Keysight Technologies FieldFox B Series User Manual

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Keysight

B-Series FieldFox Analyzers

This manual provides documentation for the following

models:

N9913B, N9914B, N9915B, N9916B, N9917B, N9918B

N9933B, N9934B, N9935B, N9936B, N9937B, N9938B

N9950B, N9951B, N9952B, N9953B

N9960B, N9961B, N9962B, N9963B

This is the unabridged version of the abridged N9938-90003 User's

Guide that is available in printed format. The abridged User's Guide

can be found here:

https://www.keysight.com/us/en/assets/9018-04841/user-

manuals/9018-04841.pdf

User's Guide (Unabridged)

Table of Contents

Chapters

Summary of Contents for Keysight Technologies FieldFox B Series

Page 1 Keysight User's Guide (Unabridged) B-Series FieldFox Analyzers This manual provides documentation for the following models: N9913B, N9914B, N9915B, N9916B, N9917B, N9918B N9933B, N9934B, N9935B, N9936B, N9937B, N9938B N9950B, N9951B, N9952B, N9953B N9960B, N9961B, N9962B, N9963B This is the unabridged version of the abridged N9938-90003 User's Guide that is available in printed format.
Page 2 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. 2014-2022 technical data as defined by FAR Technology Licenses 2.101, pursuant to FAR 12.211 and...
Page 3 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 A12.3x and A.12.4x Firmware – Release B Series FieldFox For customers upgrading FieldFox firmware, the following is a list of changes from the previous release: — Added: EMI (Electromagnetic Interference) – Option 361 Measurement mode — CISPR (International Special Committee on Radio Interference) and Amplitude Probability —...
Page 5 Contacting Keysight Assistance with test and measurements needs and information on finding a local Keysight office are available http://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 ............25 Accessories .
Page 8 Sweep Time .............56 Output Power.
Page 9 Parameter Conversion ........... . 93 Receiver Measurements .
Page 10: Time Domain - Option
How to make Time Domain Gating settings ........123 Start, Stop, Center, and Span Gate Times .
Page 11 Field Strength Measurements ..........161 Using the Antenna/Cable Editor .
Page 12 How to select Spectrum Emission Mask (SEM) Measurement ....240 IQ Analysis (Requires Option 351 IQ Analyzer and Option 353 IQ Streaming, SA Mode Only) . . How to Select IQ Analysis .
Page 13 Playback Configuration ..........283 Manage Sessions .
Page 14 Input – (Trace Input for APD Measurements) ........331 About Electromagnetic Interference (EMI) Measurements.
Page 15 Screen Annotation ............438 How to Record a Data Log .
Page 16 In this Chapter: ............508 Connecting Using Remote Server .
Page 17 How to select a Sensor Type ..........547 Average / Peak .
Page 18 Triggering............. .577 Marker Settings .
Page 19 26. AM/FM Metrics (SA Only and Option 355) Using AM/FM Metrics............607 Overview of Measurement Types .
Page 20 How to create Markers ...........700 How to move a Marker after it is created .
Page 21 Display (Settings) ............729 Display Brightness .
Page 22 LAN Settings ............765 Power ON.
Page 23 For the FieldFox ............802 For the AC/DC Adapter .
Page 24 ............... . .844 F:.
Page 25 Keysight Handheld Analyzers N99xxB User’s Guide 1 Overview Models and Options Table 1-1 Models Model Max Freq Description (GHz) N9913B Vector Network Analyzer AND Spectrum RF Analyzer N9914B Vector Network Analyzer AND Spectrum RF Analyzer N9915B Vector Network Analyzer AND Spectrum Microwave Analyzer N9916B Vector Network Analyzer AND Spectrum Microwave Analyzer N9917B...
Page 26 Overview Accessories FieldFox Options: For a comprehensive list, view the FieldFox Configuration Guide at: https://www.keysight.com/us/en/assets/7018-06515/configuration-guides/ 5992-3701.pdf. 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 accessories—not included unless requested—are listed in Table 1-3.
Page 27 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 –This manual, included with shipment. — Quick Reference Guide – Printed copy with laminated pages for outdoor use included with shipment.
Page 28 Overview FieldFox Manuals, Software, and Supplemental Help Denotes a hazard. It calls attention to a procedure which, if not correctly performed or adhered to, could result in injury or loss of life. Do not proceed beyond a warning note until the indicated conditions are fully understood and met.
Page 29 Keysight Handheld Analyzers N99xxB 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 30 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 31 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 32 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 32, “File Management”, on page 777.
Page 33 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 34 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 35 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 36 Preparing for Initial Use of Your New FieldFox Avoid Overpowering the FieldFox 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 37 Preparing for Initial Use of Your New FieldFox Avoid Overpowering the FieldFox Very often, coaxial cables and antennas build up a static charge, which, if allowed to discharge by connecting to the FieldFox, may damage the instrument input circuitry. To avoid such damage, it is recommended to dissipate any static charges by temporarily attaching a short to the cable or antenna prior to attaching to the FieldFox.
Page 38 Preparing for Initial Use of Your New FieldFox Take the FieldFox Tour Take the FieldFox Tour Front Panel Keysight N9938-90006 User’s Guide...
Page 39 Preparing for Initial Use of Your New FieldFox Take the FieldFox Tour Caption Description Learn More: Power ON: press momentarily. “FieldFox ON/OFF STAND BY: with FieldFox power ON, press briefly. Settings” OFF: press and hold until the FieldFox shuts off (about 4 seconds). page 31 Not lit: FieldFox OFF, not charging “Power...
Page 40 Preparing for Initial Use of Your New FieldFox Take the FieldFox Tour Caption Description Learn More: Limit Sets limit lines for quick Pass/Fail judgment “All about Limit Lines” on page 715 Run/Hold Toggles between free Run and Hold/Single operation. “Run/Hol d”...
Page 41 Preparing for Initial Use of Your New FieldFox Take the FieldFox Tour Top Panel Caption Descriptions Learn More: Port 1 For CAT and NA measurements, use to make reflection measurements. “CAT Mode Settings” RF Output Maximum: ±50 VDC, +27 dBm RF on page 51 “NA Mode Settings”...
Page 42 Preparing for Initial Use of Your New FieldFox Take the FieldFox Tour Right Side Panel Connector Description Learn More: Ethernet cable connector to read trace data using the FieldFox Data Link “LAN Settings” on Software and connect to the FieldFox remotely. page 765 Download the latest version of the software at: www.keysight.com/find/fieldfoxsupport...
Page 43 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 166 DC Voltage Source for use with external DC Bias. “Variable Voltage Source (Opt.
Page 44 Preparing for Initial Use of Your New FieldFox Take the FieldFox Tour Screen Tour Caption Description Learn More: Title – write your own text here “Title” on page 730 Current Mode Run / Hold “Run/Hold” on page 726 Display Format Mode dependent Scale/division Mode dependent...
Page 45 Preparing for Initial Use of Your New FieldFox Take the FieldFox Tour Caption Description Learn More: Bandpass / Lowpass setting (Fault Meas) “DTF Measurement IF BW in NA Mode Settings” on page 66 Output Power Level (CAT and NA) “Output Power” on page 57 Measurement Stop Freq or Distance Mode dependent...
Page 46 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 47 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 48 Preparing for Initial Use of Your New FieldFox Connector Care Keysight N9938-90006 User’s Guide...
Page 49: Table Of Contents
Keysight Handheld Analyzers N99xxB 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 50 CAT (Cable and Antenna Test) Mode Procedures “Return Loss Measurements” on page 60 “1-Port Cable Loss Measurements” on page 60 “2-Port Insertion Loss Measurements” on page 62 See Also Chapter 8, “Calibration for NA, CAT, and VVM Modes”, on page 125 “All about Markers”...
Page 51: Measurement Selection
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 — Press Mode. — Then CAT/TDR. Measurement Selection How to select a CAT Mode Measurement Learn more about the following measurements in the Supplemental Online Help: http://na.support.keysight.com/fieldfox/help/SupHelp/FieldFox.htm...
Page 52: Quick Settings Table
CAT (Cable and Antenna Test) Mode CAT Mode Settings — Cable Loss (1-Port) 1-port reflection measurement that displays the loss of a transmission line. Learn more on page 60 — Insertion Loss (2-Port) 2-port transmission measurement that accurately displays the loss through a cable or other device in dB. Both ends of the cable must be connected to the FieldFox.
Page 53: Frequency Range
CAT (Cable and Antenna Test) Mode CAT Mode Settings — Full (Default setting) Only the Settings table is shown on the screen. The trace window is temporarily not shown — Left The Settings table is shown to the left of the trace window —...
Page 54: Averaging
CAT (Cable and Antenna Test) Mode CAT Mode Settings — Scale Manually enter a scale per division to view specific areas of the trace — 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 55: Smoothing
CAT (Cable and Antenna Test) Mode CAT Mode Settings How to set Trace Averaging — Press BW 2. — Then Average N where N is the current count setting. — Enter a value using the numeric keypad. Enter 1 for NO averaging. —...
Page 56: Resolution (Number Of Data Points)
CAT (Cable and Antenna Test) Mode CAT Mode Settings — Continuous Makes continuous sweeps. This is the typical setting when battery power is not critical. You can also use Run / Hold +/- to toggle between Single and Continuous. Resolution (Number of Data Points) Data points are individual measurements that are made and plotted across the X-axis to form a trace.
Page 57: Output Power
CAT (Cable and Antenna Test) Mode CAT Mode Settings — Press a multiplier key. Learn more in “Multiplier Abbreviations” on page 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. Generally, the high power setting is used when measuring passive, high-loss devices to place the signal farther from the noise floor.
Page 58: 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 59 CAT (Cable and Antenna Test) Mode CAT Mode Settings — The DTF measurement is made using the frequencies as determined by the DTF Frequency Mode setting. Learn more in “DTF Measurement Settings” on page Keysight N9938-90006 User’s Guide...
Page 60: Return Loss Measurements
CAT (Cable and Antenna Test) Mode Return Loss Measurements Return Loss Measurements Return loss can be thought of as the absolute value of the reflected power compared to the incident power. When measuring an OPEN or SHORT, all incident power is reflected and approximately 0 dB return loss is displayed.
Page 61 CAT (Cable and Antenna Test) Mode 1-Port Cable Loss Measurements A 2-port Insertion Loss measurement is usually more accurate than a 1-port Cable Loss measurement. However, to perform a 2-port Insertion Loss measurement, both ends of the cable must be connected to the FieldFox. In high-loss conditions, a Cable Loss measurement becomes ‘noisy’...
Page 62: 2-Port Insertion Loss Measurements
CAT (Cable and Antenna Test) Mode 2-Port Insertion Loss Measurements 14.Use Averaging to remove random noise from high-loss measurements. Press BW 2 then Average. The displayed trace shows the Cable Loss values in one direction through the cable. A Return Loss measurement would show the loss for both down the cable and back.
Page 63 Keysight Handheld Analyzers N99xxB 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 64 DTF (Distance to Fault) Measurements How to make DTF Measurements “Coupled Frequency” on page 68 “Cable (Correction) Specifications” on page 69 “Window Settings” on page 72 “DTF Units” on page 73 “Calculated DTF values” on page 73 “About Alias Faults” on page 73 Optional settings “All about Markers”...
Page 65 DTF (Distance to Fault) Measurements How to make DTF Measurements 9. Either press Edit/Save/Recall Cables then Recall Cable, or directly enter the Velocity Factor/Cable Loss of the DUT using the Velocity Factor and Cable Loss keys. 10. Connect the start end of the DUT to the FieldFox. 11.
Page 66 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 67 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 68: Coupled Frequency
DTF (Distance to Fault) Measurements DTF Measurement Settings — Bandpass (Default setting) The frequency range of a DTF measurement is set manually. Use Bandpass mode when the DUT contains a diplexer or other filtering device which does not pass some frequencies. Typically, you will set the frequency range of the measurement to the passband of the filter.
Page 69: Cable (Correction) Specifications
DTF (Distance to Fault) Measurements DTF Measurement Settings Cable (Correction) Specifications By default, the FieldFox does NOT correct DTF measurements to account for the inherent loss of a cable. However, to make more accurate DTF measurements, the Cable Loss and Velocity Factor values should be considered.
Page 70 DTF (Distance to Fault) Measurements DTF Measurement Settings — Press Meas Setup 4. — Then DTF Cable Specifications — 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 71 DTF (Distance to Fault) Measurements DTF Measurement Settings — Delete/Clear then: — Delete Row Remove the selected Freq/Loss pair from the table. — Clear All then Yes. Remove all Freq/Loss pairs from the table and resets header information — Press Done to close the Cable Editor.
Page 72: Window Settings
DTF (Distance to Fault) Measurements DTF Measurement Settings The center frequency for the measurement is determined from the calculated (Stop – Start) frequency values (seen on the second page of DTF Settings): Calculated Start = 2.0 MHz Calculated Stop = 3.598 GHz Center Freq = 1.80 GHz The Loss value for the measurement is interpolated from the Freq/Loss pairs at the Center Freq:...
Page 73: Dtf Units
DTF (Distance to Fault) Measurements DTF Measurement Settings DTF Units The DTF Units setting is available ONLY on the DTF Settings table. By default, X-axis units for DTF measurement settings are displayed in Meters. How to change DTF units — With a DTF measurement present, press Freq/Dist. —...
Page 74 DTF (Distance to Fault) Measurements DTF Measurement Settings Shorter stop distances (less than 10 meters) and a higher resolution (1001 points) will be more likely to result in Alias-free Range = Off. When the Alias-free Range = Off, the following procedure will help to determine if a response is true or an alias response: 1.
Page 75 Keysight Handheld Analyzers N99xxB 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 76 TDR (Time Domain Reflectometry) - Option 215 “Frequency Mode” on page 80 “Cable (Correction) Specifications” on page 81 “Window Settings” on page 84 “TDR Units” on page 85 “Calculated TDR values” on page 85 “About Alias Faults” on page 86 “How to Prevent Undersampling”...
Page 77: Tdr (Time Domain Reflectometry) - Option 215
TDR (Time Domain Reflectometry) - Option 215 9. Either press Edit/Save/Recall Cables then Recall Cable, or directly enter the Velocity Factor/Cable Loss of the DUT using the Velocity Factor and Cable Loss keys. 10. Connect the start end of the DUT to the FieldFox. 11.
Page 78: Tdr Measurement (Format)
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 79: Tdr Start And Stop Distance
TDR (Time Domain Reflectometry) - Option 215 TDR Measurement Settings — Press Dock Window 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 80: 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 81: 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 82 TDR (Time Domain Reflectometry) - Option 215 TDR Measurement Settings — Then DTF Cable Specifications — 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 83 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 —...
Page 84: 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 85: 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 86: 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 87: 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 88 TDR (Time Domain Reflectometry) - Option 215 TDR Measurement Settings Keysight N9938-90006 User’s Guide...
Page 89 Keysight Handheld Analyzers N99xxB User’s Guide 6 NA (Network Analyzer) Mode Learn more about NA Mode measurements in the FieldFox Supplemental Online Help: http://na.support.keysight.com/fieldfox/help/SupHelp/FieldFox.htm. In this Chapter “About S-parameters” on page 91 “Mixed-Mode S-Parameters” on page 92 “Parameter Conversion” on page 93 “Receiver Measurements”...
Page 90 NA (Network Analyzer) Mode “Port Extensions” on page 108 “Velocity Factor” on page 109 “Increase Dynamic Range” on page 112 See Also “Why and When to Calibrate” on page 126 “All about Markers” on page 700 “All about Limit Lines” on page 715 “All about Trace Math”...
Page 91: About S-Parameters
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 — Press Mode_. — Then NA. About S-parameters S-parameters (scattering parameters) are used to describe the way a device modifies a signal.
Page 92: 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 93: 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: http://na.support.keysight.com/fieldfox/help/SupHelp/FieldFox.htm How to make mixed-mode S-parameter measurements —...
Page 94: Receiver Measurements
NA (Network Analyzer) Mode NA Mode Settings ——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). —1/1/S The displayed S-parameter is converted to 1/S-parameter. Receiver Measurements In NA Mode ONLY, you can make unratioed, uncorrected receiver measurements.
Page 95: 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 96: Quick Settings
NA (Network Analyzer) Mode NA Mode Settings How to select a multi-trace configuration — Press Trace 6 — Then Num of Traces — 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 97: Calibration Settings
NA (Network Analyzer) Mode NA Mode Settings How to view and change Quick Settings — Press Meas Setup 4 — Then Settings. — Press Next Page Previous Page to view all settings. If these softkeys are NOT available, then all available settings fit on one page. —...
Page 98: 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: http://na.support.keysight.com/fieldfox/help/SupHelp/FieldFox.htm The marker on screen readout can be changed to formats other than the...
Page 99: 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 100: Magnitude Offset
NA (Network Analyzer) Mode NA Mode Settings How to set Scale — Press Scale / Amptd. — Then choose from the following method —Autoscale Automatically adjusts the Y-axis to comfortably fit the Minimum and Maximum amplitude of the trace on the screen. —Autoscale All Autoscales all of the traces on the screen, useful only for multi-trace configurations.
Page 101: Electrical Delay
NA (Network Analyzer) Mode NA Mode Settings —Then enter a positive or negative offset value in dB using the numeric keypad, the arrows, or the rotary knob. Press a multiplier key. Learn about multiplier abbreviations. — And/or press Slope - Offsets the data trace by a value that changes linearly with frequency.
Page 102: 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 103: If Bandwidth
NA (Network Analyzer) Mode NA Mode Settings —Point - Each data point is measured <n> times and averaged before going to the next data point. On subsequent sweeps, averaging restarts by measuring each data point again <n> times. The average counter is not updated because data is not displayed until all the averages have been applied.
Page 104: Single Or Continuous Measure
NA (Network Analyzer) Mode NA Mode Settings — Press Enter Single or Continuous Measure This setting determines whether the FieldFox sweeps continuously or only once each time the Single button is pressed. Use Single to conserve battery power or to allow you to save or analyze a specific measurement trace. This setting can be changed at any time without affecting calibration accuracy.
Page 105: Sweep Time
NA (Network Analyzer) Mode NA Mode Settings Sweep Time The fastest possible sweep time is always used as the default setting. Use the Min Swp Time setting to slow the sweep time when measuring long lengths of cable. Learn more at the FieldFox Supplemental Online Help: http://na.support.keysight.com/fieldfox/help/SupHelp/FieldFox.htm The actual sweep time is shown on the FieldFox screen.
Page 106 NA (Network Analyzer) Mode NA Mode Settings ——A sweep can NOT be initiated by an external signal while a sweep is in progress. ——A sweep can NOT be initiated by an external signal when in HOLD mode. Learn more about HOLD mode in. —...
Page 107: Output Power
NA (Network Analyzer) Mode NA Mode Settings trigger will revert to Internal trigger. This includes turning on a CAL that requires forward and reverse sweeps or displaying multiple parameters that would require forward and reverse sweeps. — If the FieldFox is in a state requiring two sweeps and the user selects point mode triggering, an error "Error: Point trigger not compatible with 2-port cal."...
Page 108: System Impedance (Z0)
NA (Network Analyzer) Mode NA Mode Settings — Low Sets output power to approximately –50 dBm, FLAT across the displayed FieldFox frequency span. — Man (default setting at -15 dBm) Set output power to an arbitrary value, FLAT across the displayed FieldFox frequency span. If flattened power can NOT be achieved, a warning message and beep occurs.
Page 109 NA (Network Analyzer) Mode NA Mode Settings — With S11 and S22 reflection measurements, the FieldFox doubles the port extension valued that you enter to account for the additional delay in the forward and reverse directions. — With S21 and S12 transmission measurements, the port 1 and port 2 extensions are added together.
Page 110 NA (Network Analyzer) Mode NA Mode Settings Velocity factor is the ratio of the velocity of wave propagation in a coaxial cable to the velocity of wave propagation in free space. This velocity depends on the relative permittivity of the cable dielectric (er). Velocity factor = 1/sqrt(er) VF = 0.66 corresponds to wave propagation through a polyethylene dielectric.
Page 111 NA (Network Analyzer) Mode NA Mode Settings — Font Size – Choose either Big or Super Big. Super Big marker readout #3 will cover some of the measurement grid. — Trace Settings - For each possible trace (1, 2, and 3) select from the following: —Measurement –...
Page 112 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 113 Keysight Handheld Analyzers N99xxB 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 114 Time Domain – Option 010 Gating Settings “Start, Stop, Center, and Span Gate Times” on page 123 “Gating Type” on page 123 Keysight N9938-90006 User’s Guide...
Page 115: Overview
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 116: 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 117: 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 118: 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 119: 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 — Then More — Then Transform Window — A settings table appears that allows you to navigate and select the following settings.
Page 120: 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 121: 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 — Then Transform — Then choose from: —...
Page 122 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 123: 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 — Then Gating — Then choose from: — Gating is being performed. —...
Page 124 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 125: Chapter 8, "Calibration For Na, Cat, And Vvm Modes
Keysight Handheld Analyzers N99xxB 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 126: Why And When To Calibrate
Calibration for NA, CAT, and VVM Modes See Also Learn How to Make 75 ohm Measurements at the FieldFox Supplemental Online Help: http://na.support.keysight.com/fieldfox/help/SupHelp/FieldFox.htm 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 127: Calready
Calibration for NA, CAT, and VVM Modes scope of this discussion. Although an OPEN standard is a precision component, simply leaving nothing connected at the end of a cable can be a reasonable substitute for an OPEN. — A LOAD standard absorbs almost ALL of the incident signal and very little signal is reflected back to the source.
Page 128 Calibration for NA, CAT, and VVM Modes 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 ” on page 134.
Page 129: Mechanical Cal
Calibration for NA, CAT, and VVM Modes 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 130 Calibration for NA, CAT, and VVM Modes 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 131: Ecal
Calibration for NA, CAT, and VVM Modes — 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 132 Calibration for NA, CAT, and VVM Modes 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 133 Calibration for NA, CAT, and VVM Modes — Connect the ECal module USB cable to the FieldFox USB. — Allow the module to warm up until it indicates READY. This may take several minutes. — Connect the ECal module ports to the FieldFox at the calibration reference plane (where the DUT will be connected).
Page 134: Simple Response Cals
Calibration for NA, CAT, and VVM Modes — 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 135 Calibration for NA, CAT, and VVM Modes 1-port response cals are also available from the Mechanical Cal menu. Learn more in “Calibration Type” on page 136. 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 136: View Cal
Calibration for NA, CAT, and VVM Modes View Cal From the Choose Calibration screen (see “How to Perform a Calibration” on page 127), 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 137 Calibration for NA, CAT, and VVM Modes 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 138 Calibration for NA, CAT, and VVM Modes Based on the SOLR/Unknown THRU calibration. For more information on the Unknown THRU process, see the FieldFox Supplemental Online Help: http://na.support.keysight.com/fieldfox/help/SupHelp/FieldFox.htm Sweeps in BOTH directions. FULL 2-Port (QSOLT) – Mechanical Cal ONLY (May require an option) Quicker to perform QSOLT than Full 2-port.
Page 139 Calibration for NA, CAT, and VVM Modes DUT: Non-Insertable or Insertable S-parameters Corrected: S11 or S22 Standards: OPEN or SHORT on ONE port Sweeps in BOTH directions. Isolation Step The optional isolation step of a calibration corrects for crosstalk which is the internal signal leakage between the test ports.
Page 140 Calibration for NA, CAT, and VVM Modes frequency range. Therefore, it is VERY IMPORTANT to set the frequency range of the measurement WITHIN the frequency range of the waveguide Cal Kit. Otherwise, an error message will appear during the ‘Calculating Steps’ portion of the calibration.
Page 141: Enhanced Response Optimization
Calibration for NA, CAT, and VVM Modes These settings are necessary ONLY when your measurement requires electrical delay or port extensions, or if using Time Domain Transform. — Press Meas Setup 4 — Then Transform — Then Transform Settings — Under Transform Stimulus Settings, set the Start and Stop frequencies to those of the Waveguide.
Page 142: Interpolation
Calibration for NA, CAT, and VVM Modes Interpolation * Highest measurement accuracy is achieved when the frequency range or resolution settings remain the same during the measurement as when the FieldFox was calibrated. If these settings change after performing a calibration, the FieldFox will interpolate the calibration so that VERY accurate measurements continue to be made.
Page 143 Calibration for NA, CAT, and VVM Modes measurement accuracy. Remember, CalReady was performed at the test ports. Therefore, a CalReady calibration is most accurate when the DUT is directly connected to the test ports. Learn more in “CalReady” on page 127.
Page 144: Apply Nearest (Na Mode Only)
Calibration for NA, CAT, and VVM Modes Verifying Calibration and Jumper Cable Integrity 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 145: Test The Jumper Cable
Calibration for NA, CAT, and VVM Modes Verifying Calibration and Jumper Cable Integrity — Because all LOAD standards have delay, you should see a small amount of phase rotation as a function of frequency. In general, the measurement result should agree with the characteristics of the calibration standard. Test the Jumper Cable With the LOAD standard still connected, move the jumper cable while observing the trace.
Page 146 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 147 Keysight Handheld Analyzers N99xxB 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).
Page 148 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 151 “Radio Standard” on page 153 “Channel Selection”...
Page 149 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) “Trace Display States (SA Mode)” on page 198 “Average Type” on page 199 “Average Count” on page 200 “Alignments” on page 201 “RF Burst Amplitude Alignment” on page 206 “Detection Method” on page 208 “Display Line”...
Page 150 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Optional Settings: “All about Markers” on page 700 “All about Limit Lines” on page 715 “Saving and Recalling Files” on page 778 Keysight N9938-90006 User’s Guide...
Page 151: Frequency Range
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 152 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings —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. The Frequency Span places half of the frequency range on either side of center.
Page 153: Radio Standard
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings How to change frequency step size When using the arrows to change any of the frequency settings, the size of the frequency step can be changed. — Press Freq/Dist — Then More —...
Page 154 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings How to select a Radio Standard — Press Measure 1 OR Freq/Dist then More — Then Radio Standard — Then Radio Standard — Then select a standard using the arrows or rotary knob and press Enter.
Page 155: Channel Selection
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Channel Selection After a Radio Standard has been selected, the frequency range can be changed by selecting channel numbers rather than frequency. Once enabled, the channel number is appended to the X-axis frequency range. How to Enable Channel selection —...
Page 156: Reverse Swap
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Select either Uplink or Downlink Frequencies Press Freq/Dist then More. Press Chan Direction to toggle between Uplink and Downlink. If either of these selections is not available, then the selected Radio Standard does not contain those frequencies.
Page 157: Scale And Units
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings — Press Freq/Dist then More. — Then Reverse Swap 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 158: External Gain
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings — External Gain Refer to “External Gain” on page 158. — 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). How to Set Y-axis Units The Unit setting appears for the reference line, marker readouts, and trigger level.
Page 159: 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 160: Preamplifier Control (Opt 235)
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA 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 22 dB. The gain of the preamp is NOT adjustable.
Page 161: 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 162 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings — Cable Off – Opens a softkey menu to enable/disable a cable and edit, save, create a new cable description table, recall, and set a storage device location. — More –...
Page 163: Using The Antenna/Cable Editor
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings — Save Antenna/Cable – Save the modified Antenna/Cable to a file on the specified Storage Device. — Recall Antenna/Cable – Read an existing Antenna/Cable file from the specified Storage Device. —...
Page 164 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings — Then Edit Antenna Edit Cable to open the Antenna / Cable Editor. (Antenna must be enabled to view a change in the antenna units.) — Then use the arrows to select a field. —...
Page 165 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings ——Clear All then Remove all Freq/Value pairs from the table and resets header information to default settings. When the table edits are complete — Press Done to close the Antenna/Cable Editor. —...
Page 166: Source Tracking Offset And Offset Reversal
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings 4. In SA mode, select Corrections, then recall the *.csv file for correction. Source Tracking Offset and Offset Reversal This feature requires: — N991xB and N995xB FieldFox Combination Analyzers to have Options 209, 210, and 233 —...
Page 167 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Figure 9-3 Tune & Listen ON In the graphic above, Tune & Listen ON with Tune Frequency is indicated by a vertical bar (highlighted). This section contains the following: “How to select Tune & Listen” on page 167 “TnL AM SSB Gain”...
Page 168 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings — Then choose a demodulation type. Select a setting based on the type of interfering signal you suspect is being broadcast. — Press Meas Setup 4 > Tnl Demod Type then —...
Page 169 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings 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 N9914B FieldFox). 2. Specify Tune Frequency: —...
Page 170: Analog Demod
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Audio Demod ON and OFF To quickly stop the audio demodulation and perform only the normal SA sweeps, select the following: — Press Meas Setup 4 > Audio Demod ON OFF >...
Page 171 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings The Analog Demod spectrum is displayed alongside the SA displayed trace. This enables you to listen and display a carrier frequency and it’s harmonics. The Analog Demod measurement displays a normal SA sweeps for the display while performing audio demodulation at the carrier Frequency.
Page 172 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings “Setting the Audio Capture Playback Softkeys” on page 175 “How to Set the Demod Filters” on page 177 “Setting the Marker Counter Gate Softkey” on page 178 How to select Analog Demod (Metrics) Analog demodulation can demodulate AM DSB, AM SSB, FM, FM Stereo / RDS, PM signals.
Page 173 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings — FM Stereo / RDS – Displayed values for FM Stereo / RDS (Radio Design System); (Metrics) – (i.e., includes Freq Deviation, FM Demod Waveform (Time)/Spectrum (Frequency), Carrier Power, Carrier Freq, Modulation Rate, SINAD, THD, Dist/ Total VRMS).
Page 174 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings — PM Top Y – Determines the Y axis phase (0 to 100 radians) of the PM demodulation waveform is displayed (Default = 5). For any of the following: AM DSB, AM SSB, FM, FM Stereo / RDS, or PM, choose from: Refer to Figure 9-5 on page...
Page 175 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings — AF Stop Freq – Sets the AF stop frequency for the AM or FM demodulated signal. — AF Full Span – Sets the AF full span frequency for the AM or FM demodulated signal.
Page 176 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings — Volume 0 – to enable disable volume and to adjust the volume from 0 to 100 (default = 50). — Load Audio File – to load a previously stored audio (.wave) file. —...
Page 177 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings How to Set the Demod Filters The demodulation (Demod) filters and de-emphasis options help you accurately recover and analyze the modulating signal. The demod filters apply to all demod types (AM DSB, AM SSB, FM, FM Stereo and PM), while the de-emphasis options only apply to the FM and FM stereo demod types.
Page 178 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings 2-Pole Butterworth HPF with 3 dB cutoff frequency 300 Hz of 300 Hz. 10-Pole Butterworth HPF with 3 dB cutoff 400 Hz frequency of 400 Hz. 5-Pole Butterworth HPF with a custom 3 dB cutoff Custom frequency (determined by the HPF 3 dB Cutoff setting).
Page 179 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Figure 9-5 AM DSB (Metrics) – Demodulation Waveform Figure 9-6 FM Metrics – Demodulation Spectrum Keysight N9938-90006 User’s Guide...
Page 180 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Figure 9-7 FM (Metrics) – Demodulation Waveform Figure 9-8 FM (Metrics) - Counter Gate and FM Demodulation Waveform Keysight N9938-90006 User’s Guide...
Page 181: 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, InstAlign and the battery saver features should be turned off. Refer to “How to Access Individual Alignments” on page 205 “Preferences”...
Page 182: Resolution Bandwidth (Res Bw)
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings annotated on the screen. Normalize is automatically turned OFF when the frequency range or Resolution is changed. Learn more about Trace Display States in “Trace Display States (SA Mode)” on page 198.
Page 183: Video Bandwidth (Video Bw)
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA 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. —Man Enter a Res BW value using the numeric keypad, the arrows,...
Page 184: Af Rbw (Audio-Frequency Resolution Bw)
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings AF RBW (Audio-Frequency Resolution BW) AF RBW - sets the audio-frequency resolution bandwidth for the selected frequency (Default = Auto). How to set AF RBW — Press BW 2 AF RBW >...
Page 185: If Output
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings —Step The FieldFox uses Step sweep type regardless of the Res BW. This is useful for capturing impulsive noise that may be generated from nearby electrical equipment. Oversweep In SA mode, the FieldFox uses Oversweep to quickly analyze input signals. Oversweep is meant to verify that your setup is correct, but Oversweep is not meant to be as accurate as FFT and Step sweeps.
Page 186 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Figure 9-9 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. Learn more about Zero Span in “Zero Span Measurements”...
Page 187 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Figure 9-10 SA Display Wide BW IF Out - Center Frequency 4 GHz (Requires Option B10) Keysight N9938-90006 User’s Guide...
Page 188: Sweep Acquisition
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Figure 9-11 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 189 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Figure 9-12 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 = 218Hz, Duty Cycle = 12.5%. The pulsed signal becomes visible on every sweep update with SwpAcquisition = 50.
Page 190: 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 191 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Figure 9-13 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 192: Triggering
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Triggering External, Video, and RF Burst triggering allows you to initiate an SA mode sweep using an external event such as a signal burst. All three trigger types can be used in either Zero Span (time domain) or FFT frequency sweeps.
Page 193 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings — External A sweep is triggered on an external TTL signal at the Ref In/Trig In connector on the FieldFox top panel. Choose to trigger on the rising slope at about 1.7 V or on the falling slope at about 1.0 V using the Trigger Slope setting (below).
Page 194 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings In Zero span, you can use Trigger Position as an easy way to set Trigger Delay by positioning the trigger event on the FieldFox screen. See “Triggering” on page 192. Period This softkey is ONLY available when Trigger Type is set to Periodic.
Page 195 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Auto Trigger Time While waiting for a valid trigger signal, Wait is annotated in the top left corner of the FieldFox screen. If a valid trigger signal is not received before the specified Auto Trig Time, a sweep will occur automatically.
Page 196: 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 197 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 trigger in “Auto Trigger Time” on page 195.
Page 198: 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 once each time the Single or Run / Hold +/- button is pressed. Use Hold / Single or to conserve battery power or to allow you to save or analyze a specific trace.
Page 199: Average Type
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings A color-coded legend for displayed traces is visible in the left pane of the SA mode screen: W = Clear/Write; M = MaxHold; m = MinHold; A = Average; V = View How to display the Trace States —...
Page 200: Average Count
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings — Noise Marker Averaging - Learn more in “Noise Marker” on page 211. — Video BW filtering (for non-Zero Span measurements) - Learn more in “Video Bandwidth (Video BW)” on page 183.
Page 201: Alignments
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings — Enter a value from 1 to 10,000 using the numeric keypad, the arrows, or the rotary knob. — Press Enter Alignments This section contains the following: — “Overview” on page 201 —...
Page 202 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings — RF Burst Amplitude Alignment RTSA: — InstAlign Amplitude Alignment — WidePath Burst Trigger Alignment — Channel Equalization Channel Scanner: — InstAlign Amplitude Alignment EMI Measurements: — InstAlign Amplitude Alignment —...
Page 203 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings The individual alignments may be: — Coupled (default) - when they are in the same state, or — Uncoupled - when at least one of them is in a different state than the other ones —...
Page 204 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings How to set All Alignment and Align All Now — Press Cal 5 — Then All Alignment [Auto] (to enable or disable the All Alignment) – Default is Auto. — or —...
Page 205 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 206: Rf Burst Amplitude Alignment
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Some examples of the conditions when alignments occur are: This could be a Center frequency change, or it could be as simple as requesting a Single sweep. Also, unique alignments are required at different FieldFox receiver frequency bands, so even if the temperature hasn't changed, an alignment may be required when one changes the Center frequency.
Page 207 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings — Then Burst Alignment — Then choose from the following: — 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 208: Detection Method
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings change in temperature or a significant time elapsed from the last update. The temperature change and time duration necessary to trigger an alignment update is predetermined in the factory. Some examples of the conditions when alignments occur are: This could be a Center frequency change, or it could be as simple as requesting a Single sweep.
Page 209 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Figure 9-14 Detection using One Bucket In the graphic above there is one bucket showing Positive peak, Sample, and Negative peak Detection methods. How to set Detection Method The current Detection method is labeled on the left edge of the screen. When a method is selected manually, a # precedes the label.
Page 210: Display Line
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings —Sample [#Smp] Displays the center measurement of all the measurements in each bucket. This setting gives a good representation of the random noise in each bucket. However, it does not ensure that all signals are represented. —Average [#RMS] Displays the Root Mean Squared (RMS) average power of all the measurements in each bucket.
Page 211: Noise Marker
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings 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. A Noise Marker, unique to SA Mode, mathematically calculates the noise measurement as though it were made using a 1 Hz bandwidth.
Page 212: Frequency Counter At Marker
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings If the Detection method and Averaging type are set to Auto when you enable a Band/Interval Power marker, the Detection method will change to Average (RMS) and Averaging type will change to Power average. Other Detection methods or Averaging type settings will usually cause measurement inaccuracy.
Page 213: Audio Beep At Marker Power
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings How to use Frequency Counter — Press Marker. — Press Normal, Delta, or Peak, or select an existing marker to use as a frequency counter. — Locate the marker somewhere on a CW signal. It does NOT have to be on the peak.
Page 214: Meas Uncal Error
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Audio Beep can be used with any marker type or function, including Band/Interval Power. Learn more in “Audio” on page 745. How to use Audio Beep — Press Marker — Optionally, press Marker 1 2 3 4 5 6 to select an existing marker to use with Audio Beep.
Page 215: Radio Standards And Channel Measurements
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Channel Measurements Channel Measurements The following Channel Measurements are offered in SA Mode: Channel Power “Channel Power (CHP)” on page 216 Occupied Bandwidth “Occupied Bandwidth” on page 218 Adjacent Channel Power Ratio “Adjacent Channel Power Ratio (ACPR)” on page 220 Radio Standards and Channel Measurements To tune the frequency range of any of the Channel Measurements using...
Page 216: Traces
SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Channel Measurements — Averaging Type is set to Power. — Trace State is set to Average. — Detector is set to Average. — Count is set to 15. Any of these settings can be changed manually during a Channel measurement.
Page 217 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Channel Measurements Figure 9-16 Channel Power Measurement The following two Channel Power levels are displayed: — Channel Power - measures total power over the specified Integrated BW. — Power Spectral Density – same measured power, but mathematically normalized to a 1 Hz bandwidth using the same algorithm as Noise Marker.
Page 218 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Channel Measurements By default, the displayed frequency span is automatically coupled to the Integration Bandwidth. As you change the Integration Bandwidth, the frequency span is adjusted so that the vertical posts appear to NOT move. However, when you manually change the frequency span, the Integration Bandwidth is no longer coupled to the frequency span.
Page 219 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Channel Measurements Figure 9-17 Occupied Bandwidth Measurement The graphic above shows an OBW measurement; Chan 190 Downlink; GSM850 Radio Standard How to Select Occupied Bandwidth — Press Measure__1 — Then Channel Measurements — 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 220 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Channel Measurements — Then 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 221 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Channel Measurements Figure 9-18 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 222 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 223 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Channel Measurements How to set limits for adjacent channels You can set a unique threshold power for each of the offsets that will cause a FAIL indication (RED bar). This occurs when the calculated dBc power (on top of the offset bar) is ABOVE the specified level.
Page 224 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Channel Measurements —Then enter a value to be used to reference the data using the numeric keypad, arrows, or the rotary knob. Other ACPR Settings All relevant FieldFox settings are made automatically to ensure the highest accuracy, such as ResBW, VideoBW, and sweep (SwpAcquisition) speed.
Page 225 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Channel Measurements — Enter a value between 0 (no smoothing) and 1 (most smoothing) using the numeric keypad, arrows, or the rotary knob. A standard level of filtering is 22. — Press Enter. Keysight N9938-90006 User’s Guide...
Page 226: 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 USB antenna’s axes must be set up manually.
Page 227 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 Features” on page 227 — EMF Setup Procedure EMF Features EMF has the following features: EMF Measurement Results: —...
Page 228 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 9-20 Example of EMF with Triaxial Antenna Keysight N9938-90006 User’s Guide...
Page 229 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 USB 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 TriAxial XYZ).
Page 230 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 Back > Back to exit the USB Antenna softkey menu. 4. Modifying the EMF settings: Press Meas Setup 4 —...
Page 231 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)) — Amp Corr Select [Triaxial XYZ] - then choose one of the following: — Default Receiver side only antenna measurements.
Page 232 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)) – Choose to exit the cable data edit table view — Save Cable Opens a menu to name and save the cable corrections data —...
Page 233 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)) — Recall Antenna – to recall a stored X antenna factor. See also Chapter 30, “System Settings.” —...
Page 234 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)) Refer to next step for details on editing the antenna Settings table. b. Use the arrows, the rotary knob, or numeric keypad to select the table cell value to be edited (i.e., the Frequency Interpolation value is not editable).
Page 235 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 9-22 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 236 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 9-22).
Page 237 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 238: 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 239 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 9-24 SEM Example Keysight N9938-90006 User’s Guide...
Page 240 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Spectrum Emission Mask (SEM) — (SA Mode Only) Figure 9-25 SEM Example FAIL Data - Absolute Limit (Blue), Relative Limit (Violet), Trace (Yellow), and Tabular Data How to select Spectrum Emission Mask (SEM) Measurement —...
Page 241 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Spectrum Emission Mask (SEM) — (SA Mode Only) Measurement Type (Meas Type) enables the user to select the method used to calculate the reference power level. The displayed green power (dBm)/frequency (Hz) text changes as the Meas Type is toggled.
Page 242 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Spectrum Emission Mask (SEM) — (SA Mode Only) — Ofst Enable Enables/disables the currently selected Frequency Start/Stop Offset values. — Ofst Freq Start Sets the offset frequency start value. (Default/Maximum = Value varies with model and options, Minimum = 0 Hz).
Page 243 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Spectrum Emission Mask (SEM) — (SA Mode Only) — More - optional to set Radio Standard controls. Refer to “Radio Standard” on page 153. 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.
Page 244 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Spectrum Emission Mask (SEM) — (SA Mode Only) — Abs AND Rel - Requires a relative and an absolute data failure to generate a fail message. 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 245 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) IQ Analysis (Requires Option 351 IQ Analyzer and Option 353 IQ Streaming, SA Mode Only) IQ Analysis (Requires Option 351 IQ Analyzer and Option 353 IQ Streaming, SA Mode Only) This feature’s intended use is that the Streamed data will be sent to another computer.
Page 246 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) IQ Analysis (Requires Option 351 IQ Analyzer and Option 353 IQ Streaming, SA Mode Only) How to Setup IQ Analysis General General setup for IQ Analysis: 1. Press Meas Setup 4 > IQ Analysis >...
Page 247 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) IQ Analysis (Requires Option 351 IQ Analyzer and Option 353 IQ Streaming, SA Mode Only) a. 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 248: 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) — Press Measure 1 — Then Channel Measurements >...
Page 249 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 250 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) Effective Isotropic Radiated Power (EIRP) – (SA Mode Only) Keysight N9938-90006 User’s Guide...
Page 251 Keysight Handheld Analyzers N99xxB 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 252 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 N9938-90006 User’s Guide...
Page 253 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 In this Chapter: “Frequency Range” on page 254 “Scale and Units” on page 256 “External Gain” on page 256 “Attenuation Control” on page 257 “Preamplifier Control (Opt 235)” on page 258 “Check for Compressed Measurements” on page 258 “Resolution Bandwidth (Res BW)”...
Page 254: Frequency Range
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 255 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 256: 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 257: 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 258: Preamplifier Control (Opt 235)
RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings — RF Attenuation is set manually. Enter a value between 0 to 40 dB in 5 dB steps using the numeric keypad, the arrows, or the rotary knob. Then press Enter. #Atten xx dB is shown at the top of the screen.
Page 259 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings Spectrum Selection Density Spectrum and Spectrogram data is lost when you change modes, because the FieldFox optimizes the instrument’s resources during mode changes. To select the spectrum-type for your measurement: How to make Spectrum Settings —...
Page 260 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 N9938-90006 User’s Guide...
Page 261 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 N9938-90006 User’s Guide...
Page 262 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings Figure 10-6 Real-time Spectrum Keysight N9938-90006 User’s Guide...
Page 263: Resolution Bandwidth (Res Bw)
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).
Page 264: Triggering
RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings — Enter a Res BW value using the numeric keypad, the arrows, or the rotary knob. Then press a multiplier if necessary or press Enter The current Res BW setting is shown at the bottom of the screen. #Res BW x.xx XHz (#) means manual setting.
Page 265 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 domain, before conversion to frequency domain. Refer to “Trigger Slope”, “Trigger...
Page 266 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings — Then Trigger Settings — 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 267: 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 268: Points (Not User Settable)
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 269: Trace Display States (Rtsa)
RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings Trace Display States (RTSA) You can use the FieldFox’s Remote Server mode (89600 VSA software connectivity) to parse playback files and captured data as MATLAB files (*.mat). Learn more about FieldFox and 89600 VSA software, refer to Chapter 17, “Remote Server Mode (Requires SA Hardware/SA Option 233)”...
Page 270: Detection Method
RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings — Press Default All to return all traces to their default settings: Trace 1 (Clear/Write); all other traces, including trace detectors (Blank). Detection Method In RTSA Mode, the X-axis is comprised of data points, also known as “buckets”. Learn more in “Points (not user settable)”...
Page 271: Average Count, Show Density, Blue, And Red Percentage Limits
RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings —Sample [S] Displays the center measurement of all the measurements in each bucket. This setting gives a good representation of the random noise in each bucket. However, it does not ensure that all signals are represented.
Page 272: 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 described in “Trace Display States (RTSA)” on page 269. (But, also applies to the MaxHold or MinHold trace states.) In the RMS Average Trace State, the Average Count setting determines the number of sweeps to average.
Page 273 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 RTSA Mode Settings Figure 10-7 Display Line with Annotations How to create and move a Display Line — Press Limit __8 — Then Display Line OFF ON — Then enter a Y-axis value using the arrows or the rotary knob, then press Enter.
Page 274: 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 275 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 276: 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 279 Record/Playback is only available in Density Spectrum and Real-time Spectrum measurements.
Page 277 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 settings. Learn more in “Recording Configuration” on page 281.
Page 278 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 279 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 280 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 Record/Playback (RTSA Option) — New Session — Recall Session then Open and select a session. — Then Recorder Player — Then Record is displayed in the left of screen graticules. During recording, choose from the following: —...
Page 281 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 Record/Playback (RTSA Option) — Playback State/Tag Allows you to continue playback from a state tag, or scroll through the state tags. Enter a value between 1 and the total number of state tags using the numeric keypad, arrows, or the rotary knob.
Page 282 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 Record/Playback (RTSA Option) — Record Interval Sets the amount of time to wait between individual trace recordings. Default is MIN, which is to wait 0 seconds (record traces as fast as possible). Enter a value in seconds between 0 (no delay) and 10,000 seconds - about 3 hrs) using the numeric keypad, arrows, or the rotary knob.
Page 283 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 Record/Playback (RTSA Option) — Data is ALWAYS played back into the same trace number that was recorded. If four traces were active during the recording, but only one trace was recorded, then during Playback only that one recorded trace is visible. Playback Configuration By default, trace sweeps are played back as fast as the trace can be drawn on the screen.
Page 284 RTSA (Real-time Spectrum Analyzer) Mode—Option 350 Record/Playback (RTSA Option) — Rename Using the FieldFox labeler, change the name of the session. AutoSession (n) is the default name where (n) is the next-available number. Learn more in “How to use the FieldFox labeler ” on page 780.
Page 285 Keysight Handheld Analyzers N99xxB 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 286 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 N9938-90006 User’s Guide...
Page 287 IQ Analyzer (IQA) – Option 351 In this Chapter “About I/Q Analyzer (IQA) Measurements” on page 289 “I/Q Analyzer (IQA) Mode Settings” on page 290 “How to Make Measurements Using the I/Q Analyzer Mode” on — page 290 “How to Capture I/Q Data to a File” on page 291 —...
Page 288 IQ Analyzer (IQA) – Option 351 Also “Why and When to Calibrate” on page 126 “All about Markers” on page 700 “All about Limit Lines” on page 715 “All about Trace Math” on page 720 Chapter 29, “Data Analysis Features.” Chapter 32, “File Management.”...
Page 289 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 290 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 291 IQ Analyzer (IQA) – Option 351 I/Q Analyzer (IQA) Mode Settings — Log magnitude of the spectrum of the I/Q data versus frequency — Log magnitude of the I/Q data (RF Envelope) versus time — The real component of the I/Q data versus time —...
Page 292 IQ Analyzer (IQA) – Option 351 I/Q Analyzer (IQA) Mode Settings If you do not have an external device connected and attempt to save your data, a warning message is displayed: "Warning: Only an external storage device can be used in multiple file mode."...
Page 293 IQ Analyzer (IQA) – Option 351 I/Q Analyzer (IQA) Mode Settings Each time you press the Start softkey the I/Q data writes to the current filename (i.e., Single capture default is IQDataFile.csv or for Multiple format is IQDataFile_yyyymmdd hh.mm.ss.ffff.csv). To avoid overwriting your Single capture data or to add a unique filename for Single or Multiple capture data, use the Measure 1 >...
Page 294: Adjusting The Bandwidth Settings
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 295 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 296: Changing Between The Continuous And Single Captures And Adjusting The Trigger Settings
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 297 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 298 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 299: Adjusting The Measurement Setup Settings
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 300: Adjusting The Trace Settings
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 301: Adjusting The Frequency Settings
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 302 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 303 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 304: Preamplifier Control (Opt 235)
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 305 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 700. 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 306 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. Learn more about regular markers in “All about Markers” on page 700.
Page 307 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 308 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 309 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 310 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 201 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 311 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 299. —Average Each data point is averaged over multiple acquisitions as set by the Average Count setting.
Page 312 IQ Analyzer (IQA) – Option 351 Other Features Available Other Features Available — External Gain - Refer to refer to the SA chapter’s section, “External Gain” on page 158. — Limit Lines - For information on using Limit Lines, refer to “All about Limit Lines”...
Page 313 Keysight Handheld Analyzers N99xxB 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 314 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 317 “EMI Measurements Mode Settings”...
Page 315 Electromagnetic Interference (EMI) Measurements – Option 361 Chapter Overview of EMI Measurements “Using EMI Measurements (Option 361)” on page 315 – see “EMI Measurements” on page 314 “EMI Measurements Mode Settings” on page 316 – see “EMI Measurements” on page 314 “How to Select EMI Measurements Mode”...
Page 316 Electromagnetic Interference (EMI) Measurements – Option 361 “EMI Measurement Mode Setup Procedure” on page 335 – see “EMI — Measurements” on page 314 “Glossary (EMI)” on page 337 – see “EMI Measurements” on page 314 Other Features Available – Refer to Chapter 9, “SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers)”...
Page 317: Using Emi Measurements (Option 361)
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 318: Emi Measurements Mode Settings
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 319 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 stop frequencies or select a specific CISPR band. See also, “CISPR (International Special Committee on Radio Interference) Control”...
Page 320: Scale And Units
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 321 Electromagnetic Interference (EMI) Measurements – Option 361 EMI Measurements Mode Settings Attenuation Control Learn more, refer to “Attenuation Control” on page 159. 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 322 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 323 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 324 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 N9938-90006 User’s Guide...
Page 325 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 N9938-90006 User’s Guide...
Page 326: 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 160. Resolution Bandwidth (Res BW) EMI mode has a different resolution bandwidth type for each type of EMI measurement: —...
Page 327: Single / Continuous / Restart
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 328: Points
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 329 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 330: Detection Method
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 331: Input - (Trace Input For Apd Measurements)
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 332 Electromagnetic Interference (EMI) Measurements – Option 361 EMI Measurements Mode Settings — Histogram – Displays the power levels detected over the APD Dwell Time. Keysight N9938-90006 User’s Guide...
Page 333: About Electromagnetic Interference (Emi) Measurements
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 334 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 335: How To Set Up Electromagnetic Interference (Emi) Mode Settings
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 201, 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 336: Glossary (Emi)
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 337 Keysight Handheld Analyzers N99xxB 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.
Page 338 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 339 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 126 Chapter 30, “System Settings.” (Changing display colors) Chapter 32, “File Management.”...
Page 340: Using Ota (Options 370 - Lte Fdd, 372 - Tdd, 377 - 5G Tf, And Option 378 - 5G Nr / 5G Nr Conducted)
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 341 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 342: About Over-The-Air (Ota) Measurements
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 343 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 344 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 345 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 N9938-90006 User’s Guide...
Page 346 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 N9938-90006 User’s Guide...
Page 347 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 348: Tf Features (Option 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 5G TF Features (Option 377) IMPORTANT! LTE FDD, LTE TDD, and 5G TF only demodulate PSS and SSS signals using the FieldFox’s 10 MHz demodulation path.
Page 349: Nr Features (Option 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 Figure 13-10 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 350 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 351 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 13-11 Example of 5G NR Single Carrier and Single Cell Figure 13-12 Example of 5G NR Multi-Beam –...
Page 352: Nr Evm Conducted Features (P/O: Option 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 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 353: How To Set Up Over-The-Air (Ota) Mode Settings
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 354 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 — See also “GNSS (GPS+) and GPS” on page 756.
Page 355 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 Enabled ON (Default is ON) – Enables/disables the CC scan results.
Page 356 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 Center sets the ARFCN center frequency. —...
Page 357 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 multiple component carriers are selected, the results of the component carrier (CC) with the highest power are displayed.
Page 358 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 Enabling and disabling multi-beam display is useful when displaying the results from multiple cells.
Page 359 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 — Red Limit to set the power level and color scale for high power channels.
Page 360 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 one of the following: — Red Limit to set the power level and color scale for high power channels.
Page 361 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 > 7.5 kHz (enables data with larger frequency error to be displayed) —...
Page 362 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 Auto-Detect OFF ON Enables/disables SSB Auto-Detect state. When SSB auto-detection is enabled, the SSB offset, SSB Case, Lmax, Periodicity and, optionally, SCS are all auto-detected in the measurement.
Page 363 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 Results –> Setup Opens a softkey menu to select the component carrier and optionally export scan results to 5G ——Then CC CC0...
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 How to Set Up Over–the–Air (OTA) Mode Settings a. To set the Record Settings (Outdoor Mapping only) — then choose: —...
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 How to Set Up Over–the–Air (OTA) Mode Settings 13. Outdoor Mapping only: If recording, then: —...
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 How to Set Up Over–the–Air (OTA) Mode Settings Figure 13-13 Single cell selected, but other cells displayed when CC0 to CCn has been enabled.
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 How to Set Up Over–the–Air (OTA) Mode Settings Figure 13-15 Example of the 5G TF Scan Results Table (Two cc and one cell) Keysight N9938-90006 User’s Guide...
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 How to Set Up Over–the–Air (OTA) Mode Settings Additional LTE FDD Examples (LTE TDD is Similar) Figure 13-16 Example of LTE FDD with Single Carrier, Multiple Cell Sites, KPIs Keysight N9938-90006 User’s Guide...
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 How to Set Up Over–the–Air (OTA) Mode Settings Figure 13-17 Example of LTE FDD with Multiple Carriers, Single Cell Site, and KPI’s Keysight N9938-90006 User’s Guide...
Page 370: And Preamp Option 235)
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 371: How To Define A Cell Or Cell(S) And Use Ota
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 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 How to Set Up Over–the–Air (OTA) Mode Settings 2. Selecting and OTA mode: Press Measure >...
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 How to Set Up Over–the–Air (OTA) Mode Settings then use Sync Raster, to open a softkey menu: Then Sync ARFCN,...
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 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 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 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 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 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 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 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 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 How to Set Up Over–the–Air (OTA) Mode Settings Figure 13-20 Table and Bar Chart Display Types – LTE FDD – (LTE TDD is similar) Figure 13-21 Spectrum and Strip Chart Display Type –...
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 How to Set Up Over–the–Air (OTA) Mode Settings Figure 13-22 Spectrum and Table Type (SSB Offset Detection Softkeys) – 5G NR Freq/Dist >...
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 How to Set Up Over–the–Air (OTA) Mode Settings Figure 13-23 Outdoor Display Colors Figure 13-24 Indoor Display Colors Step 4: Enable Data Logging and Playback the Results Spectrum and Strip Chart information is not recorded.
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 Data Logging creates a record of your data with a timestamp and GPS stamp (refer to “GNSS (GPS+) and GPS”...
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 ——Data Log-Play files are save-recalled to: "[CurrentDevice]:\RecordPlayback\ OTA\"...
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 — Data Selection Opens a softkey menu to set the active data channel, sort type, and sort order.
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 — 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 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 Procedure: 1. Press When done press Stop. Immediately stops recording and a “Save the Log File”...
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 — Click on each color coded balloon to see the table of measurement results for that location.
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 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 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 EMF Mode Settings (Requires EMF (Option 358) and 5G NR (Option 378)) EMF uses the following data formats: —...
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 EMF Mode Settings (Requires EMF (Option 358) and 5G NR (Option 378)) Figure 13-26 Example of EMF with Triaxial Antenna...
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 EMF Mode Settings (Requires EMF (Option 358) and 5G NR (Option 378)) EMF Setup Procedure When the USB antenna correction factors are imported, EMF (Option 358)
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 EMF Mode Settings (Requires EMF (Option 358) and 5G NR (Option 378)) —...
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 EMF Mode Settings (Requires EMF (Option 358) and 5G NR (Option 378)) i.
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 EMF Mode Settings (Requires EMF (Option 358) and 5G NR (Option 378)) Figure 13-28 Using SA Mode (Example) to Verify the Triaxial Values –...
Page 394: Screen Annotation
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 395: How To Record A Data Log Procedure
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) When GPS is enabled, GPS R is indicated at the bottom of the FieldFox display.
Page 396: To Change Data Logging Configuration Settings
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 397: How To Play A Data Log
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 398: 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 399: 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 400: Glossary (Ota)
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 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 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 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 Glossary (OTA) Table 13-1 OTA Abbreviations and Descriptions Abbreviation Description 5G NR EMF Conducted Center The specified 5G NR carrier center frequency.
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 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 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 Glossary (OTA) Keysight N9938-90006 User’s Guide...
Page 405 Keysight Handheld Analyzers N99xxB User’s Guide - Option 360 Phased Array Antenna 14 5G Rapid Prototype Phased Array Antenna – Option 360 IMPORTANT! 85571A-028 (28 GHz 5G Phased Array Antenna) accessories not suitable for use in wet locations. PAA mode is compatible with the frequency converter heads, but cannot apply or edit the frequency head corrections.
Page 406 5G Rapid Prototype Phased Array Antenna – Option 360 “Phased Array Antenna Features (Option 360)” on page 408 — “How to Set Up Phased Array Antenna Settings” on page 417 “Option 360 Setup Procedure” on page 417 — “How to Define a Set Up a Scan and Use Option 360” on page 429 —...
Page 407 5G Rapid Prototype Phased Array Antenna – Option 360 Using the Phased Array Antenna (Option 360) Using the Phased Array Antenna (Option 360) Option 360 enables you to do the following: Measure and display phased array antenna elevation and azimuth Four Display Types: —...
Page 408 5G Rapid Prototype Phased Array Antenna – Option 360 About Phased Array Antenna Measurements About Phased Array Antenna Measurements Some measurement parameters are auto-coupled and are not user-settable. Phased Array Antenna Features (Option 360) IMPORTANT! Option 360 antenna requires a static IP address. If it is required to have available an IP address that can be accessed over your company’s network, work with your company’s IT team to set up a static IP that works over the network.
Page 409 5G Rapid Prototype Phased Array Antenna – Option 360 About Phased Array Antenna Measurements Figure 14-1 Example of local point-to-point LAN connection Tripod not included. Keysight N9938-90006 User’s Guide...
Page 410 5G Rapid Prototype Phased Array Antenna – Option 360 About Phased Array Antenna Measurements Figure 14-2 Bore-Sight Scan – CW RF Figure 14-3 Polar Scan with compass displayed Keysight N9938-90006 User’s Guide...
Page 411 5G Rapid Prototype Phased Array Antenna – Option 360 About Phased Array Antenna Measurements Figure 14-4 Heat Map (Azimuth vs. Elevation) - Parked Antenna Keysight N9938-90006 User’s Guide...
Page 412 5G Rapid Prototype Phased Array Antenna – Option 360 About Phased Array Antenna Measurements Figure 14-5 Heat Map and Undocked Active Entry – Parked Antenna Scan elevation angles ±90 degrees and azimuth ±60 degrees Keysight N9938-90006 User’s Guide...
Page 413 5G Rapid Prototype Phased Array Antenna – Option 360 About Phased Array Antenna Measurements Figure 14-6 Polar Assign Orientation and Polar with Compass Orientation Keysight N9938-90006 User’s Guide...
Page 414 5G Rapid Prototype Phased Array Antenna – Option 360 About Phased Array Antenna Measurements Figure 14-7 Polar Measurement with Compass with Recalled Image of Indoor Auditorium Keysight N9938-90006 User’s Guide...
Page 415 5G Rapid Prototype Phased Array Antenna – Option 360 About Phased Array Antenna Measurements CW vs. Pulsed RF Measurements IMPORTANT! For pulsed RF measurements, increasing the Dwell Time is recommended for faster throughput and accurate signal capture in a single sweep.
Page 416 5G Rapid Prototype Phased Array Antenna – Option 360 About Phased Array Antenna Measurements Figure 14-9 Bore-Site Measurement with Pulsed RF (Dwell Time=10 ms, Max Hold=OFF) Figure 14-10 Bore-Site Measurement with Pulsed RF (Dwell Time=100 ms, Max Hold=OFF) Keysight N9938-90006 User’s Guide...
Page 417 5G Rapid Prototype Phased Array Antenna – Option 360 How to Set Up Phased Array Antenna Settings How to Set Up Phased Array Antenna Settings IMPORTANT! See also, “Alignments” on page 201, in NA mode,Chapter 9, “SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers).” This section reviews the steps in setting up an Option 360 measurement.
Page 418 5G Rapid Prototype Phased Array Antenna – Option 360 How to Set Up Phased Array Antenna Settings c. Press Done Edit > Done IMPORTANT! The LAN address for first 3 fields must match the Static IP address of FieldFox. For example, if the Ball Antenna IP address is 192.168.1.10, set FieldFox Static IP address to 192.168.1.xx.
Page 419 5G Rapid Prototype Phased Array Antenna – Option 360 How to Set Up Phased Array Antenna Settings Figure 14-13 Site Wide LAN Configurations and Field Measurements Configurations Keysight N9938-90006 User’s Guide...
Page 420 5G Rapid Prototype Phased Array Antenna – Option 360 How to Set Up Phased Array Antenna Settings Figure 14-14 Site Wide LAN Configurations and Field Measurements Configurations Azimuth and Elevation Alignment Orientation Diagram Keysight N9938-90006 User’s Guide...
Page 421 5G Rapid Prototype Phased Array Antenna – Option 360 How to Set Up Phased Array Antenna Settings 5. Entering the phased array antenna measurement type: Refer to “Data Formats:” on page 408. Select Measure: — Measure—choose: — Bore-Sight — Heat Map —...
Page 422 5G Rapid Prototype Phased Array Antenna – Option 360 How to Set Up Phased Array Antenna Settings — Clear Graphics If applicable, this clears the current displayed PNG graphic from the screen. If after making the setting changes in the steps below, no data is displayed, refer to “Troubleshooting”...
Page 423 5G Rapid Prototype Phased Array Antenna – Option 360 How to Set Up Phased Array Antenna Settings Record Save/Recall (If you have previously stored data recordings.) — Save Log File — Recall Log File — User Folder Def System (Default = Default) or —...
Page 424 5G Rapid Prototype Phased Array Antenna – Option 360 How to Set Up Phased Array Antenna Settings — Then Maps To enable map view and related features (e.g., Data Selection, Red/Blue Limits, Labels & Icons, Zoom). Then choose from the following: —...
Page 425 5G Rapid Prototype Phased Array Antenna – Option 360 How to Set Up Phased Array Antenna Settings — Polar Orientation Aligns the antenna polar display to a selected direction. — Image Enable OFF ON (Optional to overlay antenna bore-sight direction. Only active if you have recalled a PNG image to display on the FieldFox as a map.
Page 426 5G Rapid Prototype Phased Array Antenna – Option 360 How to Set Up Phased Array Antenna Settings Then choose: — Save to set the attenuator power (default: –10 dB). Set to 0 dB. — Recall change to ON. — Device to set the absolute power (dBm) —...
Page 427 5G Rapid Prototype Phased Array Antenna – Option 360 How to Set Up Phased Array Antenna Settings Figure 14-15 Example of Phased Array Antenna and FieldFox Static IP Setup - First Three Static IP Fields Are the Same Setting the phased array antenna IP address Setting the FieldFox static IP address - First three fields the same as the antenna Keysight N9938-90006 User’s Guide...
Page 428 5G Rapid Prototype Phased Array Antenna – Option 360 How to Set Up Phased Array Antenna Settings Figure 14-16 Example Antenna Settings Table Keysight N9938-90006 User’s Guide...
Page 429 5G Rapid Prototype Phased Array Antenna – Option 360 How to Set Up Phased Array Antenna Settings How to Define a Set Up a Scan and Use Option You can define measurements by selecting which type of data to display. Data definitions consist of the following: —...
Page 430 5G Rapid Prototype Phased Array Antenna – Option 360 How to Set Up Phased Array Antenna Settings 1. In the Setting screen, use the arrows, the rotary knob, or numeric keypad to highlight Obtain IP. 2. Press Obtain IP Static 3.
Page 431 5G Rapid Prototype Phased Array Antenna – Option 360 How to Set Up Phased Array Antenna Settings — Array Antenna: Center frequency, Azimuth Ref, and Elevation — Polar Display: Ref See also “How to Set Up Phased Array Antenna Settings” on page 417.
Page 432 5G Rapid Prototype Phased Array Antenna – Option 360 How to Set Up Phased Array Antenna Settings Step 4: Select Polar Settings Select one of the following display orientations: Select Trace 6—choose: For this step, refer to Figure 14-6 on page 413 and see also “How to Set Up Phased Array Antenna Settings”...
Page 433 5G Rapid Prototype Phased Array Antenna – Option 360 How to Set Up Phased Array Antenna Settings — Storage Device 2. Press Scale/Amptd then choose: — Autoscale — Unit dBm — External Gain — External Gain Step 6: Enable Data Logging and Playback the Results Spectrum and Strip Chart information is not recorded.
Page 434 5G Rapid Prototype Phased Array Antenna – Option 360 How to Set Up Phased Array Antenna Settings — Meas Interval — Interval Type Time or Distance — Time Interval — Distance Interval b. Then press Record Save/Recall — Then File Folder Default System —...
Page 435 5G Rapid Prototype Phased Array Antenna – Option 360 How to Set Up Phased Array Antenna Settings — DCREC (Option 360 only) Three file types are supported for save or recall log results: KML file format — ——Files stored in this format can be imported into 3rd party applications like Google Earth or Google Maps.
Page 436 5G Rapid Prototype Phased Array Antenna – Option 360 How to Set Up Phased Array Antenna Settings — Data Selection Opens a softkey menu to set the active data channel, sort type, and sort order. See also previous steps “How to Set Up Phased Array Antenna Settings”...
Page 437 5G Rapid Prototype Phased Array Antenna – Option 360 How to Set Up Phased Array Antenna Settings 1. Press Pause Resume to pause or resume the log playing. 2. Press Stop to stop the log playing. Learn more, refer to Chapter 16 Mapping and “Setting up Data Logging”...
Page 438 5G Rapid Prototype Phased Array Antenna – Option 360 How to Use Data Logging/Playback (Option 360) How to Use Data Logging/Playback (Option 360) Data log-Play files are saved to: If File Folder is set to Default then Data Log-Play files are save-recalled —...
Page 439 5G Rapid Prototype Phased Array Antenna – Option 360 How to Use Data Logging/Playback (Option 360) Figure 14-18 Field Strength Annotation that can be Logged and Played Back If Data Logging or Playback is not occurring when you think it should, check the following: —...
Page 440 5G Rapid Prototype Phased Array Antenna – Option 360 How to Use Data Logging/Playback (Option 360) How to Record a Data Log Data Log-Play files are saved to: If File Folder is set to Default then Data Log-Play files are save-recalled —...
Page 441 5G Rapid Prototype Phased Array Antenna – Option 360 How to Use Data Logging/Playback (Option 360) — Then Record Save/Recall — Then Device (Internal (default), SD Card, or USB) — Then File Type (CSV, DREC (Option 360 only), or KML (default)) Learn more, refer to the Chapter 32, “File Management”.
Page 442 5G Rapid Prototype Phased Array Antenna – Option 360 Using Mapping 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). — Red Limit to edit the red limit dBm value. —...
Page 443 5G Rapid Prototype Phased Array Antenna – Option 360 Troubleshooting Troubleshooting If your Phased Array Antenna setup is not behaving as expected: — Verify setup is correct by referring to “How to Set Up Phased Array Antenna Settings” on page 417.
Page 444 5G Rapid Prototype Phased Array Antenna – Option 360 Troubleshooting Keysight N9938-90006 User’s Guide...
Page 445 Keysight Handheld Analyzers N99xxB User’s Guide 15 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) Triaxial USB antennas can be used without EMF Option 358, but with limited capability and doing so is not recommended or supported by Keysight.
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) With USB Antennas (p/o EMF measurements – Option 358): — Reduce measurement complexity with a triaxial antenna to capture energy radiated from gNB —...
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) In this Chapter “Using USB Antennas” on page 448 “About USB Antenna Measurements” on page 449 “USB Antenna Features”...
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) Using USB Antennas Using USB Antennas Triaxial USB antennas can be used without EMF Option 358, but with limited capability and doing so is not recommended by Keysight.
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) About USB Antenna Measurements About USB Antenna Measurements USB antenna feature supports these standards: —...
Page 450 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 Measurements Figure 15-3 Example Verifying the Triaxial Values – Axis Y is Displayed Keysight N9938-90006 User’s Guide...
Page 451 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 How to Set Up a USB Antenna IMPORTANT! See also, “Alignments”...
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) How to Set Up a USB Antenna — Then Import Antenna – to import the antenna factors from the USB antenna connected to the FieldFox.
Page 453 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 The FieldFox should display in order Analyzing CCO X-Axis, Analyzing CCO Y-Axis, and Analyzing CCO X-Axis and then do a square root sum of the X, Y, and Z measurement values in the FieldFox.
Page 454 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 Figure 15-5 Example Verifying EMF Editing Antenna Correction Factors and Adding New Antenna Factors Keysight does not recommend editing a USB antenna’s correction factors.
Page 455 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 Figure 15-6 SA Mode – Example Editing and Adding a New X axis antenna Other Features Available —...
Page 456 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 USB antenna setup is not behaving as expected: — Verify setup is correct by referring to “How to Set Up a USB Antenna”...
Page 457 Keysight Handheld Analyzers N99xxB User’s Guide 16 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) IMPORTANT! . Refer to B Model FieldFoxes measurements require an OML head https://www.omlinc.com/. a. Requires external mixer to down convert millimeter wave frequency to intermediate frequency (IF). Recommend OML Inc.
Page 458 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 459 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 471 “How to Set Up Mapping When the FieldFox Is On The LAN” on —...
Page 460 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 461 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) Figure 16-2 Maps With Current Position Marker Displayed - (OpenStreetMaps) Figure 16-3 Using Mapping (Option 352) - Satellite View for Indoor Mapping Keysight N9938-90006 User’s Guide...
Page 462 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 463 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 16-4 Downloading the Node.js Installer to a PC Figure 16-5 Default Download Path for Node.js Installer to a PC IMPORTANT! Do not change path.
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 Downloading and Using the FieldFox Map Support Tool 1. Download the FieldFox Mapping software (“FFMapSupportInstall.msi”) to a PC’s Downloads folder.
Page 465 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 16-7 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 16-8 on page...
Page 466 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 467 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 16-8 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 Using FTP with FieldFox...
Page 468 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 c. Copy the *.zip file to your SD card or USB storage device. d. Remove the SD card/USB storage device from your PC. e.
Page 469 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 Using FTP with FieldFox and to the FieldFox Programming Guide...
Page 470 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 16-11 Example of Maps Folder Containing Imported Maps *.zip Files to the FieldFox’s InternalSD\UserData\Maps Folder Keysight N9938-90006 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 How to Set Up Mapping Settings IMPORTANT! See also, “Alignments” on page 201, in SA mode. This section reviews the steps in setting up an Option 352 Mapping measurement.
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 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 473 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 16-14 Example of Current Area Center Latitude and Longitude Values Keysight N9938-90006 User’s Guide...
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 Option 352 Indoor Maps Setup Procedure IMPORTANT! 85571A-028 (28 GHz 5G Phased Array Antenna) accessories not suitable for use in wet locations.
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 3. If you are using an antenna with your measurements, then Connect your equipment similar to Figure 14-1 on page 409 Chapter 14, “5G Rapid Prototype Phased Array Antenna –...
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 — Press Record Indoor Data – opens a menu of previously stored PNG files to select to record a new data log. a.
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 16-15 Example of an Indoor Building Map with Single Icon and Bore Sight Pointer Keysight N9938-90006 User’s Guide...
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 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 479 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 480 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Set Up Mapping Settings Figure 16-16 Example of England Displayed Text Import ZIP file using FieldFox Map Support Tool with Import Maps (ZIP) e.
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 — For setting up a USB antenna, refer to Chapter 15, “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 482 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) How to Set Up Mapping Settings Figure 16-17 Using Maps Explorer to Set the Red and Blue Power Limits c. Optional: Then Preferences >...
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 ——List files (*.csv and *.kml) are save-recalled to: "[CurrentDevice]:\RecordPlayback\CS\" ——Record-Play files are save-recalled to: "[CurrentDevice]:\RecordPlayback\CS\" — System –...
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 Figure 16-20 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 485 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 486 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 486 “Enabling and Setting Up Indoor Map Logging”...
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 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 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 change your file settings or measurement interval. Learn more, refer to “To change Data Logging Configuration settings:”...
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 Sets the type of icon that is used to display a Icons map’s data points. Flag Point Line ——...
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 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 491 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 492 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 493 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 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) 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 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) — Press Scale /Amptd > More > Unit then choose: — dBmV, dBuV, W, V, A, dBmA, or dbuA (Default Units: dBm) Figure 16-22 on page...
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) 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 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) — Press Line Length – 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 498 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 16-23 Directional Finding (DF) Bearing – Outdoor Map Data Logging Example Keysight N9938-90006 User’s Guide...
Page 499 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 16-24 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 500 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 Temporarily halts recording until pressed again.
Page 501 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233), and GPS Receiver (Option 307)) Troubleshooting — Then Data Logging > Record Save/Recall If these are large recordings on a device, it could take several seconds for the FieldFox to display the list.
Page 502 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 503 — “Miscellaneous Mapping Errors” on page 506 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 503 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: — Verify setup is correct by referring to “How to Set Up Mapping Settings” on page 471.
Page 504 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 16-25.
Page 505 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 506 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 16-28 Figure 16-29 on page...
Page 507 Keysight Handheld Analyzers N99xxB User’s Guide 17 Remote Server Mode (Requires SA Hardware/SA Option 233) Remote server mode enables you to connect your FieldFox to compatible ). Refer to PC-based licensed software applications (e.g., 89600 VSA software http://www.keysight.com/find/assist. 89600 VSA (via the Remote Server feature) are compatible with the frequency converter heads, but cannot apply or edit the frequency head corrections.
Page 508 Remote Server Mode (Requires SA Hardware/SA Option 233) In this Chapter: In this Chapter: “Connecting Using Remote Server” on page 509 “89600 VSA Software Overview (Requires N991xB/3xB/5xB/6xB and SA Option 233)” on page 511 See Also Optional Settings: “LAN Settings” on page 765 “All about Markers”...
Page 509 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 510 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 511 Remote Server Mode (Requires SA Hardware/SA Option 233) 89600 VSA Software Overview (Requires N991xB/3xB/5xB/6xB and SA Option 233) 89600 VSA Software Overview (Requires N991xB/3xB/5xB/6xB 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 512 Remote Server Mode (Requires SA Hardware/SA Option 233) 89600 VSA Software Overview (Requires N991xB/3xB/5xB/6xB and SA Option 233) — Easy-to-use Microsoft Windows graphical user interface 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.
Page 513 Keysight Handheld Analyzers N99xxB 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 514 “Common Settings for Waterfall and Spectrogram” on page 516 “Waterfall Display”...
Page 514: Spectrogram Display (Sa Option)
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 515 Interference Analyzer (SA Mode) – Option 236 Spectrogram and Waterfall Displays — Resolution (Number of Points). Learn more in “Points ” on page 198. How to select Spectrogram — Press Meas 1 — Then Interference Analysis — Then Spectrogram How to modify the Spectrogram You can change how the spectrogram is displayed relative to the data trace.
Page 516 Interference Analyzer (SA Mode) – Option 236 Spectrogram and Waterfall Displays — At the current sweep speed, the difference in time between these two markers appears at the upper-right corner of the view as Delta Time: hh:mm:ss Sec. — An invalid number (very large positive or negative) appears when a trace record is not available at either marker.
Page 517: Waterfall Display
Interference Analyzer (SA Mode) – Option 236 Spectrogram and Waterfall Displays Averaging Averaging can be enabled on the underlying measurement. Press Meas 4 then Average Type. Learn more in “Average Type” on page 199. Mode Preset Mode Preset resets ONLY the Spectrogram and Waterfall display settings. It does not reset the measurement settings.
Page 518 Interference Analyzer (SA Mode) – Option 236 Spectrogram and Waterfall Displays — Wide Angle Moderate angle with increased space between records. Learn how to set Red and Blue Limits in “Set Red and Blue Limits” on page 516. Keysight N9938-90006 User’s Guide...
Page 519: 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 520 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 — Then TraceRecordLimit <n> (n = Max number of traces that can be recorded).
Page 521 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 522 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 can be changed using Manage Sessions. Learn more in “Manage Sessions” on page 527.
Page 523 Interference Analyzer (SA Mode) – Option 236 Record/Playback (SA Option) — Press Record to continue recording. How to Playback a Session — Press Trace 6 — If the session is already open, skip the following step. Otherwise: — Then Record Playback Setup —...
Page 524 Interference Analyzer (SA Mode) – Option 236 Record/Playback (SA Option) — Then Record Playback — Then New Session Recall an existing session. New Session is selected: — Then Session Data and choose one of the following: — Then CSV SaveStyle ——Single Trace (default) saves the currently displayed trace.
Page 525 Interference Analyzer (SA Mode) – Option 236 Record/Playback (SA Option) — FreqMaskTrigger OFF ON Sets the power level which will trigger a recording. Set these power levels (mask) exactly as you would set Limit Lines. (See “All about Limit Lines” on .) With Record ON, when any data point measurement is higher page 715 than an upper limit, or lower than a lower limit, recording begins.
Page 526 Interference Analyzer (SA Mode) – Option 236 Record/Playback (SA Option) — Press Trace 6 — Then Record Playback — Then New Session Recall an existing session. The current mask appears as soon as a session is opened. — Then FreqMaskTrigger Configuration —...
Page 527 Interference Analyzer (SA Mode) – Option 236 Record/Playback (SA Option) SA Data Recording: — Data can be recorded at the Raw Meas block where data is acquired after ResBW, VideoBW, and Detector processing, but before any trace state processing. — Data can be recorded from Traces 1,2,3, or 4 which includes the trace state (Max Hold, Min Hold, and so forth).
Page 528 Interference Analyzer (SA Mode) – Option 236 Record/Playback (SA Option) — Then Storage Device to select the media which stores the sessions to be managed. This is a different setting from the Save/Recall Storage Device setting. — Then choose from the following: —...
Page 529 Interference Analyzer (SA Mode) – Option 236 Record/Playback (SA Option) — Then Stop to end the recording. This session can be played back into any Trace State. For example: Play the Max Hold recording into a Clear/Write trace to see the data exactly as it was recorded.
Page 530 Interference Analyzer (SA Mode) – Option 236 Record/Playback (SA Option) Keysight N9938-90006 User’s Guide...
Page 531 Keysight Handheld Analyzers N99xxB 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 532 Reflection Mode (SA Models) - Option 320 SA mode reflection measurements are CalReady. Learn more in “CalReady” on page 127. In addition, Normalization is available. Learn how “Normalize” on page 534. However, other calibration types are NOT offered. In this Chapter “How to select Reflection Mode”...
Page 533 Reflection Mode (SA Models) - Option 320 The following settings are available exactly as they function in CAT mode: “Frequency Range” on page 53 “Scale Settings” on page 53 “Averaging” on page 54 “Single or Continuous Measure” on page 55 “Resolution (Number of Data Points)”...
Page 534 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 — Then Reflection Measurement Selection How to select a Reflection Mode Measurement Learn more about these two measurements in the Supplemental Online Help: http://na.support.keysight.com/fieldfox/help/SupHelp/FieldFox.htm —...
Page 535 Reflection Mode (SA Models) - Option 320 Reflection Mode Settings — Press Trace 6 — Then Normalize The yellow data trace displays the current measurement with trace math applied. The math operation symbol [D/M] is displayed on the lower left corner of the screen.
Page 536 Reflection Mode (SA Models) - Option 320 Reflection Mode Settings Keysight N9938-90006 User’s Guide...
Page 537 Keysight Handheld Analyzers N99xxB 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 538 Built-in Power Meter Mode – Option 310 “Limits” on page 553 The following Built-in Power Meter settings are identical to SA Mode settings: “Radio Standard” on page 540 “How to Access Individual Alignments” on page 205 Keysight N9938-90006 User’s Guide...
Page 539 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 — Then More —...
Page 540 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 541 Keysight Handheld Analyzers N99xxB 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 543 “How to Connect a USB Power Sensor”...
Page 542 Power Meter (USB/LAN) Mode - Option 302 “Resolution” on page 551 “Averaging” on page 552 “Single or Continuous Measure” on page 552 “Step Detection Mode” on page 553 “Limits” on page 553 “Troubleshooting” on page 554 See Also “FOPS Settings” on page 561 “All about Markers”...
Page 543 Power Meter (USB/LAN) Mode - Option 302 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 544 Power Meter (USB/LAN) Mode - Option 302 — Red light indicates an error has occurred with the power sensor. Refer to power sensor documentation. — No light indicates the FieldFox is not communicating with the power sensor. This is the case when in Hold mode or when NOT in Power Meter Mode.
Page 545 Power Meter (USB/LAN) Mode - Option 302 Learn more, refer to “USB and LAN Power Meter Settings” on page 546. To access the LAN Sensor Settings: — Press Meas Setup 4 > More > LAN Sensor Settings Using the LAN Sensor Settings —...
Page 546 Power Meter (USB/LAN) Mode - Option 302 USB and LAN Power Meter Settings IMPORTANT! When a LAN power sensor is initially connected to the LAN, it may take ~10 seconds for the LAN power sensor to finish zeroing and for the FieldFox to recognize the LAN power sensor.
Page 547 Power Meter (USB/LAN) Mode - Option 302 USB and LAN Power Meter Settings How to select a Sensor Type — Press Meas Setup 4. — Then Sensor Type USB LAN (Default = USB). Average / Peak — Press Measure 1 —...
Page 548 Power Meter (USB/LAN) Mode - Option 302 USB and LAN Power Meter Settings In addition, once External Zeroing has started, the power source must be OFF for the entire time that the Zeroing message is present. Otherwise, the calibration will be compromised but NO warning is shown. Frequency A table of correction factors versus frequency is stored within Keysight Power Sensors.
Page 549 Power Meter (USB/LAN) Mode - Option 302 USB and LAN Power Meter Settings How to Set Source Control and Power Level — Press Sweep 3 > Advanced When Option 208 (FOPS) is enabled, to access Source Control, press Sweep 3, then Power Setup Learn more about FOPS beginning on page Chapter 22, “Frequency Offset Using Power Sensor (FOPS) –...
Page 550 Power Meter (USB/LAN) Mode - Option 302 USB and LAN Power Meter Settings Using Autoscale, the current reading is used for the center of the scale, and Min and Max values are set accordingly. — Press Scale / Amptd. — Then Autoscale. Source Power Measurements Before making a source power measurement, a calibration is required.
Page 551 Power Meter (USB/LAN) Mode - Option 302 USB and LAN Power Meter Settings This softkey is not available when Rx Power is enabled. See also “Source Power Measurements” on page 550. — Offset Off On Toggles ON and OFF the displayed power level using the Offset value (default = Off (0.000 dB)).
Page 552 Power Meter (USB/LAN) Mode - Option 302 USB and LAN Power Meter Settings Averaging Averaging is used to improve measurement accuracy in low power or noisy power situations. Increased averaging improves measurement accuracy, but also reduces measurement speed. How to set Power Meter Averaging —...
Page 553 Power Meter (USB/LAN) Mode - Option 302 USB and LAN Power Meter Settings Step Detection Mode The FieldFox supports the Step Detection feature that is present in Keysight USB power sensors. When enabled, this feature reduces settling time after a significant step in the measured power.
Page 554 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 554 —...
Page 555 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 556 Power Meter (USB/LAN) Mode - Option 302 Troubleshooting Keysight N9938-90006 User’s Guide...
Page 557 Keysight Handheld Analyzers N99xxB 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 558 Frequency Offset Using Power Sensor (FOPS) – Option 208 “Amplitude Markers” on page 565 “Trace Math” on page 565 See Also “All about Trace Math” on page 720 Keysight N9938-90006 User’s Guide...
Page 559 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 560 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 N9938-90006 User’s Guide...
Page 561 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 starting in “USB and LAN Power Meter Settings” on page 546 Select Power Meter (USB Sensor) before making any setting in this section.
Page 562 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 563 Frequency Offset Using Power Sensor (FOPS) – Option 208 FOPS Settings ——Then Freq Display. This determines how the receiver 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 564 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 565 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 566 Frequency Offset Using Power Sensor (FOPS) – Option 208 FOPS Settings 3. View Data & Memory 4. Meas Src Power. Keysight N9938-90006 User’s Guide...
Page 567 Keysight Handheld Analyzers N99xxB 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 568 Pulse Measurements Mode – Option 330 “Triggering” on page 577 “Marker Settings” on page 580 “Amplitude Markers” on page 581 “How to Search with Markers” on page 581 “How to enable Auto Analysis” on page 583 “Pulse Top” on page 583 “Grid”...
Page 569 Pulse Measurements Mode – Option 330 Supported Power Sensors USB and LAN Power Sensors — “Best Practices For Making The Most Accurate Radar Pulse Measurements” https://www.keysight.com/us/en/assets/7018-03483/application-notes/5991 -0434.pdf a. Learn more, refer to the User’s Guide and Programming Guide for your USB or LAN model power sensor.
Page 570 Pulse Measurements Mode – Option 330 Supported Power Sensors How to Connect the USB Power Sensor Connect your Power Sensor to one of the FieldFox USB ports. Use an attenuator between the DUT and the power sensor when measuring power levels that are higher than +20 dBm. The attenuator value can be subtracted from the measurement using the Offset feature, discussed in “Relative and Offset Power Measurements”...
Page 571 Pulse Measurements Mode – Option 330 Supported Power Sensors LAN Sensor Settings The LAN Sensor settings enable you to — Select your model of sensor — Enter your Sensor I.D. via DNS serial number or IP address Learn more, refer to “USB and LAN Power Meter Settings”...
Page 572 Pulse Measurements Mode – Option 330 Supported Power Sensors IMPORTANT! When a LAN power sensor is initially connected to the LAN, it may take ~10 seconds for the LAN power sensor to finish zeroing and for the FieldFox to recognize the LAN power sensor. If your LAN power sensor is not operating as expected: Verify the latest firmware is loaded on the FieldFox.
Page 573 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 — Then More if your FieldFox contains more than five measurement modes. —...
Page 574 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 575 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 576 Pulse Measurements Mode – Option 330 Pulse Measurement Settings Averaging is performed in the USB and LAN Power Sensors before the data is sent to the FieldFox. Annotation in the left pane shows the state of the Average setting. When Manual is selected, the ‘Num of Averages’...
Page 577 Pulse Measurements Mode – Option 330 Pulse Measurement Settings Single or Continuous Measure This setting determines whether the FieldFox continuously queries the USB Power Sensor for data, or only once each time the Single button is pressed. Single to conserve battery power or to allow you to save or analyze specific data.
Page 578 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 579 Pulse Measurements Mode – Option 330 Pulse Measurement Settings — Then enter a value using the numeric keypad, the arrows, or the rotary knob. 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 580 Pulse Measurements Mode – Option 330 Pulse Measurement Settings — Then Trigger — Then Qualification — Then set the qualification value using the numeric keypad or the rotary knob μ (default: 100 ns, minimum: 25 ns, maximum: 50 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),...
Page 581 Pulse Measurements Mode – Option 330 Pulse Measurement Settings Up to six standard markers can be used to provide readouts of the Y-axis amplitude at the current X-axis location. The six standard markers can also be used as Delta Markers. Learn more about standard markers in “All about Markers”...
Page 582 Pulse Measurements Mode – Option 330 Pulse Measurement Settings — Then Zone Search — Then choose from the following: — Available ONLY when the zoom window is enabled, the search is limited to the zone defined by the zoom window. —...
Page 583 Pulse Measurements Mode – Option 330 Pulse Measurement Settings 6 - Fall Time The time it takes for a pulse to fall from 90% to 10% of its peak value. 7 - Pulse Width The time between the rising edge and falling edge of a pulse.
Page 584 Pulse Measurements Mode – Option 330 Pulse Measurement Settings — Then Grid — Grid OFF — A grid of X/Y lines appears on the screen. Trace Memory A memory trace is a pulse measurement Tr 1 data trace (NOT the trace in the Zoom window) that has been stored in the FieldFox volatile memory.
Page 585 Keysight Handheld Analyzers N99xxB User’s Guide 24 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 24-1 Display for the 1-Port Cable Trimming measurement In this Chapter...
Page 586 VVM (Vector Voltmeter) Mode - Option 308 Procedures “1-Port Cable Trimming Measurements ” on page 593 “2-Port Transmission Measurements” on page 595 “A/B and B/A Measurements” on page 596 Keysight N9938-90006 User’s Guide...
Page 587 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 24-2 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 588 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 589 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 590 VVM (Vector Voltmeter) Mode - Option 308 VVM Mode Settings How to set Output Power — Press Meas Setup 4. — Then More — Then Output Power — 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 591 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 592 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 595. Press Zero OFF before performing a Mechanical Cal (sets Zero to OFF). How to select Zeroing —...
Page 593 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 594 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 595 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 596 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 597 Keysight Handheld Analyzers N99xxB User’s Guide 25 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 598 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 599 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 600 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 601 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 602 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 603 ERTA (Extended Range Transmission Analysis) Mode - Option 209 Start Connection Wizard — Press Re-measure or Continue. — Press Apply Corrections Auto to remove the jumper cables from subsequent DUT measurements (Default = Auto). — Press Done to exit the Connection Wizard. —...
Page 604 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 605 ERTA (Extended Range Transmission Analysis) Mode - Option 209 Configure Measurement Settings Learn more about Trace Display States in “Trace Display States (SA Mode)” on page 198. Normalize Normalize can be used to quickly provide ‘zeroing’ for any of the ERTA (B, R, or G) traces.
Page 606 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 607 Keysight Handheld Analyzers N99xxB User’s Guide 26 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 608 AM/FM Metrics (SA Only and Option 355) Using AM/FM Metrics Table 26-1 Measurement Details Measurement details Modulation Rate The modulation rate quantifies how fast the modulation is and equates to the frequency of the baseband signal that modulates the carrier. SINAD (Signal to Noise Another commonly used distortion measure is signal to noise and distortion and Distortion Ratio)
Page 609 AM/FM Metrics (SA Only and Option 355) Using AM/FM Metrics Table 26-1 Measurement Details Modulation Metrics FM deviation The FM deviation reflects the amount of the frequency modulation to which the baseband signal modulates the carrier signal. The quantity being measured is the peak frequency deviation that is the maximum frequency excursion from the carrier frequency.
Page 610 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 611 AM/FM Metrics (SA Only and Option 355) Using AM/FM Metrics Figure 26-1 AM Metrics - Example 1 Keysight N9938-90006 User’s Guide...
Page 612 AM/FM Metrics (SA Only and Option 355) Using AM/FM Metrics Figure 26-2 AM Metrics - Example 2 Keysight N9938-90006 User’s Guide...
Page 613 AM/FM Metrics (SA Only and Option 355) Using AM/FM Metrics Figure 26-3 FM Metrics - Wide band Example Keysight N9938-90006 User’s Guide...
Page 614 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 26-4 on page 614.
Page 615 AM/FM Metrics (SA Only and Option 355) SINAD and THD Calculations Figure 26-5 SINAD and THD Results - Example 1 Keysight N9938-90006 User’s Guide...
Page 616 AM/FM Metrics (SA Only and Option 355) SINAD and THD Calculations Figure 26-6 SINAD and THD Results - Example 2 Keysight N9938-90006 User’s Guide...
Page 617 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 618 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 619 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 620 AM/FM Metrics (SA Only and Option 355) Interpreting AM/FM Metrics Error Messages Keysight N9938-90006 User’s Guide...
Page 621 Keysight Handheld Analyzers N99xxB User’s Guide 27 Channel Scanner (Option 312) In this Chapter: “Using Channel Scanner” on page 622 “How to Set Up Channel Scanner” on page 623 “Field Strength Measurements” on page 640 — “Using the Antenna/Cable Editor” on page 646 —...
Page 622 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. Six Display Types: — Bar graph vertical display orientation —...
Page 623 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 information, refer to “How to Define a Channel and Use Channel Scanner”.
Page 624 Channel Scanner (Option 312) How to Set Up Channel Scanner — Meas Interval — Interval Type Time or Distance — Time Interval — Distance Interval — Then Back b. Then press Record Save/Recall — Then File Folder Default System — Default –...
Page 625 Channel Scanner (Option 312) How to Set Up Channel Scanner — Record Indoor Data Recall Indoor Log File. Learn more, refer to Chapter 16 Mapping and “Option 352 Indoor Maps Setup Procedure” on page 474 “Setting up Data Logging” on page 486.
Page 626 Channel Scanner (Option 312) How to Set Up Channel Scanner — Save Image (PNG) Saves the current displayed map to a *.png file (default filename is “MapImageFile”). Data Log-Play files are saved to: If File Folder is set to Default then Data Log-Play files are —...
Page 627 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 27-2 Channel Definition Step 1A: Scan Mode: Range Channel Defined 1. Define some channels: Press Measure > Scan Mode > Range 2. Press Edit Range and modify table items: —...
Page 628 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 27-3 Range Table Settings 3. Press Done Step 1B: Scan Mode: Custom List Channel Defined 1. Define some channels: Press Measure > Scan Mode > Custom List 2. Press Edit Custom List and modify table items: —...
Page 629 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 27-4 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 780.
Page 630 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 27-5 Bar Chart Vertical Display Type Figure 27-6 Bar Chart Horizontal Display Type Keysight N9938-90006 User’s Guide...
Page 631 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 27-7 Channel Power Display Type Figure 27-8 Strip Chart Display Type Keysight N9938-90006 User’s Guide...
Page 632 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 27-9 Strip Chart Overlay Display Type Figure 27-10 Scan & Listen Display Type Keysight N9938-90006 User’s Guide...
Page 633 Channel Scanner (Option 312) How to Set Up Channel Scanner Step 3. Modify Scale and the Display Color Bar Settings To assign colors to low and high power values: 1. Press Scale/Amptd > Red Limit to set high power values and to set the color.
Page 634 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 27-12 Indoor Display Colors Step 4: Enable Data Logging and Play Results Data logging records your data with a timestamp and GPS stamp (refer to “GPS” on page 746). GPS must be enabled for the log results to include a GPS stamp.
Page 635 Channel Scanner (Option 312) How to Set Up Channel Scanner Outdoor Mapping Procedure For Indoor Mapping and more on Outdoor Mapping, see also Chapter 16 Mapping and “Option 352 Indoor Maps Setup Procedure” on page 474, “Option 352 Outdoor Maps Setup Procedure” on page 478, and “Setting up Data Logging”...
Page 636 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 27-13 on page 637. 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 637 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 27-13 Spectrogram View Step 5: Save the Log Results: Two file types are supported for save or recall log results: — KML file format — Files include bar color —...
Page 638 Channel Scanner (Option 312) How to Set Up Channel Scanner 5. Optional: Auto Save ON (OFF = default)—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 639 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 Learn more, refer to Chapter 16...
Page 640 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 641 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 27-16 Editing Antenna Factor (See also, Figure 27-15 on page 640.) Keysight N9938-90006 User’s Guide...
Page 642 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 27-17 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 643 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 644 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 27-18 Apply Corrections Set to Auto Keysight N9938-90006 User’s Guide...
Page 645 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 27-19 Apply Corrections Set to Disabled Keysight N9938-90006 User’s Guide...
Page 646 Channel Scanner (Option 312) How to Set Up Channel Scanner Using the Antenna/Cable Editor The Antenna Editor and the Cable Editor menus are very similar. Both tables include header information, and a Frequency/Value table. Figure 27-20 FieldFox Antenna Editor How to use the Antenna/Cable Editor —...
Page 647 Channel Scanner (Option 312) How to Set Up Channel Scanner ——For both Cable and Antenna correction, Positive numbers indicate loss (we need ADD something positive to compensate for it), and Negative is indicative of some existing gain. ——Antenna Factor describes the dB value needed to accurately display a far-field signal in terms that are in the units listed below.
Page 648 Channel Scanner (Option 312) How to Set Up Channel Scanner — All Channel Scanner mode 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 649 Keysight Handheld Analyzers N99xxB User’s Guide 28 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 650 Noise Figure Mode (Option 356) Figure 28-1 Example of Jitter Uncertainty (21 points)—with Uncertainty Bars. Learn more “How to use Auto-Integration” on page 690. Figure 28-2 Example of Jitter Uncertainty (21 points)—with Uncertainty Bars Disabled. Learn more in “How to use Auto-Integration” on page 690.
Page 651 Noise Figure Mode (Option 356) In this Chapter: “Using Noise Figure” on page 652 “How to Define a Noise Figure Measurement” on page 656 “Example: Typical Noise Figure Measurement Procedure” — on page 656 “Overview of Softkey Menus” on page 657 —...
Page 652 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 653 Noise Figure Mode (Option 356) Using Noise Figure Figure 28-3 Display Annotation—Overview 1. Variable Voltage Source (VVS) Status (appears when VVS is on. Refer to “Variable Voltage Source (Opt. 309)” on page 762. 2. Calibration Status 3. Excess Noise Ratio (ENR) Status 4.
Page 654 Noise Figure Mode (Option 356) Using Noise Figure Figure 28-4 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 28-5 Calibration Annotation 1. No Cal = No calibration applied 2.
Page 655 Noise Figure Mode (Option 356) Using Noise Figure Figure 28-6 ENR Status and Mode Annotation ENR Status annotation 1. ~ENR = Using ENR table, but it’s extrapolated (the sweep frequency range goes beyond the table frequency range) 2. ENR = Using ENR table and it’s not extrapolated (the sweep frequency range is within the table frequency...
Page 656 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement How to Define a Noise Figure Measurement The Option 356 Noise Figure mode uses the Y-factor method to calculate the noise figure. This section contains the following: — “Example: Typical Noise Figure Measurement Procedure”...
Page 657 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement 6. Perform a Receiver Calibration: (Cal > Run Receiver Cal and follow prompts). 7. Enter DUT setup type: Meas Setup > > Type — Amplifier (default), — Downconverter, —...
Page 658 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement — Gain Specify Gain or — Noise Temperature Specify Noise Temperature or — YFactor Specify Y-Factor b. Then modify the settings based on the selected noise figure type 2.
Page 659 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement ——More opens additional ENR Spot Value softkey menu choices Γ —— Spec. Style [95th %ile] Opens a menu of Γ softkeys to set the specification style. Then choose Maximum, 95th %ile (default), 80th...
Page 660 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement — T Cold Default When making measurements at different ambient temperatures, you can set the T value in cold Kelvin (K) manually (User). When set to Default, the T cold value is set to the 296.5 K (Default = Default).
Page 661 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 Then choose: —...
Page 662 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 Γ —— Sets the input value. Output |Γ Γ —— Sets the output value. Γ...
Page 663 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement ——Save DUT Table Opens a Create a filename menu of softkeys to enter a DUT table filename and then to save the file. ——Recall DUT Table Opens a Select a file menu of softkeys to enter a DUT table filename to recall.
Page 664 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement ——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. σ σ σ...
Page 665 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement Figure 28-8 DUT – Measurement Setup – Type [Amplifier] Screen DUT – Measurement Setup – Type [Amplifier] Used for setting up DUT parameters without an external preamplifier (LNA) –...
Page 666 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement Figure 28-9 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 667 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement Figure 28-10 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 668 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement Figure 28-11 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 669 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 670 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 671 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 672 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 673 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 becomes interpolated.
Page 674 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement Figure 28-15 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 675 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement Setting DUT Loss Compensation Figure 28-16 DUT Loss Compensation DUT – Measurement Setup – Type [Amplifier], [Downconverter], [Upconverter], and [Multi-Stage Converter] Used for setting up loss compensation for a DUT –...
Page 676 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 once each time the Single or Run / Hold +/- button is pressed. Use Hold / Single or to conserve battery power or to allow you to save or analyze a specific trace.
Page 677 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 678 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 679 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 680 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 681 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement — Noise Source Reflection Coefficient, ENR Uncertainties, and ENR values: For this section, see also “Overview of Softkey Menus” on page 657 (Noise Source page 658) and “Using ENR Tables” on page 683.
Page 682 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 Γ distribution ( Distribution) and specified style (Spec Style) for the preamplifier reflection coefficient value.
Page 683 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 measurement to compute the measurement uncertainty.
Page 684 Noise Figure Mode (Option 356) How to Define a Noise Figure Measurement Figure 28-17 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 685 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 686 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 700.
Page 687 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 688 Noise Figure Mode (Option 356) Calibration Wizard 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. As already stated, the receiver calibration measures the measurement bandwidth of the receiver.
Page 689 Noise Figure Mode (Option 356) Calibration Wizard — 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. Due to the output reflection coefficient of the DUT, reverse noise waves from the preamplifier, when present, will contribute a different amount of noise power during the measurement of the DUT than during the user calibration.
Page 690 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 691 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 692 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 693 Noise Figure Mode (Option 356) How to use Auto-Integration Figure 28-20 Example of Jitter Uncertainty (401 points)—with Uncertainty Bars Keysight N9938-90006 User’s Guide...
Page 694 Noise Figure Mode (Option 356) How to use Auto-Integration Figure 28-21 Example of Jitter Uncertainty (401 points)—without the Uncertainty Bars Keysight N9938-90006 User’s Guide...
Page 695 Noise Figure Mode (Option 356) How to use Auto-Integration Figure 28-22 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 28-22...
Page 696 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 715. — Display Lines - For information on using Limit Lines, refer to the SA chapter’s section, “Display Line”...
Page 697 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 28-23 Example of an invalid measurement Keysight N9938-90006 User’s Guide...
Page 698 Noise Figure Mode (Option 356) Troubleshooting Keysight N9938-90006 User’s Guide...
Page 699 Keysight Handheld Analyzers N99xxB User’s Guide 29 Data Analysis Features The following features can be used after a measurement to analyze the results. In this Chapter “How to create Markers” on page 700 “How to move a Marker after it is created” on page 700 “About Delta Markers”...
Page 700: 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 701 Data Analysis Features All about Markers Figure 29-1 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 702 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. — Move the Delta marker using the numeric keypad, the arrows, or the rotary knob.
Page 703 Data Analysis Features All about Markers How to display the Marker table — Press Marker. — Then More — 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 704 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): — Press Marker — Then More — 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 705 Data Analysis Features All about Markers How to move an IQ and SA mode marker between traces — 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 setting is 1). —...
Page 706 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 in “Format” on page —...
Page 707 Data Analysis Features All about Markers 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. — Bandwidth ON OFF (NA Mode ONLY) Use to quickly toggle BW Markers ON and OFF.
Page 708 Data Analysis Features All about Markers Figure 29-5 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 709 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 710 Data Analysis Features All about Markers When markers are set to Normal, Mkr5 and Mkr6 can be used to find the minimum and or maximum values between Mkr1 and Mkr2 (using Mkr5) and Mkr3 and Mkr4 (using Mkr6). Refer to Figure 29-6 on page 711.
Page 711 Data Analysis Features All about Markers Figure 29-6 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 712 Data Analysis Features All about Markers — In IQA (Spectrum) and SA mode: — Then More ——Then Mkr Properties ——Then Peak Criteria — In IQA (Waveform) mode: — Then Mkr Properties ——Then Peak Criteria After selecting Peak Criteria for CAT, IQA, NA, or SA mode: ——Then select the following: ——Peak Threshold Minimum amplitude (dB).
Page 713 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 714 Data Analysis Features All about Markers — 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 715: 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 716 Data Analysis Features All about Limit Lines ——Upper - (Default) FAILS any measured data point ABOVE the line. ——Lower - FAILS any measured data point BELOW the line. — Off/On – Press Edit to toggle between the following: ——On - Limit line is drawn on the screen and PASS/FAIL testing occurs. ——Off - Limit line is NOT drawn on the screen and testing does NOT occur.
Page 717 Data Analysis Features All about Limit Lines Once limit lines have been built from the trace, changes that you make to the trace, such as frequency range, do NOT change the limits. However, the limit line properties can be edited just like standard limit lines.
Page 718 Data Analysis Features All about Limit Lines ——On Fail Audible beep sounds when a sweep fails. ——Off No audible beep sounds. — Warning On Off Shows Pass or Fail indication on the display with each sweep. Data points that fail are highlighted. —...
Page 719 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 720: 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—Opt. 356) does not have trace math, but does have the ability to display data and memory traces.
Page 721 Data Analysis Features All about Trace Math — Data / Mem [D/M] Current measurement data is divided by the data in memory. — Math Off [Data] Displays trace data with NO math applied. About Math Operations Data / Memory and Data - Memory math operations are performed on complex linear data before it is formatted.
Page 722 Data Analysis Features All about Scale Settings All about Scale Settings 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. This setting can be changed at any time without affecting calibration accuracy. How to set Scale —...
Page 723 Data Analysis Features All about Scale Settings Average Count determines the number of sweeps to average; the higher the average count, the greater the amount of noise reduction. An average counter is shown in the left edge of the screen as Avg N. This shows the number of previous sweeps that have been averaged together to form the current trace.
Page 724 Data Analysis Features All about Scale Settings Keysight N9938-90006 User’s Guide...
Page 725 Keysight Handheld Analyzers N99xxB User’s Guide 30 System Settings In this Chapter “Run/Hold” on page 726 “Preset” on page 727 “User Preset” on page 727 “Audio (Volume) Control” on page 728 “Display (Settings)” on page 729 “Display Brightness” on page 729 “Display Colors”...
Page 726 System Settings Run/Hold “File Saving Naming Options” on page 749 “System Configuration” on page 754 “Options (Licensing)” on page 754 “GNSS (GPS+) and GPS” on page 756 “Frequency Reference Source” on page 760 “Variable Voltage Source (Opt. 309)” on page 762 “Security Level”...
Page 727 System Settings Preset — Single Automatically sets Continuous OFF (Hold) and causes FieldFox to make ONE measurement sweep, then hold for the next Single key press. — SA Mode ONLY – With Continuous OFF each successive Run/Hold press also causes a single sweep. —...
Page 728 System Settings Audio (Volume) Control How to set User Preset — Make your custom settings for all modes. — When finished, press Preset. — Then Save User Preset, then select to confirm. — Then User Preset ON How to recall User Preset —...
Page 729 System Settings Display (Settings) How to set the FieldFox Volume Control — Press System 7 — Then Volume — Then use the arrows, the rotary knob, or numeric keypad to enter a value between 0 (lowest volume) and 100 (highest volume). —...
Page 730 System Settings Display (Settings) — Then Display Colors — Then choose one of the following: Indoor Outdoor Dusk Outdoor Clouds Outdoor Sun Night Vision 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.
Page 731 System Settings Display (Settings) How to add or edit a Title — Press System 7 — Then Display — Then Title — Then enter or edit a title using the FieldFox labeler. This is the same labeler function that is used to name files. Learn how to use the labeler in “How to use the FieldFox labeler ”...
Page 732 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 USB antennas softkeys, refer to Chapter 14, “5G Rapid Prototype Phased Array Antenna –...
Page 733 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 734 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 735 System Settings Utilities Frequency Extender Procedure: General Comment on Frequency Converter Usage: OML heads are limited to 6 GHz span. Example: If you are using a 24–40 GHz OML head you can sweep: 24–30 GHz and 25–31 GHz, but not: 24–31 GHz But, in OTA mode, because each frequency is set separately, you can set CC0 to 24 GHz and CC1 to 31 GHz.
Page 736 System Settings Utilities panel. The corrections applied (regardless of mode) are either default/nominal (if Auto loading was used) or custom/specific (if manual editing Edit SA was used). Default is OFF. 8. Press Mode > and then your preferred mode for testing. IMPORTANT! The softkey menu for editing of the frequency converter correction files is only available when the FieldFox is in SA mode.
Page 737 System Settings Utilities Save Converter opens a ’labeler’ menu where you can name and save your frequency converter corrections file (*.csv) to the default [INTERNAL]:\Converter folder. Recall Converter opens a menu where you can recall a frequency converter corrections file (*.csv).
Page 738 System Settings Utilities Figure 30-2 FieldFox Frequency Converter High Sensitivity (ON: Narrow—Lowest Noise Floor—Displayed) Figure 30-3 FieldFox Frequency Extender Select Frequency Extender Head Keysight N9938-90006 User’s Guide...
Page 739 System Settings Utilities Figure 30-4 FieldFox Frequency Converter Corrections Table Figure 30-5 FieldFox Frequency Converter (Freq Extend) On And Corrections (eCorr) Enabled (SA mode shown; other compatible modes are similar.) Keysight N9938-90006 User’s Guide...
Page 740 System Settings Preferences Figure 30-6 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 741 System Settings Preferences How to view and change Preference Quick Settings — Press System 7 — Then Preferences — Then Preferences — Press Next Page Previous Page to view all settings. — To change a setting: — Use the arrows to highlight a setting. —...
Page 742 System Settings Preferences Settings “CAT (Distance Units)” on page 751 “CAT/NA” on page 752 “SA” on page 753 “Discrete Colors Softkey Menu” on page 754 - Part of Preferences softkey menu. Save and Reset Preferences All preference settings can be made at one time from the Quick Settings table. All settings that can be saved as preferences (except Battery Saver and Startup Mode) can also be made from individual softkey selections throughout the FieldFox menu structure.
Page 743 System Settings Preferences ——On ——Off (default) — Startup Mode (see) — Then Done Edit (for each change in setting) Language Choose the language in which to display FieldFox softkeys and other messages. Select Save Current Settings to set this language as a preference. How to select a Language —...
Page 744 System Settings Display — Then Preferences — Then Preferences — Then scroll to Global Settings > Battery Saver — ON – To conserve battery power, the RF source power is turned OFF at the end of each CAT, NA, and VVM mode sweep. This behavior does not impact FieldFox measurements.
Page 745 System Settings Audio — Then use arrow softkeys or the knob to select Display — Then Edit for each of the following: — Display Colors — Indoor (default) — Night Vision — Outdoor Sun — Outdoor Dusk — Outdoor Clouds —...
Page 746 System Settings Date and Time — Mute ——On ——Off (default) — Volume — 0 to 100 (default is 50) — Then Done Edit (for each change in setting) Date and Time Choose the Date and Time values (Date and Time, Time Format, Date Format, and Time Zone).
Page 747 System Settings — Then Preferences — Then use arrow softkeys or the knob to select GPS — Then Edit for each of the following: — GPS State ——Off (default) ——Internal ——External — Elevation Unit ——Meters (default) ——Feet ——Inches — GPS Sync Lock ——Off (default) ——Internal ——External...
Page 748 System Settings Frequency Reference Frequency Reference When Internal or External is selected, a search is made for satellites overhead. GPS (default) works best when outdoors and in full view of the open sky. See also, “GNSS (GPS+) and GPS” on page 756.
Page 749 System Settings Alpha Numeric Editing — Then Preferences — Then Preferences — Then scroll to User Folder Persist: — User Folder Persist (On/Off) – Defaults to the current Device and folder location at power up. Toggle User Folder Persist On/Off when a new Device location is selected location.
Page 750 System Settings Group Save File Types Editing 2. Press Next Page until is displayed. Quick Save 3. Use arrow keys or knob to scroll down to until your choice is highlighted then choose one or more of the following: — Save/Recall Long Press – Enables/Disables the Quick Save feature. When enabled (default = Off), when the Save/Recall 9 hardkey is held down for ~3 seconds, the specified files are saved to a file with the FFoxData prefix.
Page 751 System Settings CAT (Distance Units) — State (.sta) – Enables/disables .sta files as a group file to be saved when the Quick Save (Save/Recall 9) hardkey is pressed for ~3 seconds. — Image (.png) – Enables/disables .png files as a group file to be saved when the Quick Save (Save/Recall 9) hardkey is pressed for ~3 seconds.
Page 752 System Settings CAT/NA CAT/NA Choose the CAT/NA settings for SnP file save, default factory error corrections, extended cal default. See also “> What Data Processing functions are included in saved SNP Data:” on page 785. How to select CAT/NA defaults: —...
Page 753 System Settings Choose the SA setting for Individual measurement Control default. See also “Alignments” on page 201. How to select SA defaults: — Press System 7 — Then Preferences — Then Preferences — Then use arrow softkeys or the knob to select SA —...
Page 754 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 30-7. Figure 30-7 Display Example: Color Coded Bar Scale (x6 Colors) Using the Discrete Colors Softkey Menu 1.
Page 755 System Settings System Configuration How to Install Options (License File) A license file (*.lic file) must already be on a USB Flash Drive. To learn how to obtain a. license file (*lic file), visit: https://www.keysight.com/us/en/lib/resources/service-manuals/keysight-fi eldfox-library-help-and-manuals-2153870.html. Insert the USB Flash Drive in the FieldFox. —...
Page 756 System Settings System Configuration GNSS (GPS+) and GPS IMPORTANT! The FieldFox may display "Ant OPEN", even when a GPS antenna is connected to the FieldFox. If the GPS antenna is powered by another power supply and has a DC blocking capacitor where the feed is connected to FieldFox, then minimal amounts of current will be drawn from the FieldFox, so the instrument will display "Ant OPEN".
Page 757 System Settings System Configuration — Internal - Enable GPS using Option 307 – Built-in GPS. Connect a GPS antenna to the top-panel GPS connector. Learn more about additional GPS antenna accessories at http://www.keysight.com/find/fieldfox. Internal is set automatically when Frequency Reference Source is set to GPS. Learn more in “Frequency Reference Source”...
Page 758 System Settings System Configuration GPS Status With GPS enabled the following is displayed at the top of the FieldFox screen: The following icons (located in circle above) indicate the GPS lock status: - GPS ON and locked on satellites. - GPS ON, but NOT locked on satellites. - GPS ON, but no GPS receiver is present or detected.
Page 759 System Settings System Configuration — The FieldFox clock is NOT synchronized with GPS. When set to OFF after Sync was ON, the date and time does NOT revert back to the settings before the clock was synchronized. — Display ON OFF Enables or disables displaying Lat/Lon Format and Elevation Units.
Page 760 System Settings System Configuration — A menu opens to enable naming the file you are saving (*.png). More GNSS Settings — Press System 7 — Then System Configuration — Then GNSS Selection — Then choose from the following: — Refer to “How to make GPS settings”...
Page 761 System Settings System Configuration — Then choose from the following: — Internal frequency reference — External frequency reference. Connect the 10 MHz External Reference to the Ref In/Trig In SMA (f) connector on the FieldFox top panel. The FieldFox may take up to 10 seconds to lock to a valid External Reference source —...
Page 762 System Settings System Configuration Reference OUT The internal 10 MHz frequency reference is available from the Ref/Trig output connector on the right-side panel. Use this signal as a common frequency reference when making measurements using external equipment. See this connector in “Top Panel”...
Page 763 System Settings System Configuration — Then Voltage Source. — Then Source ON OFF to enable and disable the voltage source output. — Then Voltage x.xx V Using arrows, the rotary knob, or numeric keypad, enter a value between 0.001 and 32 volts. —...
Page 764 System Settings System Configuration Date and Time, Format, and Time Zone Settings Set the local date and time, Date and Time format, and Time Zone that is shown on the FieldFox screen. The Date and Time is also used to identify files that are saved.
Page 765 System Settings System Configuration BEFORE manually setting the Date and Time, be absolutely certain that the Time Zone setting is correct. — Press System 7 — Then System Configuration. — Then More. — Then Date and Time. — Press the arrows to highlight the row to be edited.
Page 766 System Settings System Configuration Table 30-1 LAN LEDs LAN LEDs Yellow: — Flash, pause = 10 Mbit link speed — Flash, flash, pause = 100 Mbit link speed — Flash, flash, flash, pause = 1 GBit link speed How to configure LAN settings The first three ‘Current...’...
Page 767 System Settings System Configuration — Apply Settings Choose from: — Power Up The above settings take effect when the FieldFox is started. — Now The above settings take effect immediately. To make the LAN settings persist after power up, toggle Apply Settings to Now then back to Power Up.
Page 768 System Settings System Configuration — Then Firmware Update — Then Start Installer — The Installer software opens after a couple of seconds. If no files are displayed, verify that a USB memory or SD Card is installed and press Refresh List.
Page 769 System Settings Service Diagnostics If you backup multiple versions of the user files, the FieldFox appends a “_#” to each subsequently stored file. During restore, the file with the highest appended number is loaded into the FieldFox If your stored any user files to a USB or SD card, this procedure restores those files.
Page 770 System Settings Service Diagnostics — Reflectometer Factory Cal - The Factory (CalReady) Calibration shows the date and time that the factory cal was performed for each test port and the Thru connection. The format is P1 <date time>, P2 <date time>, P1-P2 <date time>.
Page 771 System Settings Service Diagnostics How to Erase User Data — Press System 7. — Then Service Diagnostics. — Then Advanced — Then Erase User Data — Then Confirm Erase — Then the following occurs: — All data files and folders are deleted from the “UserData” partition. —...
Page 772 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 773 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 30-11, Figure 30-12 on page 774, and Figure 30-13 on page 774. If the FieldFox displays a “FanStuck” or “Error: Internal Fan has stopped spinning”...
Page 774 System Settings Understanding the Fan Controls Figure 30-12 Persistent Fan Stuck Error Message Figure 30-13 Fan: Service Message Keysight N9938-90006 User’s Guide...
Page 775 Keysight Handheld Analyzers N99xxB User’s Guide 31 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 775 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 776 Using the Mini-USB Port to send SCPI Commands and Queries Mini-USB Connection to PC with IO Libraries Figure 31-1 Keysight Interactive IO Window Keysight N9938-90006 User’s Guide...
Page 777 Keysight Handheld Analyzers N99xxB User’s Guide 32 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 778: 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 779 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 780 File Management Saving and Recalling Files Figure 32-2 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 keyword to display on the FieldFox screen.
Page 781 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 789. Figure 32-3 The FieldFox labeler In the graphic above, the current filename is File_0.
Page 782 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. — Press Cancel 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 783 File Management Saving and Recalling Files How to move a file — Press Save/Recall 9 — Then Device to be copied from (i.e., Internal, SD, or USB). Refer to “Set File Type and Select Device” on page 783. — Then More —...
Page 784 File Management Saving and Recalling Files — SD Card Saves/Recalls/Moves (Copies) files to/from the SD card (not included), inserted in the card slot. See “Take the FieldFox Tour” on page 38. Only the root folder is available. — Saves/Recalls/Moves (Copies) files to or from a USB Flash drive (not included) that is inserted in one of the USB connectors.
Page 785 File Management Saving and Recalling Files — Data (S1P) / (S2P) Saves CAT and NA Mode trace data to an *.S1P or *.S2P file, depending on the active measurement. This file format is used by CAE programs such as Keysight's Microwave Design System (MDS) and Advanced Design System (ADS).
Page 786 File Management Saving and Recalling Files — Default – SNP data does NOT include smoothing. SNP data saves are taken AFTER data processing (location 2) on the processing chain. — Advanced – SNP data includes the following: — With Smith or Polar display format, SNP data saves are taken BEFORE most processing (location 1 on the data processing chain).
Page 787 File Management Saving and Recalling Files — 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. — Delete — The selected file is deleted. —...
Page 788 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. Press Save/Recall 9 —...
Page 789 File Management Saving and Recalling Files Edit Keywords The preselected keywords (FILE, SITE, and so forth) can be edited to meet your specific needs. Your keywords will remain in the FieldFox until you change them. Keywords are limited to 30 characters. How to edit keywords —...
Page 790 File Management Saving and Recalling Files operation. These settings are persistent, until disabled. Refer to “How to edit the Prefix and Suffix (Auto Append)” on page 790 “How to enable/disable Auto Append (Suffix) ” on page 791. If you are only interested in adding a prefix or a suffix to a new file or files one time, refer to “Manage Files”...
Page 791 File Management Saving and Recalling Files — Number Suffix Reset to reset Auto Append number to “_001”. — Prefix — to disable the prefix. The Prefix softkeys are grayed out (inactive). Refer to How to enable/disable the Prefix (persistent) in “How to enable/disable the Prefix (persistent)”...
Page 792 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 793 Keysight Handheld Analyzers N99xxB User’s Guide 33 Working with the Lithium-Ion Battery In this Chapter “Viewing the Battery Charge Status” on page 793 “Charging the Battery” on page 795 “Reconditioning Battery” on page 798 “Battery Care” on page 798 “Maximizing Battery Life” on page 798 “Lithium-Ion Battery Disposal”...
Page 794 Working with the Lithium-Ion Battery Viewing the Battery Charge Status Table 33-1 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 795 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 5 segments ≥80% 4 segments ≥75% 4 segments 60% to 79% 3 segments 50%,to 74% 3 segments...
Page 796 Working with the Lithium-Ion Battery Charging the Battery Figure 33-1 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 797 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 805 Figure 33-2 External Battery Charger (N9910X-872) The external battery charger (N9910X–872), lets you charge a fully depleted battery in approximately three hours.
Page 798 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 799 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 800 Working with the Lithium-Ion Battery Lithium-Ion Battery Disposal Keysight N9938-90006 User’s Guide...
Page 801 Keysight Handheld Analyzers N99xxB User’s Guide 34 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 802 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 803 Safety Considerations For the FieldFox Only Keysight approved accessories shall be used. Cleaning connectors with alcohol shall only be done with the instruments power cord removed, and in a well-ventilated area. Allow all residual alcohol moisture to evaporate and the fumes to dissipate prior to energizing the instrument.
Page 804 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 805 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 806 Safety Considerations For the Battery For the Battery Lithium battery packs may get hot, explode, or ignite and cause serious injury if exposed to abuse conditions. This section contains the following: — “High Capacity Lithium Battery (N9910X-876)” — “Standard Capacity Battery (N9910X-870)” Keysight N9938-90006 User’s Guide...
Page 807 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 808 Safety Considerations For the Battery Do not place the battery in direct sunlight, or use or store the battery inside cars in hot weather. Doing so may cause the battery to generate heat, explode, or ignite. Using the battery in this manner may also result in a loss of performance and a shortened life expectancy.
Page 809 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 810 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 811 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 813 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 812 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 813 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 814 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 815 Safety Considerations Environmental Requirements Environmental Requirements Refer to the FieldFox Specifications in “Specifications/Data Sheet” on page 829. 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 816 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 817 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 818 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 819 Safety Considerations Battery Markings GOST, Russia’s safety and EMC mark. 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 820 Safety Considerations Battery 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. 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.
Page 821 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 822 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 823 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 824 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 825 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 826 Safety Considerations Certification and Compliance Statements Keysight N9938-90006 User’s Guide...
Page 827 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 828 Connector Care Review 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 829 Keysight Handheld Analyzers N99xxB 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/assets/7018-06516/data-sheets/5992-37 02.pdf.
Page 830 Specifications/Data Sheet Keysight N9938-90006 User’s Guide...
Page 831 Keysight Handheld Analyzers N99xxB 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 832 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 833 Keysight Handheld Analyzers N99xxB User’s Guide Korean Battery Safety Translation...
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Page 843 Keysight Handheld Analyzers N99xxB User’s Guide Russian Battery Safety Translation...
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Page 855 Keysight Handheld Analyzers N99xxB User’s Guide Keysight Software End-User Licensing Agreement (EULA)
Page 856 Keysight Software End-User Licensing Agreement (EULA) Keysight N9938-90006 User’s Guide...
Page 857 Keysight Software End-User Licensing Agreement (EULA) Keysight N9938-90006 User’s Guide...
Page 858 Keysight Software End-User Licensing Agreement (EULA) Keysight N9938-90006 User’s Guide...
Page 859 Index Numerics AM FM Tune & Listen markings , 166, AM/FM Metrics, error maximizing life 1-port cable loss messages protective functions , 811, measurements AM/FM Metrics, Option safe handling CAT mode saver 1-port cable loss, CAT AM/FM Metrics,error service diagnostics mode messages viewing charge status...
Page 860 Index 2-port insertion loss colors red flashing LED, external measurements front panel battery charger calibration preferences red red flashing LED, external DTF settings settings battery , 66, 78, 91, 115, return loss measurements display "live" and memory charger settings traces systematic , 51, 533, CAT mode measurements...
Page 861 Index step size 2-port insertion loss sweep time Frequency Counter at SA measurement sweep type , 55, Marker , 212, trace averaging , 54, 55, frequency extender DTF measurements , 64, 722, settings video BW , 183, viewing and changing manage files Frequency Offset Using Power measure return loss...
Page 862 Index measurement,parameters Mapping,Record/Playback 1-port cable loss marker measurements, CAT measurements,about table mode measurements,how to markers 1-port cable loss, CAT make Coupled (NA Mode) mode trace display states creating 2-port insertion loss, CAT IQA mode delta mode settings moving bridge cancellation, VVM IQA, Captrure Data search function mode...
Page 863 Index printing protection, high NA Factory Cal temperature NA mode settings , 417, protective functions of the calibration PAA mode battery settings settings , 91, 94, Pulse Measurements name files packaging markings network analyzer panel, front noise figure, calibration panel, left side noise figure, option 356 panel, right side Quick Settings...
Page 864 Index Restart date and time acquisition parameter , 198, 267, 327, , 184, restart display colors , 198, 267, 327, 185, return loss measurements, CAT display units time mode output power time, NA mode review connector care set up,EMF type , 55, reviewconnector care settings...
Page 865 Index bridge cancellation measurements units, changing , 73, settings units, DTF, changing VVM mode, settings USB antenna measurements,about measurements,how to make Waterfall Display , 229, , 514, settings Waveguide Calibrations USB antenna mode where to find the latest settings information , 226, USB antennas Window Settings...
Page 866 Index Keysight N9938-90006 User’s Guide...
Page 868 This information is subject to change without notice. © Keysight Technologies 2014-2022 Edition 1, February 2022 www.keysight.com...

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