Manual Angle of Arrival (AoA) direction finding and GPS (Option...
Page 509 Direction Finding (Interference Finder Option 366 /Time Difference of Arrival (TDoA) Option 390) – Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307) Angle of Arrival (AoA) – (Interference Finder (i.e., Manual AoA) Requires Option 366) How to Access Direction Finding Mode Settings (AoA) Direction Finding Setup Procedure —...
Page 510 Direction Finding (Interference Finder Option 366 /Time Difference of Arrival (TDoA) Option 390) – Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307) Angle of Arrival (AoA) – (Interference Finder (i.e., Manual AoA) Requires Option 366) Spectrum Monitoring Display Figure 16-1 Spectrum Monitoring Display AoA Bearing - Azimuth with respect to AoA Bearing...
Page 511 Direction Finding (Interference Finder Option 366 /Time Difference of Arrival (TDoA) Option 390) – Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307) Angle of Arrival (AoA) – (Interference Finder (i.e., Manual AoA) Requires Option 366) AoA Data Results Table Descriptions - Requires Enabled GNSS (See also, Figure on page 509 Description...
Page 512 Direction Finding (Interference Finder Option 366 /Time Difference of Arrival (TDoA) Option 390) – Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307) Angle of Arrival (AoA) – (Interference Finder (i.e., Manual AoA) Requires Option 366) How to Set Up a Interference Finder (i.e., Manual AoA) Measurement – Option This section contains an example procedure for using Interference Finder (Manual AoA).
Page 513 Direction Finding (Interference Finder Option 366 /Time Difference of Arrival (TDoA) Option 390) – Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307) Angle of Arrival (AoA) – (Interference Finder (i.e., Manual AoA) Requires Option 366) Antenna Connect –...
Page 514 Direction Finding (Interference Finder Option 366 /Time Difference of Arrival (TDoA) Option 390) – Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307) Angle of Arrival (AoA) – (Interference Finder (i.e., Manual AoA) Requires Option 366) ——If Manual is Enabled: The map center can be manually adjusted using the Meas Setup >...
Page 515 Direction Finding (Interference Finder Option 366 /Time Difference of Arrival (TDoA) Option 390) – Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307) Angle of Arrival (AoA) – (Interference Finder (i.e., Manual AoA) Requires Option 366) Hardkey and Softkey Descriptions –Interference Finder (i.e., Manual AoA) – (Option 366) This section contains the following: “Measure 1 Hardkey and Softkeys”...
Page 516 Direction Finding (Interference Finder Option 366 /Time Difference of Arrival (TDoA) Option 390) – Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307) Angle of Arrival (AoA) – (Interference Finder (i.e., Manual AoA) Requires Option 366) Monitor Res BW –...
Page 517 Direction Finding (Interference Finder Option 366 /Time Difference of Arrival (TDoA) Option 390) – Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307) Angle of Arrival (AoA) – (Interference Finder (i.e., Manual AoA) Requires Option 366) ——Icon Color –...
Page 518 Direction Finding (Interference Finder Option 366 /Time Difference of Arrival (TDoA) Option 390) – Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307) Angle of Arrival (AoA) – (Interference Finder (i.e., Manual AoA) Requires Option 366) Detector – (Default == Auto) Learn more, see Chapter 9, “SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers)”...
Page 519: Troubleshooting
Direction Finding (Interference Finder Option 366 /Time Difference of Arrival (TDoA) Option 390) – Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307) Troubleshooting Troubleshooting Antenna Errors Figure 16-4 Interference Finder (i.e., Manual AoA) Error Messages Possible solutions: —...
Page 520 Direction Finding (Interference Finder Option 366 /Time Difference of Arrival (TDoA) Option 390) – Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307) Troubleshooting Keysight N9915-90020 User’s Guide...
Page 521 Keysight Handheld Analyzers N99xxC User’s Guide 17 Remote Server Mode (Requires SA Hardware/SA Option 233) Remote server mode enables you to connect your FieldFox to compatible PC-based licensed software applications (e.g., 89600 VSA software ). Refer to https://www.keysight.com/find/assist/ https://www.keysight.com/us/en/products/software/pathwave-test-softwar e/89600-vsa-software.html. 89600 VSA (via the Remote Server feature) are compatible with the frequency converter heads, but cannot apply or edit the frequency head corrections.
Page 522: In This Chapter
Remote Server Mode (Requires SA Hardware/SA Option 233) In this Chapter: FieldFox with a Remote Server mode (available with FieldFox firmware ≥A.10.00) does not display a mode softkey, because Remote Server mode is only enabled when you have a SA Option 233 on the FieldFox, compatible 89600 VSA software license loaded and running on a remote PC, and connected via LAN to your FieldFox.
Page 523: Connecting Using Remote Server
Remote Server Mode (Requires SA Hardware/SA Option 233) Connecting Using Remote Server Connecting Using Remote Server IMPORTANT! When using a frequency converter head with remote server and 89600A VSA software, first verify the head has been selected in SA mode, before connecting to the VSA using IO Libraries.
Page 524 Remote Server Mode (Requires SA Hardware/SA Option 233) Connecting Using Remote Server Figure 17-2 FieldFox Display When Remotely Connected to a PC-based Software The graphic above shows the FieldFox successfully connected to a PC—with an example hostname “PC123”—and to a compatible licensed PC-based software.
Page 525 Remote Server Mode (Requires SA Hardware/SA Option 233) 89600 VSA Software Overview (Requires N991xC/3xC and SA Option 233) 89600 VSA Software Overview (Requires N991xC/3xC and SA Option 233) IMPORTANT! The following is a description of the 89600 VSA Software’s overall capabilities. Your instrument may not have all of the hardware and firmware required to use all of the 89600 VSA Software’s listed features.
Page 526 Remote Server Mode (Requires SA Hardware/SA Option 233) 89600 VSA Software Overview (Requires N991xC/3xC and SA Option 233) For a comprehensive FieldFox VSA mode help, refer to http://rfmw.em.keysight.com/wireless/helpfiles/89600B/WebHelp/89600.ht For additional information on the 89600 VSA Software brochure, refer to https://www.keysight.com/us/en/assets/7018-02714/brochures/5990-6553. For Technical Overview, refer to https://www.keysight.com/us/en/assets/7018-02679/technical-overviews/5 990-6405.pdf...
Page 527: Interference Analyzer (Sa Mode) - Option
Keysight Handheld Analyzers N99xxC User’s Guide 18 Interference Analyzer (SA Mode) – Option 236 Option 236 provides Spectrogram display, Waterfall display, and Record/Playback. In this Chapter “Spectrogram Display (SA Option)” on page 528 “Common Settings for Waterfall and Spectrogram” on page 531 “Waterfall Display”...
Page 528: Spectrogram And Waterfall Displays
Interference Analyzer (SA Mode) – Option 236 Spectrogram and Waterfall Displays Spectrogram and Waterfall Displays Spectrogram and Waterfall displays provide a visual history of the measured spectrum. Each display type can be used to locate intermittent signals or to view signal levels and frequencies over time. Spectrogram is a single horizontal line of color-coded power while Waterfall uses a 3-D color-coded display.
Page 529 Interference Analyzer (SA Mode) – Option 236 Spectrogram and Waterfall Displays “Points ” on page 210. — Resolution (Number of Points). Learn more in How to select Spectrogram — Press Meas 1 > Interference Analysis Spectrogram > How to modify the Spectrogram You can change how the spectrogram is displayed relative to the data trace.
Page 530 Interference Analyzer (SA Mode) – Option 236 Spectrogram and Waterfall Displays — An invalid number (very large positive or negative) appears when a trace record is not available at either marker. 00:00:00 Sec appears when both markers are not available. Figure 18-2 Time marker display Keysight N9915-90020 User’s Guide...
Page 531 Interference Analyzer (SA Mode) – Option 236 Spectrogram and Waterfall Displays Figure 18-3 Delta marker display Common Settings for Waterfall and Spectrogram Waterfall settings only apply to the SA option. Set Red and Blue Limits The colors displayed on the Waterfall and Spectrogram represent the various measured power levels: —...
Page 532: Waterfall Display
Interference Analyzer (SA Mode) – Option 236 Spectrogram and Waterfall Displays — Press Meas Setup 4. — Then Spectrogram Settings Waterfall Settings — Then choose from the following: Red Limit — Using the arrows, rotary knob, or keypad, select the HIGHEST power level that you expect to measure.
Page 533 Interference Analyzer (SA Mode) – Option 236 Spectrogram and Waterfall Displays “Points ” on page 210. — Resolution (Number of Points). Learn more in Waterfall Angle This setting allows you to show more or less detail. More detail provides fewer (time) records.
Page 534: Record/Playback (Sa Option)
Interference Analyzer (SA Mode) – Option 236 Record/Playback (SA Option) Record/Playback (SA Option) Record Playback allows you to record SA trace sweeps and play them back at a later time. Use this feature to monitor spectrum activity over a period of time. You can record traces continuously, record a specified number of traces (segments), or record when triggered by a specified power level.
Page 535 Interference Analyzer (SA Mode) – Option 236 Record/Playback (SA Option) To view and edit the maximum number of records Just after opening or initiating a session... — Press Session Data TraceRecordLimit <n> — Then (n = Max number of traces that can be recorded).
Page 536 Interference Analyzer (SA Mode) – Option 236 Record/Playback (SA Option) Other display settings, such as Scale and acquisition, can also be changed during recording but are not saved with the session file. Think of these as settings that help YOU see the recording and playback activity. They do NOT change the data that is recorded.
Page 537 Interference Analyzer (SA Mode) – Option 236 Record/Playback (SA Option) AutoSession — is an auto-generated name for sessions. is the auto-generated number, incremented with each new session. The name “Manage Sessions” can be changed using Manage Sessions. Learn more in on page 545.
Page 538: How To Playback A Session
Interference Analyzer (SA Mode) – Option 236 Record/Playback (SA Option) Play — Press to start replaying the recording from the beginning. — Press Record to continue recording. How to Playback a Session — Press Trace 6 — If the session is already open, skip the following step. Otherwise: Record Playback —...
Page 539 Interference Analyzer (SA Mode) – Option 236 Record/Playback (SA Option) Playback Ref Line Controls the placement of the pink line across the screen. The playback ref line is displayed 1 pixel under the trace identified by a Playback Trace Number. Said another way, the spectrogram trace identified by Playback Trace Number is drawn 1 pixel above the playback reference line.
Page 540 Interference Analyzer (SA Mode) – Option 236 Record/Playback (SA Option) Figure 18-4 Spectrogram Measurement – Active Playback Ref Line Softkey Figure 18-5 Waterfall Analysis Measurement – Inactive Playback Ref Line Softkey Keysight N9915-90020 User’s Guide...
Page 541 Interference Analyzer (SA Mode) – Option 236 Record/Playback (SA Option) Figure 18-6 Playback Trace Date/Time Dialog Box Recording Configuration To change Recording Configuration settings: — Press Trace 6 Record Playback — Then — Then New Session Recall an existing session. New Session is selected: —...
Page 542 Interference Analyzer (SA Mode) – Option 236 Record/Playback (SA Option) Clear AllRecords — Then to clear all traces out of memory. — Then Back to return to previous menu. Recording Configuration — Then Then choose from the following: Record Time —...
Page 543 Interference Analyzer (SA Mode) – Option 236 Record/Playback (SA Option) — To record only those traces that exceed the limit, set Segment Count to 1 — To record ALL traces after a limit is exceeded, set Segment Count OFF. When used with Record Time, the timer counts down even when traces are not being recorded (limits are not being exceeded).
Page 544 Interference Analyzer (SA Mode) – Option 236 Record/Playback (SA Option) Record Source The RawMeas data setting only applies to SA Mode. For SA mode, the simplest way to use Record Playback is to record RawMeas data, which can then be played back into all of the current Trace States. However, for more complicated processing, refer to the following diagrams.
Page 545 Interference Analyzer (SA Mode) – Option 236 Record/Playback (SA Option) Playback Configuration By default, trace sweeps are played back as fast as the trace can be drawn on the screen. The following setting allows you to slow playback. In addition, you can manually scroll through individual traces using Playback Trace, or scroll through State and User Tags using Playback State/Tag.
Page 546 Interference Analyzer (SA Mode) – Option 236 Record/Playback (SA Option) — Delete After a confirmation prompt, removes the contents of the selected session from the list. — Copy Copies the selected session to a different storage device, or the same storage device with ‘Copy(n)_’ appended to the beginning of the name so that duplication is prevented.
Page 547: Reflection Mode (Sa Models) - Option
Keysight Handheld Analyzers N99xxC User’s Guide 19 Reflection Mode (SA Models) - Option 320 Option 320 requires Option 220 Tracking Generator. N9938B models require Option 100 3.5 mm connectors and Option 220. Option 100 3.5 mm connectors must be installed by the factory. Option —...
Page 548 Reflection Mode (SA Models) - Option 320 In this Chapter “How to select Reflection Mode” on page 549 “Measurement Selection” on page 549 “Normalize” on page 549 The following settings are available exactly as they function in CAT mode: “Frequency Range” on page 55 “Scale Settings”...
Page 549: Reflection Mode Settings
Reflection Mode (SA Models) - Option 320 Reflection Mode Settings Reflection Mode Settings Select Reflection Mode before making any setting in this chapter. How to select Reflection Mode — Press Mode Reflection — Then Measurement Selection How to select a Reflection Mode Measurement Learn more about these two measurements in the Supplemental Online Help: https://rfmw.em.keysight.com/wireless/helpfiles/FieldFoxOnlineSupplement alHelp/Home.htm.
Page 550 Reflection Mode (SA Models) - Option 320 Reflection Mode Settings How to perform Normalization To Port 1, connect a known device (usually an Open or Short) to which reflection measurements are to be normalized. — Press Trace 6 — Then Normalize The yellow data trace displays the current measurement with trace math applied.
Page 551: Built-In Power Meter Mode - Option
Keysight Handheld Analyzers N99xxC User’s Guide 20 Built-in Power Meter Mode – Option 310 Built-in Power Meter (also known as Channel Power Meter) uses the SA input connector to make quick and simple power measurements over a selectable frequency band. A power sensor is NOT required. In this Chapter “Frequency/ Span / Step”...
Page 552 Built-in Power Meter Mode – Option 310 “Limits” on page 567 The following Built-in Power Meter settings are identical to SA Mode settings: “Radio Standard” on page 554 “How to Access Individual Alignments” on page 221 Keysight N9915-90020 User’s Guide...
Page 553: Built-In Power Meter Settings
Built-in Power Meter Mode – Option 310 Built-in Power Meter Settings Built-in Power Meter Settings Select Built-in Power Meter Mode before making any setting in this section. How to select Built-in Power Meter Mode — Press Mode More — Then Power Meter (Built-in) —...
Page 554 Built-in Power Meter Mode – Option 310 Built-in Power Meter Settings Radio Standard A Radio Standard can used to integrate power within specific radio channels. When a Radio Standard is selected, the Span setting is automatically coupled to the defined Channel Width for that standard. (Width is the same for all channels within a standard.) Also, Unit is set to Chan, and CF is set to the nearest specific Channel defined in the standard.
Page 555 Keysight Handheld Analyzers N99xxC User’s Guide 21 Power Meter (USB/LAN) Mode - Option 302 Power Meter measurements, available with Option 302, are made with Keysight USB power sensors. Power readings are displayed on the FieldFox screen. In this Chapter “Supported Power Sensors” on page 557 “How to Connect a USB Power Sensor”...
Page 556 Power Meter (USB/LAN) Mode - Option 302 “Resolution” on page 566 “Averaging” on page 566 “Single or Continuous Measure” on page 566 “Step Detection Mode” on page 567 “Limits” on page 567 “Troubleshooting” on page 569 See Also “FOPS Settings” on page 575 “All about Markers”...
Page 557: Supported Power Sensors
Power Meter (USB/LAN) Mode - Option 302 Supported Power Sensors Supported Power Sensors For a complete list of supported Keysight USB and LAN Power Sensors, please visit: www.keysight.com/find/usbsensorsforfieldfox The FieldFox does NOT support the following Keysight USB and LAN Power Sensor features: External Triggering (Time Gated Burst Power Measurement), Power Sweep Operation, and Frequency Sweep Operation.
Page 558 Power Meter (USB/LAN) Mode - Option 302 How to Connect a USB Power Sensor How to Connect a USB Power Sensor Connect your Power Sensor to one of the FieldFox USB ports. IMPORTANT! When a USB power sensor is initially connected to the FieldFox, it may take ~10 seconds for the USB power sensor to finish zeroing and for the FieldFox to recognize the USB power sensor.
Page 559 Power Meter (USB/LAN) Mode - Option 302 How to Connect a LAN Power Sensor How to Connect a LAN Power Sensor Disconnecting a LAN sensor from its cable or disconnecting a LAN sensor while communicating with the FieldFox is not recommended. Either of these actions causes the LAN sensor to lose its internal state settings.
Page 560 Power Meter (USB/LAN) Mode - Option 302 How to Connect a LAN Power Sensor Using the LAN Sensor Settings Sensor Name [U2049XA] — Press – then select your LAN sensor model from the drop down list. Sensor ID — Press –...
Page 561 Power Meter (USB/LAN) Mode - Option 302 USB and LAN Power Meter Settings A sequence of status lights are displayed on the base of the power sensor, when the FieldFox is in Power Meter (LAN Sensor) mode. — Green / Green blinking light indicates the power sensor’s identification indicator is communicating.
Page 562 Power Meter (USB/LAN) Mode - Option 302 USB and LAN Power Meter Settings Zeroing The Keysight USB and LAN Power Sensors perform Internal Zeroing automatically. Because Keysight USB and LAN Power Sensors have an internal switch, Internal Zeroing does NOT require that the power source be turned OFF.
Page 563: Source Control
Power Meter (USB/LAN) Mode - Option 302 USB and LAN Power Meter Settings The current frequency is shown on the FieldFox screen. Source Control This feature may require an option on some FieldFox models. With the FieldFox internal source enabled, these settings allow you to make simple, absolute power measurements.
Page 564 Power Meter (USB/LAN) Mode - Option 302 USB and LAN Power Meter Settings How to Scale the Power Meter Display These softkeys are not available when Rx Power is enabled. See also “Source Power Measurements” on page 564. Manually: — Press Scale / Amptd. —...
Page 565: Display Units
Power Meter (USB/LAN) Mode - Option 302 USB and LAN Power Meter Settings Relative and Offset Power Measurements Power measurements can be made that are relative to another reading or that are offset by a fixed value. — Use Relative to measure the difference between power levels. —...
Page 566: Resolution
Power Meter (USB/LAN) Mode - Option 302 USB and LAN Power Meter Settings dBm (dB) — Sets Power Meter display to dBm or dB. — Watt (%) Sets Power Meter display to Watts or %. Resolution Resolution sets the number of digits to display after the decimal point on the digital power meter display.
Page 567: Step Detection Mode
Power Meter (USB/LAN) Mode - Option 302 USB and LAN Power Meter Settings How to set Single or Continuous — Press Sweep 3. — Then choose one of the following: — Single Automatically sets Continuous OFF and causes FieldFox to Single make ONE measurement, then hold for the next key press.
Page 568 Power Meter (USB/LAN) Mode - Option 302 USB and LAN Power Meter Settings Max Limit OFF ON — Toggles the display of the Maximum limit ON and OFF. Max Limit Value — Sets the Maximum limit power value. Power reading higher than this will exceed the limit.
Page 569: Troubleshooting
Power Meter (USB/LAN) Mode - Option 302 Troubleshooting Troubleshooting This section contains the following: LAN Sensors — “If the FieldFox LAN is removed during the use of the LAN sensor, the following steps can be taken to re-establish control of the Sensor:” on page 569 “If the Sensor LAN is removed during the use of the LAN sensor, the —...
Page 570 Power Meter (USB/LAN) Mode - Option 302 Troubleshooting b. The PWR LED will turn off when the Sensor is ready to be reconnected. The other LED next to it should be off as well. c. Then press, Meas Setup 4 > More LAN Sensor Settings >...
Page 571: Frequency Offset Using Power Sensor (Fops) - Option
Keysight Handheld Analyzers N99xxC User’s Guide 22 Frequency Offset Using Power Sensor (FOPS) – Option FOPS is accessed through (and requires) Option 302 USB Power Meter Mode. With both options installed, you can send a signal with the FieldFox internal source at one frequency, and measure this signal with a Keysight U-Series USB Power Sensor at another frequency.
Page 572 Frequency Offset Using Power Sensor (FOPS) – Option 208 “Amplitude Markers” on page 579 “Trace Math” on page 580 See Also “All about Trace Math” on page 794 Keysight N9915-90020 User’s Guide...
Page 573 Frequency Offset Using Power Sensor (FOPS) – Option 208 Overview Overview This feature allows the FieldFox source frequency to be set independently from the power sensor (receiver) frequency. With frequency offset using power sensor (FOPS), the frequency of both the source and receiver are swept, and the two track each other.
Page 574 Frequency Offset Using Power Sensor (FOPS) – Option 208 Overview The dynamic range with FOPS may be significantly different when using various power sensors. In general, the lower frequency range sensors have better dynamic range. Keysight N9915-90020 User’s Guide...
Page 575: Fops Settings
Frequency Offset Using Power Sensor (FOPS) – Option 208 FOPS Settings FOPS Settings The following settings are unique to FOPS. Standard USB Power Meter mode settings, which may be useful with FOPS, are documented in that chapter “USB and LAN Power Meter Settings” on page 561 starting in Select Power Meter (USB Sensor) before making any setting in this section.
Page 576: Sweep Type And Frequency
Frequency Offset Using Power Sensor (FOPS) – Option 208 FOPS Settings Gain — Not available until source data is stored into memory. Displays the Output power / Source power (memory trace). Rx Power — Displays the raw received power at the USB power sensor. Sweep Type and Frequency Set the source and receiver frequencies for the FOPS measurements.
Page 577 Frequency Offset Using Power Sensor (FOPS) – Option 208 FOPS Settings Freq Display. This determines how the receiver ——Then frequencies below the graticules are displayed. Choose from the following: ——Start Annotated as Start and Stop frequencies. ——Center Annotated as Center and Span frequencies. ——Then choose from the following two methods to determine the offset frequency (the frequency that the receiver is offset from the source).
Page 578: Power Sensor Settling
Frequency Offset Using Power Sensor (FOPS) – Option 208 FOPS Settings Src = 2 GHz to 3 GHz Offset = 3.8 GHz Rx = 5.8 GHz to 6.8 GHz Power Sensor Settling The following two settings work together to allow you to choose the right compromise between measurement speed and accuracy.
Page 579 Frequency Offset Using Power Sensor (FOPS) – Option 208 FOPS Settings Num Points Freq Step Size — Both settings control the number of power sensor measurements between the Start and Stop frequencies. Enter one setting and the other will be changed automatically. There must be at least two data points.
Page 580 Frequency Offset Using Power Sensor (FOPS) – Option 208 FOPS Settings Trace Math Trace Math allows you to compare data traces and perform simple math. Learn how to use Trace Math in . All Data and “All about Trace Math” on page 794 Memory features work as documented EXCEPT for the following: When Trace, then Data ->...
Page 581: Pulse Measurements Mode - Option
Keysight Handheld Analyzers N99xxC User’s Guide 23 Pulse Measurements Mode – Option 330 Pulsed power meter measurements, available with Option 330, are made with Keysight X-Series USB and LAN Peak Power Sensors. These sensors are capable of detecting, measuring, and storing data from a train of pulses at the RF input.
Page 582 Pulse Measurements Mode – Option 330 “Triggering” on page 591 “Marker Settings” on page 594 “Amplitude Markers” on page 595 “How to Search with Markers” on page 595 “How to enable Auto Analysis” on page 597 “Pulse Top” on page 597 “Grid”...
Page 583 Pulse Measurements Mode – Option 330 Supported Power Sensors Many of the features included with the FieldFox Pulse Measurements Mode are discussed in detail in the following documents: USB Power Sensors — Keysight U2020 X-Series USB Peak Power Sensors User’s Guide (U2021-90002). https://www.keysight.com/us/en/assets/9018-02579/user-manuals/9018-02 579.pdf —...
Page 584 Pulse Measurements Mode – Option 330 Supported Power Sensors Table 23-1 Pulse Measurement X-Series USB and LAN Power Sensors USB Power Sensor Model Numbers LAN Power Sensor Model Numbers U2049XA L2065XA U2062XA L2065XT U2063XA U2065XA a. LAN power sensors require FieldFoxes to have CPU2 installed. Zeroing of the compatible X-Series USB and LAN Peak Power Sensors is performed automatically at power up, every 5 seconds, and prior to measuring low level signals.
Page 585 Pulse Measurements Mode – Option 330 Supported Power Sensors How to Connect the LAN Power Sensor Connect the LAN power sensor to a LAN port. This section provides some general LAN power sensor connection information and some specific FieldFox-related LAN connection information. For more details, refer to your LAN power sensor’s User’s Guide.
Page 586 Pulse Measurements Mode – Option 330 Supported Power Sensors DNS Ser Num — Press – to enter a DNS serial number’s last 5 digits to enable the FieldFox to identify a LAN power sensor. This softkey is inactive Sensor I.D. is set to IP Address. —...
Page 587: Pulse Measurement Settings
Pulse Measurements Mode – Option 330 Pulse Measurement Settings Pulse Measurement Settings Select Pulse Measurement Mode before making any setting in this section. How to select Pulse Measurement Mode — Press Mode More — Then if your FieldFox contains more than five measurement modes. Pulse Measurements —...
Page 588: Zoom Window
Pulse Measurements Mode – Option 330 Pulse Measurement Settings Frequency — Sets the center frequency of the carrier on which pulse modulation resides. This is used to set amplitude correction of the USB Power Sensor. How to set Time Specify the time over which data will be acquired by the USB Power Sensor. When Trace Graph is selected, Tr 1 is annotated with these values.
Page 589 Pulse Measurements Mode – Option 330 Pulse Measurement Settings Zoom Time/div — While monitoring the blue vertical posts on the primary trace, enter a value for the zoom window span using the numeric keypad, the ?|? arrows, or the rotary knob. —...
Page 590 Pulse Measurements Mode – Option 330 Pulse Measurement Settings Averaging Averaging helps to reduce the effects of random noise on a measurement. The more measurements that are averaged, the greater the amount of noise reduction. Averaging is allowed for all pulse measurements. Averaging is performed in the USB and LAN Power Sensors before the data is sent to the FieldFox.
Page 591 Pulse Measurements Mode – Option 330 Pulse Measurement Settings Single or Continuous Measure This setting determines whether the FieldFox continuously queries the USB Single Power Sensor for data, or only once each time the button is pressed. Single to conserve battery power or to allow you to save or analyze specific data.
Page 592 Pulse Measurements Mode – Option 330 Pulse Measurement Settings Waiting for Trigger message on the FieldFox screen is posted on behalf of the USB Power Sensor when it is waiting for a pulse signal at the RF Input (Internal) or a TTL signal at the USB Sensor External Trigger input. How to make Trigger settings —...
Page 593 Pulse Measurements Mode – Option 330 Pulse Measurement Settings Auto Trigger Used ONLY when Trigger Type = Internal, this setting determines whether the trigger level is set manually or is set to the default level in the USB Power Sensor firmware. —...
Page 594 Pulse Measurements Mode – Option 330 Pulse Measurement Settings Trigger Settings Annotation Trigger settings are annotated on the FieldFox screen as highlighted in the following image: In the previous graphic, the settings are: Trig Level = -10 dBm, Trig Type (Int), Pos Slope (/), Delay Marker Settings Markers are not allowed with Meter-style measurements.
Page 595 Pulse Measurements Mode – Option 330 Pulse Measurement Settings Amplitude Markers Amplitude markers are horizontal dotted lines that you can move to any amplitude level on the screen. The two amplitude markers can be set independently or used as a pair of delta markers. Amplitude markers can be used as a visual comparison aid with the pulse measurement traces.
Page 596: Auto Analysis
Pulse Measurements Mode – Option 330 Pulse Measurement Settings Then choose from the following: — Target, Peak, and Minimum. Learn more about these standard features “Searching with Markers” on page 769. beginning in Rise Time — Select, then set a value in dB. Delta markers are created and placed at the Peak and at the specified value BEFORE the Peak.
Page 597 Pulse Measurements Mode – Option 330 Pulse Measurement Settings How to enable Auto Analysis — Press Mkr ->/Tools. — Then Auto Analysis — Then choose from the following: — Analysis OFF — The Analysis values appear below trace 1. Pulse Top Pulse Top is NOT the same as the pulse Peak.
Page 598 Pulse Measurements Mode – Option 330 Pulse Measurement Settings The Tr 1 data trace is displayed in yellow. The memory trace is displayed in blue. How to display data and memory traces — Press Trace 6. Trace Memory — Then —...
Page 599 Keysight Handheld Analyzers N99xxC User’s Guide Pulse Generator Mode – Option 357 Under certain conditions, Battery saver mode is not permitted when using Pulse Generator Option 357, because battery saver mode would interrupt the source output signal. When using Pulse Generator Option 357 with the RF Output ON, normal periodic power saving maneuvers used by Battery Saver mode and Smart Power Management are disabled, to avoid interrupting the source output signal.
Page 600 Pulse Generator Mode – Option 357 Figure 1 CW = 10.1 GHz is Calibrated and Power Level Below -60 dBm Figure 2 CW = 10 GHz Not Calibrated and Power Level Below -60 dBm Keysight Pulse Generator - Option 357...
Page 601 Pulse Generator Mode – Option 357 Figure 3 Pulse Generator Display and Annotation Overview The graphic above shows an overview of the Pulse generator display with a sample of the pulse generation types. Some of the features included with the FieldFox Pulse Generator Mode are discussed in detail in the following documents: Additional information: For additional background on some of the features mentioned in this chapter,...
Page 602 Pulse Generator Mode – Option 357 “How to make Pulse Generator Measurements” on page 603 — “How to Setup a pulse sequence table” on page 606 — “How to Set the Amplitude” on page 619 — “How to Set the Trigger Type” on page 619 —...
Page 603: Pulse Generator Settings
Pulse Generator Mode – Option 357 Pulse Generator Settings Pulse Generator Settings Select Pulse Generator Mode before making any setting in this chapter. A calibration is required, before using the pulse generator. Refer to the “Making Calibration Measurements” on page 620.
Page 604 Pulse Generator Mode – Option 357 Pulse Generator Settings Figure 4 Cal Wizard "Prepare for calibration..." and "Connect power splitter..." Screen IMPORTANT! For best results the 11667C should be connected directly to Port 2. The use of any adapters will degrade the calibration, because Port 2 is uncalibrated.
Page 605 Pulse Generator Mode – Option 357 Pulse Generator Settings Modifying Pulse Type Parameters The pulse generation method defaults to CW measurement on with RF, MODulation, Pulse, and SA measurement monitor (Spec Monitor) OFF. — Press Measure 1 — Then choose from the following: RF OFF ON —...
Page 606 Pulse Generator Mode – Option 357 Pulse Generator Settings ——BPSK enables FM Binary Phase Shift Keying (BPSK) modulation. Spec Monitor — (default == OFF) enables the SA monitor that displays the pulse signal’s RF signal source frequency and receiver offset. How to Setup a pulse sequence table This section will guide you through the creation of a pulse sequence table.
Page 607 Pulse Generator Mode – Option 357 Pulse Generator Settings ——Next Page moves the cursor to the top of the next page, if the table extends onto the next page or to the end of the current table, if table is on one page. ——Next Up moves the cursor to the top row of the previous page.
Page 608 Pulse Generator Mode – Option 357 Pulse Generator Settings Figure 5 Pulse Sequence Table Figure 6 Editing a Pulse Sequence Table Sequence Table Set Up Example — Press Measure 1 — Then Pulse Sequence — Then — Then Meas Setup 4 opens a menu of pulse sequence table softkeys. Pulse Sequence Table ——Then Keysight Pulse Generator - Option 357...
Page 609 Pulse Generator Mode – Option 357 Pulse Generator Settings ——Then in the Pulse Sequence Table, use the arrow keys or the knob to edit the Selection (Sel—disable/enable sequences to play), Pulse Type (Type—change the pulse type), Pulse Width, Interval (PRI), Dev/Depth (Hz %), Mod Width (Width), Trig (Out), Trig (Delay), Pulse (Count), Blanking (Off Time), and Play (Count).
Page 610 Pulse Generator Mode – Option 357 Pulse Generator Settings Figure 8 Chirped pulse plays continuously with trigger out every pulse Figure 9 FM triangle doublet with 10.0 ms blanking (OFF time) continuously with trigger out every sequence Keysight Pulse Generator - Option 357...
Page 611 Pulse Generator Mode – Option 357 Pulse Generator Settings Figure 10 FM triangle doublet with 2.0 s blanking (OFF time) continuously with trigger out every pulse Figure 11 AM triplet with 3.5 s blanking (OFF time) plays continuously with trigger out Keysight Pulse Generator - Option 357...
Page 612 Pulse Generator Mode – Option 357 Pulse Generator Settings Figure 12 Pulse Sequence Blanking (OFF Time) How to Set the Pulse Measurement Setup Parameters This section provides details how to set up each type of Pulse Generator type. Measurement setup menu available softkeys depend on the selected pulse type.
Page 613 Pulse Generator Mode – Option 357 Pulse Generator Settings — sets the pulse repetition frequency. Not available with AM pulse. The default duty cycle is 30%. Additionally, whenever a pulse width is changed to a value that is incompatible with the current pulse period setting, the pulse period is set to a 30% duty cycle with the new pulse width.
Page 614 Pulse Generator Mode – Option 357 Pulse Generator Settings FM Deviation Table 12-1 on — sets the FM deviation. Refer to page 615. See also, Pulse Width softkey description above and “FM Deviation Limits (Hz) — (N9915C and N9935C Shown—Other FieldFox Models are Similar)”...
Page 615 Pulse Generator Mode – Option 357 Pulse Generator Settings Table 12-1 Recommended Modulation Limits Type of Signal Maximum Maximum Minimum Minimum Maximum Maximum Minimum (Pulsed or FM Rate Pulse Modulation AM Rate AM Depth Time Non-Pulsed) Deviation Width Width Interval Pulsed AM Pulse 50 µs...
Page 616 Pulse Generator Mode – Option 357 Pulse Generator Settings Measurement Setup Settings Pulse Generator Modulation Waveform (CW) Types — Press Meas Setup 4 — If AM Triangle or AM Sine – Then choose from the following: AM Rate — sets the AM rate. (0 to 50 kHz, default is 1 kHz) While you are able to set the AM Rate up to 50 kHz.
Page 617 Pulse Generator Mode – Option 357 Pulse Generator Settings — Time Interval set the time duration of the selected frequency tone. Freq Index == 1 represents the CW, therefore Enable is fixed to ON and Deviation is fixed at 0 Hz with no option for adjustment. The following is an example showing 3-Tone FSK: F1 = 5GHz, F2 = 5GHz + 1kHz, F3 = 5GHz - 1kHz, and each frequency tone is activated for 1ms.
Page 618 Pulse Generator Mode – Option 357 Pulse Generator Settings Freq Index —— Press to toggle 4 to disable the frequency tone —— Press Enable to toggle OFF Figure 16 Meas Setup FSK setting to disable frequency tone for Freq Index == 4 —...
Page 619 Pulse Generator Mode – Option 357 Pulse Generator Settings How to Set the Amplitude How to set Amplitude Press Scale / Amptd. Then choose from the following: Amplitude — sets the RF port power from -110 dBm to 10 dBm. (default is –30 dBm) How to Set the Trigger Type Freerun/RefOut and SSync/TrigOut Video allows you to select a trigger type.
Page 620 Pulse Generator Mode – Option 357 Making Calibration Measurements Making Calibration Measurements Use this procedure to calibrate and store source, test cable, and single point calibrations in the FieldFox. Refer to Figure 20 on page 624 Figure 21 on page 624.
Page 621 Pulse Generator Mode – Option 357 Making Calibration Measurements Figure 18 Calibration Wizard: Pulse Generator Source Calibration Recall Calibration Softkeys Recall Cal — if a calibration has been previously stored in the current memory location, this menu enables you to recall a previously stored calibration file. View Cal —...
Page 622 Pulse Generator Mode – Option 357 Making Calibration Measurements User’s Guide: https://www.keysight.com/us/en/assets/9923-02187/user-manuals/FieldFo x-C-Series-N991xC-2xC-3xC-Unabridged-User-Guide.pdf. IMPORTANT! Pulse Generator mode handles the Amptd? condition differently than SA Mode. Setting the Amplitude Alignment may not correct the Amptd? condition, unless the RF is OFF or when changing frequencies.
Page 623 Pulse Generator Mode – Option 357 Making Calibration Measurements Figure 19 on Follow the Cable Loss Measurement Wizard prompts. Refer to page 623. View Corrections — toggles a display on/off that enables you to view your cable’s loss. Apply Corrections applies the current cable corrections in memory.
Page 624 Pulse Generator Mode – Option 357 Making Calibration Measurements Figure 20 Cable Calibration Annotation Figure 21 Verify Cable: [View Correction] Cable Loss Graph Using the Independent Marker Use the FieldFox independent marker to measure the loss along the displayed cable trace. —...
Page 625 Pulse Generator Mode – Option 357 Making Calibration Measurements How to do a Single Point Frequency Calibration After setting up your Frequency. — Press Freq/Dist — Then choose from the following: — Press Do Cal @Freq to do a single frequency point calibration —...
Page 626 Pulse Generator Mode – Option 357 FM Deviation Limits (Hz) — (N9915C and N9935C Shown—Other FieldFox Models are Similar) FM Deviation Limits (Hz) — (N9915C and N9935C Shown—Other FieldFox Models are Similar) Table 1 on page 627 shows the frequency values for N9915C and N9935C, other FieldFox models are similar, but the applicable frequency range varies.
Page 627 Pulse Generator Mode – Option 357 FM Deviation Limits (Hz) — (N9915C and N9935C Shown—Other FieldFox Models are Similar) Table 1 Frequency Bands FM Deviation Limits Tune Frequency (Hz) FM Lower Limit FM Upper Limit Worst Case N, Number Available % Use For Deviation Maximum...
Page 628 Pulse Generator Mode – Option 357 FM Deviation Limits (Hz) — (N9915C and N9935C Shown—Other FieldFox Models are Similar) Maximum Settable FM Deviation For each FM type, whether it’s Pulse or Non-Pulse excluding BPSK, there exists a maximum deviation setting. This setting relies on the FM rate and a value called ’N’, which you can locate in the Table 1, “Frequency Bands FM Deviation Limits”, on page...
Page 629: Vvm (Vector Voltmeter) Mode - Option
Keysight Handheld Analyzers N99xxC User’s Guide 25 VVM (Vector Voltmeter) Mode - Option 308 VVM Mode (Option 308) measures the electrical length of cables and other devices. The 1-Port Cable Trimming and 2-Port Transmission measurement displays the electrical length in both Magnitude and Phase. Figure 25-1 Display for the 1-Port Cable Trimming measurement In this Chapter...
Page 630 VVM (Vector Voltmeter) Mode - Option 308 Procedures “1-Port Cable Trimming Measurements ” on page 637 “2-Port Transmission Measurements” on page 639 “A/B and B/A Measurements” on page 640 Keysight N9915-90020 User’s Guide...
Page 631 VVM (Vector Voltmeter) Mode - Option 308 Overview Overview In the FieldFox, both 1-port and 2-port measurement types use a different configuration setup from the HP/Keysight 8508A Vector Voltmeter. Figure 25-2 Typical 8508A measurement configuration –as shown in the 8508A manual. The above block diagram requires an external source and directional coupler to measure the electrical length of a DUT or cable to be trimmed.
Page 632: Vvm Mode Settings
VVM (Vector Voltmeter) Mode - Option 308 VVM Mode Settings VVM Mode Settings Select VVM Mode before making any setting in this section. How to select VVM Mode — Press Mode — Then Measurement Selection How to select a VVM Measurement —...
Page 633 VVM (Vector Voltmeter) Mode - Option 308 VVM Mode Settings This setting survives a Preset and Mode Preset. How to set Resolution — Press Scale/Amptd — Then Resolution — Then choose: — 0.0 (default) — 0.00 IF Bandwidth Reducing the IF receiver bandwidth reduces the effect of random noise on a measurement.
Page 634 VVM (Vector Voltmeter) Mode - Option 308 VVM Mode Settings How to set Output Power — Press Meas Setup 4. — Then More Output Power — Then — High Sets output power to the maximum achievable power at all displayed frequencies. Output power is NOT FLAT across the displayed FieldFox frequency span.
Page 635 VVM (Vector Voltmeter) Mode - Option 308 VVM Mode Settings To restart the averaging process, press Meas Setup 4, then More, then Restart Single or Continuous Measure This setting determines whether the FieldFox measures continuously or only once each time the Single button is pressed.
Page 636 VVM (Vector Voltmeter) Mode - Option 308 VVM Mode Settings — For 2-port measurements, Zero is typically pressed when a THRU connection is made in place of a DUT. Learn more in “2-Port Transmission Measurements” on page 639. Press Zero OFF before performing a Mechanical Cal (sets Zero to OFF). How to select Zeroing —...
Page 637: Port Cable Trimming Measurements
VVM (Vector Voltmeter) Mode - Option 308 1-Port Cable Trimming Measurements 1-Port Cable Trimming Measurements A 1-Port Cable Trimming measurement is used in a cable fabrication procedure to validate proper electrical length. — The R receiver measures incident signal (green line) out of the source. —...
Page 638 VVM (Vector Voltmeter) Mode - Option 308 1-Port Cable Trimming Measurements 9. Remove the reference cable from the FieldFox PORT 1 connector. 10.Connect an unterminated, longer cable to the FieldFox PORT 1 connector. 11.Observe the displayed phase difference between the reference cable and the untrimmed cable.
Page 639: Port Transmission Measurements
VVM (Vector Voltmeter) Mode - Option 308 2-Port Transmission Measurements 2-Port Transmission Measurements A 2-Port Transmission measurement is used for measuring electrical length, insertion loss, gain, or isolation of a DUT at a single CW frequency. The FieldFox signal source is transmitted out the port 1 connector, through the DUT, and into the port 2 connector.
Page 640: A/B And B/A Measurements
VVM (Vector Voltmeter) Mode - Option 308 A/B and B/A Measurements A/B and B/A Measurements These measurements allow you to use the FieldFox A and B receivers, along with an external source, to make ratioed measurements. These measurements require the “Full 2-port S-parameters” option. The image below shows a typical configuration for a B/A magnitude and phase measurement of a 2-port DUT.
Page 641: Erta (Extended Range Transmission Analysis) Mode - Option
Keysight Handheld Analyzers N99xxC User’s Guide 26 ERTA (Extended Range Transmission Analysis) Mode - Option ERTA (also known as FoxTrot) uses two FieldFox units to make long-distance scalar transmission measurements. One unit is the source and the other unit is the Receiver.
Page 642 ERTA (Extended Range Transmission Analysis) Mode - Option 209 Overview Overview ERTA uses two FieldFox units to make long-distance scalar, tracking transmission measurements. One unit is the source and the other unit is the Receiver. Communication takes place between the two units with a LAN connection and hard-wired trigger signals.
Page 643: Requirements And Limitations
ERTA (Extended Range Transmission Analysis) Mode - Option 209 Requirements and Limitations Requirements and Limitations Requirements — Two FieldFox units with option 209 installed. SA Mode is required for option 209. — Ethernet LAN cable(s). Either TWO cables that are used to connect both units to the internet or ONE cable that is long enough to connect the two FieldFox units.
Page 644: Start Connection Wizard
ERTA (Extended Range Transmission Analysis) Mode - Option 209 Start Connection Wizard Start Connection Wizard Use the FieldFox Connection Wizard to guide you through the following physical setup. On the Receiver unit: — Press Mode then ERTA — Then Meas Setup 4 then Connection Wizard then Start.
Page 645 ERTA (Extended Range Transmission Analysis) Mode - Option 209 Start Connection Wizard — On the Source unit, connect the Port 1 RF Output connector to the input of a power splitter. — Connect one power splitter output to the Source unit Port 2 RF Input. —...
Page 646 ERTA (Extended Range Transmission Analysis) Mode - Option 209 Start Connection Wizard — Press Continue. STEP 5: Measure Jumper Cables These steps can be used to characterize an Input and Output jumper cable that may be connect the DUT to the FieldFox. The loss of the characterized jumper cables can then be removed from the DUT measurements.
Page 647 ERTA (Extended Range Transmission Analysis) Mode - Option 209 Start Connection Wizard Re-measure or Continue. — Press — Press Apply Corrections Auto to remove the jumper cables from subsequent DUT measurements (Default = Auto). — Press Done to exit the Connection Wizard. Primary ERTA Partnership.
Page 648: Configure Measurement Settings
ERTA (Extended Range Transmission Analysis) Mode - Option 209 Configure Measurement Settings Configure Measurement Settings On the Receiver unit, select measurement settings such as Frequency range, Res Be, Points, and so forth. Zeros pan frequency is allowed even though the frequency is fixed and no stepping is required.
Page 649 ERTA (Extended Range Transmission Analysis) Mode - Option 209 Configure Measurement Settings “Trace Display States (SA mode)” on Learn more about Trace Display States in page 211. Normalize Normalize can be used to quickly provide ‘zeroing’ for any of the ERTA (B, R, or G) traces.
Page 650 ERTA (Extended Range Transmission Analysis) Mode - Option 209 Configure Measurement Settings Improve Dynamic Range The following settings can be made to reduce measurement noise which improves Dynamic Range. Increase source power as much as possible while maintaining a leveled source. How to set Source Power —...
Page 651: Am/Fm Metrics (Sa Only And Option 355)
Keysight Handheld Analyzers N99xxC User’s Guide 27 AM/FM Metrics (SA Only and Option 355) The FieldFox assumes you have manually set up the CF, span, and amplitude settings. Refer to Chapter 9, “SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers).” In this Chapter “Using AM/FM Metrics”...
Page 652: Using Am/Fm Metrics
AM/FM Metrics (SA Only and Option 355) Using AM/FM Metrics Using AM/FM Metrics Using FieldFox’s analog demodulation, users maintaining AM/FM radio systems can demodulate and characterize AM and FM signals. They can tune to the signal and listen to the audio tones using FieldFox’s built-in speakers or a headphone.
Page 653 AM/FM Metrics (SA Only and Option 355) Using AM/FM Metrics Table 27-1 Measurement Details (Continued) (Sheet 2 of 2) THD (Total Harmonic The total harmonic distortion (THD) measurement further isolates the total Distortion) harmonic distortion component from the noise component in the total unwanted signal.
Page 654 AM/FM Metrics (SA Only and Option 355) Using AM/FM Metrics How to Set Up AM/FM Metrics — Connect a test tone to the FieldFox SA Port 2 (Port 2) — Press Measure > Analog Demod Tune & Listen > Analog Demod Selecting FM Wide vs.
Page 655 AM/FM Metrics (SA Only and Option 355) Using AM/FM Metrics Figure 27-1 AM Metrics - Example 1 Keysight N9915-90020 User’s Guide...
Page 656 AM/FM Metrics (SA Only and Option 355) Using AM/FM Metrics Figure 27-2 AM Metrics - Example 2 Keysight N9915-90020 User’s Guide...
Page 657 AM/FM Metrics (SA Only and Option 355) Using AM/FM Metrics Figure 27-3 FM Metrics - Wide band Example Keysight N9915-90020 User’s Guide...
Page 658: Sinad And Thd Calculations
AM/FM Metrics (SA Only and Option 355) SINAD and THD Calculations SINAD and THD Calculations — FieldFox converts the audio waveform to the audio frequency spectrum using an FFT (i.e., The FFT result is not displayed). Refer to Figure 27-4 on page 658.
Page 659 AM/FM Metrics (SA Only and Option 355) SINAD and THD Calculations Figure 27-5 SINAD and THD Results - Example 1 Keysight N9915-90020 User’s Guide...
Page 660 AM/FM Metrics (SA Only and Option 355) SINAD and THD Calculations Figure 27-6 SINAD and THD Results - Example 2 Keysight N9915-90020 User’s Guide...
Page 661: Interpreting Am/Fm Metrics Error Messages
AM/FM Metrics (SA Only and Option 355) Interpreting AM/FM Metrics Error Messages Interpreting AM/FM Metrics Error Messages This section discusses possible AM/FM Metrics error messages and how to correct them. Test Tone Not Found A Test Tone Not Found message is displayed under the following circumstances: —...
Page 662 AM/FM Metrics (SA Only and Option 355) Interpreting AM/FM Metrics Error Messages Test Tone Not Found - Example The following response had the following settings: — Source CF: 140 MHz — FM Deviation: 18 kHz — Modulation Rate: 1 kHz Reasons for error: —...
Page 663 AM/FM Metrics (SA Only and Option 355) Interpreting AM/FM Metrics Error Messages Test Tone Not Found - Corrected Example The following response was corrected with these setting changes: — Frequency set to narrower frequency span of 50 kHz — Ideally the frequency span should show the modulation envelope down to –60 dB below the RF power level Response corrected, because: —...
Page 664 AM/FM Metrics (SA Only and Option 355) Interpreting AM/FM Metrics Error Messages Keysight N9915-90020 User’s Guide...
Page 665: Channel Scanner (Option 312)
Keysight Handheld Analyzers N99xxC User’s Guide 28 Channel Scanner (Option 312) In this Chapter: “Using Channel Scanner” on page 666 “How to Set Up Channel Scanner” on page 667 “Field Strength Measurements” on page 693 — “Using the Antenna/Cable Editor” on page 699 —...
Page 666: Using Channel Scanner
Channel Scanner (Option 312) Using Channel Scanner Using Channel Scanner Channel Scanner enables you to do the following: Measure and display channel power vs. frequency for up to 20 channels simultaneously. Seven Display Types: — Bar graph vertical display orientation —...
Page 667: How To Set Up Channel Scanner
Channel Scanner (Option 312) How to Set Up Channel Scanner How to Set Up Channel Scanner This section briefly reviews the steps in setting up a channel scan measurement. If you are not familiar with this process or would like more “How to Define a Channel and Use Channel Scanner”.
Page 668 Channel Scanner (Option 312) How to Set Up Channel Scanner 4. In the EMF Custom List scan mode, to adjust the Relative Mode setting and select specify column for display in the result table: IMPORTANT! The EMF softkey menu is only activated when the scan mode is in the EMF Custom List.
Page 669 Channel Scanner (Option 312) How to Set Up Channel Scanner b. Then press Record Save/Recall — Then File Folder Default System — Default – Sets the default User Folder path: ——List files (*.csv and *.kml) are save-recalled "[CurrentDevice]:\RecordPlayback\ CS\" ——Data Log-Play files are save-recalled to: "[CurrentDevice]:\RecordPlayback\ CS\"...
Page 670 Channel Scanner (Option 312) How to Set Up Channel Scanner 6. Press Back to return to previous menu. 7. Outdoor Mapping only: If recording, then: — View Map OFF ON To enable/disable the current map view (Default == latitude/longitude == 0.00/00. Need GPS to view current location (Default == OFF).
Page 671 Channel Scanner (Option 312) How to Set Up Channel Scanner 8. Outdoor Mapping: Export KML file into 3rd party mapping software (i.e., Google or Google Earth) Learn more, refer to Chapter 15 Mapping and “Setting up Data Logging” on page 483.
Page 672 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 28-2 Channel Definition Step 1A: Scan Mode – Range Channel Defined 1. Define some channels: Press Measure 1 > Scan Mode > Range 2. Press Edit Range and modify table items: —...
Page 673 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 28-3 Range Table Settings 3. Press Done Step 1B: Scan Mode – Custom List Channel Defined 1. Define some channels: Press Measure 1 > Scan Mode > Custom List 2.
Page 674 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 28-4 Custom List Table Settings 3. Press Done 4. Press Save Recall List > Save List to save a custom list. See also “How to use the FieldFox labeler ” on page 854.
Page 675 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 28-5 EMF Custom List Table Settings 3. Press Done 4. Press Save Recall List > Save List to save a EMF Custom List. See also “How to use the FieldFox labeler ” on page 854.
Page 676 Channel Scanner (Option 312) How to Set Up Channel Scanner IMPORTANT! The EMF softkey menu is only activated when the scan mode is in the EMF Custom List. Using EMF softkey menu 1. Press Trace 6 > then 2. Press Column Display and choose from the following: —...
Page 677 Channel Scanner (Option 312) How to Set Up Channel Scanner Step 2. Select Display Type Select one of the following display orientations: — Select Measure 1 > Display Type—choose: — Bar ChartV — Bar ChartH — Channel Pow — Table Strip Chart —...
Page 678 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 28-7 Bar Chart Vertical Display Type - EMF Custom List with Limit Line Configured Figure 28-8 Bar Chart Horizontal Display Type Keysight N9915-90020 User’s Guide...
Page 679 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 28-9 Bar Chart Horizontal Display Type - EMF Custom List with Limit Line Configured Figure 28-10 Channel Power Display Type Keysight N9915-90020 User’s Guide...
Page 680 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 28-11 Table Display Type Keysight N9915-90020 User’s Guide...
Page 681 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 28-12 Table Display Type - EMF Custom List with Limit Line Configured In EMF Custom List scan mode Table, the P/PLim column will show data when limit lines are configured. P/PLim represents the relative power compared to the limit.
Page 682 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 28-13 Strip Chart Display Type Figure 28-14 Strip Chart Overlay Display Type Keysight N9915-90020 User’s Guide...
Page 683 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 28-15 Scan&Listen Display Type Keysight N9915-90020 User’s Guide...
Page 684 Channel Scanner (Option 312) How to Set Up Channel Scanner Step 3. Modify Scale and the Display Color Bar Settings To modify the scale values: 1. Press Scale/Amptd > Scale and input desired scale value. 2. Then press to set the new scale unit. To assign colors to low and high power values: 1.
Page 685 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 28-17 Indoor Display Colors Step 4. Sort and Search softkey menu Use the Sort and Search softkey menu to organize your data. — Press Trace 6 > Sort and Search then choose from the following: Sort —...
Page 686 Channel Scanner (Option 312) How to Set Up Channel Scanner ——Auto – FieldFox chooses the search count values based on other coupled settings. Only Custom List or EMF Custom List. Enter ——User – Manual input the search count values then press to set the search count for Search function.
Page 687 Channel Scanner (Option 312) How to Set Up Channel Scanner — User specifies how often results are stored. — Time: Store results every “n” seconds — Distance: Store results every “n” meters. GPS must be enabled to store results by distance. Keysight N9915-90020 User’s Guide...
Page 688 Channel Scanner (Option 312) How to Set Up Channel Scanner Outdoor Mapping Procedure Chapter 15 For Indoor Mapping and more on Outdoor Mapping, see also Mapping and “Option 352 Indoor Maps Setup Procedure” on page 471, “Option 352 Outdoor Maps Setup Procedure” on page 475, and “Setting up Data Logging”...
Page 689 Channel Scanner (Option 312) How to Set Up Channel Scanner Playing a Data Log and Viewing the Spectrogram To play the log results: Refer to Figure 28-18 on page 690. 1. Press Data Logging > Play 2. Then choose: — Optional: Use the RPG (fine adjust) or the arrow keys (coarse adjust) to change the color bar.
Page 690 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 28-18 Spectrogram View Step 6. Save the Log Results: Two file types are supported for save or recall log results: — KML file format — Files include bar color —...
Page 691 Channel Scanner (Option 312) How to Set Up Channel Scanner 5. Optional: Auto Save ON (Default == OFF) — When Auto Save is on, during recording, the FieldFox stores intermediate results in a temporary file. If the power fails during recording you can retrieve the results. Select Recall File.
Page 692 Channel Scanner (Option 312) How to Set Up Channel Scanner 7. When done press Back or Esc. The files save dialog is displayed. Edit the file name where the file results will be stored as a *.kdat file. 8. Press Done Chapter 15 “Setting up Data Logging”...
Page 693 Channel Scanner (Option 312) How to Set Up Channel Scanner Field Strength Measurements To measure the strength of any signal transmitted through the air, an antenna must be connected to the FieldFox. The Field Strength feature allows you to enter the frequency response of the receiving antenna (the Antenna Factor) and associated cabling, and then have amplitude corrections automatically compensate the displayed trace for that response.
Page 694 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 28-21 Editing Antenna Factor (See also, Figure 28-20 on page 693.) Keysight N9915-90020 User’s Guide...
Page 695 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 28-22 Yellow Trace with Cable and Antenna Corrections Yellow trace: Cable correction, which is the sum of the antenna correction and the cable correction (These corrections are linearly interpolated). Field Strength Measurements Yellow Trace - Corrected trace with antenna factor.
Page 696 Channel Scanner (Option 312) How to Set Up Channel Scanner View Corrections View Corrections ON OFF — > Turn ON and OFF Yellow Trace - Antenna/Cable corrections. This is a composite of all cable/antenna corrections that are currently applied. Available as a useful visual aid, the zero “dB”...
Page 697 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 28-23 Apply Corrections Set to Auto Keysight N9915-90020 User’s Guide...
Page 698 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 28-24 Apply Corrections Set to Disabled Keysight N9915-90020 User’s Guide...
Page 699 Channel Scanner (Option 312) How to Set Up Channel Scanner Using the Antenna/Cable Editor To learn more, refer to Chapter 9, “SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers).” and to “Using the Antenna/Cable Editor” on page 169. Using Mapping Channel Scanner mode has indoor and outdoor mapping capability. Refer to Chapter 15, “Indoor and Outdoor Mapping –...
Page 700 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 28-25 Uncertainty List Table To learn more, refer to Chapter 9, “SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers).” “Using the Antenna/Cable Editor” on and to page 169. Using Resolution Bandwidth Tradeoff (Res BW Tradeoff) This feature controls the resolution bandwidth for the current measurement.
Page 701 Keysight Handheld Analyzers N99xxC User’s Guide 29 Noise Figure Mode (Option 356) IMPORTANT! Noise Figure mode uses DC variable voltage source (VVS) – (Option 309) during the measurements. The voltage might be as high as 28V during the measurement. During the noise figure measurement, always make sure there are no voltage sensitive devices connected to the DC SMB output port.
Page 702 Noise Figure Mode (Option 356) Figure 29-1 Example of Jitter Uncertainty (21 points)—with Uncertainty Bars. Learn more “How to use Auto-Integration” on page 753. Figure 29-2 Example of Jitter Uncertainty (21 points)—with Uncertainty Bars Disabled. Learn more in “How to use Auto-Integration” on page 753.
Page 703 Noise Figure Mode (Option 356) In this Chapter: “Using Noise Figure” on page 704 “How to Define a Noise Figure Measurement” on page 710 “Example: Typical Noise Figure Measurement Procedure” — on page 711 “Overview of Softkey Menus” on page 712 —...
Page 704: Using Noise Figure
Noise Figure Mode (Option 356) Using Noise Figure Using Noise Figure Noise Figure enables you to do the following: The FieldFox uses the Y-Factor technique to accurately verify and characterize the noise figure of devices. Option 356 has these features: Five Measurement Types —...
Page 705 Noise Figure Mode (Option 356) Using Noise Figure Figure 29-3 Display Annotation—Overview 1. Variable Voltage Source (VVS) Status (appears when VVS is on. Refer to “Variable Voltage Source (Opt. 309)” on page 835. 2. Calibration Status 3. Excess Noise Ratio (ENR) Status 4.
Page 706 Noise Figure Mode (Option 356) Using Noise Figure Figure 29-4 Dual Display Annotation Window 1. In the dual-window layout, non-trace-specific annotations are moved from the left of the traces to the bottom of the traces Figure 29-5 Calibration Annotation No Cal = No calibration applied 2.
Page 707 Noise Figure Mode (Option 356) Using Noise Figure Figure 29-6 ENR Status and Mode Annotation ENR Status annotation ~ENR = Using ENR table, but it’s extrapolated (the sweep frequency range goes beyond the table frequency range) = Using ENR table and it’s not extrapolated (the sweep frequency range is within the table frequency...
Page 708 Noise Figure Mode (Option 356) Using Noise Figure Figure 29-8 Smart Noise Source Annotations Top Figure: 1. Automatically loaded T Cold value from the USB Noise Source, measured in Kelvin. 2. “Smart (Auto)” under ENR Mode notation. – The device model will say “(None)”...
Page 709 Noise Figure Mode (Option 356) Using Noise Figure Figure 29-9 Smart Noise Source – Source Menus ENR Mode: Smart (Auto) only: – T value gets cold automatically loaded into FieldFox when the USB Noise Source is connected. – This value is applied as the Default value for T Cold menu.
Page 710: How To Define A Noise Figure Measurement
Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement Figure 29-10 Smart Noise Source – Meas Setup > Noise Source > Noise Source Control ENR Mode: Smart (Auto) only: 1. Reconnect: Attempts to connect to USB Smart Noise Source.
Page 711 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement “Example: Typical Noise Figure Measurement Procedure” on page 711 — — “Overview of Softkey Menus” on page 712 — “How to Use DUT Measurement Setups” on page 720 —...
Page 712 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement 7. Enter DUT setup type: Meas Setup > > Type — Amplifier (default), — Downconverter, — Upconverter, or — Multi-Stage Converter 8. Run a User Calibration (i.e., If you are using an external preamp). (Cal >Run User Cal and follow prompts).
Page 713 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement — Noise Temperature Specify Noise Temperature or — YFactor Specify Y-Factor b. Then modify the settings based on the selected noise figure type 2. Select Measure Setup—choose: — Noise Source “DUT or”...
Page 714 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement ——ENR Uncert. sets the ENR spot uncertainty value in dB (default is 0.000 dB). ——On | Γ sets the On value (hot) of the ENR spot value’s 50 Ω...
Page 715 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement ——Save ENR Table Opens a menu of softkeys to enable you to enter a unique noise source filename. ——Recall ENR Table Opens a menu of file recall softkeys and displays a list of stored noise source files.
Page 716 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement ——Reload ENR Data Manually reloads any existing USB noise figure sensor data. This softkey is inactive/grayed out when a Noise Source is not detected. When a USB noise source is detected and this softkey is pressed, the data from the noise source is loaded into the ENR table overwriting any previous ENR table data.
Page 717 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement — Integration Opens a menu of softkeys to define the Integration’s Mode Auto or Fixed and Jitter values. For optimum speed and performance measurement results, it is recommended that auto-integration is used in all noise figure measurements.
Page 718 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement ——DUT Spot Values (Only active when DUT Mode = Spot). Then choose: Input |Γ —— Sets the input value. Γ Output |Γ —— Sets the output Γ value. ——...
Page 719 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement IMPORTANT! The FieldFox displays Replace existing file?, because the displayed default filename is the one last saved. Enter a unique filename to avoid loss of table data. ——Save DUT Table Opens a Create a filename menu of softkeys to enter a DUT table filename and then to save the file.
Page 720 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement ——ENR Uncert. Enable/disable the ENR Uncertainty. ——Mismatch Uncert. Enable/disable the Mismatch Uncertainty. ——User Cal Uncert. Enable/disable the User Cal Uncertainty. ——Back to return to previous menu. — Uncert Cover Sets the uncertainty coverage value for the current settings.
Page 721 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement Figure 29-11 DUT – Measurement Setup – Type [Amplifier] Screen DUT – Measurement Setup – Type [Amplifier] Used for setting up DUT parameters without an external preamplifier (LNA) –...
Page 722 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement Figure 29-12 DUT Measurement Setup – Type [Downconverter] Screen DUT – Measurement Setup – Type [Downconverter] Used for setting up DUT parameters without an external preamp – Type [Downconverter] ––Performs internal frequency downconversion (converts RF down to IF)
Page 723 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement Figure 29-13 DUT Measurement Setup – Type [Upconverter] Screen DUT – Measurement Setup – Type [Upconverter] Used for setting up DUT parameters without an external preamp –Type [Upconverter] ––Performs internal frequency upconversion (technically, converts IF up...
Page 724 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement Figure 29-14 DUT Measurement Setup – Type [Multi-Stage Converter] Screen DUT – Measurement Setup – Type [Multi-Stage Converter] Used for setting up DUT parameters – Type [Multi-Stage Converter] ––Multi-Stage Converter: Performs multi-stage frequency conversion...
Page 725 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement ENR Mode: Smart (Auto) – Calibration Wizard (DUT) Figure 29-15 DUT – Measurement Setup – Type [Amplifier] Screen – ENR Mode: Smart (Auto) DUT – Measurement Setup – Type [Amplifier] with External Amplifier (LNA) – ENR Mode: Smart (Auto) USB Smart Mode DUT Wizard visibility:...
Page 726 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement Figure 29-16 DUT – Measurement Setup – Type [Downconverter] Screen – ENR Mode: Smart (Auto) DUT – Measurement Setup – Type [Downconverter] with External Amplifier (LNA) – ENR Mode: Smart (Auto) USB Smart Mode DUT Wizard visibility: –...
Page 727 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement Figure 29-17 DUT – Measurement Setup – Type [Upconverter] Screen – ENR Mode: Smart (Auto) DUT – Measurement Setup – Type [Upconverter] with External Amplifier (LNA) – ENR Mode: Smart (Auto) USB Smart Mode DUT Wizard visibility: 1.
Page 728 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement Figure 29-18 DUT – Measurement Setup – Type [Multi-Stage Conv] Screen – ENR Mode: Smart (Auto) DUT – Measurement Setup – Type [Multi-Stage Conv] with External Amplifier (LNA) –...
Page 729 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement DUT Type and Frequency Context Noise figure enables you to define the frequency context for your noise figure measurements: — RF (DUT In): — Start — Stop — Center —...
Page 730 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement Frequency Context – RF (DUT In) The RF (DUT In) softkey can be used to define the DUT Type’s RF Start, Stop, Center, and Span frequencies. Refer to “Frequency Range and Frequency Context”...
Page 731 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement Frequency Context – IF (DUT Out) – Inactive for Type [Amplifier] The IF (DUT Out) softkey can be used to define the DUT Type’s IF Start, Stop, Center, and Span frequencies. Refer to “Frequency Range and Frequency Context”...
Page 732 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement DUT Type—Freq Context (IF or RF)—(Inactive for DUT Type [Amplifier]) Frequency context can be used to define the DUT Type’s RF Context IF (default) and RF values. Refer to “Frequency Range and Frequency Context”...
Page 733 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement Frequency Range and Frequency Context Set the range of frequencies over which you would like to make DUT type measurements and frequency context for noise measurements. When the frequency range is changed after a calibration is performed, the cal “Interpolation *”...
Page 734 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement Figure 29-22 DUT Type Loss Compensation For all of the DUT Types (Amplifier, Downconverter, Upconverter, and Multi-Stage Converter) the loss compensation, before the DUT (BeforeDUT) and after the DUT (AfterDUT) can be enabled or disabled for loss and for temperature.
Page 735 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement Setting DUT Loss Compensation Figure 29-23 DUT Loss Compensation DUT – Measurement Setup – Type [Amplifier], [Downconverter], [Upconverter], and [Multi-Stage Converter] Used for setting up loss compensation for a DUT –...
Page 736 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement Single / Continuous / Restart This setting determines whether the FieldFox measures continuously or only Single or Run / Hold +/- button is pressed. Use Hold / once each time the Single or to conserve battery power or to allow you to save or analyze a specific trace.
Page 737 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement Resolution Bandwidth (Res BW) Avoid setting the resolution bandwidth (Res BW) greater than the bandwidth of the measured DUT. In NF Mode, the Res BW settings increase the measurement speed and quality of a measured noise figure.
Page 738 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement Calculating Noise Figure Measurement Uncertainty The Noise Figure mode can calculate and display the uncertainty of the noise measurement, whether it is a Noise Figure, Noise Factor, or Noise Temperature measurement.
Page 739 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement sources in the measurement and in the user calibration. And, in the case of very low power output DUTs (<15 dB gain + noise figure), by using an isolator on the input of the preamplifier.
Page 740 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement Specifi Style (Spec Style): Following the GUM method for Type B evaluation of standard uncertainty described in Reference[1] , the uncertainty calculation takes into account not only the entered value of the reflection coefficient, but also the nature of this value.
Page 741 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement — Noise Source Reflection Coefficient, ENR Uncertainties, and ENR values: “Overview of Softkey Menus” on page 712 For this section, see also (Noise Source page 713) and “Using ENR Tables” on page 743.
Page 742 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement As in the case of the DUT, In addition to entering the magnitude reflection coefficient values, the uncertainty calculation takes into account the distribution ( Γ Distribution) and specified style (Spec Style) for the preamplifier reflection coefficient value.
Page 743 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement Using ENR Tables ENR tables are used to define the noise source(s) used in DUT measurements, receiver, and user calibration(s). Additionally, ENR tables are used along with DUT tables, preamplifier tables, and information collected during the Figure 29-24 measurement to compute the measurement uncertainty.
Page 744 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement Figure 29-24 Editing ENR Tables Uses existing ENR file format Refer https://www.keysight.com/us/en/a ssets/9018-01420/user-manuals/9 018-01420.pdf. 1. Three additional header fields (used for uncertainty calculations) —ENR Uncert Cov –Γ Spec Style –Γ...
Page 745 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement Preamplifier (*.amp) Files — Preamplifier (*.amp) files are saved to, and recalled from, the NoiseFigure\Preamp folder. If the folder does not already exist on a USB or SD card, it is created automatically before storing the file. —...
Page 746 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement Using Markers (Noise Figure) In addition to the features shown here, noise figure has many of the same marker features as other FieldFox modes. See also “All about Markers” on page 763.
Page 747: Calibration Wizard
Noise Figure Mode (Option 356) Calibration Wizard Calibration Wizard The Noise Figure mode has two types of calibration wizard softkeys: Receiver Cal and User Cal. A receiver calibration is required for a user calibration. On the Fieldfox, after you have completed a user calibration, the User Cal (User Cal) annotation overwrites the displayed Receiver Cal (Rcvr Cal) annotation.
Page 748 Noise Figure Mode (Option 356) Calibration Wizard independent of the receiver bandwidth from the receiver calibration. The receiver calibration has virtually no influence on the noise figure measurement, either with or without a user calibration. The receiver calibration only effects the gain measurement, and only when there is no user calibration.
Page 749 Noise Figure Mode (Option 356) Calibration Wizard Figure 29-27 DUT – Measurement Setup – Receiver Calibration Screen – ENR Mode: Smart (Auto) DUT – Measurement Setup – Receiver Calibration withOUT External Amplifier (LNA) – ENR Mode: Smart (Auto) USB Smart Mode DUT Wizard visibility: 1.
Page 750 Noise Figure Mode (Option 356) Calibration Wizard User Calibration (User Cal): Performing a user calibration is recommended only when the measurement setup includes a preamplifier. The user calibration is unnecessary for accurate measurements when no preamplifier is used. In general, a user calibration should be performed whenever a preamplifier is used in the noise figure measurement.
Page 751 Noise Figure Mode (Option 356) Calibration Wizard Figure 29-28 DUT – Measurement Setup – Run User Cal Screen – ENR Mode: Smart (Auto) DUT – Measurement Setup – Run User Cal with External Amplifier (LNA) – ENR Mode: Smart (Auto) USB Smart Mode DUT Wizard visibility: 1.
Page 752 Noise Figure Mode (Option 356) Calibration Wizard Optimizing Measurement Accuracy: — Both gain and noise figure measurement accuracy will be enhanced by using a noise source with as low a reflection coefficient as possible for the user calibration. — When the DUT output noise power is relatively low (i.e., the gain plus noise figure of the DUT is less than 15 dB), measurement accuracy may also be improved by using a low loss isolator on the preamplifier input.
Page 753: How To Use Auto-Integration
Noise Figure Mode (Option 356) How to use Auto-Integration How to use Auto-Integration For optimum speed and performance measurement results, it is recommended that auto-integration is used in all noise figure measurements. This section provides an example procedure for measuring a device using noise figures’...
Page 754 Noise Figure Mode (Option 356) How to use Auto-Integration these cases, since the jitter goal has not been reached, a jitter warning marker will appear on the data trace (unless disabled by the user), indicating that the jitter goal could not be achieved within the selected time constraint. Due to the stability of the FieldFox receiver with its internal reference switch and the design of the auto integration feature, it is possible to achieve a stable, accurate, low jitter measurement results even under challenging measurement...
Page 755 Noise Figure Mode (Option 356) How to use Auto-Integration ENR Table Edit/Save/Recall — — Edit ENR Table — Enter the serial number and model number of your noise source. If desired, enter other information (e.g., Options, Cal Date, etcetera). Enter a value using the numeric keypad, the arrows, or the rotary knob.
Page 756 Noise Figure Mode (Option 356) How to use Auto-Integration Figure 29-29 Example of Jitter Uncertainty (401 points)—with Uncertainty Bars Keysight N9915-90020 User’s Guide...
Page 757 Noise Figure Mode (Option 356) How to use Auto-Integration Figure 29-30 Example of Jitter Uncertainty (401 points)—without the Uncertainty Bars Keysight N9915-90020 User’s Guide...
Page 758 Noise Figure Mode (Option 356) How to use Auto-Integration Figure 29-31 shows an example of a noise figure visual Jitter Warning elements that can be enabled/disabled (i.e, blue circles around points where the jitter goal was exceeded). — Press to toggle Jitter Warning OFF ON (default = ON) Figure 29-31...
Page 759 Noise Figure Mode (Option 356) Other Features Available Other Features Available — Limit Lines - For information on using Limit Lines, refer to “All about Limit Lines” on page 778. — Display Lines - For information on using Limit Lines, refer to the SA “Display Line”...
Page 760 Noise Figure Mode (Option 356) Troubleshooting Troubleshooting Some measurements can result in invalid results (NaNs). In these cases the FieldFox’s Noise Figure Option 356 displays the following: — Red X on the NaN point — Marker readout displays: “–––” — SCPI will return its NaN representation (i.e., 9.91E+37) Figure 29-32 Example of an invalid measurement Keysight N9915-90020 User’s Guide...
Page 761 Keysight Handheld Analyzers N99xxC User’s Guide 30 Data Analysis Features The following features can be used after a measurement to analyze the results. In this Chapters “How to create Markers” on page 763 “How to move a Marker after it is created” on page 763 “About Delta Markers”...
Page 762 Data Analysis Features “About Math Operations” on page 795 “How to Use Scale Settings” on page 796 “Averaging (CAT, NA, Power Meter, Channel Scanner, and Pulse Measurement Modes Only)” on page 797 Keysight N9915-90020 User’s Guide...
Page 763: All About Markers
Data Analysis Features All about Markers All about Markers Markers move along the X-axis range of the measurement trace to provide a numerical readout of each measured data point. Markers also allow you to search for specific Y-axis values. A trace can contain up to six markers. The marker readout on the FieldFox screen displays X and Y-axis information for the current active marker ONLY.
Page 764 Data Analysis Features All about Markers Figure 30-1 Marker 2 is Active, marker 1 is NOT active. About Delta Markers A Delta marker provides X-and Y-axis readout information that is relative to a ‘reference’ marker. A Delta marker is created with a Δ (delta symbol) to distinguish it from the reference marker. All six markers can be a Delta marker pair.
Page 765 Data Analysis Features All about Markers How to Create a Delta Marker — Create a Normal marker and move it to the reference position. — Press Delta. The marker becomes the reference marker and fixed in its X-Axis position. Delta —...
Page 766 Data Analysis Features All about Markers How to display the Marker table 1. Press Marker. 2. Then More 3. Then Marker Table On Off. Coupled Markers (NA Mode) I/Q Analyzer (IQA) mode has coupled markers. but the behavior is different than the NA mode Coupled Markers behavior.
Page 767: Marker Colors
Data Analysis Features All about Markers How to create Uncoupled Markers Markers are coupled by default. To create markers that are NOT coupled (move independently on each trace): 1. Press Marker 2. Then More 3. Then Coupled Markers OFF Marker Colors As shown in the above image, in NA and CAT Modes, markers are the same color as the trace to which they are assigned.
Page 768: Marker Format
Data Analysis Features All about Markers How to move an IQ and SA mode marker between traces 1. With two or more traces present, press Marker and Enter to create a marker. The marker is created on the current Marker Trace selection (Default == 1). 2.
Page 769 Data Analysis Features All about Markers There are more trace formats available than marker formats. To display marker readouts in more formats than are shown here, change the trace format, then select Default. Learn how to change “Format” on page 100.
Page 770 Data Analysis Features All about Markers right to find the next occurrence of the Target value. When the marker reaches the end of the stimulus range, it “wraps around” and continues the search from the beginning of the stimulus range. —...
Page 771 Data Analysis Features All about Markers Figure 30-5 S11 of the same filter with same search criteria: -3 dB. The same values would result from a search criteria of approximately +30.4 After pressing Bandwidth, four markers are automatically created to find the first negative or positive bandpass over the displayed frequency range.
Page 772 Data Analysis Features All about Markers Peak Right — (Not IQA) Moves the active marker to the next data point to the right that meets the ‘Peak’ criteria. When no data points to the right meet the ‘Peak’ criteria, the marker does not move.
Page 773 Data Analysis Features All about Markers If your Markers are positioned and in Normal marker mode, no changes are made to the Mkr1 through Mkr4 settings. If your Markers are not previously positioned and in Normal marker mode, when you select the Mkr5 and Mkr6 maximum and minimum setting, your markers are set as follows: Normal —...
Page 774 Data Analysis Features All about Markers Figure 30-6 CAT Mode Mkr5 and Mkr6 Search Example What Is a ‘Peak’ You define what the FieldFox considers a “peak” by setting the Peak Threshold and Peak Excursion and for I/Q Analyzer Only Cont Peak Search. These two peak criteria settings are set individually for each trace and for each mode (CAT, SA, or NA).
Page 775 Data Analysis Features All about Markers — In IQA (Spectrum) and SA mode: More — Then ——Then Mkr Properties ——Then Peak Criteria — In IQA (Waveform) mode: — Then Mkr Properties Peak Criteria ——Then Peak Criteria After selecting for CAT, IQA, NA, or SA mode: ——Then select the following: ——Peak Threshold Minimum amplitude (dB).
Page 776 Data Analysis Features All about Markers Peak Excursion and Peak Threshold example—the settings for the trace in the following image are: ——Threshold: –10 dB ——Excursion: 1 dB ——Scale = 1 dB / Division. Peak A = Valid Peak (Above Threshold and Excursion Settings) Peak B = Invalid Peak (Below 1 dB Excursion Setting) Peak C = Invalid Peak (Below –10 dB Threshold Setting) Marker Functions...
Page 777 Data Analysis Features All about Markers The following applies to DTF Measurements ONLY: — More then: — Mkr->Start Distance The Start Distance of the measurement becomes the value of the active marker. Markers that would no longer appear on the screen are moved to the new Start Distance.
Page 778: All About Limit Lines
Data Analysis Features All about Limit Lines All about Limit Lines Limit lines are visual representations, drawn on the FieldFox screen, of the specified limits for a measurement. With this capability, you can easily compare measured data versus specifications. Optionally, you can enable an audible beep and display Pass or Fail information for each measurement.
Page 779 Data Analysis Features All about Limit Lines How to Create Fixed Limit Lines The following are Limit Options for Limit Lines in CAT, NA, NF, RTSA, and SA. But, RTSA mode has some exceptions: When using the Spectrogram measurement, Limit lines are only —...
Page 780 Data Analysis Features All about Limit Lines — Upper: ——All modes except RTSA: (Default) FAILS any measured data point ABOVE the line. ——RTSA mode: (Default) Draws visible “ears” going upward from any measured data point BELOW the line. — Lower: ——All modes except RTSA: FAILS any measured data point BELOW the line.
Page 781 Data Analysis Features All about Limit Lines The same is true for acquisition. When you expect to measure a different power level, instead of changing the Y-axis value of all of the fixed limits, simply change to relative limits. The limits will then remain a constant Y-axis distance from the acquisition.
Page 782 Data Analysis Features All about Limit Lines Figure 30-8 Build From Trace (1 of 2) 3. Use the arrows to select ON. 4. Use Offset to shift the limit line UP or DOWN. Learn how below. Figure 30-9 Build From Trace (2 of 2) Keysight N9915-90020 User’s Guide...
Page 783: Limit Options
Data Analysis Features All about Limit Lines Limit Options The following are Limit Options for Limit Lines in CAT, NA, NF, RTSA, and SA. But, RTSA mode has some exceptions: When using the Spectrogram measurement, Limit lines are only — available when the display Measurement Type for Spectrogram View used is: Overlay.
Page 784 Data Analysis Features All about Limit Lines — Enter a negative offset to shift the limit line DOWN, usually used with LOWER limits. — Margin Shifts the limit line up or down like an offset, but only virtually. The limit line does NOT appear to move.
Page 785 Data Analysis Features All about Limit Lines — Recall Limits Recalls a limit Line definition from the specified device (e.g., *.csv). Recall can recall both *.xml or *.csv limit file types. But, Save can only save limit files as *.xml. The Limit Line file must be closed before recalling that file.
Page 786 Data Analysis Features All about Limit Lines — When successful, the FieldFox displays a message similar to this: “Recalled [USBDISK]:\LimitLineExample.csv”. — If unsuccessful, the FieldFox displays a message similar to this: “212, Operation failed. Possible file content error.” For an example trace with limit lines, refer to Figure 30-11 on page 792.
Page 787 Data Analysis Features All about Limit Lines Table 30-1 Example: Limit Line Formatting (i.e., Not a Power Spectral Density (PSD) Measurement (i.e., no Field Strength units) , so no Bandwidth required) – (*.csv) (Sheet 1 of 2) Description of Limit Line Notes #Comments start with “#”...
Page 788 Data Analysis Features All about Limit Lines Table 30-1 Example: Limit Line Formatting (i.e., Not a Power Spectral Density (PSD) Measurement (i.e., no Field Strength units) , so no Bandwidth required) – (*.csv) (Continued) (Sheet 2 of 2) Description of Limit Line Notes Fixed/Relative Fixed...
Page 789 Data Analysis Features All about Limit Lines Figure 30-10 Example: Table Limit Line in Text Format (i.e., Not a Power Spectral Density (PSD) Measurement (i.e., no Field Strength units) , so no Bandwidth required) – (*.txt) 1. Field Strength units, dBµV/m, dBµA/m, V/m, A/m, dBm/m^2, W/m^2, W/cm^2, dBG, dBpT 2.
Page 790 Data Analysis Features All about Limit Lines Table 30-2 Example: Limit Line Formatting for Power Spectral Density (PSD) (i.e., Bandwidth required) (*.csv) – (Sheet 1 of 2) Description of Limit Line Notes #Comments start with “#” Any row that begins with # is ignored by the FieldFox.
Page 791 Data Analysis Features All about Limit Lines Table 30-2 Example: Limit Line Formatting for Power Spectral Density (PSD) (i.e., Bandwidth required) (*.csv) (Continued)– (Sheet 2 of 2) Description of Limit Line Notes 20000000000 –80 30000000000 –80 #Comment 2 (Example) Any row that begins with # is ignored by the FieldFox.
Page 792 Data Analysis Features All about Limit Lines Figure 30-11 Example: Recalled Limit Line Formatting LimitExample.csv Keysight N9915-90020 User’s Guide...
Page 793 Data Analysis Features All about Limit Lines Display Line (I/Q, NF, and SA Modes Only) A display line is a simple, horizontal line that can be placed at any amplitude level on the SA screen or set to any level in IQA. Use a display line as mental guide for visual feedback. A display line is similar to a Limit Line, except that no PASS/FAIL testing occurs.
Page 794: All About Trace Math
Data Analysis Features All about Trace Math All about Trace Math Trace Math is available in CAT (excluding DTF measurements), NA Mode, and FOPS (under USB Power Meter mode). Noise Figure (NF—Option 356) does not have trace math, but does have the ability to display data and memory traces.
Page 795: About Math Operations
Data Analysis Features All about Trace Math — Data – Mem D-M] Current measurement data is subtracted from the data in memory. — Data / Mem [D/M] Current measurement data is divided by the data in memory. — Math Off [Data] Displays trace data with NO math applied.
Page 796: All About Scale Settings
Data Analysis Features All about Scale Settings All about Scale Settings IMPORTANT! Some of the scale settings do not apply to all of the modes. How to Use Scale Settings Adjust the Y-axis scale to see the relevant portions of the data trace. The Y-axis is divided into 10 graticules.
Page 797 Data Analysis Features All about Scale Settings Averaging (CAT, NA, Power Meter, Channel Scanner, and Pulse Measurement Modes Only) Trace Averaging helps to smooth a trace to reduce the effects of random noise on a measurement. The FieldFox computes each data point based on the average of the same data point over several consecutive sweeps.
Page 798 Data Analysis Features All about Scale Settings — Pressing the Average Count will allow to set a count for averaging. Average Count settings: Minimum count == 1 and Maximum count == 10000 — Pressing the Average Timed will allow to set a time for averaging. Average Timed settings: Minimum time == 10 ms and Maximum time == 1000000s When the Average Timed softkey is disabled (Default), averaging behaves normally...
Page 799 Keysight Handheld Analyzers N99xxC User’s Guide 31 System Settings In this Chapter “Run/Hold” on page 801 “Preset” on page 801 “User Preset” on page 802 “Audio (Volume) Control” on page 803 “Display (Settings)” on page 803 “Display Brightness” on page 804 “Display Colors”...
Page 800 System Settings “Alpha Numeric Editing” on page 823 “File Saving Naming Options” on page 823 “Quick Save Editing” on page 823 “Group Save File Types Editing” on page 824 “CAT (Distance Units)” on page 825 “CAT/NA” on page 826 “SA” on page 826 “Discrete Colors Softkey Menu”...
Page 801: How To Perform A Single Sweep While In Hold
System Settings Run/Hold Run/Hold The Run/Hold key determines whether the FieldFox sweeps continuously or does NOT sweep, but holds the display results of the last sweep that was performed. Use Hold to conserve battery power or to allow you to save or analyze the results of a specific measurement sweep.
Page 802: How To Preset The Fieldfox
System Settings User Preset “What Is a ‘Peak’” on page 774) — Marker Peak Excursion and Threshold (see How to Preset the FieldFox 1. Press Preset. 2. Then choose one of the following: — Preset Returns ALL Modes to the factory default settings. —...
Page 803: Audio (Volume) Control
System Settings Audio (Volume) Control Mode Preset (User) — The settings for only the current mode are recalled from UserPreset.sta. Only the instrument settings are saved to UserPreset.sta. No trace data — or calibration data is saved. User Preset ON / OFF is saved as a Preference setting. Like all —...
Page 804: Display Brightness
System Settings Display (Settings) Display settings are persistent after a FieldFox shut down. Save the display settings as Preferences. Learn how in “Save and Reset Preferences” on page 816. Clean the transflective screen with gentle and minimal wiping using Isopropyl alcohol applied to a lint-free cloth. Display Brightness Change the brightness of the background.
Page 805: Trace Width
System Settings Display (Settings) Trace Width You can set width of all displayed traces on the FieldFox. This may allow better viewing or enhance the look of screen images. This setting can be saved with Preferences. How to set Trace Width 1.
Page 806: Utilities
System Settings Utilities Utilities FieldFox utilities settings will not survive a shut down. When your FieldFox is turned OFF, then back ON, these settings default to their factory settings. For information on the Phase Array Antenna and EMF Antennas softkeys, refer to Chapter 14, “5G Rapid Prototype Phased Array Antenna –...
Page 807 System Settings Utilities How to view and change the Frequency Extender (Freq Extnd) Settings The following are the only supported modes for the frequency extender feature: SA (Option 233), mixed analyzers, RTSA (Option 350), IQA (Option 351), OTA (Option 370/377/378), PAA (Option 360) modes, and VSA (via the Remote Server feature).
Page 808 System Settings Utilities The frequency extender heads are an external down converter that extends the FieldFox's range. The frequency extender head makes use of the FieldFox's source and uses USB port for power. The FieldFox support for the frequency extender head includes: —...
Page 809 System Settings Utilities 2. To select the frequency extender head, use the numeric keypad, arrows, or rotary knob to change the value. 3. Press Recall File to make the highlighted head the current selection. 4. Press Freq Extnd ON OFF to enable the frequency extender head.
Page 810 System Settings Utilities To select a setting/value to edit, use the numeric keypad, arrows, or rotary knob to change the value. Refer to Figure 31-4 on page 813. It is important to save any changes that are made to the Settings table. If the Setup Corr softkey is reset to Auto, it will recall the last "...Default.csv"...
Page 811 System Settings Utilities Figure 31-1 FieldFox with OML Downconverter Keysight N9915-90020 User’s Guide...
Page 812 System Settings Utilities Figure 31-2 FieldFox Frequency Converter High Sensitivity (ON: Narrow—Lowest Noise Floor—Displayed) Figure 31-3 FieldFox Frequency Extender Select Frequency Extender Head Keysight N9915-90020 User’s Guide...
Page 813 System Settings Utilities Figure 31-4 FieldFox Frequency Converter Corrections Table Figure 31-5 FieldFox Frequency Converter (Freq Extend) On And Corrections (eCorr) Enabled (SA mode shown; other compatible modes are similar.) Keysight N9915-90020 User’s Guide...
Page 814: Preferences
System Settings Preferences Figure 31-6 FieldFox Frequency Converter (Freq Extend) On And Corrections (eCorr) Enabled (RTSA mode shown; other compatible modes are similar.) Preferences FieldFox preferences are settings that survive a shut down. When your FieldFox is turned OFF, then back ON, these settings remain. All preference settings can be restored to their factory defaults.
Page 815 System Settings Preferences How to view and change Preference Quick Settings 1. Press System 7 > Preferences Preferences > 2. Press Next Page Previous Page to view all settings. 3. To change a setting: a. Use the arrows ( ) to highlight a setting. b.
Page 816: Save And Reset Preferences
System Settings Preferences Settings “Quick Save Editing” on page 823 “Group Save File Types Editing” on page 824 “CAT (Distance Units)” on page 825 “CAT/NA” on page 826 “SA” on page 826 “Discrete Colors Softkey Menu” on page 828 - Part of Preferences softkey menu.
Page 817: Battery Saver
System Settings Preferences How to select Global Settings: 1. Press System 7 > Preferences Preferences > 2. Then use arrow softkeys ( ) or the knob to select Global Settings 3. Then Edit for each of the following: — Language (see) —...
Page 818: Startup Mode
System Settings Preferences The FieldFox internal temps will run 2°C – 5°C cooler with the Battery Saver on (the temperature range is dependent on the ambient temp). How to set Battery Saver 1. Press System 7 > Preferences Preferences > 2.
Page 819: Startup Option
System Settings Preferences Startup Option The Startup Option setting determines the behavior of the FieldFox after a restart. An instrument can never power up for the first time in LAST. If line power to the instrument is interrupted, by any of the following, Last Power Off State may not work properly: –...
Page 820 System Settings Preferences — Night Vision — Outdoor Sun — Outdoor Dusk — Outdoor Clouds 4. Trace Width — Normal (default) — Wide Setting trace width to Wide, will result in slower trace refresh rates. 5. Brightness — 0 to 100% (80% default) 6.
Page 821 System Settings Preferences Date and Time Choose the Date and Time values (Date and Time, Time Format, Date Format, and Time Zone). See also “Date and Time, Format, and Time Zone Settings” on page 837. How to select Date and Time units: 1.
Page 822 System Settings Preferences — Off (default) — Internal — External — Display — On — Off — Lat/Lon Format — dddº mm’ ss.sss” — ddd.dddddddº — dddº mm.mmmmm’ — Brit. Natl. Grid — Then Done Edit (for each change in setting) Frequency Reference When Internal or External is selected, a search is made for satellites overhead.
Page 823: File Folders
System Settings Preferences automatically when Frequency Reference Source is set to GPS. Learn more in “Frequency Reference Source” on page 834. File folders When enabled, FieldFox uses the last selected Device and Folder location as the default device location after instrument power cycle. Before setting the preferences for the File Folders, you must select the Device and Folder locations.
Page 824 System Settings Preferences IMPORTANT! To avoid losing data, before using the Quick Save feature, verify that you have all of the correct data file types enabled for saving. 1. Press System 7 > Preferences Preferences then > 2. Press Next Page until is displayed.
Page 825 System Settings Preferences 4. Press Edit then 5. Press ’file type’ Data (.xxx) to enable/disable the data file type (default = Off). (e.g., Image (.png) ON OFF, CSV Data (.csv) ON OFF, etcetera). 6. Repeat steps through as required. 7. Press Done Edit to exit the current data type softkey menu.
Page 826 System Settings Preferences — Feet — Inches — TDR Sweep: — Cable (default and the most accurate) — Auto 3. Then Done Edit (after each change in setting) CAT/NA Choose the CAT/NA settings for SnP file save, default factory error corrections, “>...
Page 827 System Settings Preferences — None (Default) no added emphasis to the ADC Over Range warning on the screen. — Big Font + Beep – this option makes the ADC Over Range warning have a larger text which is accompanied by a Beeping sound to alert you of the ADC Over Range.
Page 828: System Configuration
System Settings Discrete Colors Softkey Menu Discrete Colors Softkey Menu The discrete colors softkey menu can be used to increase the choice of colors displayed from two to up to six colors, for easier measurement readings. Refer Figure 31-7. Figure 31-7 Display Example: Color Coded Bar Scale (x6 Colors) Using the Discrete Colors Softkey Menu 1.
Page 829 System Settings System Configuration 1. Insert the USB Flash Drive in the FieldFox. 2. Press System 7 > System Configuration Options (Licensing) > 3. Then Install Options The FieldFox reads, validates, then installs the options. 4. Press and hold the power button to shut down, then restart the FieldFox. How to Delete ALL Options Deleting individual options is NOT supported.
Page 830 System Settings System Configuration — Without Option 307, GPS is usable ONLY with an external GPS receiver that is shipped with Microsoft “Streets and Trips” and “AutoRoute”. The GPS receiver is NOT available from Keysight. Only the GPS USB receiver is used with the FieldFox.
Page 831 System Settings System Configuration Figure 31-8 GPS Display — The left portion of the screen displays satellites and the corresponding number on the adjacent Satellite Power chart. — The right portion of the screen displays Satellite Power Carrier to Noise (C/No) dBHz values on the tops of the satellite power chart.
Page 832 System Settings System Configuration — Ant: OK – antenna present and working. — Ant: OPEN – antenna is not drawing DC bias current. This could occur when an active antenna is not connected properly or the antenna does not require DC bias current.
Page 833 System Settings System Configuration Antenna Voltage — Choose from: 3.3V 5V — – Settable to: 3.5 VDC or 5 VDC. When the bias voltage is set to ON and when the GPS is set to Internal. This system was designed for an active antenna such as the Keysight N9910X-825 Saving Data with GPS Enabled GPS position and clock data are included when data is saved with the following files types: *.csv, *.SnP, State, State+Trace data save.
Page 834 System Settings System Configuration GNSS and GPS Freq Ref Source Settings For convenience, the GNSS Settings menu includes the Freq Ref Source softkey. 1. Press System > System Configuration GNSS (GPS+) Freq Ref Source > > [GPS] then 2. Choose one of the following: —...
Page 835: Variable Voltage Source (Opt. 309)
System Settings System Configuration — when Reference Source is set to Internal. — when the FieldFox resumes from Standby mode or shut down. Frequency Reference Status When switched to Ext or GPS, one of the following annotations appears in the lower-left corner of the screen: EXT R —...
Page 836: Security Level
System Settings System Configuration The voltage is output through an SMB (m) output connector located on the left-side panel. See the connector in “Left Side Panel” on page An optional SMB (f) to BNC (m) bias-tee power cable is available with Keysight part number: N9910X-713.
Page 837: Date And Time, Format, And Time Zone Settings
System Settings System Configuration 2. Then choose from the following: — None All frequency settings are visible. — High Frequency information is blanked from the following: — Display annotation — Softkeys — Marker display and marker table — Calibration properties —...
Page 838: Lan Settings
System Settings System Configuration How to MANUALLY set Date and Time, Format, and Time Zone Because of licensing security, the manual and GPS Sync methods to set Date and Time are restricted as follows: – Can be set backward no more than 5 hours at a time. –...
Page 839 System Settings System Configuration Table 31-1 LAN LEDs LAN LEDs When FieldFox is connected to the LAN, the flashing LAN LEDs have the following definitions: Green: Flashing indicates packets are being transferred. Yellow: — Flash, pause = 10 Mbit link speed —...
Page 840 System Settings System Configuration — Static IP Address - Enter the IP Address – including periods - in the format nnn.nnn.nnn.nnn For all FieldFoxes with firmware ≤A.08.18 and ≤A.09.50 FW, when using Static IP addresses: – Either a valid Static Gateway is required or 0.0.0.0. –...
Page 841 System Settings System Configuration FieldFox Package Installer The FieldFox Package Installer enables you to download new versions of firmware from either a USB memory or SD Card. Additionally, the Utility softkey enables you to backup user files or restore user files. How to run the Installer Before running the Installer to update your firmware, you might want to back up your user data.
Page 842: Service Diagnostics
System Settings Service Diagnostics 3. Press Cancel to exit without backing up your files and returning to the initial Installer menu. How to restore files “How to backup This procedure restores user files from a USB or SD card. See also files”...
Page 843: System Information
System Settings Service Diagnostics — The Service diagnostics menu is generally used to display service-related information. To access these menu items, press System 7 then Service Diagnostics. System Information The System information table shows important information about your FieldFox. The following is the most useful information: —...
Page 844 System Settings Service Diagnostics Erase User Data IMPORTANT! The process in this section erases all User Data from the FieldFox. Before proceeding, Keysight strongly recommends that you back up all of your User Data to an external storage device. refer to “How to backup files”...
Page 845 System Settings Understanding the Fan Controls Understanding the Fan Controls If the FieldFox displays a “Fan Stuck” or “Error: Internal Fan has stopped spinning”, to avoid incorrect measurements and possibly damaging your FieldFox, shut your FieldFox down and contact Keysight. Refer to “Contacting Keysight”...
Page 846 System Settings Understanding the Fan Controls Fan Error Messages The FieldFox displays fan error messages, when the fan is not functioning properly. Refer to Figure 31-11, Figure 31-12 on page 847, and Figure 31-13 on page 847. If the FieldFox displays a “FanStuck” or “Error: Internal Fan has stopped spinning”...
Page 847 System Settings Understanding the Fan Controls Figure 31-12 Persistent Fan Stuck Error Message Figure 31-13 Fan: Service Message Keysight N9915-90020 User’s Guide...
Page 848 System Settings Understanding the Fan Controls Keysight N9915-90020 User’s Guide...
Page 849: Using The Mini-Usb Port To Send Scpi Commands And Queries
Keysight Handheld Analyzers N99xxC User’s Guide 32 Using the Mini-USB Port to send SCPI Commands and Queries IMPORTANT! It is recommended that only USB certified cables are used with the FieldFox. In this Chapter “Mini-USB Connection to PC with IO Libraries” on page 849 Mini-USB Connection to PC with IO Libraries The FieldFox comes with a mini-USB port that can be used to connect to your PC’s standard USB 2.0 port.
Page 850 Using the Mini-USB Port to send SCPI Commands and Queries Mini-USB Connection to PC with IO Libraries Figure 32-1 Keysight Interactive IO Window Keysight N9915-90020 User’s Guide...
Page 851: File Management
Keysight Handheld Analyzers N99xxC User’s Guide 33 File Management The FieldFox can save any of the following types of files: — Current settings and calibration — Trace data (*.csv, *.S1P, *.S2P) — Picture of the FieldFox screen In addition, files can be saved to the internal memory, a USB Flash drive, or a standard SD card.
Page 852: Saving And Recalling Files
File Management Saving and Recalling Files Saving and Recalling Files FieldFox State files are intended to be recalled on the same instrument model on which they were saved. Sometimes you may able to recall them within model families. An error will result when trying to recall a state file that was saved on a different model family.
Page 853 File Management Saving and Recalling Files Insert only ONE USB flash drive in the FieldFox when saving or copying files. Saving MATLAB files If you have Option 351 I/Q Analyzer option, you can directly save your data as MATLAB files (*.mat). Refer to Chapter 11, “...
Page 854 File Management Saving and Recalling Files Figure 33-2 VSA Software MATLAB File Save How to use the FieldFox labeler The FieldFox labeler is used to edit or change the current filename. It is also used for many other labeling functions, such as creating a title, prefix, and “How to keyword to display on the FieldFox screen.
Page 855 File Management Saving and Recalling Files The preselected keywords (File, Site, and so forth) can be selected just like a single character. These keywords can also be edited. Learn more in “Edit Keywords” on page 862. Figure 33-3 The FieldFox labeler In the graphic above, the current filename is File_0.
Page 856 File Management Saving and Recalling Files — If the filename already exists, you are prompted to choose from the following: — Press to overwrite the existing file. Cancel — Press to return to edit the filename. Recall Files The FieldFox can recall State files, Trace + State files, and image files. State Files ALL FieldFox instrument settings for ALL Modes are saved and recalled in a *.sta file.
Page 857 File Management Saving and Recalling Files How to move a file 1. Press Save/Recall 9 2. Then Device to be copied from (i.e., Internal, SD, or USB). Refer to “Set File Type and Select Device” on page 857. 3. Then More Manage Files Select Files...
Page 858 File Management Saving and Recalling Files — Saves/Recalls/Moves (Copies) files to or from a USB Flash drive (not included) that is inserted in one of the USB connectors. Only the root folder is available. Insert only ONE USB Flash Drive in the FieldFox when saving or copying files.
Page 859 File Management Saving and Recalling Files Group — Saves a group of file types that have been selected in the Preferences menu. Learn more, see “Group Save File Types Editing” on page 824. — Data (S1P) / (S2P) Saves CAT and NA Mode trace data to an *.S1P or *.S2P file, depending on the active measurement.
Page 860 File Management Saving and Recalling Files > What Data Processing functions are included in saved SNP Data: In NA Mode, the data processing functions (such as trace math) that are included in the SNP data depends on a Preference setting. Click System, then Preferences, then Preferences, then scroll to NA, SNP File Save, then select from the following: Default...
Page 861 File Management Saving and Recalling Files Copy to Internal, Copy — Then select a device to copy the file to. Choose from to USB (must be inserted), or Copy to SD Card (must be inserted). Do Copy — to complete the file copy to the media/folder selected. Copy can be done to any FieldFox internal folder, standard SD folder, or USB storage device.
Page 862 File Management Saving and Recalling Files Manage Folders You can create new folders, delete old folders, and select the active folder to which files can be saved. The Parent folder [..] is listed when not in the root directory. Creating and Managing Folders 1.
Page 863 File Management Saving and Recalling Files How to edit keywords 1. Press Save/Recall 9 > More Edit Keywords > 2. Then Next Page Previous Page to view all keywords. — Use the arrows to select a keyword to edit. — When a keyword is selected, then press Edit. —...
Page 864 File Management Saving and Recalling Files “How to move the cursor” on page 855. — — “When the Prefix is complete” on page 865. — “How to enable/disable Auto Append (Number and Date)” on page 866. How to edit the Prefix and Suffix (Auto Append) If you want to edit a prefix on a finite set of files one time, refer to “Manage Files”...
Page 865 File Management Saving and Recalling Files ——Cancel to cancel edits and return to the previous menu. —— Done to save changes and return to previous softkey menu. Edit Number Suffix — – Sets the Auto Append number suffix formatting (e.g., “0001”).
Page 866 File Management Saving and Recalling Files How to enable/disable Auto Append (Number and Date) 1. Press Save/Recall 9 > More Prefix Suffix > 2. Then Auto Append — (default) to disable the Auto Append (number suffix) on subsequently saved files. The Edit Number Suffix softkey is grayed out (inactive).
Page 867: Press Printing
File Management Press Printing Press Printing The current screen or selected files can be printed using a PCL-compatible printer (like older HP Deskjet printer) connected to one of the FieldFox USB ports. Newer PCL3GUI photo and all-in-one printers are NOT supported. Measurements can also be printed using the FieldFox Data Link software.
Page 868 File Management Press Printing Keysight N9915-90020 User’s Guide...
Page 869: Working With The Lithium-Ion Battery
Keysight Handheld Analyzers N99xxC User’s Guide 34 Working with the Lithium-Ion Battery In this Chapter “Viewing the Battery Charge Status” on page 869 “Charging the Battery” on page 871 “Reconditioning Battery” on page 874 “Battery Care” on page 874 “Maximizing Battery Life” on page 874 “Lithium-Ion Battery Disposal”...
Page 870: Service Diagnostics-Battery Screen
Working with the Lithium-Ion Battery Viewing the Battery Charge Status Table 34-1 Front Panel Icons Icon Status Battery not charging with 84% battery life remaining. Battery fully charged. A fully charged battery MAY NOT read 100%. Service Diagnostics—Battery Screen The Battery screen displays the following information. To access the screen, select System then Service Diagnostics then Battery.
Page 871: Charging The Battery
Working with the Lithium-Ion Battery Charging the Battery The battery in your FieldFox will have either 4 or 5 LED segments. 5-segment Charge 4-segment Gauge Charge Remaining Gauge Remaining ≥80% ≥75% 5 segments 4 segments 4 segments 60% to 79% 3 segments 50%,to 74% 3 segments...
Page 872 Working with the Lithium-Ion Battery Charging the Battery Figure 34-1 AC/DC Adapter To charge a battery inside the FieldFox, insert the AC/DC adapter plug into the Power connector on the FieldFox side panel, then plug the adapter into an AC outlet.
Page 873 Working with the Lithium-Ion Battery Charging the Battery Using the External Battery Charger (N9910X–872) Read the safety information in “For the External Battery Charger (N9910X-872)” on page 881 Figure 34-2 External Battery Charger (N9910X-872) The external battery charger (N9910X–872), lets you charge a fully depleted battery in approximately three hours.
Page 874: Reconditioning Battery
Working with the Lithium-Ion Battery Reconditioning Battery Reconditioning Battery Reconditioning a battery can be performed ONLY with the External Battery Charger (N9910X–872). 1. Insert a battery into the left bay of the external charger. 2. Press the button labeled Push to Recalibrate Left Battery Bay 3.
Page 875: Lithium-Ion Battery Disposal
Regulations vary for different countries. Dispose of the battery in accordance with local regulations. Keysight Technologies, through Rechargeable Battery Recycling Corporation (RBRC), offers free and convenient battery recycling options in the U.S. and Canada.
Page 876 Working with the Lithium-Ion Battery Lithium-Ion Battery Disposal Keysight N9915-90020 User’s Guide...
Page 877: Safety Considerations
Keysight Handheld Analyzers N99xxC User’s Guide 35 Safety Considerations Keysight has designed and tested the FieldFox in accordance with IEC Publication 61010-1Safety Requirements for Electrical Equipment for Measurement, Control and Laboratory Use, and the FieldFox is supplied in a safe condition. The FieldFox is also designed for use in Installation Category II and pollution Degree 2 per IEC 61010-1.
Page 878 Safety Considerations For the FieldFox For the FieldFox No operator serviceable parts inside except for the lithium-ion battery. Refer servicing to qualified personnel. To prevent electrical shock do not remove covers. If this product is not used as specified, the protection provided by the equipment could be impaired.
Page 879 Safety Considerations For the FieldFox When performing a measurement, ensure that the right safety and performance ratings of the instrument and accessories are used. Do not expose the circuit or operate the instrument without its cover or while power is being supplied. Do not operate the instrument in any environment at risk of explosion.
Page 880 Safety Considerations For the AC/DC Adapter For the AC/DC Adapter Use only the designated AC/DC adapter supplied with the instrument. Use only the designated power cord supplied with the AC/DC adapter. Operated at an ambient temperature: 0 to 40°C; full power rating; derate linearly at a rate of 3 watts per degree C, from 90W at 40°C to 45W at 55°C, 30W at –20°C.
Page 881 Safety Considerations For the External Battery Charger (N9910X-872) AC/DC adapter has an auto–ranging line voltage input – be sure the supply voltage is within the specified range and voltage fluctuations do not to exceed 10 percent of the nominal su pply voltage.
Page 882: For The Battery
High Capacity Lithium Battery (N9910X-876) Lithium battery (High Capacity): N9910X-876 (battery Keysight part number: 1420-0937) is used to provide power to a family of portable microwave test instruments produced by Keysight Technologies. Be sure to follow these safety warnings: External battery, U.S.
Page 883 Safety Considerations For the Battery Do not solder directly onto the battery. Do not expose the battery to water or salt water, or allow the battery to get wet. Do not disassemble or modify the battery. The battery contains safety and protection devices, which if damaged, may cause the battery to generate heat, explode, or ignite.
Page 884 Safety Considerations For the Battery Standard Capacity Battery (N9910X-870) Lithium–ion batteries: — Must not be exposed to high temperatures (>70°C) or fire. — Must be kept away from children. — Must not be short circuited. — Must be replaced only with Keysight qualified Li–ion batteries. —...
Page 885 Safety Considerations For the Battery Do not discharge the battery using any device except the FieldFox or the external battery charger (N9910X–872). When the battery is used in a device other than those specified, it may damage the battery or reduce its life expectancy. If the device causes an abnormal current to flow, it may cause the battery to become hot, explode, or ignite and cause serious injury.
Page 886: Battery Protective Functions
Safety Considerations Battery Protective Functions Battery Protective Functions This section contains the following: — “Battery Protective Functions (N9910X-876)” — “Battery Protective Functions (N9910X-870)” on page 888 Battery Protective Functions (N9910X-876) The following protective functions are designed into the lithium-ion rechargeable battery system used in FieldFox. The protective functions can be divided between two categories: active and passive.
Page 887 Safety Considerations Battery Protective Functions Overtemperature Discharging: The system microcontroller prevents the battery from being discharged if the cell temperature exceeds 67C. Once the overtemperature discharging protection is tripped, the battery is automatically shut off which results in turning off the instrument as well. Passive Protection Reverse Charging: A reverse protection diode prevents against damage or lost data due to a reverse charge polarity applied to the battery terminals.
Page 888 Safety Considerations Battery Protective Functions Battery Protective Functions (N9910X-870) The following protective functions are designed into the lithium-ion rechargeable battery system used in FieldFox. The protective functions can be divided between two categories: active and passive. Active protection refers to the type of protection that depends on at least two or more protection devices working together to enable the protection Passive protection refers to the type of protection that is always enabled independent of any other protection device.
Page 889: Batteries: Safe Handling And Disposal
Safety Considerations Batteries: Safe Handling and Disposal Overtemperature Charging: The system microcontroller prevents the battery from being charged if the cell temperature exceeds 46C. Once the overtemperature charging protection is tripped, the cell temperature has to drop to or below 45C to reset the protection and permit charging. Overtemperature Discharging: The system microcontroller prevents the battery from being discharged if the cell temperature exceeds 65C.
Page 890: Environmental Requirements
Safety Considerations Environmental Requirements Environmental Requirements Refer to the FieldFox Specifications in Appendix B:, “Specifications/Data Sheet,” on page 905. Electrical Requirements The FieldFox allows you to use either the lithium-ion battery or the AC/DC adapter - both are included. Electrostatic Discharge (ESD) Precautions The FieldFox was constructed in an ESD protected environment.
Page 891 Safety Considerations FieldFox Markings This symbol marks the OFF position of the power line switch. This symbol indicates that the input power required is AC. This symbol indicates DC voltage This symbol indicates a three-phase alternating current. This symbol indicates Frame or chassis Terminal. The instruction documentation symbol.
Page 892 Safety Considerations FieldFox Markings Two person lift required. Canada EMC label. Interference-Causing Equipment Standard for industrial, scientific and medical (ISM) equipment. Matériel industriel, scientifique et médical (ISM). CE/ICES/ISM label. (Old mark for reference only.) This is a space saver label that combines three markings - CE with CAN ICES and ISM (see above) and ISM (see below).
Page 893: Battery Markings
Safety Considerations Battery Markings Battery Markings The table below lists the definitions of markings that may be on or with the product. Familiarize yourself with each marking and its meaning before operating the instrument. All labels and symbols may not apply to the instrument. The CE marking is a registered trademark of the European Community (if accompanied by a year, it is the year when the design was proven).
Page 894 Safety Considerations Battery Markings The UL Marks are registered certification marks of Underwriters Laboratories Inc. (UL). It means that UL has tested and evaluated representative samples of that product and determined that it meets UL's safety requirements. When accompanied by a 'C' and 'US', it indicates compliance to both Canadian and US requirements.
Page 895 Safety Considerations Battery Markings This symbol marks the standby position of the power line switch. This symbol marks the ON position of the power line switch. This symbol marks the OFF position of the power line switch. This symbol indicates the input power required is AC. This symbol indicates DC voltage.
Page 896: Packaging Markings
Safety Considerations Packaging Markings Packaging Markings Universal recycling symbol. This symbol indicates compliance with the China standard GB 18455–2001 as required by the China RoHS regulations for paper/fiberboard packaging. AC/DC Adapter Markings The table below lists the definitions of markings that may be on or with the product.
Page 897 Safety Considerations AC/DC Adapter Markings Korean Certification (KC) mark; includes the marking’s identifier code. GOST, Russia’s safety and EMC mark. AC (Alternating Current). Direct current (DC) equipment CAUTION, risk of danger, refer to safety information in manual. DC connector polarity Ingress Protection Code Operating instructions should be considered when operating the device.
Page 898 Safety Considerations AC/DC Adapter Markings India mark from the Bureau of Indian standards. IS 13252 is the equivalent India standard to IEC 60950-1. IRAM/S-mark is the safety mark for Argentina. The crossed out wheeled bin symbol indicates that separate collection for waste electric and electronic equipment (WEEE) is required, as obligated by the EU DIRECTIVE and other National legislation.
Page 899: Certification And Compliance Statements
Certification Keysight Technologies, Inc. certifies that this product met its published specifications at the time of shipment from the factory. Keysight Technologies, Inc. further certifies that its calibration measurements are traceable to the United States National Institute of Standards and Technology, to the extent allowed by the Institute's calibration facility, and to the calibration facilities of other International Standards Organization members.
Page 900 Safety Considerations Certification and Compliance Statements Manufacturer’s Declaration This product has been designed and tested in accordance with accepted industry standards, and has been supplied in a safe condition. The documentation contains information and warnings that must be followed by the user to ensure safe operation and to maintain the product in a safe condition.
Page 901: Acoustic Statement (European Machinery Directive)
Safety Considerations Certification and Compliance Statements Acoustic Statement (European Machinery Directive) Acoustic Noise Emission LpA <70 dB Operator position Normal operation position per ISO 7779 Keysight N9915-90020 User’s Guide...
Page 902 Safety Considerations Certification and Compliance Statements Keysight N9915-90020 User’s Guide...
Page 903 Proper connector care and connection techniques are critical for accurate and repeatable measurements. The following table contains for tips on connector care. Prior to making connections to your analyzer, carefully review the information about inspecting, cleaning, and gauging connectors. For course numbers about additional connector care instruction, contact Keysight Technologies.
Page 904 Connector Care Review Connector Care Table Connector Care Table Handling and Storage Do Not — Keep connections clean — Touch mating-plane surfaces — Extend sleeve or connector nut — Set connectors contact-end down — Use plastic end-caps during storage — Store connectors or adapters loose Visual Inspection Do Not —...
Page 905 Keysight Handheld Analyzers N99xxC User’s Guide Specifications/Data Sheet To ensure the highest accuracy and consistency, the FieldFox Specifications are now stored ONLY at: https://www.keysight.com/us/en/products/network-analyzers/fieldfox-hand held-rf-microwave-analyzers.html (Under Featured Resources section)
Page 906 Specifications/Data Sheet Keysight N9915-90020 User’s Guide...
Page 907: How Often Should Calibrate My Instrument
Keysight Handheld Analyzers N99xxC User’s Guide Instrument Calibration Over time, the active components in the FieldFox age and the performance may degrade or drift. To ensure that the FieldFox is performing to the published specifications, you should have an instrument calibration performed periodically.
Page 908: What Are My Choices Of Instrument Calibration
Instrument Calibration What Are My Choices of Instrument Calibration? What Are My Choices of Instrument Calibration? The following types of instrument calibration are available from Keysight Technologies service center: Includes the test data from the calibration and the Keysight Calibration certificate of calibration, stating the instrument has been calibrated and is operating within the published specifications.
Page 909 Keysight Handheld Analyzers N99xxC User’s Guide Korean Battery Safety Translation...
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Page 919 Keysight Handheld Analyzers N99xxC User’s Guide Russian Battery Safety Translation...
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Page 931 Keysight Handheld Analyzers N99xxC User’s Guide Keysight Software End-User Licensing Agreement (EULA)
Page 932 Keysight Software End-User Licensing Agreement (EULA) Keysight N9915-90020 User’s Guide...
Page 933 Keysight Software End-User Licensing Agreement (EULA) Keysight N9915-90020 User’s Guide...
Page 934 Keysight Software End-User Licensing Agreement (EULA) Keysight N9915-90020 User’s Guide...
Page 935 Index Numerics AM FM Tune & Listen , 174, AM/FM Metrics, error markings 1-port cable loss messages maximizing life measurements AM/FM Metrics, Option protective functions , 886, CAT mode safe handling 1-port cable loss, CAT AM/FM Metrics,error saver mode messages service diagnostics 1-Port Cable Trimming VVM Amplitude Alignment...
Page 936 Index 2-port insertion loss Option 366, Inteference EMI mode measurements Finder settings , 505, calibration Option 366, Manual AoA units , 505, DTF settings EMI Mode Units , 68, 80, 93, 117, 512, return loss measurements Option 390,Time Difference of Enhanced Response settings Arrival (TDoA)
Page 937 Index FoxTrot markers FreqMaskTrigger edit keywords date and time , 542, frequency edit, enable and disable the frequency context context, setting current prefix frequency range , 55, 155, external reference enter 227, 271, 272, 344, mode, DTF numeric values 345, range, NA mode make output power...
Page 938 Index input voltages and power, lithium-ion battery, measurement selection, maximum installing Mapping Mode insertion loss logging, data measurement selection, NA measurements Mode InstAlign measurement selection, OTA , 222, 291, 335, 356, installing battery Mode Magnitude Offset Interference Analyzer measurement selection, USB magnitude offset Interference Finder, Option antenna Mode...
Page 939 Index Pulse Generator Option 366, Manual Angle of Points SA mode , 210, 287, RTSA Arrival (AoA) points, EMI mode Option 366, Manual AoA points, RTSA mode , 151, 155, 267, 527, 547, 555, , 505, points, SA mode 512, , 210, temperature control Option 390, TDoA...
Page 940 Index reference marker save smoothing , 765, reference, external display setting as Source Control with USB frequency preferences Power Meter Reflection Mode file S-parameters remote server save and recalling files spectral emission mask resolution Save Preferences settings , 46, NA Mode Scale Settings Spectrogram Display , 294,...
Page 941 Index time zone values, multipliers time/date setting , 821, , 195, title, editing vector voltmeter , 805, top panel vector voltmeter, See VVM trace averaging, setting Velocity Factor , 57, , 71, Trace Display States verifying integrity of , 211, 287, calibration 335, trace display states...
Page 942 Index Keysight N9915-90020 User’s Guide...
Page 943 This information is subject to change without notice. 4-2024 © Keysight Technologies 201 July Edition www.keysight.com...

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