Keysight FieldFox A Series User Manual

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User's Guide

Keysight

A-Series FieldFox Analyzers

This manual provides documentation for the following models:

N9913A, N9914A, N9915A, N9916A, N9917A, N9918A N9925A,

N9926A, N9927A, N9928A

N9935A, N9936A, N9937A, N9938A

N9950A, N9951A, N9952A

N9960A, N9961A, N9962A

Table of Contents

Troubleshooting

Summary of Contents for Keysight FieldFox A Series

Page 1 User's Guide Keysight A-Series FieldFox Analyzers This manual provides documentation for the following models: N9913A, N9914A, N9915A, N9916A, N9917A, N9918A N9925A, N9926A, N9927A, N9928A N9935A, N9936A, N9937A, N9938A N9950A, N9951A, N9952A N9960A, N9961A, N9962A...
Page 2 Notices DOCUMENT THAT CONFLICT WITH writing elsewhere in the EULA. 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.
Page 3 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 Information on preventing instrument damage can be found at: www.keysight.com/find/PreventingInstrumentRepair...
Page 4 A.08.19 Firmware Release (CPU1) Updates (N991xA/2xA/3xA with serial number prefixes <5607) For customers upgrading FieldFox firmware, the following is a list of changes from the previous release: Other updates: — Fix to FAB USB access A.11.26 Firmware Release (CPU2) Updates (Also, applies to: ≥...
Page 5 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. With this information, the Keysight representative can determine whether your product is still...
Page 7: Table Of Contents
Averaging ............. . 50 Keysight N9927-90001 User’s Guide...
Page 8 How to Prevent Undersampling ..........83 6. NA (Network Analyzer) Mode Keysight N9927-90001 User’s Guide...
Page 9 Trace Settings ............. 117 Keysight N9927-90001 User’s Guide...
Page 10 External Gain ............154 Keysight N9927-90001 User’s Guide...
Page 11 How to select RTSA Mode ..........207 Keysight N9927-90001 User’s Guide...
Page 12 Band/Interval Power Marker ..........257 Keysight N9927-90001 User’s Guide...
Page 13 About Sessions ............313 Keysight N9927-90001 User’s Guide...
Page 14 Limits ..............344 18. Frequency Offset Using Power Sensor (FOPS) – Option 208 Keysight N9927-90001 User’s Guide...
Page 15 Output Power ............375 Keysight N9927-90001 User’s Guide...
Page 16 Using Noise Figure............436 Keysight N9927-90001 User’s Guide...
Page 17 Build From Trace............500 Keysight N9927-90001 User’s Guide...
Page 18 How to set File Folders ...........522 Keysight N9927-90001 User’s Guide...
Page 19 Charging the Battery ............561 Keysight N9927-90001 User’s Guide...
Page 20 ............... . .588 B:.Specifications/Data Sheet Keysight N9927-90001 User’s Guide...
Page 21 ............... . 604 F:. Keysight Software End-User Licensing Agreement (EULA) .
Page 22 Keysight N9927-90001 User’s Guide...
Page 23: Overview
Keysight Handheld Analyzers N99xxA User’s Guide Overview Models and Options Table 1-1 Models Model Max Freq Description (GHz) N9913A Vector Network Analyzer AND Spectrum Analyzer N9914A Vector Network Analyzer AND Spectrum Analyzer N9915A Vector Network Analyzer AND Spectrum Analyzer N9916A...
Page 24: Accessories
17 mm torque wrench N9910X-876 Lithium-Ion Battery (High Capacity) Although not supplied, a USB keyboard and mouse CAN be used with the FieldFox. To see a complete list of accessories that are available for the FieldFox, please visit: http://www.keysight.com/find/fieldfox. Keysight N9927-90001 User’s Guide...
Page 25: Fieldfox Manuals, Software, And Supplemental Help
Denotes a hazard. It calls attention to a procedure that, if not correctly performed or adhered to, would result in damage to or destruction of the product. Do not proceed beyond a caution note until the indicated conditions are fully understood and met. Keysight N9927-90001 User’s Guide...
Page 26 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. Keysight N9927-90001 User’s Guide...
Page 27: Preparing For Initial Use Of Your New Fieldfox
FieldFox. Various AC power cables are available from Keysight that are unique to specific geographic areas. You can order additional AC power cables that are correct for use in different areas. For the power cord part number information please visit: http://www.keysight.com/find/fieldfox...
Page 28: Install The Lithium-Ion Battery
Chapter 29, “Working with the Lithium-Ion Battery”, on page 559. Battery charge status is viewable: — In the upper-right corner of the screen. — On the Battery screen. To access the screen, select System, Service Diagnostics, and Battery. Keysight N9927-90001 User’s Guide...
Page 29: Fieldfox On/Off Settings
— To turn power ON, briefly press the power button. Boot-up takes about 1 minute. — To switch to Standby mode (low battery drain), briefly press the power button. See the Note above concerning Stand By. Keysight N9927-90001 User’s Guide...
Page 30: Power Button Led Status
FieldFox. Do NOT store the FieldFox in the soft-case while powered ON or in Standby mode. How to monitor the internal FieldFox temperature: — Press System, then Service Diagnostics. — Then Internal Temperatures. Keysight N9927-90001 User’s Guide...
Page 31: Temperature Control 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: Keysight N9927-90001 User’s Guide...
Page 32 2-2). See also, Table 2-1 on page When you exit the Auto Protect (Maximum) Threshold control mode, the following message is displayed: "Temperatures reduced, exiting Maximum Auto Protect mode" Figure 2-2 Exiting Maximum Auto Protect mode message—(~62.5°C) Keysight N9927-90001 User’s Guide...
Page 33: High-Temp Shutdown Warning (Rtsa Mode Only)
~75.5°C. At above ~78°C, High-Temperature Shut down will engage and turn OFF the FieldFox. Refer to Figure 2-3. See also, Table 2-1 on page Figure 2-3 Shutdown Warning message—(above ~77°C) - (RTSA Mode Only!) Keysight N9927-90001 User’s Guide...
Page 34: Avoid Overpowering The Fieldfox
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. Keysight N9927-90001 User’s Guide...
Page 35: Take The Fieldfox Tour
Preparing for Initial Use of Your New FieldFox Take the FieldFox Tour Take the FieldFox Tour Front Panel Keysight N9927-90001 User’s Guide...
Page 36 Displays a sub-menu for marker functions “All about Markers” page 484 Exits and closes the Active Entry dialog box or clears the character input Save/Recall Saves the current trace or recalls saved data from memory “Saving Recalling Files” on page 544 Keysight N9927-90001 User’s Guide...
Page 37 Alternative color modes exist that maximize viewing in direct sunlight conditions, as well as other conditions such as nighttime work. Clean the Transflective screen with gentle and minimal wiping using Isopropyl alcohol applied to a lint-free cloth. Keysight N9927-90001 User’s Guide...
Page 38: Top Panel
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 535 Download the latest version of the software at: www.keysight.com/find/fieldfoxsupport Keysight N9927-90001 User’s Guide...
Page 39 Two standard USB connectors used to connect a power sensor for Power “Saving and Recalling Meter Mode. Also used to save files to a USB flash drive. Files” on page 544 IMPORTANT! It is recommended that only USB certified cables are used with the FieldFox. Keysight N9927-90001 User’s Guide...
Page 40: Left Side Panel
DC Voltage Source for use with external DC Bias. “Variable Voltage Source (Opt. 309)” on page 532 DC power connector used to connect to the AC/DC adapter. Maximum: 19 “Internal Charging with VDC, 4 ADC. the AC/DC Adapter ” on page 561 Keysight N9927-90001 User’s Guide...
Page 41: Screen Tour
Data / Mem Display (CAT and NA) “All about Trace Math” Step / FFT (SA) on page 504 “Resolution Bandwidth (Res BW)” on page 165 Resolution Setting Mode dependent Measurement Start Freq or Distance Mode dependent Keysight N9927-90001 User’s Guide...
Page 42 “Date and Time” on page 521 Marker Readout “All about Markers” on page 484 Battery Status “Viewing the Battery Charge Status” on page 559 Measurement Type (CAT and NA) acquisition Mode dependent Reference Position Mode dependent Keysight N9927-90001 User’s Guide...
Page 43: How To Enter Numeric Values
Select Frequency multipliers as follows: — Gigahertz (1e9 Hertz) — Megahertz (1e6 Hertz) — Kilohertz (1e3 Hertz) — Hertz Select Time multipliers as follows: — Seconds — milliseconds (1e–3) — microseconds (1e–6) — nanoseconds (1e–9) — picoseconds (1e-12) Keysight N9927-90001 User’s Guide...
Page 44: Connector Care
In addition, a dirty or damaged connector can destroy connectors that are mated to it. For this reason, NEVER use a damaged connector. See also http://na.support.keysight.com/pna/connectorcare/Connector_Care.htm Keysight N9927-90001 User’s Guide...
Page 45: Cat (Cable And Antenna Test) Mode
Keysight Handheld Analyzers N99xxA 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. Learn more in the Supplemental Online Help: http://na.support.keysight.com/fieldfox/help/SupHelp/F...
Page 46 Chapter 8, “Calibration for NA, CAT, and VVM Modes”, on page 121 “All about Markers” on page 484 “All about Limit Lines” on page 499 “All about Trace Math” on page 504 Making 75Ω (ohm) Measurements at the FieldFox Supplemental Online Help: http://na.support.keysight.com/fieldfox/help/SupHelp/FieldFox.htm Keysight N9927-90001 User’s Guide...
Page 47: Cat Mode Settings
The higher the trace is on the screen, the more energy being reflected back to the FieldFox. — DTF (VSWR) Distance to Fault in VSWR format. Keysight N9927-90001 User’s Guide...
Page 48: Quick Settings Table
Settings table to a position relative to the trace window. The Dock Window setting persists through a Preset. Choose from the following — Full (Default setting) Only the Settings table is shown on the screen. The trace window is temporarily not shown Keysight N9927-90001 User’s Guide...
Page 49: Frequency Range
Automatically adjusts the Y-axis to comfortably fit the Minimum and Maximum amplitude of the trace on the screen. 2. Set Scale, acquisition, and Reference Position: — Scale Manually enter a scale per division to view specific areas of the trace Keysight N9927-90001 User’s Guide...
Page 50: Averaging
To achieve the highest dynamic range, select NA mode and reduce the IF Bandwidth setting. Learn more about dynamic range in “Increase Dynamic Range” on page 107 How to set Trace Averaging — Press BW 2. Keysight N9927-90001 User’s Guide...
Page 51: Smoothing
--> while the sweep occurs — 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. Keysight N9927-90001 User’s Guide...
Page 52: Resolution (Number Of Data Points)
Chapter 1, “Overview.” How to set Sweep Time — Press Sweep 3. — Then Min Swp Time. — Enter a value using the numeric keypad. — Press a multiplier key. Learn more in “Multiplier Abbreviations” on page Keysight N9927-90001 User’s Guide...
Page 53: Output Power
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. While monitoring a measurement at a specific frequency, Keysight N9927-90001 User’s Guide...
Page 54: Coupled Frequency
Start or Stop frequency is selected, Coupled Frequency is automatically set to OFF. — 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 N9927-90001 User’s Guide...
Page 55: Return Loss Measurements
A deteriorated cable is not usually apparent in a Distance to Fault measurement, where more obvious and dramatic problems are identified. A Cable Loss measurement is necessary to measure the accumulated losses throughout the length of the cable. Keysight N9927-90001 User’s Guide...
Page 56: How To Make A 1-Port Cable Loss Measurement
11.Press Trace 6 then Math and Memory then Data->Mem to store the trace into Memory. 12.Remove the LOAD and leave the end of the cable to be tested open. Keysight N9927-90001 User’s Guide...
Page 57: 2-Port Insertion Loss Measurements
— Connect the DUT and view the insertion loss measurement results. When measuring very long lengths of cable, it may be necessary to increase the sweep time. Learn how on page 52. Learn why in the Supplemental Online Help: http://na.support.keysight.com/fieldfox/help/SupHelp/FieldFox.htm Keysight N9927-90001 User’s Guide...
Page 58 CAT (Cable and Antenna Test) Mode 2-Port Insertion Loss Measurements Keysight N9927-90001 User’s Guide...
Page 59 Keysight Handheld Analyzers N99xxA 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).
Page 60: Dtf (Distance To Fault) Measurements How To Make Dtf Measurements
“How to Perform a Calibration” on page 123. 7. Disconnect any components or antenna that should NOT be measured and connect a LOAD at the end of the DUT. 8. Press Meas Setup 4 then DTF Cable Specifications. Keysight N9927-90001 User’s Guide...
Page 61 10. Connect the start end of the DUT to the FieldFox. 11. Press Meas Setup 4 then Settings then Next Page. If the Alias-free Range setting is False, then you may see Alias faults on the screen. Learn more page Keysight N9927-90001 User’s Guide...
Page 62: Dtf Measurement Settings
Faults are displayed on the Y-axis in return loss format, expressed as a positive number in dB. — DTF (VSWR) Faults are displayed on the Y-axis in SWR. Learn more about SWR at the FieldFox Supplemental Online Help: http://na.support.keysight.com/fieldfox/help/SupHelp/FieldFox.ht Keysight N9927-90001 User’s Guide...
Page 63: Dtf Start And Stop Distance
Frequency Mode — Choose one of the following: — Lowpass The frequency range of a DTF measurement is set automatically based on the Start and Stop Distances. Use Lowpass mode when the DUT is a cable ONLY. Keysight N9927-90001 User’s Guide...
Page 64: Coupled Frequency
Coupled Frequency When a Return Loss & DTF measurement is present, this setting allows you to have different frequency ranges for each measurement. Learn more in “Coupled Frequency” on page Keysight N9927-90001 User’s Guide...
Page 65: Cable (Correction) Specifications
Cable Loss and Velocity factor can be entered using one of the following methods: — Manually enter cable loss and velocity factor for the measurement. — Select or create a cable file which contains the cable loss and velocity factor. With a DTF measurement present: Keysight N9927-90001 User’s Guide...
Page 66 “How the Freq/Loss pairs are applied” below. — Optionally choose from the following: — Previous / Next Page Quickly scrolls through pages of Freq/Loss data. — Add Data Add a blank Freq/Loss pair to the table, Keysight N9927-90001 User’s Guide...
Page 67 When the cable file contains two or more Freq/Loss pairs, the Loss value that is used is interpolated from the Freq/Loss pairs and the DTF center frequency. For example, using a cable file with the following Freq/Loss pairs: 1 GHz: 0.1 dB/m 2 GHz: 0.2 dB/m Keysight N9927-90001 User’s Guide...
Page 68: Window Settings
(Default setting) — Medium – Compromise between Minimumand Maximum window settings. — Minimum – Best Response Resolution, providing the ability to resolve between two closely-spaced responses. — Then press Done Edit. — Again press Done. Keysight N9927-90001 User’s Guide...
Page 69: Dtf Units
An alias fault is not a true device response. An alias fault appears because of the method used to convert frequency to time. On the DTF Settings page (above) the c - Alias-free Range = Off setting indicates alias images MAY appear on the screen. Keysight N9927-90001 User’s Guide...
Page 70 FieldFox. Re-reflections are measured at the FieldFox as mirror images of the original faults. The largest fault is the open end of the cable. To avoid confusion, set the Stop distance shortly after that fault. Keysight N9927-90001 User’s Guide...
Page 71: Tdr (Time Domain Reflectometry) - Option
Keysight Handheld Analyzers N99xxA 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.
Page 72 “How to Perform a Calibration” on page 123. 7. Disconnect any components or antenna that should NOT be measured and connect a LOAD at the end of the DUT. 8. Press Meas Setup 4 then DTF Cable Specifications. Keysight N9927-90001 User’s Guide...
Page 73 10. Connect the start end of the DUT to the FieldFox. 11. Press Meas Setup 4 then Settings then Next Page. If the Alias-free Range setting is Off, then you may see Alias faults on the screen. Learn more in “About Alias Faults” on page 82 Keysight N9927-90001 User’s Guide...
Page 74: Tdr Measurement Settings
Then press Enter or select a suffix if available. — Other settings require you to press Edit, then press a softkey to change the value. — When finished changing a value, press Done Edit. Keysight N9927-90001 User’s Guide...
Page 75: Tdr Start And Stop Distance
Enter a value between the start distance and 5 km (or 16,404 ft.) using the numeric keypad, the arrows, or the rotary knob, then Enter. TDR Sweep This setting allows you to choose the method by which the Stop Frequency and Resolution are set. Keysight N9927-90001 User’s Guide...
Page 76: Frequency Mode
Start and Stop Distances. Use Lowpass mode when the DUT is a cable ONLY. — Bandpass This setting changes the measurement to DTF. Bandpass is NOT ALLOWED with TDR because the DC component is required for TDR measurements. Keysight N9927-90001 User’s Guide...
Page 77: Cable (Correction) Specifications
— Manually enter cable loss and velocity factor for the measurement. — Select or create a cable file which contains the cable loss and velocity factor. With a TDR measurement present: — Press Meas Setup 4. Keysight N9927-90001 User’s Guide...
Page 78 Previous / Next Page Quickly scrolls through pages of Freq/Loss data. — Add Data Add a blank Freq/Loss pair to the table, — Delete/Clear then: — Delete Row Remove the selected Freq/Loss pair from the table. Keysight N9927-90001 User’s Guide...
Page 79 The center frequency for the measurement is determined from the calculated (Stop – Start) frequency values (seen on the second page of TDR Settings): Calculated Start = 2.0 MHz Calculated Stop = 3.598 GHz Center Freq = 1.80 GHz Keysight N9927-90001 User’s Guide...
Page 80: Window Settings
(Default setting) — Medium – Compromise between Min and Max window settings. — Minimum – Best Response Resolution, providing the ability to resolve between two closely-spaced responses. — Then press Done Edit. — Again press Done. Keysight N9927-90001 User’s Guide...
Page 81: Tdr Units
The TDR Units setting is also available on the TDR Settings table. Calculated TDR values Press Next Page on the TDR Settings Table to view the following calculated Values noted on the FieldFox screen with c - <setting> Keysight N9927-90001 User’s Guide...
Page 82: About Alias Faults
A true fault response will not move in distance. That is, if a true fault is present at 10.3 meters, changing the stop distance from 15 m to 20 m will not move the fault; the fault will remain at 10.3 meters. However, an alias response will appear to move. Keysight N9927-90001 User’s Guide...
Page 83: How To Prevent Undersampling
To prevent undersampling, set TDR Sweep to Cable. If undersampling still occurs, set TDR Sweep to Auto. Then set Auto Max Frequency to a lower value. Manually increase the Resolution so that the Start Frequency setting is less than about 500 kHz. Keysight N9927-90001 User’s Guide...
Page 84 TDR (Time Domain Reflectometry) - Option 215 TDR Measurement Settings Keysight N9927-90001 User’s Guide...
Page 85: Na (Network Analyzer) Mode
Keysight Handheld Analyzers N99xxA 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 87 “Mixed-Mode S-Parameters” on page 88 “Parameter Conversion” on page 89 “Receiver Measurements”...
Page 86 “Why and When to Calibrate” on page 122 “All about Markers” on page 484 “All about Limit Lines” on page 499 “All about Trace Math” on page 504 Learn how to make 75Ω (ohm) Measurements in the Supplemental Online Help: http://na.support.keysight.com/fieldfox/help/SupHel p/FieldFox.htm Keysight N9927-90001 User’s Guide...
Page 87: Na Mode Settings
When the source comes from port 2, the measurement is said to be in the reverse direction S11 and S22 reflection measurements are used to measure the amount of reflections off the corresponding DUT port. Low reflections means there is a good impedance match between the source and DUT. Keysight N9927-90001 User’s Guide...
Page 88: Mixed-Mode S-Parameters
Because the FieldFox has only two test ports, only reflection measurements are available. Connect the balanced input or output of your DUT to the FieldFox ports 1 and 2 For highest accuracy, a Full 2-port calibration is required. Keysight N9927-90001 User’s Guide...
Page 89: Parameter Conversion
S21 and S12. When the S-parameter is changed, the appropriate conversion changes automatically. ——Refl The displayed S-parameter is converted to Z or Y reflection, regardless of whether the S-parameter is reflection (S11 or S22) or transmission (S21 or S12). Keysight N9927-90001 User’s Guide...
Page 90: Receiver Measurements
The FieldFox sets the source port based on the selected receiver. —Port 1 Select when measuring transmission at B receiver. —Port 2 Select when measuring reverse transmission at A receiver. Learn more about Raw Receiver Measurements at the FieldFox Supplemental Online Help: http://na.support.keysight.com/fieldfox/help/SupHelp/FieldFox.htm Keysight N9927-90001 User’s Guide...
Page 91: Multi-Trace Configurations
IMPORTANT! For CAT and NA modes, limit lines do not apply where F1 = F2. — By default, a marker is created on ALL traces. However, they can be created individually by disabling Coupled Markers. Learn more in “Coupled Markers (NA Mode)” on page 487 Keysight N9927-90001 User’s Guide...
Page 92: Quick Settings
Both CAT and NA Modes allow you to view and change most relevant settings from a single location. All of these settings are discussed in this chapter and, unless otherwise noted, ALL of these settings can also be made using the standard softkey menus. Keysight N9927-90001 User’s Guide...
Page 93: Calibration Settings
“Waveguide Calibrations” on page 137. How to view and change Calibration Settings — Press Meas Setup 4. — Then Calibration Settings — Make these settings in the same manner as Quick Settings in the previous section. Keysight N9927-90001 User’s Guide...
Page 94: Format
——Learn more about Group Delay measurements at the FieldFox Supplemental Online Help: http://na.support.keysight.com/fieldfox/help/SupHelp/FieldF ox.htm —Real Displays only the real (resistive) portion of the measured complex data. The Y-axis is Unitless. Often used for Time Domain measurements. Keysight N9927-90001 User’s Guide...
Page 95: Frequency Range
Abbreviations” on page 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. Keysight N9927-90001 User’s Guide...
Page 96: Magnitude Offset
The Magnitude offset setting affects only the active trace. How to set Magnitude Offset — Press Scale / Amptd — Then More — Then Magnitude Offset - Offsets the entire data trace by the specified value. Keysight N9927-90001 User’s Guide...
Page 97: Electrical Delay
360°. Use this feature in the following ways: Improve the display of a phase measurement. This is similar to the way you would change the acquisition in an amplitude measurement. Change the phase response to center or the response on the screen. Keysight N9927-90001 User’s Guide...
Page 98: Averaging
<n> consecutive sweeps. The average counter shows the number of previous sweeps that have been averaged together to form the current trace. When the counter reaches the specified count, then a ‘running average’ of the last <n> sweeps is displayed. Keysight N9927-90001 User’s Guide...
Page 99: If Bandwidth
When enabled, appears on the FieldFox screen. How to set Smoothing — Press BW 2 — Then Smoothing ON OFF — Then Sm. Aperture and enter a value between 0 and 25 (percent) using the numeric keypad. Keysight N9927-90001 User’s Guide...
Page 100: Single Or Continuous Measure
— Then choose from the following: 101 |201 1001 1601 4001 | 10001. — Using SCPI, Resolution can be set to ANY number of points between 3 and 10001. See the Programming Guide at http://na.support.keysight.com/fieldfox/help/Programming/webhelp/FFP rogrammingHelp.htm Keysight N9927-90001 User’s Guide...
Page 101: Sweep Time
TTL signal at the Ref In/Trig In connector on the FieldFox top panel. ——When the FieldFox is armed for an external trigger signal, Wait is annotated on the display. ——A sweep can NOT be initiated by an external signal while a sweep is in progress. Keysight N9927-90001 User’s Guide...
Page 102: Output Power
Output power is NOT FLAT across the displayed FieldFox frequency span. Please see “Specifications/Data Sheet” on page 589 for expected power levels. — Low Sets output power to approximately –45 dBm, FLAT across the displayed FieldFox frequency span. Keysight N9927-90001 User’s Guide...
Page 103: System Impedance (Z0)
Also use port extensions if you have already performed a calibration, and then decide that you need to add a length of transmission line in the measurement configuration. Use port extensions to “tell” the FieldFox that you have added the length to a specific port. Keysight N9927-90001 User’s Guide...
Page 104: Velocity Factor
The electrical delay or port extension value is entered as delay, or electrical length, in units of time. Entering the velocity factor causes the FieldFox to accurately display the equivalent physical length in meters (NOT available in feet) that corresponds to the entered electrical delay. Keysight N9927-90001 User’s Guide...
Page 105: Big Marker Display States (A And B)
Edit Big Marker (A or B) — Then edit the following display state settings: — Num Traces – Choose the Multi-Trace configuration x1, x2, or x3. Only Overlayed configurations are allowed. Learn more in “Multi-Trace Configurations” on page Keysight N9927-90001 User’s Guide...
Page 106 Lin using the standard menu (Meas 1, Format), the setting will show on the display. But if you then use the Big Readout (A | B | OFF) setting, when B is recalled, the Lin setting will be overwritten with the original Log setting. Keysight N9927-90001 User’s Guide...
Page 107: Increase Dynamic Range
The results you see will depend on the performance of your DUT. With an S21 trace active: 1. With RF OUT (port-2) open, press Trace 6 then Math and Memory then Data->Mem 2. Re-connect the DUT. 3. Press Data Math then Data-Mem Keysight N9927-90001 User’s Guide...
Page 108 NA (Network Analyzer) Mode NA Mode Settings Keysight N9927-90001 User’s Guide...
Page 109 Keysight Handheld Analyzers N99xxA 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 110: Time Domain - Option 010
Time Domain – Option 010 Gating Settings “Start, Stop, Center, and Span Gate Times” on page 119 “Gating Type” on page 119 Keysight N9927-90001 User’s Guide...
Page 111: Overview
“Gating” on page 118. Markers that are created on a Time Domain trace can be used to pinpoint the distance of the mismatch from the reference plane. For more information on Time Domain theory, see http://literature.cdn.keysight.com/litweb/pdf/5989-5723EN.pdf Keysight N9927-90001 User’s Guide...
Page 112: Time Domain (Transform) Settings
Inverse Fourier Transform (IFT), time is calculated. Select the frequency range from which Time Domain measurements are calculated. Increasing the data points will improve measurement resolution. However, more data points will usually result in slower sweep updates. Set frequency range and points before selecting Stimulus Mode. Keysight N9927-90001 User’s Guide...
Page 113: Stimulus (Mode)
How to set Start and Stop time — Press Measure Setup 4 — Then Transform — Then Transform Start Stop Keysight N9927-90001 User’s Guide...
Page 114: Distance Units
Time Domain response. The Window setting reduces the abruptness of the frequency domain transitions. This causes you to make a trade off in the Time Domain response. Keysight N9927-90001 User’s Guide...
Page 115: Line Loss And Velocity Factor
Line Loss and Velocity Factor By default, the FieldFox does NOT correct Time Domain measurements to account for the inherent loss of a cable. However, to make more accurate measurements, Line Loss and Velocity Factor should be considered. Keysight N9927-90001 User’s Guide...
Page 116: Data Chain
— Standard – The normal FieldFox data processing chain. Transform calculations are performed AFTER error correction and trace math. — 8510 – The data processing chain used by the Keysight 8510 network analyzer. Transform calculations are performed BEFORE error correction and trace math.
Page 117: Trace Settings
Enable Gating for the specific trace. — Select the trace. — Press Measure Setup 4 — Then Transform — Then choose from: — Gating On Trace displays Time Domain data. — Gating Off Trace displays frequency domain data. Keysight N9927-90001 User’s Guide...
Page 118: Gating
The following image shows how gating can affect measurement results. All 4 traces show the same S11 measurement. Trace 1 shows the frequency response without gating enabled. Trace 2 shows the transform response without gating enabled. Trace 3 shows the transform response with gating enabled. Keysight N9927-90001 User’s Guide...
Page 119: How To Make Time Domain Gating Settings
The gate start and stop flags on the display point toward the part of the trace you want to keep. Choose from the following: — Bandpass KEEPS the responses within the Gating Start and Stop times. — Notch REMOVES the responses within the Gating Start and Stop times. Keysight N9927-90001 User’s Guide...
Page 120 If you specify a gate span that is smaller than the minimum span, the response will show the following effects: — distorted gate shape that has no passband — distorted shape — incorrect indications of start and stop times — may have increased sidelobe levels. Keysight N9927-90001 User’s Guide...
Page 121: Chapter 8, "Calibration For Na, Cat, And Vvm Modes
Keysight Handheld Analyzers N99xxA 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 122: Calibration For Na, Cat, And Vvm Modes
DUT port during some measurements. — SHORT and OPEN standards both cause 100% of an RF signal to be reflected. The difference between these two standards is what happens to the phase of the reflected signal, which is beyond the Keysight N9927-90001 User’s Guide...
Page 123: Calready
When performing a calibration that contains a large number of points (5000 to 10,001 points) be aware that the calibration progress bar may not move for 2 or 3 minutes during the calibration process. In CAT, NA, or VVM Mode, press Cal 5. Keysight N9927-90001 User’s Guide...
Page 124 The OFF state reverts to CalReady. — View Cal – Shows the properties of the current calibration. Learn more in “View Cal” on page 134. — More – Learn about Cal Ready Properties in “CalReady” on page 123. Keysight N9927-90001 User’s Guide...
Page 125: Quickcal (N991Xa/2Xa/3Xa Only)
DUT. Although there is no Cal Kit required, selecting the connector type (limited to Type-N and 7/16) and gender from the list provides an accurate OPEN model which means a more accurate calibration. If the DUT connector type is not listed, select Unknown/Other. Keysight N9927-90001 User’s Guide...
Page 126 Measure under the following conditions: — When a jumper cable has too much loss. If a ‘Cal Failed’ error appears and you skipped the Load measurement, then perform the Cal again but include measuring the Load. Keysight N9927-90001 User’s Guide...
Page 127: 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,” available online at http://literature.cdn.keysight.com/litweb/pdf/5989-4840EN.pdf Visit www.keysight.com/find/fieldfoxsupport...
Page 128 — Press Change DUT Connectors to select the correct connector types that are on your DUT. — For each port: — Use the arrows or rotary knob to change the DUT connector type. Keysight N9927-90001 User’s Guide...
Page 129 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. Click Cal Kits. — Follow the Cal Wizard prompts. Connect the specified standard at the point where the DUT will be connected, then press Measure.
Page 130: Ecal
Learn more in “Calibration Type” on page 134. All Keysight USB ECal modules are supported. ECal modules are available in a variety of connector types, covering many frequency ranges. For information about available ECal modules, see http://www.keysight.com/find/ecal...
Page 131 Mechanical Cal Setup page of the CalWizard. However, a User Characterization can NOT be PERFORMED using the FieldFox. It must be performed using a bench top Keysight VNA, such as the PNA or ENA. Learn more about User Characterization at the PNA Help website: http://na.support.keysight.com/pna/help/latest/S3_Cals/ECal_User_Charact...
Page 132: Simple Response Cals
CalReady are updated by the measured Short or Open that is used during the calibration. 1-port response cals are also available from the Mechanical Cal menu. Learn more in “Calibration Type” on page 134. Keysight N9927-90001 User’s Guide...
Page 133 User Cal (Ex: Response Cal) is correcting ONLY the appropriate measurement. For example, when an Open Response Cal on Port 2 is performed, CAL ON U is shown for an S22 measurement only. Keysight N9927-90001 User’s Guide...
Page 134: View Cal
S-parameters. However, there may be times when you may want a little more accuracy or a little faster sweep time. The following information can help you learn about the various calibration choices. Keysight N9927-90001 User’s Guide...
Page 135 S-parameters Corrected: S11 or S22 Standards: OPEN, SHORT, LOAD Sweeps in ONE direction. FULL 2-Port (May require an option) Most comprehensive calibration. Corrects all S-parameters DUT: Non-Insertable or Insertable Standards: OPEN, SHORT, LOAD on BOTH ports. Any THRU between ports. Keysight N9927-90001 User’s Guide...
Page 136 “Calibration Type” on page 134) but NOT as good as full 1-port cal. Corrects either S11 or S22. Can be used with Isolation (see following section). Learn more in “Simple Response Cals ” on page 132 Keysight N9927-90001 User’s Guide...
Page 137: Isolation Step
However, most coax mechanical Cal Kits have standards that can be used over a very wide frequency range. Waveguide Cal Kits are used over a narrow frequency range. Therefore, it is VERY IMPORTANT to set the frequency range Keysight N9927-90001 User’s Guide...
Page 138 Otherwise, an error message will appear during the ‘Calculating Steps’ portion of the calibration. Waveguide Cal Kits Keysight sells two waveguide Cal Kit series: the premium 11644A series and the economy N9911X series. Both are available online at www.Keysight.com Effective Velocity Factor Velocity factor is the speed at which an electromagnetic signal passes through the transmission medium relative to the speed of light.
Page 139: Enhanced Response Optimization
(S21) and reverse (S12) directions. A cable is a reciprocal device. This choice provides the best correction for reciprocal devices. However, S11 measurements on non-reciprocal devices will appear to have more return loss than the non-reciprocal choice. Keysight N9927-90001 User’s Guide...
Page 140: Interpolation
After performing any type of calibration, you can save the FieldFox settings along with the calibration into a STATE (*.sta) file. These settings and calibration can then be recalled as necessary. To learn how, see “Saving and Recalling Files” on page 544. Keysight N9927-90001 User’s Guide...
Page 141: Calready Properties
Data & Memory. — Press Cal 5 then More — Select a CalReady Cal to compare with the current setting. — Press Esc to exit the cal menu. — View the differences in the two traces. Keysight N9927-90001 User’s Guide...
Page 142: Verifying Calibration And Jumper Cable Integrity
— If the measurement trace is relatively stable, the jumper cable is of good quality. — If you observe significant movement in the peaks of the measurement trace when moving the cable (>5 dB), the jumper cable may need to be replaced. Keysight N9927-90001 User’s Guide...
Page 143: Calibration Method Summary
— When the temperature changes more than about 10°F (5°C) — When the connection to the DUT requires a different jumper cable or adapters. — When any of the following measurement settings change: Frequency Range, Power Level, IF BW, and Resolution. Keysight N9927-90001 User’s Guide...
Page 144 Calibration for NA, CAT, and VVM Modes Calibration Method Summary Keysight N9927-90001 User’s Guide...
Page 145: Sa (Spectrum Analyzer) Mode
Keysight Handheld Analyzers N99xxA User’s Guide SA (Spectrum Analyzer) Mode 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 146 “FFT Gating (Opt 238)” on page 175 “Single / Continuous / Restart” on page 177 “Points ” on page 177 “Trace Display States (SA Mode)” on page 178 “Average Type” on page 179 “Average Count” on page 179 “Alignments” on page 180 Keysight N9927-90001 User’s Guide...
Page 147 “Record/Playback (SA Option)” on page 313 “Waterfall Display” on page 311 “Record/Playback (SA Option)” on page 313 Optional Settings: “All about Markers” on page 484 “All about Limit Lines” on page 499 “Saving and Recalling Files” on page 544 Keysight N9927-90001 User’s Guide...
Page 148: Sa Mode Settings
— 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. The Frequency Keysight N9927-90001 User’s Guide...
Page 149 1/10th (one division) of the current frequency span. Note: To change this setting from Manual to Auto, press CF Step twice. —Manual Type a step size value using the numeric keypad, then select a multiplier key. Learn more in “Multiplier Abbreviations” on page Keysight N9927-90001 User’s Guide...
Page 150: Radio Standard
First, press Save/Recall and select the Device from which the Radio Standard will be read. Most likely this will be USB or SD Card. — Press Measure 1 OR Freq/Dist then More — Then Radio Standard — Then Radio Standard Keysight N9927-90001 User’s Guide...
Page 151: Channel Selection
Places the lowest frequency of the specified channel at the beginning of the X-axis. —Stop Channel Places the highest frequency of the specified channel at the end of the X-axis. —Freq Span Changes the span of frequencies while the center frequency remains unchanged. Keysight N9927-90001 User’s Guide...
Page 152 Learn how to make it valid in the section, “See How to change the Channel Number of the measurement”? — Press Freq/Dist then More. — Press Channel Step — Enter a step value using the numeric keypad, the arrows, or the rotary knob. Then press Enter. Keysight N9927-90001 User’s Guide...
Page 153: Reverse Swap
RF Attenuation setting. See “Attenuation Control” on page 154. — 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). Keysight N9927-90001 User’s Guide...
Page 154: External Gain
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. Keysight N9927-90001 User’s Guide...
Page 155: Preamplifier Control (Opt 235)
Compression occurs when too much power into an amplifier causes it to no longer amplify in a linear manner. When too much power goes into the FieldFox RF Input connector, the amplifiers in the SA receiver compress and Keysight N9927-90001 User’s Guide...
Page 156: Field Strength Measurements
“View.” For information, refer to “Trace Display States (SA Mode)” on page 178 Pink Trace - Current correction factor. See below. — Learn how to set Y-Axis Units on “How to Set Y-axis Units” on page 154. Keysight N9927-90001 User’s Guide...
Page 157 Storage Device. — Storage Device Choose from: Internal, USB, SD. Learn more about these selections in “Set File Type and Select Device” on page 549. When finished, press Back to return to the previous menu. Keysight N9927-90001 User’s Guide...
Page 158: Using The Antenna/Cable Editor
- (dB micro Amps per meter), dBG (gauss), dBpT (tesla). ——Freq Interpolation: Set to LINear and can NOT be edited. — To edit Frequency/Value pairs, enter numbers using the numeric keypad, and a frequency suffix when necessary. Keysight N9927-90001 User’s Guide...
Page 159 — To DELETE Cable or Antenna files, use the Manage Files feature. Learn more “Manage Files” on page 552. — If the folder does not already exist on a USB or SD card, it is created automatically before storing the file. Keysight N9927-90001 User’s Guide...
Page 160: Source Tracking Offset And Offset Reversal
— The FieldFox can also read *.ANT (Antenna) files that were created from older Keysight Spectrum Analyzers. — SA Mode cable or antenna (*.csv or *.ANT) files can NOT be edited in Data Link software.
Page 161: Tune & Listen (Am/Fm)
Figure 9-3 Tune & Listen ON In the graphic above, Tune & Listen ON with Tune Frequency is indicated by a vertical bar (highlighted). How to select Tune & Listen — Press Measure 1 — Then Analog Demod Tune & Listen Keysight N9927-90001 User’s Guide...
Page 162 While Tune & Listen is actively demodulating a signal, the SA does not sweep and update the display. Listen Time sets the amount of time that the FieldFox demodulates, then stops to perform a single sweep and update the display, then again demodulates. Keysight N9927-90001 User’s Guide...
Page 163: Independent Source/Tracking Generator
Independent Source can be enabled ONLY when the FieldFox is in SA mode. To view the internal source, you must connect a cable or device between the RF Output connector and the RF Input connector. Keysight N9927-90001 User’s Guide...
Page 164 To cause the source to stay ON at the end of each sweep, turn battery saver OFF. (Learn more in “How to Access Individual Alignments” on page 184.) 1. N995xA/6xA cannot have the Leveled value set lower than –35 dBm. Keysight N9927-90001 User’s Guide...
Page 165: Resolution Bandwidth (Res Bw)
#Res BW x.xx XHz (#) means manual setting. This setting could impact the accuracy of the measurement. See Specifications in Appendix B. The Res BW setting also affects the Sweep Type setting. Learn how in “Sweep Type” on page 166 Keysight N9927-90001 User’s Guide...
Page 166: Video Bandwidth (Video Bw)
For a more comprehensive tutorial, see Spectrum Analysis Basics (App Note 150) at http://literature.cdn.keysight.com/litweb/pdf/5952-0292.pdf How to set Sweep Type — Press BW 2. — Then Advanced — Then Sweep Type — Then choose from the following: Keysight N9927-90001 User’s Guide...
Page 167: If Output
Therefore, the amplitude of traces on the FieldFox screen is NOT accurate and Meas UNCAL appears on the screen to indicate this. Learn more “Individual Alignments” on page 183. Learn more about the IF Output frequencies and bandwidths in the Supplemental Online Help: http://na.support.keysight.com/fieldfox/help/SupHelp/FieldFox.htm Keysight N9927-90001 User’s Guide...
Page 168 The translated IF signal at the IF OUT connector is no longer guaranteed to be centered at 33.75 MHz. —Narrow The IF output signal has approximately 5 MHz bandwidth. —Wide The IF output signal has approximately 25 MHz bandwidth. Keysight N9927-90001 User’s Guide...
Page 169: Sweep Acquisition
SwpAcquisition is NOT an absolute measure of time, but a relative number between 1 (fastest) and 5000 (slowest) sweep time. The actual time that was required to complete a sweep is annotated on the screen. — Press Sweep 3. Keysight N9927-90001 User’s Guide...
Page 170: Very Long Sweep Times
X-axis units becomes Time. The SA becomes like a tunable oscilloscope, with the center frequency being the frequency of interest. This capability is useful for analyzing modulation characteristics, such as pulsed measurements. Keysight N9927-90001 User’s Guide...
Page 171 — Enter a value using the numeric keypad. Sweep time is limited to 1000 seconds for N991xA/2xA/3xA models and 6000 seconds for N995xA & N996xA models. — Then select a multiplier key. Learn more in “Multiplier Abbreviations” on page Keysight N9927-90001 User’s Guide...
Page 172: Triggering
Video trigger. However, RF Burst is not as sensitive to triggering on low-level signals. Trigger Slope Trigger Slope determines which edge of an External, Video, or RF Burst trigger signal initiates a sweep. Keysight N9927-90001 User’s Guide...
Page 173 Therefore, you may need to set the trigger level higher than the displayed level. — Press Sweep 3 — Then Trigger Settings — Then Trig Level Keysight N9927-90001 User’s Guide...
Page 174 —OFF: Select, then enter a position value from 0 to 10 using the numeric keypad, the arrows, or the rotary knob. ——0: T-zero occurs at the left graticule. ——5: T-zero occurs at the center of the screen. Keysight N9927-90001 User’s Guide...
Page 175: Fft Gating (Opt 238)
— Measure the spectrum of a signal in one time slot of a TDMA system. — Exclude the spectrum of interfering signals, such as periodic pulse edge transients that exist for only a limited time. Keysight N9927-90001 User’s Guide...
Page 176 ?|? arrows, or the rotary knob. —Gate Delay Effectively moves the gating area left (negative delay) or right (positive delay) relative to the trigger event. Enter a value using the numeric keypad, the arrows, or the rotary knob. Keysight N9927-90001 User’s Guide...
Page 177: Single / Continuous / Restart
— Press Sweep 3 — Then Points [current setting] — Then choose from: — 101 | 201 | 401 | 601 | 801 | 1001 — # Points to enter a trace points value manually (Maximum = 20001). Keysight N9927-90001 User’s Guide...
Page 178: Trace Display States (Sa Mode)
Trace 4 data WILL be overwritten by the FieldFox when using the Independent Source Normalize feature (“Independent Source/Tracking Generator ” on page 163) or using Field Strength antenna or cable corrections (“Field Strength Measurements” on page 156). Keysight N9927-90001 User’s Guide...
Page 179: Average Type
Average Type. For all three of these Trace States, when Sweep 3 Continuous is set to OFF, press Restart to reset the sweep count to 1, perform <n> sweeps, then return to Hold. Keysight N9927-90001 User’s Guide...
Page 180: Alignments
The alignment process can be disabled. You may want to do this, for example, if you are analyzing the amplitude stability of a signal. SA and all modes built on its infrastructure require three types of alignments: — InstAlign Amplitude Alignment Keysight N9927-90001 User’s Guide...
Page 181 Control On/Off. This enables a soft-key for access to Individual Alignments > when this preference is set to ON: Cal 5 Individual Align. For more refer to “Preferences” on page 515, in Chapter 26 System Settings. Keysight N9927-90001 User’s Guide...
Page 182 This situation does not occur when the respective alignment is in the Auto state. To clear this Align All Now notification, press the softkey. How to set All Alignment and Align All Now — Press Cal 5 Keysight N9927-90001 User’s Guide...
Page 183 Chapter 26 System Settings. Individual The Individual Alignment softkey is only available, when the preference Alignment Control is set to in the FieldFox Preferences menu. Refer to “Preferences” on page 515 Chapter 26 , in System Settings. Keysight N9927-90001 User’s Guide...
Page 184 (predetermined in the factory) or the internal instrument temperature has changed sensibly (predetermined in the factory). Keysight N9927-90001 User’s Guide...
Page 185: Rf Burst Amplitude Alignment
The alignment process can be disabled. You may want to do this, for example, if you are analyzing the amplitude stability of a signal. How to make Burst Alignment settings These settings do NOT survive a Preset or Mode Preset. — Press Cal 5 — Then Individual Alig Keysight N9927-90001 User’s Guide...
Page 186 (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. The alignment is deemed stale after a significant Keysight N9927-90001 User’s Guide...
Page 187: Detection Method
From the frequency span of the measurement, the span of each data point is calculated as (frequency span / (data points-1)). The detection method allows you to choose how the measurements in each bucket are displayed. Keysight N9927-90001 User’s Guide...
Page 188 —Positive Peak [#Pk] Displays the maximum value of all the measurements in each bucket. This setting ensures that no signal is missed. However, it is not a good representation of the random noise in each bucket. Keysight N9927-90001 User’s Guide...
Page 189: Display Line
Display Line OFF ON — Then enter a Y-axis value using the arrows or the rotary knob, then press Enter. Or enter a value using the numeric keypad and press a suffix key or press Enter. Keysight N9927-90001 User’s Guide...
Page 190: Noise Marker
Interval Band Marker because it averages power over a specific time interval. In this case the range is specified as the Interval Span. Learn more about Zero span measurements in “Zero Span Measurements” on page 170. Keysight N9927-90001 User’s Guide...
Page 191: Frequency Counter At Marker
1 Hz resolution, and display the frequency of the signal peak in the marker annotation area. The marker does not move to the signal peak. When Freq Counter is ON, measurement sweeps are considerably slower. Keysight N9927-90001 User’s Guide...
Page 192: Time Zero Fixed Marker
Learn more about Scale in “Scale and Units” on page 153. Audio Beep can be used with any marker type or function, including Keysight N9927-90001 User’s Guide...
Page 193: Meas Uncal Error
Hold mode. The annotation is changed immediately, but the trace is not updated until the next sweep occurs. Therefore, the current data trace does not match the screen annotation. See the asterisk in Figure 9-1 on page 145. Keysight N9927-90001 User’s Guide...
Page 194: Channel Measurements
By default in ALL Channel measurements, averaging is enabled and set to display the average of the last 15 measurements. When enabled, this average setting is automatically making the following ‘averaging’ settings in order to provide the most accurate power measurements: Keysight N9927-90001 User’s Guide...
Page 195: Traces
Only one measurement trace can be displayed in Channel Measurements. Channel Power (CHP) Channel Power measures total power over the specified Integrated BW. The Integration Bandwidth (IBW) can be adjusted to measure the power over multiple channels. Keysight N9927-90001 User’s Guide...
Page 196 When Channel Power is selected, vertical posts appear on the display to mark the current Integration Bandwidth setting. The displayed Channel Power and Power Spectral Density values are measured and calculated over the specified Integration Bandwidth. Keysight N9927-90001 User’s Guide...
Page 197 The frequency span between the two vertical posts is the Occupied Bandwidth. The Occupied Power, the power that is contained between the two posts, is also displayed in dBm. Keysight N9927-90001 User’s Guide...
Page 198 Frequency Span. The frequency span can be entered using arbitrary frequencies or by using a Radio Standard in conjunction with channel numbers. Learn how to select a Radio Standard and channels in “Channel Selection” on page 151. To change Frequency Span: — Press Freq/Dist Keysight N9927-90001 User’s Guide...
Page 199 You can measure the channel power in one, two, or three adjacent (offset) channels on the low frequency and high frequency side of the carrier channel. Limits can be used to quickly see if too much power is measured in the adjacent channels. Keysight N9927-90001 User’s Guide...
Page 200 How to select ACPR — Press Measure__1 — Then Channel Measurements — Then Adjacent Channel Power When ACPR is selected, the following settings are maintained from a previous measurement: Center Frequency, Preamp ON|OFF, and RF Attenuation. Keysight N9927-90001 User’s Guide...
Page 201 Then enter a value using the numeric keypad. — Select Offset Integ BW This is the frequency range over which power is measured in that offset; half of the range below and half above the Offset Freq. Keysight N9927-90001 User’s Guide...
Page 202 - dB or dBc value is computed by subtracting the measured carrier power from the measured offset power. —Man – dB or dBc value is computed by subtracting the entered RefValue from the measured offset power. Keysight N9927-90001 User’s Guide...
Page 203 RRC Weighting is set and enabled automatically when included in a selected radio standard. To set and enable RRC Weighting: — Press Meas Setup 4 — Then RRC Weighting ON OFF — Then More — Then RRC Alpha [current setting] Keysight N9927-90001 User’s Guide...
Page 204 SA (Spectrum Analyzer) Mode 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 N9927-90001 User’s Guide...
Page 205: Rtsa (Real-Time Spectrum Analyzer) Mode-Option 350 (Cpu2 Only)
Keysight Handheld Analyzers N99xxA User’s Guide 10 RTSA (Real-Time Spectrum Analyzer) Mode—Option 350 (CPU2 Only) 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 http://literature.cdn.keysight.com/litweb/pdf/5991-4317EN.pdf...
Page 206 “Spectrogram Display (RTSA Option)” on page 225 “Record/Playback (RTSA Option)” on page 227 See Also Optional Settings: “All about Markers” on page 484 “All about Limit Lines” on page 499 “Saving and Recalling Files” on page 544 Keysight N9927-90001 User’s Guide...
Page 207: Rtsa Mode Settings
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. Keysight N9927-90001 User’s Guide...
Page 208: Scale And Units
(dBm). Y-axis graticules show dB below or above the reference line. When RF Attenuation set to Auto, the RF Attenuation is coupled to acquisition. How to set Scale Press Scale / Amptd. Then choose from the following: Keysight N9927-90001 User’s Guide...
Page 209: External Gain
RTSA. 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. Keysight N9927-90001 User’s Guide...
Page 210: Preamplifier Control (Opt 235)
Preamp ON should NOT cause a change to the displayed signal. How to control the Preamp By default, the preamp is OFF. — Press Scale/Amptd. — Preamp ON OFF When ON, is shown to the left of the graticules on the display. Keysight N9927-90001 User’s Guide...
Page 211: Check For Compressed Measurements
213. — Spectrogram The signal is displayed is a real-time spectrum with a spectrogram bitmap. Spectrogram views are valuable in capturing signals that include both time and frequency variations. Refer to Figure 10-3 on page 213. Keysight N9927-90001 User’s Guide...
Page 212 Use real-time spectrogram to quickly display measurements. Refer to Figure 10-4 on page 214. In all three spectrum measurements, there are four available traces for representation of the real-time spectrum.Density Spectrum (Histogram) FM Signal with 1 MHz FM Deviation & 400 Hz FM Rate Keysight N9927-90001 User’s Guide...
Page 213 RTSA (Real-Time Spectrum Analyzer) Mode—Option 350 (CPU2 Only) RTSA Mode Settings Figure 10-2 Density Spectrum (Histogram) with 2 Pulses (Blue color indicates pulse that occurs less frequently) Figure 10-3 Spectrogram Keysight N9927-90001 User’s Guide...
Page 214: Resolution Bandwidth (Res Bw)
ADC and the noise floor on the display lowers as a result. This allows low level signals to be seen and measured. How to set Res BW — Press BW 2. — Then Keysight N9927-90001 User’s Guide...
Page 215: Triggering
(below). The following two selections are similar in that they both trigger a sweep from a signal at the SA RF Input connector. Experiment with both selections to find the best trigger type for your application. Keysight N9927-90001 User’s Guide...
Page 216 Sweep is triggered by the rising (positive) edge of signal. — Sweep is triggered by the falling (negative) edge of signal. Trigger Delay After a valid trigger signal is received, the sweep begins after the specified Trigger Delay time. — Press Sweep 3 Keysight N9927-90001 User’s Guide...
Page 217 — Press Sweep 3 — Then Trigger Settings — Then Auto Trigger — Enter an Auto Trig Time using the numeric keypad. (1 ms to 100 seconds) — Then select a multiplier key. See “Multiplier Abbreviations” on page Keysight N9927-90001 User’s Guide...
Page 218: Single / Continuous / Restart / Time Per Div
To conserve battery power, in addition to using Hold / Single, you must also, set the System > preferences >Preferences > Battery Saver to On. For more, refer to the System Settings chapter and “Preferences” on page 515. Keysight N9927-90001 User’s Guide...
Page 219: Acq Time
(default is 20 ms). ——Manual enables user settable acquisition time values. Points (not user settable) Points is the number of measurements that are displayed along the X-axis. RTSA automatically sets the points to 561 and is not user settable. Keysight N9927-90001 User’s Guide...
Page 220: Trace Display States
Average Count setting. Learn more in “Average Count” on page 223. —View [V] Displays and then holds the last complete measurement trace on the screen. This is similar to storing a trace in memory. —Blank Displays no trace. Keysight N9927-90001 User’s Guide...
Page 221: Detection Method
This setting ensures that no signal is missed. However, it is not a good representation of the random noise in each bucket. —Negative Peak [p] Displays the minimum value of all the measurements in each bucket. Keysight N9927-90001 User’s Guide...
Page 222: Average Count, Show Density, Blue, And Red Percentage Limits
FieldFox display. Or, for the blue limit and red limit power levels (dBm) are coupled to the Spectrogram power level (dBm) limit bar in the upper right of the FieldFox display. Keysight N9927-90001 User’s Guide...
Page 223: Alignments
Alignments. Display Line A display line is a simple, horizontal line that can be placed at any amplitude level on the RTSA screen. Use a display line as mental guide for visual feedback. Keysight N9927-90001 User’s Guide...
Page 224 Display Line OFF ON — Then enter a Y-axis value using the arrows or the rotary knob, then press Enter. Or enter a value using the numeric keypad and press a suffix key or press Enter. Keysight N9927-90001 User’s Guide...
Page 225: Spectrogram Display
This setting affects the total number of trace records that can be displayed. For RTSA Mode: — Press Meas Setup 4. — Then Spectrogram View — Then choose from the following: — Overlay Displays the data trace over the spectrogram with NO graticules. Total trace records: 340. Keysight N9927-90001 User’s Guide...
Page 226: Common Settings For Spectrogram
LOWEST power levels that you expect to measure. This power level, and those measured lower than this level, appear Blue. How to Restart the Spectrogram Press Sweep 3 then Restart Keysight N9927-90001 User’s Guide...
Page 227: Record/Playback (Rtsa Option)
You can decrease the number of traces to further limit recording. To maximize the amount of space that is available, save recorded traces to a USB Flash drive or SD card. Learn how in “Manage Sessions” on page 234. Keysight N9927-90001 User’s Guide...
Page 228: Fieldfox Setting Changes During Record And Playback
During playback, the trace and display annotation will reflect the change on the screen. State settings: Refer to Table 10-1 on page 229 for a list of the applicable state settings for the RTSA options. Keysight N9927-90001 User’s Guide...
Page 229: About State And User Tags
Paused. About State and User Tags When any of the State settings (listed above) are changed during a recording, a ‘state tag’ is inserted at the first trace number to be recorded with the new setting. Keysight N9927-90001 User’s Guide...
Page 230: How To Record A Session
— Is Recording or Playback Paused? (mid-left annotation) — Is the Record or Playback Interval set too long? (Configuration settings.) How to Record a Session — Press Trace 6 — Then Record Playback — Then either: Keysight N9927-90001 User’s Guide...
Page 231: How To Playback A Session
1 and continues to loop indefinitely. During playback, choose from the following: — Pause Resume Temporarily halts playback. Then choose from the following: — Pause Resume Press to continue playing. Keysight N9927-90001 User’s Guide...
Page 232: Recording Configuration
First Active Trace (Default) This setting automatically selects the first active trace (1,2, 3 or 4) (i.e., any state other than View or Blank). — Trace 1,2,3,4 Records data from the corresponding trace in its current state. Keysight N9927-90001 User’s Guide...
Page 233: Record Source
Density Spectrum information is not recorded. Only the trace data is saved. — Data is recorded at the trace state processing block. — Data can be recorded from Traces 1,2,3, or 4 which includes the trace state (Max Hold, Min Hold, and so forth). Keysight N9927-90001 User’s Guide...
Page 234: Playback Configuration
An external USB flash drive (must be inserted) — Then Manage Sessions If these are large recordings on a device, it could take several seconds for the FieldFox to display the list. — Then choose from the following: Keysight N9927-90001 User’s Guide...
Page 235: Record Playback Example (Rtsa Mode Only)
— Then Record let the recorder run for several seconds. — Then Stop to end the recording. This session can be played back: For example: — Press Trace 6 — Then Record Playback — Then Play Keysight N9927-90001 User’s Guide...
Page 236: Interference Analyzer (Sa Mode) - Option
RTSA (Real-Time Spectrum Analyzer) Mode—Option 350 (CPU2 Only) Record/Playback (RTSA Option) Keysight N9927-90001 User’s Guide...
Page 237: Iq Analyzer (Iqa) - Option 351 (Cpu2 Only)
Keysight Handheld Analyzers N99xxA User’s Guide 11 IQ Analyzer (IQA) – Option 351 (CPU2 Only) IQA mode measures signals at the SA RF IN connector. IQA mode requires the FieldFox to have SA mode and CPU2 installed. Figure 11-1 IQ Analyzer (IQA) Display - LTE–TDD signal captured using the FieldFox’s I/Q analyzer...
Page 238 “Other Features Available” on page 263 — External Gain (SA chapter) – “External Gain” on page 154 — Display lines (SA chapter) –“Display Line” on page 189 “All about Limit Lines” on page 499 — Limit Lines (Data Analysis chapter) – Keysight N9927-90001 User’s Guide...
Page 239 “Why and When to Calibrate” on page 122 “All about Markers” on page 484 “All about Limit Lines” on page 499 “All about Trace Math” on page 504 Chapter 25, “Data Analysis Features.” Chapter 28, “File Management.” Keysight N9927-90001 User’s Guide...
Page 240: About I/Q Analyzer (Iqa) Measurements
(Sweep 3) menu and IF BW specified in Waveform measurement BW (BW 2) menu. 3. I/Q signal capture related parameters specified in the Measurement Setup (Meas Setup 4) menu. Some measurement parameters are auto-coupled and are not user-settable. Keysight N9927-90001 User’s Guide...
Page 241: I/Q Analyzer (Iqa) Mode Settings
User Defined Selects a default user defined 4-quadrant display showing the following data: — Log magnitude of the spectrum of the I/Q data versus frequency — Log magnitude of the I/Q data (RF Envelope) versus time Keysight N9927-90001 User’s Guide...
Page 242: How To Capture I/Q Data To A File
Selects the format of the output data file (CSV, TXT, SDF, or MAT). (Default: CSV) ——Device Selects the storage location for your data files (Internal, SD Card, or USB). Internal is not available, if the File Count is set to Multiple (default: Internal). Keysight N9927-90001 User’s Guide...
Page 243 Starts the I/Q data capture and stores the data into a default file and location (internal). Filenames and storage location can be customized. See also, the “Example:” on page 245 and to Chapter 28, “File Management.” ——Refer to the File Count softkey on page 242. Keysight N9927-90001 User’s Guide...
Page 244 I/Q data file capture and stops writing data to the current I/Q data file (no data is saved). If the I/Q data was being saved when the Stop softkey is pressed, the file is deleted. Refer to “Example:” on page 245. Keysight N9927-90001 User’s Guide...
Page 245: How To Modify The I/Q Data Measurement Parameters
“Adjusting the Frequency Settings” on page 252 “Adjusting the Scale and Amplitude Settings” on page 253 “Preamplifier Control (Opt 235)” on page 255 Adjusting the Bandwidth Settings — Press BW 2. — Then choose from the following: Keysight N9927-90001 User’s Guide...
Page 246 Blackman Harris This is the four-term Blackman-Harris window. This has the minimum side-lobe level for a four-term cosine window with 60 dB/decade roll-off. Gaussian Top This is a five-term cosine window that resembles a Gaussian window. Keysight N9927-90001 User’s Guide...
Page 247 Sets the Digital IF bandwidth of the instrument. The relationship between the IF bandwidth and sample rate can be described by the following equation: sample rate = 1.25 * IF BW. (Default: 10 MHz, minimum: 10 Hz, maximum: 10 MHz) Keysight N9927-90001 User’s Guide...
Page 248: Changing Between The Continuous And Single Captures And Adjusting The Trigger Settings
μ display (default: 100 s, 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 Keysight N9927-90001 User’s Guide...
Page 249 (analog) stage crosses the settable Trigger Level. This selection offers a wider bandwidth and may be a better representation of the incoming signal than Video trigger. However, RF Burst is not as sensitive to triggering on low-level signals. Keysight N9927-90001 User’s Guide...
Page 250: Adjusting The Measurement Setup Settings
Averaging (default) – Best for displaying Trace Averaging. Also known as video averaging. LgAvg annotation is displayed. ——Voltage (Magnitude) Averaging – Converts the amplitudes to a magnitude unit before averaging (e.g., Volts, Amps, microVolts, milliVolts, etc.) VAvg annotation is displayed. Keysight N9927-90001 User’s Guide...
Page 251: Adjusting The Trace Settings
Then select one of the following: For Spectrum Measurement: Mag Spectrum Time Summary – Time Summary result includes the capture time, spectrum analysis time and waveform start/stop time. For Waveform Measurement: I vs. Time – Imaginary vs. Time Keysight N9927-90001 User’s Guide...
Page 252: Adjusting The Frequency Settings
Changing the span causes the IF bandwidth and the sample rate to change automatically: Span = IF bandwidth, sample rate = 1.25 * IF bandwidth Res BW = Span /50, if resolution bandwidth = Auto. Keysight N9927-90001 User’s Guide...
Page 253: Adjusting The Scale And Amplitude Settings
FieldFox’s signal level at the mixer and adjusts the reference level to with the autoscale settings. — Scale/Div Manually adjust the scale per division to view specific areas of the current trace. Enter a value using the numeric keypad, the arrows, or the rotary knob. Then press Enter. Keysight N9927-90001 User’s Guide...
Page 254 RF Attenuation is set manually. The default Attenuation setting is 10 dB. Enter a value between 0 to 30 dB in 5 dB steps using the numeric keypad, the arrows, or the rotary knob. Then press Enter Keysight N9927-90001 User’s Guide...
Page 255: Preamplifier Control (Opt 235)
When Auto is selected, the preamp setting is determined by the RF attenuation and to the input power level. When the input power level reaches a certain value, the preamp is turned on and is shown to the left of the graticules on the display. Keysight N9927-90001 User’s Guide...
Page 256: Using Markers (Iqa)
With a Noise Marker present, the Res BW can be changed and the displayed noise floor will also change, but the Noise Marker readout will remain about the same. Keysight N9927-90001 User’s Guide...
Page 257: Band/Interval Power Marker
Enter. Or enter a value using the numeric keypad and select a frequency or time suffix. The Band Span remains at the frequency or time value that you set as the span changes. Keysight N9927-90001 User’s Guide...
Page 258: Band Span Marker (Spectrum Only)
Coupled Markers Enables or disables the coupled marker (default: OFF). Procedure to set coupled markers (Refer to Figure 11-2 on page 259 1. Press Preset > Mode Preset (Factory) 2. Press Measure 1 > User Defined Keysight N9927-90001 User’s Guide...
Page 259 Window 2 (Waveform), Window 3 (Real), and Window 4 (Imaginary). Figure 11-2 IQ Analyzer (IQA) Display - Coupled markers with Waveform (marker 1), Real (marker 2), and Imaginary (marker 3) displays Keysight N9927-90001 User’s Guide...
Page 260: Continuous Peak Search Marker
— Press Mkr->/Tools to create or select a Normal or Delta marker to use the Continuous Peak Search marker. — Then press More (RF Spectrum Only) — Then press Mkr Properties — Then Peak Criteria — Then Cont Peak Search Enables or disables the Continuous peak search marker (default: OFF). Keysight N9927-90001 User’s Guide...
Page 261: Alignments
(Clear/Write) Displays the actual measured data for each acquisition. —MaxHold Displays the maximum response of the input signal at each data point over multiple acquisitions. See also Average Count in “Adjusting the Measurement Setup Settings” on page 250. Keysight N9927-90001 User’s Guide...
Page 262 Average Count setting. Learn more in “Adjusting the Measurement Setup Settings” on page 250. —View Displays and then holds the last complete measurement trace on the screen. This is similar to storing a trace in memory. —Blank Displays no trace. Keysight N9927-90001 User’s Guide...
Page 263: Other Features Available
— Limit Lines - For information on using Limit Lines, refer to “All about Limit Lines” on page 499. — Display Lines - For information on using Limit Lines, refer to the SA chapter’s section, “Display Line” on page 189. Keysight N9927-90001 User’s Guide...
Page 264 IQ Analyzer (IQA) – Option 351 (CPU2 Only) Other Features Available Keysight N9927-90001 User’s Guide...
Page 265 Keysight Handheld Analyzers N99xxA User’s Guide 12 Over–the–Air Measurements (OTA) – LTE FDD Option 370 and 5GTF Option 377 (CPU2 Only) OTA mode measures signals at the SA RF Input Port 2 connector. OTA mode requires the FieldFox to have SA mode (Option 233 on combination analyzers), GPS (Option 307), and CPU2 installed.
Page 266 “External Gain” on page 154 — External Gain (SA chapter) – “Troubleshooting” on page 298 “Glossary (OTA)” on page 299 Also “Why and When to Calibrate” on page 122 Chapter 26, “System Settings.” (Changing display colors) Chapter 28, “File Management.” Keysight N9927-90001 User’s Guide...
Page 267: Using Ota (Options 370 - Lte Fdd And 377 - 5Gtf)
When multiple component carriers are selected, the results of the component carrier (CC) with the highest power is displayed. b. LTE FDD can measure and display multiple cells. 5GTF only has the ability to measure and display a single cell. Keysight N9927-90001 User’s Guide...
Page 268: About Over-The-Air (Ota) Measurements
6 cell sites with adjustable color "heat" amplitude scale — Spectrum – Magnitude spectrum frequency domain (fixed span). You can only view a single component carrier at a time with Spectrum (e.g., CC0 or CC2, etcetera). Keysight N9927-90001 User’s Guide...
Page 269 Over–the–Air Measurements (OTA) – LTE FDD Option 370 and 5GTF Option 377 (CPU2 Only) About Over–the–Air (OTA) Measurements — Strip Chart – Magnitude of selectable cell scan result metric graphed over time Figure 12-1 Example of the LTE FDD with Four Multiple Display Options Keysight N9927-90001 User’s Guide...
Page 270 Over–the–Air Measurements (OTA) – LTE FDD Option 370 and 5GTF Option 377 (CPU2 Only) About Over–the–Air (OTA) Measurements Figure 12-2 Example of the 5GTF with Four Multiple Display Options Keysight N9927-90001 User’s Guide...
Page 271: 5Gtf Features (Option 377)
— Spectrum – Magnitude spectrum frequency domain (fixed span). You can only view a single component carrier at a time with Spectrum (e.g., CC0 or CC2, etcetera). — Strip Chart – Magnitude of selectable cell scan result metric graphed over time Keysight N9927-90001 User’s Guide...
Page 272 Over–the–Air Measurements (OTA) – LTE FDD Option 370 and 5GTF Option 377 (CPU2 Only) About Over–the–Air (OTA) Measurements Figure 12-3 Example of 5GTF Single Carrier and Single Cell Keysight N9927-90001 User’s Guide...
Page 273: How To Set Up Over-The-Air (Ota) Mode Settings
279. And, refer to “Example of the 5GTF Scan Results Table (Two cc and one cell)” on page 280. See also “GNSS (GPS+) and GPS” on page 526. 2. Selecting OTA mode: — Press Mode_. Keysight N9927-90001 User’s Guide...
Page 274 Center frequency (see Channel Table softkey menu below). 6. Select Trace 6—choose: — Window 1 2 3 4 — Then Win State OFF ON to ON — Then Data — Table — Bar Chart — Spectrum Keysight N9927-90001 User’s Guide...
Page 275 Setup 1 softkey. — Then Back 9. Then Sort Enables you to sort your LTE FDD/5GTF carrier settings. Then Sort Order and choose Down (Default: Auto). Refer to “About Over–the–Air (OTA) Measurements” on page 268. Keysight N9927-90001 User’s Guide...
Page 276 Sync Correlation percentage to be displayed) — Once the table populates, enter the desired frequency error (LTE FDD) or Sync Correlation (5GTF) threshold for your measurement (LTE FDD: Default = 900 Hz, i.e., if a carrier signal’s error is greater Keysight N9927-90001 User’s Guide...
Page 277 Learn more about file settings, refer to Chapter 28, “File Management.” ——File Name enter a filename ——Device choose where to store your data files ——File Type > choose a file type (Default: KML) ——File Overwrite OFF ON ——Then Back Keysight N9927-90001 User’s Guide...
Page 278 15. Export KML file into 3rd party mapping software (i.e., Google Map or Google Earth). Refer to “Step 6: Import and Play back KML Files into 3rd Party Software (Example: Google Earth with Animation Tool)” on page 292. Keysight N9927-90001 User’s Guide...
Page 279 (Not all of the detected data is displayed.) Figure 12-5 Example of the LTE FDD Scan Results Table (Five CCs and one cell) 1. When multiple component carriers are selected, the results of the component carrier (CC) with the highest power is displayed. Keysight N9927-90001 User’s Guide...
Page 280 Over–the–Air Measurements (OTA) – LTE FDD Option 370 and 5GTF Option 377 (CPU2 Only) How to Set Up Over–the–Air (OTA) Mode Settings Figure 12-6 Example of the 5GTF Scan Results Table (Two cc and one cell) Keysight N9927-90001 User’s Guide...
Page 281 Over–the–Air Measurements (OTA) – LTE FDD Option 370 and 5GTF Option 377 (CPU2 Only) How to Set Up Over–the–Air (OTA) Mode Settings Additional LTE FDD Examples Figure 12-7 Example of LTE FDD with Single Carrier, Multiple Cell Sites, KPIs Keysight N9927-90001 User’s Guide...
Page 282 Over–the–Air Measurements (OTA) – LTE FDD Option 370 and 5GTF Option 377 (CPU2 Only) How to Set Up Over–the–Air (OTA) Mode Settings Figure 12-8 Example of LTE FDD with Multiple Carriers, Single Cell Site, and KPI’s Keysight N9927-90001 User’s Guide...
Page 283: Optional: Using Rtsa To Verify The Signal Quality
You should see a ~20 dB or greater LTE FDD signal–to–noise level. If not refer to “Troubleshooting” on page 298. Figure 12-9 Using RTSA to verify LTE FDD 751 MHz signal quality–20 dB Signal to Noise Displayed (Requires Option 350 and Preamp Option 235) Keysight N9927-90001 User’s Guide...
Page 284: How To Define A Cell Or Cell(S) And Use Ota
Step 1: LTE FDD (Option 370) and 5GTF (Option 377): Component Carrier (CC) and Cell Defined 1. Press Preset then Mode Preset (Factory) 2. Selecting LTE FDD: Press Measure > LTE FDD 5GTF 3. Optimizing the FieldFox to scan for signals: Keysight N9927-90001 User’s Guide...
Page 285 — (Not applicable for Spectrum. When All is specified, for Spectrum, the FieldFox defaults to CC0) or — CC0, CC1, CC2, CC3, or (i.e., 5GTF has up to seven component carrier choices (CC5, CC6, and CC7)) Keysight N9927-90001 User’s Guide...
Page 286 — And, set up your Windows and component carriers (CCs) as indicated in “How to Set Up Over–the–Air (OTA) Mode Settings” on page 273. 9. Press System — Press GNSS > GNSS Receiver > Internal > Esc Keysight N9927-90001 User’s Guide...
Page 287 Step 2: Select Trace Type Select one of the following display orientations: — Press Trace 6—choose: — Table — Bar Chart — Spectrum — Strip Chart Figure 12-11 Table and Bar Chart Display Types – LTE FDD Keysight N9927-90001 User’s Guide...
Page 288 Blue Limit to set low power values and to set the color. 3. And, then press System > Display > Display Colors, to set Indoor, Outdoor, or other display colors. See also Chapter 26, “System Settings.” Keysight N9927-90001 User’s Guide...
Page 289 Recording creates a record of your data with a timestamp and GPS stamp (refer to “GNSS (GPS+) and GPS” on page 526). GPS must be enabled for the log results to include a GPS stamp or use Preferences to enable the timestamp. Refer to Chapter 26, “System Settings.” Keysight N9927-90001 User’s Guide...
Page 290 6. When done press Stop. The log file is automatically saved to the defined Device Type and File Type. Else, edit the file name, under Settings > File Settings where the file results will be stored. Learn more about file settings, refer to Chapter 28, “File Management.” Keysight N9927-90001 User’s Guide...
Page 291 — Files stored in this format can be imported into 3rd party applications like Google Earth or Google Maps. — CSV file format. Files stored into this format can be imported into spreadsheet applications. Procedure: 1. Press When done press Stop. Keysight N9927-90001 User’s Guide...
Page 292 — Manual Mode – Move the time slider cursor to see color-coded icons pop-up according to the timestamp. — Loop mode has a Fast-Slow Replay Option. — Click on each color coded balloon to see the table of measurement results for that location. Keysight N9927-90001 User’s Guide...
Page 293 Over–the–Air Measurements (OTA) – LTE FDD Option 370 and 5GTF Option 377 (CPU2 Only) How to Set Up Over–the–Air (OTA) Mode Settings Figure 12-15 Importing a KML File Into Google Earth Keysight N9927-90001 User’s Guide...
Page 294: How To Record/Playback (Ota Options 370 And 377)
— The name of a recording can be changed using Manage Sessions. Learn more in “To change Recording Configuration settings:” on page 295. See also Chapter 26, “System Settings.” Keysight N9927-90001 User’s Guide...
Page 295: How To Record
— Then Settings To change your file settings or and measurement interval. Learn more, refer to “To change Recording Configuration settings:” on page 295. To change Recording Configuration settings: — Press Measure 1 — Then Record Playback Keysight N9927-90001 User’s Guide...
Page 296: How To Playback
1 and continues to loop indefinitely. During playback, choose from the following: — Pause Resume Temporarily halts playback. Then choose from the following: — Pause Resume Press to continue playing. Keysight N9927-90001 User’s Guide...
Page 297: Other Features Available
Analysis chapter’s section, “All about Scale Settings” on page 506 (not all settings apply to OTA Options 370 and 377). — External Gain - Refer to refer to the SA chapter’s section, “External Gain” on page 154. Keysight N9927-90001 User’s Guide...
Page 298: Troubleshooting
——Then change back to the desired Frequency Error Threshold for your measurement. ——5GTF: Press SyncCorr Th and change to 0% – wait a few seconds until the Table populates and ——Then change back to the desired Sync Correlation Threshold for your measurement. Keysight N9927-90001 User’s Guide...
Page 299: Glossary (Ota)
PSS (dBm) is the Primary Synchronization signal for an LTE downlink frame. SSS is the Secondary Synchronization signal for an 5GTF downlink frame (dBm). SyncCorr Th 5GTF Synchronization Correlation Threshold (%). Any data with errors that are less than the Synchronization Correlation Threshold (%) are not displayed. Keysight N9927-90001 User’s Guide...
Page 300 Over–the–Air Measurements (OTA) – LTE FDD Option 370 and 5GTF Option 377 (CPU2 Only) Glossary (OTA) Keysight N9927-90001 User’s Guide...
Page 301 Licensed Software or No Remote Connection” on page 303. If you to attempt connect a non-compatible FieldFox you will see the following error message: “Error: 38, The requested functionality is not available.” 1. To order the 89600 VSA Software, refer to http://www.keysight.com/find/assist.
Page 302: Remote Server Mode (Requires Cpu2 And Sa Hardware/Sa Option 233) In This Chapter
SA Option 233)” on page 305 See Also Optional Settings: “LAN Settings” on page 535 “All about Markers” on page 484 “All about Limit Lines” on page 499 “All about Trace Math” on page 504 Keysight N9927-90001 User’s Guide...
Page 303: Connecting Using Remote Server
Figure 13-1 Initial Waiting for a Connection from a PC-based and Compatible Licensed Software or No Remote Connection The graphic above shows the FieldFox in the process of connecting to a PC-based and compatible licensed software. Keysight N9927-90001 User’s Guide...
Page 304 Connecting Using Remote Server Figure 13-2 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. Keysight N9927-90001 User’s Guide...
Page 305: 89600 Vsa Software Overview (Requires Cpu2 And N991Xa/3X/A5X/A6Xa And Sa Option 233)
VSA software to capture and record your data as MATLAB files (*.mat). Learn more about FieldFox and 89600 VSA software, refer to http://www.keysight.com/find/assist. If you have Option 351 I/Q Analyzer option, you can directly save your data as MATLAB files (*.mat).
Page 306 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 http://literature.cdn.keysight.com/litweb/pdf/5990-6553EN.pdf For Technical Overview, refer to http://literature.cdn.keysight.com/litweb/pdf/5990-6405EN.pdf Keysight N9927-90001 User’s Guide...
Page 307 Keysight Handheld Analyzers N99xxA User’s Guide 14 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 308 “Common Settings for Waterfall and Spectrogram” on page 310 “Waterfall Display”...
Page 308: Spectrogram And Waterfall Displays
“Frequency Range” on page 148. — Resolution BW and Video BW. Learn more in “Resolution Bandwidth (Res BW)” on page 165 “Video Bandwidth (Video BW)” on page 166. — Sweep Time (Acquisition). Learn more in.“Sweep Acquisition” on page 169 Keysight N9927-90001 User’s Guide...
Page 309 Time Marker. — Then Delta — Then enter a value from 0 (the most recent sweep record) to the maximum value, using the numeric keypad, arrows, or the rotary knob. A ">>" indicates the Delta Marker. Keysight N9927-90001 User’s Guide...
Page 310: Common Settings For Waterfall And Spectrogram
LOWEST power levels that you expect to measure. This power level, and those measured lower than this level, appear Blue. How to Restart the Spectrogram/Waterfall Press Sweep 3 then Restart Keysight N9927-90001 User’s Guide...
Page 311: Waterfall Display
“Frequency Range” on page 148. — Resolution BW and Video BW. Learn more in “Resolution Bandwidth (Res BW)” on page 165 “Video Bandwidth (Video BW)” on page 166. — Sweep Time (Acquisition). Learn more in.“Sweep Acquisition” on page 169 Keysight N9927-90001 User’s Guide...
Page 312 — Gradual Most detail with lowest number of records. — 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 310. Keysight N9927-90001 User’s Guide...
Page 313: Record/Playback (Sa Option)
“Manage Sessions” on page 321. 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 317. Keysight N9927-90001 User’s Guide...
Page 314: Fieldfox Setting Changes During Record And Playback
SA option. Table 14-1 Summary of SA State Settings Option Settings Average Type Detector(s) External Gain Frequency Range Preamp On/Off Resolution BW RF Attenuation Source Settings Sweep Acquisition Trigger Settings Video BW Zero Span Sweep Time Keysight N9927-90001 User’s Guide...
Page 315: About State And User Tags
State Tag when scrolling through tags during playback. Screen Annotation During a record or playback session, the following is displayed in the top-left area of the screen: — AutoSession02: 92/95 (state 4/5)_*_ Sep.22.2018 09:15:15 AM where: Keysight N9927-90001 User’s Guide...
Page 316: How To Record A Session
During recording, choose from the following: — Pause Resume Temporarily halts recording until pressed again. The incoming trace continues to sweep. Press again to continue recording. — Stop Immediately stops recording. Then choose from the following: Keysight N9927-90001 User’s Guide...
Page 317: How To Playback A Session
Start playback from trace 1. — Record Resume recording from the last recorded trace. — Record Playback Setup Return to the setup menu to change Configuration settings or Close the session. Recording Configuration To change Recording Configuration settings: Keysight N9927-90001 User’s Guide...
Page 318 Sets the number of traces to record, after which the recording will automatically pause. Press Pause/Resume or Record to capture another N traces, or Stop to end recording. Default is OFF, which is NO limit to the number of traces to be recorded. Keysight N9927-90001 User’s Guide...
Page 319: Frequency Mask Trigger Configuration (Sa Mode Only)
549. A mask that is in use during a recording is NOT saved with the recording and does NOT automatically appear during playback. Like Limits Lines, it is saved and recalled with a state file. Keysight N9927-90001 User’s Guide...
Page 320: Record Source
These figures illustrate where in the FieldFox data flow data is recorded and played back. For this discussion, it is important to understand Trace States. Learn more “Trace Display States (SA Mode)” on page 178. Figure 14-3 FieldFox SA Mode: Data Flow and Record Playback Data Points Keysight N9927-90001 User’s Guide...
Page 321: Playback Configuration
Range of traces to be recorded/played/saved. — Last Trace to define the last trace in a Range of traces to be recorded/played/saved. — Back to return to the previous menu. Manage Sessions — Press Trace 6 — Then Record Playback Keysight N9927-90001 User’s Guide...
Page 322: Record Playback Example (Sa Only)
State then Max Hold — Then Record Playback — Then New Session — Then Recording Configuration — Then Record Source to Trace1 — Then Record Interval to 10 (seconds). — Then Back — Then Recorder Player Keysight N9927-90001 User’s Guide...
Page 323 Play the Max Hold recording into a Max Hold trace to show the accumulation of “Max Hold” activity over the entire recording. — Press Trace 6 then with Trace = 1 and press State then Max Hold — Then Record Player — Then Play Keysight N9927-90001 User’s Guide...
Page 324 Interference Analyzer (SA Mode) – Option 236 Record/Playback (SA Option) Keysight N9927-90001 User’s Guide...
Page 325: Reflection Mode (Sa Models) - Option
Keysight Handheld Analyzers N99xxA User’s Guide 15 Reflection Mode (SA Models) - Option 320 Option 320 requires Option 220 Tracking Generator. N9938A 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 326 123. In addition, Normalization is available. Learn how “Normalize” on page 328. However, other calibration types are NOT offered. In this Chapter “How to select Reflection Mode” on page 328 “Measurement Selection” on page 328 “Normalize” on page 328 Keysight N9927-90001 User’s Guide...
Page 327 “Resolution (Number of Data Points)” on page 52 “Sweep Time” on page 52 “Output Power” on page 53 “Interference Rejection” on page 53 “All about Markers” on page 484 “All about Limit Lines” on page 499 Keysight N9927-90001 User’s Guide...
Page 328: Reflection Mode Settings
For example, the device could be: — An Open or Short (with maximum reflection) How to perform Normalization To Port 1, connect a known device (usually an Open or Short) to which reflection measurements are to be normalized. Keysight N9927-90001 User’s Guide...
Page 329 Learn more about Trace Math in “All about Markers” on page 484. Data interpolation is NOT supported. If the Resolution setting is changed with Trace Math enabled, the FieldFox will disable the math operation. Keysight N9927-90001 User’s Guide...
Page 330 Reflection Mode (SA Models) - Option 320 Reflection Mode Settings Keysight N9927-90001 User’s Guide...
Page 331 Keysight Handheld Analyzers N99xxA User’s Guide 16 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.
Page 332 Built-in Power Meter Mode – Option 310 “Limits” on page 344 The following Built-in Power Meter settings are identical to SA Mode settings: “Radio Standard” on page 334 “How to Access Individual Alignments” on page 184 Keysight N9927-90001 User’s Guide...
Page 333: Built-In Power Meter Settings
Type a value using the numeric keypad. Then press a multiplier key. The default span is 20 MHz. The maximum span is 100 MHz. The current span setting is shown as the dividend in the digital display. For example: -10 dBm / 1.00 MHz Keysight N9927-90001 User’s Guide...
Page 334: Attenuation
Power Meter settings. To learn about these settings, please refer to the following pages: “Scale” on page 341 “Relative and Offset Power Measurements” on page 342 “Display Units” on page 342 “Averaging” on page 343 “Scale” on page 341 “Limits” on page 344 Keysight N9927-90001 User’s Guide...
Page 335 N99xxA User’s Guide 17 Power Meter (USB) 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 337 “How to Connect the Power Sensor”...
Page 336 Power Meter (USB) Mode - Option 302 “Step Detection Mode” on page 344 “Limits” on page 344 See Also “FOPS Settings” on page 349 Keysight N9927-90001 User’s Guide...
Page 337: Power Meter (Usb) Mode - Option 302
Power Meter (USB) Mode - Option 302 Supported Power Sensors For a complete list of supported Keysight USB Power Sensors, please visit: www.keysight.com/find/usbsensorsforfieldfox The FieldFox does NOT support the following Keysight USB Power Sensor features: External Triggering (Time Gated Burst Power Measurement), Power Sweep Operation, and Frequency Sweep Operation.
Page 338 Power Meter (USB) Mode - Option 302 — 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. Keysight N9927-90001 User’s Guide...
Page 339: Usb Power Meter Settings
Zeroing The Keysight USB Power Sensors perform Internal Zeroing automatically. Because Keysight USB Power Sensors have an internal switch, Internal Zeroing does NOT require that the power source be turned OFF. For highest measurement accuracy, when measuring power levels below –30 dBm, External Zeroing should be performed.
Page 340: Frequency
NO warning is shown. Frequency A table of correction factors versus frequency is stored within Keysight Power Sensors. The frequency of the power to be measured is entered in the FieldFox so that the appropriate correction factor can be used.
Page 341 100 dBm. Autoscale: 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 More. — Then Autoscale. Keysight N9927-90001 User’s Guide...
Page 342: Relative And Offset Power Measurements
Sets Power Meter display to dBm or dB. — Watt (%) Sets Power Meter display to Watts or %. Resolution Resolution sets the number of digits to display after the decimal point on the digital power meter display. Keysight N9927-90001 User’s Guide...
Page 343: Averaging
When a data trace is displayed, the entire trace is measured, then holds. The Hold annotation changes to an arrow --> while the measurement occurs. — Continuous OFF ON Makes continuous measurements. This is the typical setting when battery power is not critical. Keysight N9927-90001 User’s Guide...
Page 344: Step Detection Mode
You can also use Run / Hold +/- to toggle between Single and Continuous. 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 345: 18 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 346 Frequency Offset Using Power Sensor (FOPS) – Option 208 “Amplitude Markers” on page 353 “Trace Math” on page 353 See Also “All about Scale Settings” on page 506 Keysight N9927-90001 User’s Guide...
Page 347: Overview
— The USB power sensor, with an equally long USB/LAN cable, is connected to the IF Output. USB/LAN extenders are NOT provided with the FieldFox or Keysight USB power sensors. — Conversion gain/loss is measured at power sensor. Keysight N9927-90001 User’s Guide...
Page 348 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 N9927-90001 User’s Guide...
Page 349: Fops Settings
— Press Mode — Then Power Meter (USB Sensor) — Then connect a USB Power Sensor to either FieldFox USB port. — For a complete list of supported Keysight USB Power Sensors, please visit: www.keysight.com/find/usbsensorsforfieldfox Measurement Selection — Press Measure 1 —...
Page 350: Sweep Type And Frequency
Sweep Type and Frequency Set the source and receiver frequencies for the FOPS measurements. The receiver is a Keysight U-Series Power Sensor. These are broadband measurement devices, which means that they measure power over a very wide frequency range. Tables of frequency and power correction factors are stored within the power sensors.
Page 351 Src = 2 GHz to 3 GHz Offset = 3.8 GHz Rx = 1.800 GHz to 800 MHz Positive Offset, RxSwp = (Offs + Src) Src = 2 GHz to 3 GHz Offset = 3.8 GHz Keysight N9927-90001 User’s Guide...
Page 352: Power Sensor Settling
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. Keysight N9927-90001 User’s Guide...
Page 353: Amplitude Markers
When Trace, then Data -> Mem is pressed, if a Src Power trace is active, then RxPower is actually stored into memory. To Compare Src Power (Input) and Rx Power (Output): 1. Meas Rx Power 2. Store to memory 3. View Data & Memory 4. Meas Src Power. Keysight N9927-90001 User’s Guide...
Page 354 Frequency Offset Using Power Sensor (FOPS) – Option 208 FOPS Settings Keysight N9927-90001 User’s Guide...
Page 355: Pulse Measurements Mode - Option
19 Pulse Measurements Mode – Option 330 Pulsed power meter measurements, available with Option 330, are made with Keysight U2020 X-Series USB Peak Power Sensors. These sensors are capable of detecting, measuring, and storing data from a train of pulses at the RF input.
Page 356 Many of the features included with the FieldFox Pulse Measurements Mode are discussed in detail in these two documents: — Keysight U2020 X-Series USB Peak Power Sensors Programmer’s Guide. http://literature.cdn.keysight.com/litweb/pdf/U2021-90003.pdf — “Best Practices For Making The Most Accurate Radar Pulse Measurements”...
Page 357: Supported Power Sensors
Pulse Measurements Mode – Option 330 Supported Power Sensors Supported Power Sensors Pulse measurements are made using any of the Keysight U2020 X-Series USB Peak Power Sensors. Zeroing of the U2020 X-Series USB Peak Power Sensors is performed automatically at power up, every 5 seconds, and prior to measuring low level signals.
Page 358: Pulse Measurement Settings
— Learn how to set Display Units in “Display Units” on page 342. — Learn how to set Limits in “Limits” on page 344. Frequency / Time How to set Frequency — Press Freq/Dist — Then choose from the following: Keysight N9927-90001 User’s Guide...
Page 359: Zoom Window
Closes the zoom window. — Zoom Center While monitoring the T within the blue vertical posts on Tr 1, enter a value for the center time using the numeric keypad, the arrows, or the rotary knob. Keysight N9927-90001 User’s Guide...
Page 360: Scale
Averaging helps to reduce the effects of random noise on a measurement. The more measurements that are averaged, the greater the amount of noise reduction. Averaging is allowed for all pulse measurements. Averaging is performed in the USB Power Sensor before the data is sent to the FieldFox. Keysight N9927-90001 User’s Guide...
Page 361: Video Bandwidth
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. Keysight N9927-90001 User’s Guide...
Page 362: Resolution
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 — Press Sweep 3 — Then Trigger Keysight N9927-90001 User’s Guide...
Page 363 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. — Press Sweep 3 — Then Trigger Keysight N9927-90001 User’s Guide...
Page 364 20 ns in order to trigger on very short pulses. — Press Sweep 3 — 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 Keysight N9927-90001 User’s Guide...
Page 365: Marker 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” on page 484. Keysight N9927-90001 User’s Guide...
Page 366: Amplitude Markers
— 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. — The search is performed over the entire Tr 1 trace. Keysight N9927-90001 User’s Guide...
Page 367: Auto Analysis
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. 8 - Pulse Period The time of one complete pulse cycle Keysight N9927-90001 User’s Guide...
Page 368: Pulse Top
Enables and disables the display of a 10 x 10 grid on the FieldFox screen. How to enable Grid display — Press Mkr ->/Tools — Then Grid — Grid OFF — A grid of X/Y lines appears on the screen. Keysight N9927-90001 User’s Guide...
Page 369: Trace Memory
— Press Data to view only the data trace. — Press Memory to view only the memory trace. — Press Data & Memory to view both the live trace and the stored memory trace. Keysight N9927-90001 User’s Guide...
Page 370 Pulse Measurements Mode – Option 330 Pulse Measurement Settings Keysight N9927-90001 User’s Guide...
Page 371: Vvm (Vector Voltmeter) Mode - Option
Keysight Handheld Analyzers N99xxA User’s Guide 20 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.
Page 372 VVM (Vector Voltmeter) Mode - Option 308 Procedures “1-Port Cable Trimming Measurements ” on page 379 “2-Port Transmission Measurements” on page 381 “A/B and B/A Measurements” on page 383 Keysight N9927-90001 User’s Guide...
Page 373: Overview
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 20-2 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 374: Vvm Mode Settings
— After using the keypad, select a multiplier key. Learn about multiplier abbreviations in“Multiplier Abbreviations” on page Display Resolution You can display either one digit or two digits after the decimal point for both magnitude and phase readings. Keysight N9927-90001 User’s Guide...
Page 375: If Bandwidth
Power Level settings in this mode will NOT change Power Level settings in other modes. To help prevent damage to your DUT, use caution when changing modes with your DUT connected to the FieldFox test ports. Keysight N9927-90001 User’s Guide...
Page 376: Averaging
N is the current count setting. — Enter a value using the numeric keypad. Enter 1 for NO averaging. — Press Enter. To restart the averaging process, press Meas Setup 4, then More, then Restart Keysight N9927-90001 User’s Guide...
Page 377: Single Or Continuous Measure
— When performing a 1-Port Cable Trimming operation, a reference cable is connected and measured. Then Zero is pressed, and subsequent cables are measured and trimmed to match electrical length of the reference cable. Keysight N9927-90001 User’s Guide...
Page 378 — Open – select to display Phase = 0.0 Deg when zeroed. — Short - select to display Phase = 180.0 Deg when zeroed. — Then Zero ON — Select Zero OFF to turn zeroing off. Keysight N9927-90001 User’s Guide...
Page 379: 1-Port Cable Trimming Measurements
180° degrees. 7. Attach the shortest cable to the FieldFox PORT 1 connector. This cable is the reference cable. Leave the end of the reference cable open (unterminated). 8. Press Meas Setup 4 then press Zero. Keysight N9927-90001 User’s Guide...
Page 380 12.Carefully trim the cable until the phase shift reads zero. The attached cable’s electrical length is now matched to the reference cable. 13.Repeat steps 10 through 12 for the remaining cables to be trimmed. Keysight N9927-90001 User’s Guide...
Page 381: 2-Port Transmission Measurements
5. 5.Connect the DUT. Notes: — The magnitude value is the gain (positive value) or the loss (negative value) of the DUT. — The phase value is the difference in phase (in degrees) between the DUT input and output. Keysight N9927-90001 User’s Guide...
Page 382 VVM (Vector Voltmeter) Mode - Option 308 2-Port Transmission Measurements — To measure isolation of the amplifier, reverse the connection to the amplifier (PORT 1 to the amplifier output). Keysight N9927-90001 User’s Guide...
Page 383: A/B And B/A Measurements
5. To calibrate, replace the DUT with a THRU connection, preferably by connecting together the two Power Splitters (shown in green). For low frequency measurements, TEEs can be used. 6. Press Meas Setup 4, then Zero. 7. Connect the DUT and measure. Keysight N9927-90001 User’s Guide...
Page 384 VVM (Vector Voltmeter) Mode - Option 308 A/B and B/A Measurements Keysight N9927-90001 User’s Guide...
Page 385: Erta (Extended Range Transmission Analysis) Mode - Option
Keysight Handheld Analyzers N99xxA User’s Guide 21 ERTA (Extended Range Transmission Analysis) Mode - Option 209 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 386: Overview
Accuracy is further enhanced with input and output cable corrections. Furthermore, the alignment process keeps the SA receivers calibrated. For information on alignments, refer to the SA mode chapter’s section, “Alignments” on page 180. Keysight N9927-90001 User’s Guide...
Page 387: Requirements And Limitations
Standards, and Sweep Triggering. The following SA features are disabled during partnership synchronization: — Video BW, SwpAcquisition, Frequency Count, Record/Playback, and certain Amplitude Units. — The only keystrokes allowed on the Source unit are Send Text Message and Exit. Keysight N9927-90001 User’s Guide...
Page 388: Start Connection Wizard
— Trigger signals: On each unit, connect the Ref/Trig Out SMB (m) connector on the FieldFox side panel to the Ref/Trig In SMA (f) connector on the other FieldFox top panel. — RF connections Preferred method (pictured above): Keysight N9927-90001 User’s Guide...
Page 389 — Select Global or Mode Preset — Change Modes — Recalling a non-ERTA State file. Recalling an ERTA State file can re-establish a partnership if the Source unit is still on the network at the same location. Keysight N9927-90001 User’s Guide...
Page 390 Do the following for both the Input and Output jumper cables: — Press Skip this step to skip the cable measurement. — Otherwise, connect the Input / Output jumper cable as shown below, then press Measure Input (or Output) Cable. Keysight N9927-90001 User’s Guide...
Page 391 Apply Corrections ON to remove the jumper cables from subsequent DUT measurements. — Press Done to exit the Connection Wizard. — On the Receiver unit, press LEAD ERTA Partnership. The Source unit enters ERTA mode as the follower. Keysight N9927-90001 User’s Guide...
Page 392: Configure Measurement Settings
R or B measurements. Figure 21-2 Input power, Output power, and gain measurement traces To change the trace numbers of these three measurements, or to select a trace state other than Clear/Write, press Trace 6. Keysight N9927-90001 User’s Guide...
Page 393: Normalize
SourceFreq = Offset + RecFreq. Use to measure Upconverters. ——ON SourceFreq = Offset - RecFreq. Use to measure Downconverters. The source sweeps in Reverse direction. The Offset Freq. MUST be larger than the Receiver Stop Freq. Keysight N9927-90001 User’s Guide...
Page 394: Improve Dynamic Range
CoupledCW] is selected, then synchronization ends and the two partner units revert to general SA (non-tracking) sweeps. However, the units are still in partnership, and other settings continue to be synchronized such as Frequencies, ResBw, and Points. Keysight N9927-90001 User’s Guide...
Page 395: Am/Fm Metrics (Sa Only And Option 355)
Keysight Handheld Analyzers N99xxA User’s Guide 22 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.” In this Chapter “Using AM/FM Metrics” on page 395 “SINAD and THD Calculations”...
Page 396 Since the modulation depth/deviation is directly proportional to the instantaneous amplitude of the baseband signal, the measurement result helps to intuitively evaluate the quality of the baseband signal. AM modulation depth AM modulation depth = (Peak-to-Peak / 2) Keysight N9927-90001 User’s Guide...
Page 397 Carrier power This measures the power of the carrier signal without the modulation. Ideally, power for a sinusoidal carrier signal is concentrated around its carrier frequency. Keysight N9927-90001 User’s Guide...
Page 398: How To Set Up Am/Fm Metrics
— Optionally, adjust the Res BW to better identify side bands. Metrics are displayed in the AM/FM Modulation Metrics table on the FieldFox. For AM and FM Metrics examples, refer to Figure 22-1 through Figure 22-8 on page 407. Keysight N9927-90001 User’s Guide...
Page 399 AM/FM Metrics (SA Only and Option 355) Using AM/FM Metrics Figure 22-1 AM Metrics - Example 1 Keysight N9927-90001 User’s Guide...
Page 400 AM/FM Metrics (SA Only and Option 355) Using AM/FM Metrics Figure 22-2 AM Metrics - Example 2 Keysight N9927-90001 User’s Guide...
Page 401 AM/FM Metrics (SA Only and Option 355) Using AM/FM Metrics Figure 22-3 FM Metrics - Wide band Example Keysight N9927-90001 User’s Guide...
Page 402: Sinad And Thd Calculations
Refer to Figure 22-5 on page 403. — For more on calculations, refer to “Overview of Measurement Types” on page 395. — See also, http://literature.cdn.keysight.com/litweb/pdf/5991-4913EN.pdf Figure 22-4 Audio Waveform with FFT Calculations Keysight N9927-90001 User’s Guide...
Page 403 AM/FM Metrics (SA Only and Option 355) SINAD and THD Calculations Figure 22-5 SINAD and THD Results - Example 1 Keysight N9927-90001 User’s Guide...
Page 404 AM/FM Metrics (SA Only and Option 355) SINAD and THD Calculations Figure 22-6 SINAD and THD Results - Example 2 Keysight N9927-90001 User’s Guide...
Page 405: Interpreting Am/Fm Metrics Error Messages
— FieldFox frequency span is too wide — No side lobes are displayed in the results Refer to the examples in “Test Tone Not Found - Example” on page 406 “Test Tone Not Found - Corrected Example” on page 407. Keysight N9927-90001 User’s Guide...
Page 406 — FM Deviation: 18 kHz — Modulation Rate: 1 kHz Reasons for error: — Frequency span of 1.0 MHz is too wide — No side lobes displayed, so test tone not found Figure 22-7 Test Tone Not Found - Example Keysight N9927-90001 User’s Guide...
Page 407 — FM algorithm identifies the side lobes — The algorithm matches the modulation envelope to the mathematically calculated FM modulation or distortion patterns Figure 22-8 Test Tone Not Found - Corrected Example Keysight N9927-90001 User’s Guide...
Page 408 AM/FM Metrics (SA Only and Option 355) Interpreting AM/FM Metrics Error Messages Keysight N9927-90001 User’s Guide...
Page 409: Channel Scanner (Option 312)
Keysight Handheld Analyzers N99xxA User’s Guide 23 Channel Scanner (Option 312) In this Chapter: “Using Channel Scanners” on page 409 “How to Set Up Channel Scanner” on page 410 “Field Strength Measurements” on page 424 — “Using the Antenna/Cable Editor” on page 430 —...
Page 410: How To Set Up Channel Scanner
Bar ChartV — Bar ChartH — Channel Pow — Strip Chart — Chart Overlay — Scan&Listen 3. Modify scale and specify color bar coding—Modify the scale and assign colors to low and high power channels (bars): Keysight N9927-90001 User’s Guide...
Page 411 ——Record-Play files are save-recalled to: "CurrentDevice\ChannelScanner\ChannelS canner\RecordPlayback\" — System – Sets the User Folder to the user defined system folder path/name: ——List files are save to-from "CurrentDevice\<UserSelectedFolder>\" ——Record-Play files are save-recalled to: "CurrentDevice\<UserSelectedFolder>\" Refer to Chapter 28, “File Management.” Keysight N9927-90001 User’s Guide...
Page 412: How To Define A Channel And Use Channel Scanner
“Step 4: Enable Data Logging and Record Results” on page 420 — “Step 5: Save the Log Results:” on page 422 — “Step 6: Import and Play back KML Files into 3rd Party Software (Example: Google Earth with Animation Tool)” on page 422 Keysight N9927-90001 User’s Guide...
Page 413 Step 1A: Scan Mode: Range Channel Defined 1. Define some channels: Press Measure > Scan Mode > Range 2. Press Edit Range and modify table items: — Total Channels — Search Count — Start Channel CF — CF Step Size Keysight N9927-90001 User’s Guide...
Page 414 1. Define some channels: Press Measure > Scan Mode > Custom List 2. Press Edit Custom List and modify table items: — Add table rows — Then for each row: — Edit Center Frequency (CF) — Edit Integration BW (IBW) Keysight N9927-90001 User’s Guide...
Page 415 Step 2: Select Display Type Select one of the following display orientations: — Select Display Type—choose: — Bar ChartV — Bar ChartH — Channel Pow — Strip Chart — Chart Overlay — Scan&Listen Keysight N9927-90001 User’s Guide...
Page 416 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 23-5 Bar Chart Vertical Display Type Figure 23-6 Bar Chart Horizontal Display Type Keysight N9927-90001 User’s Guide...
Page 417 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 23-7 Channel Power Display Type Figure 23-8 Strip Chart Display Type Keysight N9927-90001 User’s Guide...
Page 418 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 23-9 Strip Chart Overlay Display Type Figure 23-10 Scan & Listen Display Type Keysight N9927-90001 User’s Guide...
Page 419 3. And, then press System > Display > Display Colors, to set Indoor, Outdoor, or other display colors. See also Chapter 23, “Channel Scanner (Option 312)”, on page 409. Figure 23-11 Outdoor Display Colors Keysight N9927-90001 User’s Guide...
Page 420 — Distance: Store results every “n” meters. GPS must be enabled to store results by distance. Procedure 1. Press Measure > Data Logging > Record Settings > Meas Interval ON (default) 2. Press Interval Type > Time Distance then: Keysight N9927-90001 User’s Guide...
Page 421 — Optional: Use the RPG (fine adjust) or the arrow keys (coarse adjust) to change the color bar. — Position to change the position along the time record’s results. — Red Limit to change the color bar. Keysight N9927-90001 User’s Guide...
Page 422 Step 6: 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. See also Google Maps and or Google Earth’s help. Keysight N9927-90001 User’s Guide...
Page 423 — Loop mode has a Fast-Slow Replay Option. — Click on each color coded balloon to see the table of measurement results for that location. Figure 23-13 Importing a KML File Into Google Earth Keysight N9927-90001 User’s Guide...
Page 424: Field Strength Measurements
Figure 23-14 Overview of Field Strength for Channel Scanner (See also, Figure 23-15 on page 425.) FieldFox Field Strength Channel Scanner Refer to Figure 23-15 on page 425 Keysight N9927-90001 User’s Guide...
Page 425 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 23-15 Editing Antenna Units (See also, Figure 23-14 on page 424.) Keysight N9927-90001 User’s Guide...
Page 426 Turn ON and OFF correction for all settings. —RcvrSide Antenna Off / On Edit/Recall an Antenna file to be used on the receiver side. —RcvrSide Cable Off / On Edit/Recall a Cable file to be used on the Receiver side. Keysight N9927-90001 User’s Guide...
Page 427 “Set File Type and Select Device” on page 549. When finished, press Back to return to the previous menu. Field Strength Correction Examples Refer to Figure 23-17 on page 428 Figure 23-18 on page 429. Keysight N9927-90001 User’s Guide...
Page 428 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 23-17 Apply Corrections ON Keysight N9927-90001 User’s Guide...
Page 429 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 23-18 Apply Corrections OFF Keysight N9927-90001 User’s Guide...
Page 430: Using The Antenna/Cable Editor
- (dB micro Amps per meter), dBG (gauss), dBpT (tesla). ——Freq Interpolation: Set to LINear and can NOT be edited. — To edit Frequency/Value pairs, enter numbers using the numeric keypad, and a frequency suffix when necessary. Keysight N9927-90001 User’s Guide...
Page 431 — To DELETE Cable or Antenna files, use the Manage Files feature. Learn more “Manage Files” on page 552. — If the folder does not already exist on a USB or SD card, it is created automatically before storing the file. Keysight N9927-90001 User’s Guide...
Page 432 *.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. — Channel Scanner Mode cable or antenna (*.csv or *.ANT) files can NOT be edited in Data Link software.
Page 433: Noise Figure Mode (Option 356 - Cpu2 Only)
Keysight Handheld Analyzers N99xxA User’s Guide 24 Noise Figure Mode (Option 356 – CPU2 Only) 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 434 Example of Jitter Uncertainty (21 points)—with Uncertainty Bars. Learn more “How to use Auto-Integration” on page 474. Figure 25-2 Example of Jitter Uncertainty (21 points)—with Uncertainty Bars Disabled. Learn more in “How to use Auto-Integration” on page 474. Keysight N9927-90001 User’s Guide...
Page 435 “All about Markers” on page 484 “All about Limit Lines” on page 499 “All about Trace Math” on page 504 “All about Scale Settings” on page 506 Chapter 25, “Data Analysis Features.” Chapter 28, “File Management.” Keysight N9927-90001 User’s Guide...
Page 436: Using Noise Figure
— ENR uncertainty — User calibration uncertainty — Uncertainty bars Select Noise Figure Mode before making any setting in this chapter. How to select Noise Figure Mode: — Press Mode_. — Then More. — Then Noise Figure. Keysight N9927-90001 User’s Guide...
Page 437 (displayed when the Amplitude Alignment is stale) 4. External Reference annotation (displayed when external reference is selected) 5. Warning message annotation. Used to display the following warnings: –Invalid frequency settings –VVS trip –ADC Over Range –Ext Ref unlock Keysight N9927-90001 User’s Guide...
Page 438 4. User Cal = Receiver cal + User Cal applied and User Cal is not interpolated (the calibration frequency points match up with sweep frequency points) Keysight N9927-90001 User’s Guide...
Page 439 User Cal contribution) and you have entered uncertainty values for your noise source, DUT, and preamplifier if applicable. 3. Unc = Uncertainty bars are on and uncertainty values are valid. Keysight N9927-90001 User’s Guide...
Page 440: How To Define A Noise Figure Measurement
= 1001 points, default = 21) 5. Use Meas Setup > Integration Setup Integration (See also “How to use Auto-Integration” on page 474.) — Max. Time/Pt. (Available when Mode = Auto) or — Time/Pt. (available when Mode = Fixed) Keysight N9927-90001 User’s Guide...
Page 441: Overview Of Softkey Menus
Specify Noise Figure (default) or Noise Figure has asymmetrical uncertainty (i.e., log measurement). Noise Factor and Noise Temperature have symmetrical uncertainty (i.e., linear measurement). Uncertainty is not displayed for Gain and Y-Factor. — Noise Factor Specify a Noise Factor or Keysight N9927-90001 User’s Guide...
Page 442 Off value (cold) of the ENR spot Ω Γ value’s 50 match, (0.000 to 1.000). σ ——ENR Uncert. Cov. [2 Opens a menu to set the value of the ENR uncertainty coverage. σ σ σ Then choose: (default), or Keysight N9927-90001 User’s Guide...
Page 443 ——Storage Device [Internal] Opens a menu of softkeys to set the storage location for your files. Then choose Internal (default), Card, or USB. ——Back to return to previous menu. Keysight N9927-90001 User’s Guide...
Page 444 — Opens a menu of softkeys to define your DUT Type (Amplifier, Downconverter, Upconverter, or Multi-Stage Converter), frequency context, and loss compensation. Refer to “How to Use DUT Measurement Setups” on page 448. Keysight N9927-90001 User’s Guide...
Page 445 Opens a menu of uncertainty softkeys for setting the DUT, Preamp, and Uncert. Contributions. Then choose: — Sets the DUT Mode to either Spot (default) or Table. Then choose: ——DUT Mode Set to Spot (default) or to Table For DUT MODE Spot choose: Keysight N9927-90001 User’s Guide...
Page 446 Opens a menu of softkeys to choose a new DUT table. IMPORTANT! The FieldFox displays Replace existing file?, because the displayed default filename is the one last saved. Enter a unique filename to avoid loss of table data. Keysight N9927-90001 User’s Guide...
Page 447 ——Back to return to previous menu. — Uncert Contributions Opens a menu of uncertainty contribution softkeys. Then choose: ——Jitter Uncert. Enable/disable the Jitter Uncertainty. ——ENR Uncert. Enable/disable the ENR Uncertainty. ——Mismatch Uncert. Enable/disable the Mismatch Uncertainty. Keysight N9927-90001 User’s Guide...
Page 448: How To Use Dut Measurement Setups
Figure 26-1 on page 449 — Setting > Type [Downconverter], see Figure 26-2 on page 450 — Setting > Type [Upconverter], see Figure 26-3 on page 451 — Setting > Type [Multi-Stage Converter], see Figure 26-4 on page 452 Keysight N9927-90001 User’s Guide...
Page 449 ––Displays preamp (LNA), if User Cal is available. See next image this figure. DUT – Measurement Setup – Type [Amplifier] with External Amplifier (LNA) and User Calibration Used for setting up DUT parameters with an external preamplifier (LNA) Keysight N9927-90001 User’s Guide...
Page 450 ––DSB: Double Sideband (available for downconverter; averages LSB and USB ENR values) DUT – Measurement Setup – with External Amplifier User Type [Downconverter] (LNA) and Calibration Used for setting up DUT parameters with an external preamp Keysight N9927-90001 User’s Guide...
Page 451 (available for downconverter and upconverter) ––USB: Upper Sideband (available for downconverter and upconverter) DUT – Measurement Setup – with External Amplifier User Type [Upconverter] (LNA) and Calibration Used for setting up DUT parameters with external preamp Preamp Keysight N9927-90001 User’s Guide...
Page 452 ––Multi-Stage Converter: Performs multi-stage frequency conversion (converts RF down/up to IF) DUT – Measurement Setup – Type [Multi-Stage Converter] with External Preamp (LNA) and User Calibration Used for setting up DUT parameters with preamp and User Cal Keysight N9927-90001 User’s Guide...
Page 453 Figure 26-5 on page 454 — Setting Meas Setup > > Next > IF (DUT Out), see Figure 26-6 on page 455 — Setting Meas Setup > > Freq Context [IF], see Figure 26-7 on page 456 Keysight N9927-90001 User’s Guide...
Page 454 Stop, Center, and Span frequency context for a – Type [Amplifier] and [Multi-Stage Converter] --Set the frequency context based on the DUT Type ––Enter the RF (DUT In) values for Start, Stop, Center, and Span frequencies Keysight N9927-90001 User’s Guide...
Page 455 Stop, Center, and Span frequency context for a – Type [Downconverter], [Upconverter], and [Multi-Stage Converter] --Set the frequency context based on the DUT Type ––Enter the RF (DUT In) values for Start, Stop, Center, and Span frequencies Keysight N9927-90001 User’s Guide...
Page 456 Type [Downconverter], [Upconverter], and [Multi-Stage Converter] Used for setting up frequency context for a – Type [Downconverter], [Upconverter], and [Multi-Stage Converter] --Set the frequency context based on the DUT Type ––Enter the frequency context IF (default) or RF Keysight N9927-90001 User’s Guide...
Page 457 — Follow each setting by entering a value using the numeric keypad, arrows, or the rotary knob. — After using the keypad, select a multiplier key. Learn about multiplier abbreviations in Chapter 1, “Overview.” — After use the arrows or the rotary knob, press Enter. Keysight N9927-90001 User’s Guide...
Page 458 For all sideband cases you can enable or disable Loss (device loss) and Temperature (device temperature). Refer to Figure 26-9 on page 459. This section contains the following: — Setting Meas Setup > > Loss Compensation > Before DUT After DUT, see Figure 26-9 on page 459. Keysight N9927-90001 User’s Guide...
Page 459 Used for setting up loss compensation for a DUT – Type [Amplifier], [Downconverter], [Upconverter], and [Multi-Stage Converter] ––Loss compensation can be set before and after the DUT ––Enable or disable the Loss (device loss) and the temperature (device temperature) Keysight N9927-90001 User’s Guide...
Page 460: Single / Continuous / Restart
How to set number of points — Press Sweep 3 — Then Points [current setting] — Then choose from: 03 | 05 | 11 | 21 | 51 | 101 | 201 | 401 | 601 | 801 | 1001 Keysight N9927-90001 User’s Guide...
Page 461: Resolution Bandwidth (Res Bw)
This setting could impact the accuracy of the measurement. See Specifications in http://literature.cdn.keysight.com/litweb/pdf/5990-9783EN.pdf. Alignments The Noise Figure mode requires alignment types: amplitude. Refer to the SA chapter’s “Alignments” on page 180 for information on all alignments. Keysight N9927-90001 User’s Guide...
Page 462: Calculating Noise Figure Measurement Uncertainty
The Noise Figure mode uncertainty calculation does not account for uncertainties caused when the input generated noise reflects back into the amplifier and adds to the total measured noise power. These types of uncertainties are minimized by using well matched noise Keysight N9927-90001 User’s Guide...
Page 463 DUT table (in a *.dut file), or set as a spot value to be applied across all frequencies. DUT and preamplifier *.snp files may be generated in the FieldFox VNA mode, and then imported into the Noise Figure mode. Keysight N9927-90001 User’s Guide...
Page 464 A distribution that was historically used in the industry, before the Rayleigh research, as Uniform (within a documented in Keysight Application Note 1449-3, but is rarely accurate. Refer to Circle) https://literature.cdn.keysight.com/litweb/pdf/5988-9215EN.pdf 1. Reference [1]: GUM 1995 with minor corrections Evaluation of measurement data - Guide to the expression of uncertainty in measurement JCGM 100:2008 First Edition September 2008.
Page 465 FieldFox. In these files, the reflection coefficients have been set to the values specified for the respective model numbers. DUT and preamplifier *.snp files may be generated in the FieldFox VNA mode, and then imported into the Noise Figure mode. Keysight N9927-90001 User’s Guide...
Page 466 . Also, as an aid in determining the cause of measurement uncertainty, any of the individual contributors (user calibration (User Cal Uncert), mismatch uncertainty (Mismatch Uncert), ENR uncertainty (ENR Uncert), or jitter uncertainty (Jitter Uncert) may be excluded from the uncertainty analysis. Keysight N9927-90001 User’s Guide...
Page 467: Using Enr Tables
(to return to previous softkey menu) 4. Then edit the table as necessary for your devices and measurements by |Γ entering in Header, Auto-populate, ENR, ENR uncertainty, On |, and Off Γ |. Refer to Figure 26-10 on page 468. Keysight N9927-90001 User’s Guide...
Page 468: About Enr (*.Enr), Preamplifier (*.Amp), And Dut (*.Dut) Files
— ENR files are stored as *.enr files. Existing ENR files that are loaded into the FieldFox can be overwritten. Your edited file will NOT be overwritten when firmware is updated. — To DELETE a *.enr file, use the Manage Files feature. Learn more in “Manage Files” on page 552. Keysight N9927-90001 User’s Guide...
Page 469 — DUT files are stored as *.dut files. Existing *.dut files that are loaded into the FieldFox can be overwritten. Your edited file will NOT be overwritten when firmware is updated. — To DELETE a *.dut file, use the Manage Files feature. Learn more in “Manage Files” on page 552. Keysight N9927-90001 User’s Guide...
Page 470: Using Markers (Noise Figure)
Marker table annotation under the graticule. – Marker table data under the graticule. – Displays uncertainty values for select measurements. IMPORTANT! Noise Figure has asymmetric uncertainty (see box in figure). Noise Factor and Noise Temperature have symmetric uncertainty. Keysight N9927-90001 User’s Guide...
Page 471: Calibration Wizard
DUT when there is no user calibration. But, if there is a user calibration, the gain calculation is independent of the receiver bandwidth from the receiver calibration. The Keysight N9927-90001 User’s Guide...
Page 472 DUT will be during the measurement. Optimizing Measurement Accuracy: — Both gain and noise figure measurement accuracy will be enhanced by using a noise source with as low a reflection coefficient as possible for the user calibration. Keysight N9927-90001 User’s Guide...
Page 473 (bias, control, and RF) have been made properly. The user calibration can be started immediately following the successful noise figure measurement of the preamplifier, with no change to the setup. Keysight N9927-90001 User’s Guide...
Page 474: How To Use Auto-Integration
478. For the following example, these settings were used on the FieldFox with a Keysight 346C K01 noise source that had the following characteristics: Keysight 346C K01 characteristics at 50 GHz ENR of 11. 8 dB Noise figure 8.7 dB Gain 9.5 dB...
Page 475: Auto-Integration Procedure
2. Enter the Noise Source ENR information into a table: If you have previously saved your noise source’s ENR information into a table, skip this step and proceed to step 4. Select Measure Setup Then choose: — Noise Source then — ENR Mode Table (default) Keysight N9927-90001 User’s Guide...
Page 476 > 0.10 dB — Max. Time/Pt > 300s — Jitter Warning ON (default) — Back to return to previous menu Press Uncertainty then — Uncert. Bars ON 6. Leave the setup to run for desired time. Keysight N9927-90001 User’s Guide...
Page 477 Noise Figure Mode (Option 356 – CPU2 Only) How to use Auto-Integration Figure 26-13 Example of Jitter Uncertainty (401 points)—with Uncertainty Bars Keysight N9927-90001 User’s Guide...
Page 478 Noise Figure Mode (Option 356 – CPU2 Only) How to use Auto-Integration Figure 26-14 Example of Jitter Uncertainty (401 points)—without the Uncertainty Bars Keysight N9927-90001 User’s Guide...
Page 479 (i.e, blue circles around points where the jitter goal was exceeded). — Press to toggle Jitter Warning OFF ON (default = ON) Figure 26-15 Example of Jitter Uncertainty—with Jitter Uncertainty Trace Keysight N9927-90001 User’s Guide...
Page 480: Other Features Available
— Display Lines - For information on using Limit Lines, refer to the SA chapter’s section, “Display Line” on page 189. — Scale Settings – For information on using Autoscale, Autoscale All, and Scale settings, “All about Scale Settings” on page 506. Keysight N9927-90001 User’s Guide...
Page 481: Troubleshooting
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 26-16 Example of an invalid measurement Keysight N9927-90001 User’s Guide...
Page 482 Noise Figure Mode (Option 356 – CPU2 Only) Troubleshooting Keysight N9927-90001 User’s Guide...
Page 483: 25 Data Analysis Features
Keysight Handheld Analyzers N99xxA User’s Guide 25 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 484 “How to move a Marker after it is created” on page 484 “About Delta Markers”...
Page 484: All About Markers
Delta softkey is black to indicate the current setting of each marker. — Then move the marker as when it was first created. — Markers can also be moved using one of the marker search functions. Refer to “Searching with Markers” on page 490. Keysight N9927-90001 User’s Guide...
Page 485: About Delta Markers
Peak search functions can be performed using delta markers. Figure 25-2 A Delta marker and its associated reference marker. In the graphic above, the marker readout shows the difference between the two markers in frequency and amplitude. Keysight N9927-90001 User’s Guide...
Page 486: Signal Track Marker (Nf And Sa Mode Only)
The Marker Table can be displayed at the bottom of the FieldFox screen. It can display information for up to 6 markers in a full-width window, and up to 3 markers for a half-width window (NA mode). The marker table “squeezes” the graticule area when activated. Keysight N9927-90001 User’s Guide...
Page 487: Coupled Markers (Na Mode)
Coupled Markers move on ALL traces at the same time (NA shown). 1. IQA mode has coupled markers, but the behavior is different than NA mode’s coupled markers. Refer to “Coupled Markers (Waveform Only)” on page 258. Keysight N9927-90001 User’s Guide...
Page 488: Marker Colors
X-axis location on the specified trace. Learn more about IQA Traces in “Trace Display States (IQA Mode)” on page 261. Learn more about SA Traces in “Trace Display States (SA Mode)” on page 178. Keysight N9927-90001 User’s Guide...
Page 489: Marker Format
R + jX 22.8Ω -j61.4Ω Complex impedance format (3rd number is distance for Time Domain) 287.9fF Z Magnitude 66.08Ω Impedance Mag. Phase 73.8° Real 0.2003 More Imaginary -0.6727 Mag & Phase 0.705, -73.7° dB Angle -2.1 dB, -138.2° Keysight N9927-90001 User’s Guide...
Page 490: Searching With Markers
FieldFox interpolates between measured data points to find the exact Target value to two decimal points. The interpolated X-axis value is displayed in the marker readout or marker table. Subsequent presses of the Target softkey cause the marker to move to the right to Keysight N9927-90001 User’s Guide...
Page 491 ——If you first enter Negative, then Positive values, it may be necessary to press Marker, then More, then Markers All Off. Figure 25-4 S21 of a filter with BW Markers and associated readout values. The search criteria is -3 dB. Keysight N9927-90001 User’s Guide...
Page 492 Peak Left (Not IQA) Moves the active marker to the next data point to the left that meets the ‘Peak’ criteria. When no data points to the left meet the ‘Peak’ criteria, the marker does not move. Keysight N9927-90001 User’s Guide...
Page 493 DUT. Use in conjunction with marker table and limit lines to verify your DUT’s signals and to adjust or tune as needed. See also, “All about Limit Lines” on page 499. Keysight N9927-90001 User’s Guide...
Page 494 Mkr5 & Mkr6 Search — For Mkr1 & Mkr2 maximum or minimum value search: — Then Mkr5 Peak — Mkr5 Min Or for Mkr3 & Mkr4 maximum or minimum value search: — Then Mkr6 Peak — Mkr6 Min Keysight N9927-90001 User’s Guide...
Page 495: What Is A 'Peak
To make these settings, create a non-DTF CAT mode measurement, then change the measurement back to DTF. How to set Peak Criteria — Press Mkr ->/Tools. — In CAT and NA modes: — Then Peak Search. — Then Peak Criteria Keysight N9927-90001 User’s Guide...
Page 496 Peak Search, including the use of peak criteria rules. See also, “Using Markers (IQA)” on page 256. ——Delta Ref Fixed Enables or disables the delta reference fixed marker. Keysight N9927-90001 User’s Guide...
Page 497: Marker Functions
(IQ Analyzer (NOT waveform) and SA mode ONLY) The acquisition becomes the magnitude of the active marker. — Mkr->TuneFreq (SA mode with Tune & Listen ONLY) The Tune & Listen Frequency becomes the frequency of the active marker. The following applies to DTF Measurements ONLY: Keysight N9927-90001 User’s Guide...
Page 498: I/Q Analyzer (Iqa) Marker Functions
— Band/Interval Power Marker (Available in I/Q Analyzer mode) — Frequency Counter at Marker — Audio Beep with Marker — Time Zero Fixed Marker Learn more about these marker functions starting in the SA chapter here: “Noise Marker” on page 190. Keysight N9927-90001 User’s Guide...
Page 499: All About Limit Lines
——Relative - the limit line moves relative to the center frequency and acquisition. Note: It is easiest to first create Fixed Limits, then change this setting to Relative. Learn more “Relative Limit Lines” on page 500. — Upper/Lower – Press Edit to toggle between the following: Keysight N9927-90001 User’s Guide...
Page 500: Relative Limit Lines
A limit line can be built from an existing trace. One X/Y point is made from each measured data point. Then, using an offset value, you can shift the limit line UP for upper limits or DOWN for lower limits. Keysight N9927-90001 User’s Guide...
Page 501: Limit Options
UP or DOWN. Learn how below. Limit Options How to set Limit Options — Press Exit if the limit table is visible. — Then Options. — Then choose from the following: — Beep Keysight N9927-90001 User’s Guide...
Page 502: How To Save And Recall Limits
— Then choose from the following: — Save Limits After limit lines have been defined, this saves the line definition to a file on the specified device. — Recall Limits Recalls a limit Line definition from the specified device. Keysight N9927-90001 User’s Guide...
Page 503: Display Line (I/Q, Nf, And Sa Modes Only)
Display Line OFF ON — Then enter a Y-axis value using the arrows or the rotary knob, then press Enter. Or enter a value using the numeric keypad and press a suffix key or press Enter. Keysight N9927-90001 User’s Guide...
Page 504: All About Trace Math
— Then choose one of the following: — Data + Mem [D+M] Current measurement data is added to the data in memory. — Data – Mem D-M] Current measurement data is subtracted from the data in memory. Keysight N9927-90001 User’s Guide...
Page 505: About Math Operations
However, the second pair of connectors have much better S11 performance (–50 and –52). The relative significance is shown in Data-Mem. Values to compare Data/Mem Data-Mem –10 dB and –12 dB 2 dB –24 dB –50 dB and –52 dB 2 dB –64 dB Keysight N9927-90001 User’s Guide...
Page 506: All About Scale Settings
— Enter a negative value by pressing Run/Hold (+/-) either before or after typing a value. Scale annotation on the FieldFox screen Reference Line = red arrow Ref Level = -40 dB Ref Position = 1 Scale = 2 dB per division Keysight N9927-90001 User’s Guide...
Page 507: Averaging (Cat, Na, Power Meter, Channel Scanner, And Pulse Measurement Modes Only)
N is the current count setting. — Enter a value using the numeric keypad. Enter 1 for NO averaging. — Press Enter. — While Trace Averaging is in process, press Sweep 3 then Restart to restart the averaging at 1. Keysight N9927-90001 User’s Guide...
Page 508 Data Analysis Features All about Scale Settings Keysight N9927-90001 User’s Guide...
Page 509: 26 System Settings
Keysight Handheld Analyzers N99xxA User’s Guide 26 System Settings In this Chapter “Run/Hold” on page 510 “Preset” on page 511 “User Preset” on page 511 “Audio (Volume) Control” on page 512 “Display (Settings)” on page 513 “Display Brightness” on page 513 “Display Colors”...
Page 510: Run/Hold
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. Keysight N9927-90001 User’s Guide...
Page 511: Preset
“Set File Type and Select Device” on page 549. How to set User Preset — Make your custom settings for all modes. — When finished, press Preset. — Then Save User Preset, then select to confirm. Keysight N9927-90001 User’s Guide...
Page 512: How To Recall User Preset
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). Keysight N9927-90001 User’s Guide...
Page 513: Display (Settings)
0 and 100%. Display Colors Change Display Colors to alter the viewing scheme. How to set Display Colors — Press System 7 — Then Display — Then Display Colors — Then choose one of the following: Indoor Keysight N9927-90001 User’s Guide...
Page 514: Trace Width
The title can contain up to approximately 65 alpha-numeric characters. To view the Title area, see the Screen Tour in “Screen Tour” on page How to add or edit a Title — Press System 7 — Then Display — Then Title Keysight N9927-90001 User’s Guide...
Page 515: Edit Keywords
Quick Settings Table All preferences can be set from the Quick Settings table. They are immediately saved as Preferences when Done is pressed. How to view and change Preference Quick Settings — Press System 7 — Then Preferences Keysight N9927-90001 User’s Guide...
Page 516: Save And Reset Preferences
“File Saving Naming Options” on page 523 “CAT (Distance Units)” on page 523 “CAT/NA” on page 524 “SA” on page 525 Save and Reset Preferences All preference settings can be made at one time from the Quick Settings table. Keysight N9927-90001 User’s Guide...
Page 517: Global Settings (Overview)
— 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. Keysight N9927-90001 User’s Guide...
Page 518 FieldFox measurements. — OFF – Source power is kept ON at all times, including during trigger Hold mode and between single sweep acquisitions. The RF source stays at the stop frequency until another sweep begins. This provides Keysight N9927-90001 User’s Guide...
Page 519: Display
— Then Preferences — 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 Keysight N9927-90001 User’s Guide...
Page 520: Audio
— Then use arrow softkeys or the knob to select Audio — Then Edit for each of the following: — Mute ——On ——Off (default) — Volume — 0 to 100 (default is 50) — Then Done Edit (for each change in setting) Keysight N9927-90001 User’s Guide...
Page 521: Date And Time
— Press System 7 — Then Preferences — 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 Keysight N9927-90001 User’s Guide...
Page 522: File Folders
— 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. — User Folder – displays the default folder location. Keysight N9927-90001 User’s Guide...
Page 523: Alpha Numeric Editing
— Then Preferences — Then Edit for each of the following: — Distance Units: ——Meters (default) ——Feet ——Inches — TDR Sweep: ——Cable (default and the most accurate) ——Auto — Then Done Edit (after each change in setting) Keysight N9927-90001 User’s Guide...
Page 524: Cat/Na
——Default ——Advanced — Default Factory Error Corr. (N995xA/6xA Only) ——Enhanced Response ——Full 2 Port — Extended Cal Default (N995xA/6xA Only) ——On ——Off (default on models >6 GHz) — Then Done Edit (after each change in setting) Keysight N9927-90001 User’s Guide...
Page 525: System Configuration
How to Install Options A.lic file must already be on a USB Flash Drive. To learn how to obtain a.lic file, visit: http://www.keysight.com/find/softwarelicense Insert the USB Flash Drive in the FieldFox. — Press System 7 — Then System Configuration Keysight N9927-90001 User’s Guide...
Page 526: Gnss (Gps+) And Gps
— Without Option 307, GPS is usable ONLY with an external GPS receiver that is shipped with Microsoft “Streets and Trips” and “AutoRoute”. The GPS receiver is NOT available from Keysight. Only the GPS USB receiver is used with the FieldFox. Therefore, it is NOT necessary to purchase the very latest version of the map software.
Page 527 - 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” on page 530.
Page 528 - GPS ON, but NOT locked on satellites. - GPS ON, but no GPS receiver is present or detected. The following annotation (BLUE circle in above image) indicates the INTERNAL, top-panel antenna status: — Ant: INIT – antenna status initializing. Keysight N9927-90001 User’s Guide...
Page 529 Choose from: — ddd°mm’ ss.sss” degrees, minutes, seconds (default setting) — ddd°mm.mmmmm’ degrees, minutes, fractional minutes — ddd.ddddddd° decimal degrees — None Lat/Lon is not displayed. — Elevation Unit Choose from: — (Meters) — Feet — Inches Keysight N9927-90001 User’s Guide...
Page 530: Frequency Reference Source
GPS source. How to select Frequency Reference Source — Press System 7 — Then System Configuration — Then Frequency Ref — Then Freq Ref Source — Then choose from the following: — Internal frequency reference Keysight N9927-90001 User’s Guide...
Page 531 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” on page Keysight N9927-90001 User’s Guide...
Page 532: Variable Voltage Source (Opt. 309)
See the connector in “Left Side Panel” on page An optional SMB (f) to BNC (m) bias-tee power cable is available with Keysight part number: N9910X-713. The following status line is provided near the top of the FieldFox screen.
Page 533: Security Level
“GPS – Distance Settings” on page 521. How to Update Date and Time using Internet This method of setting the Date and Time does NOT have the security restrictions of the other methods (listed below). Keysight N9927-90001 User’s Guide...
Page 534 — Then More. — Then Date and Time. — Press the arrows to highlight the row to be edited. — Then press Edit. — Use the arrows or rotary knob to select the field to be edited. Keysight N9927-90001 User’s Guide...
Page 535: Lan Settings
LAN Settings Configure the LAN settings to be used to communicate with the Data Link Software and connect to the FieldFox for remote SCPI operation. Learn more about Data Link at: www.keysight.com/find/fieldfoxsupport. Table 26-1 LAN LEDs (N995xA, N996xA applies to: N991xA/2xA/3xA units with serial , and number prefixes ≥5607)
Page 536: Power On
Power ON When the FieldFox is without a power source, this setting allows the FieldFox to power ON as soon as a charged battery or the DC Adapter is inserted without pressing the power button. Keysight N9927-90001 User’s Guide...
Page 537: Fieldfox Package Installer
— Press Start Install — “Current Step Progress:” bar and a “Total Progress:” bar are displayed along with this message: “Copying package. Do not remove install media.” Keysight N9927-90001 User’s Guide...
Page 538 If your stored any user files to a USB or SD card, this procedure restores those files. From the initial Installer menu: — Press Utility — Then Cancel to exit without restoring your files and returning to the initial Installer menu. Press Restore Data Keysight N9927-90001 User’s Guide...
Page 539: Service Diagnostics
Thru connection. The format is P1 <date time>, P2 <date time>, P1-P2 <date time>. The factory calibration is updated when you send your FieldFox to Keysight for Instrument Calibration. Learn more in “Instrument Calibration” on page 591.
Page 540 — The FieldFox is rebooted, which manages the newly-freed data and re-writes the factory cal kits and cable files. Rebooting is not required on the N995xA, N996xA, and applies to: N991xA/2xA/3xA units with serial number prefixes ≥5607. Keysight N9927-90001 User’s Guide...
Page 541: Using The Mini-Usb Port To Send Scpi Commands And Queries
PC’s standard USB 2.0 port. Using Keysight IO Libraries, Connection Expert and connecting via a VISA connection, you can send SCPI commands via the Keysight Interactive IO window to the FieldFox. Refer to your IO Libraries online help for the details on connecting to your instrument. Refer to keysight.com...
Page 542 N991xA/2xA/3xA units with serial number prefixes ≥5607) Mini-USB Connection to PC with IO Libraries — In the Keysight Interactive IO window: Type in your SCPIs on the Command line and click Send Command, Read Response, or Send & Read. Refer to...
Page 543: 28 File Management
Keysight Handheld Analyzers N99xxA User’s Guide 28 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.D...
Page 544: Saving And Recalling Files
FieldFox’s internal An example for transferring an image: memory. http://na.support.keysight.com/fieldfox/help/Programming/webhelp/ Examples/Transfer_Image_to_PC.htm. Please note that the receiving computer program needs to be able to handle the binary block transfer. See also FieldFox Programming Guide Keysight N9927-90001 User’s Guide...
Page 545 MATLAB files (*.mat). Learn more about FieldFox and 89600 VSA software, refer to Chapter 13, “Remote Server Mode (Requires CPU2 and SA Hardware/SA Option 233)” and to http://rfmw.em.keysight.com/wireless/helpfiles/89600B/WebHelp/89600 .htm. Figure 28-1 I/Q Analyzer Mode (IQA) MATLAB File Save Keysight N9927-90001 User’s Guide...
Page 546 — Press Alt Keyboards to display the different keyword choices. You can select either an ABC or Qwerty style keyboard. Refer to “Alpha Numeric Editing” on page 523. Keysight N9927-90001 User’s Guide...
Page 547 When the current filename is complete — Press Done to save the file to the specified filename. — Press Cancel to close the labeler without saving a file. Keysight N9927-90001 User’s Guide...
Page 548: Recall Files
— Then Recall File or Enter. — Cancel to cancel recall file and return to the previous menu. Move (Copy) Files The FieldFox can Move files (i.e., including Trace + State files, and image files). Keysight N9927-90001 User’s Guide...
Page 549: Set File Type And Select Device
Saves/Recalls/Moves (Copies) files to/from the FieldFox internal memory. To specify a folder, first select Manage Folders (learn how in “Manage Folders” on page 554). The Data Link software will read data ONLY from the \UserData folder. Keysight N9927-90001 User’s Guide...
Page 550 ——In Power Meter (with Option 208 Frequency Offset Power Sensor (FOPS)), all visible traces are saved. Each trace is saved to a separate column labeled Output Power or Memory. ——In VVM Mode, NO data is saved. Keysight N9927-90001 User’s Guide...
Page 551 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). It can also be imported into spreadsheet software such as Microsoft Excel.
Page 552: Manage Files
Select a file or files to copy. — Then select a device to copy the file to. Choose from Copy to Internal, Copy to USB (must be inserted), or Copy to SD Card (must be inserted). Keysight N9927-90001 User’s Guide...
Page 553 Enter a suffix that the current filename or filenames are to be renamed. — Do Rename Enable renaming of the current file or files. Insert only ONE USB Flash Drive in the FieldFox when saving or copying files. Keysight N9927-90001 User’s Guide...
Page 554: Manage Folders
For more on renaming folders/files, refer to “How to use the FieldFox labeler ” on page 546, and “Prefixes and Suffixes for Filenames” on page 555. — Press Exit when finished. Keysight N9927-90001 User’s Guide...
Page 555: Edit Keywords
The prefix and suffix (Auto Append) can be used together to organize files. Once set and enabled, they are automatically entered as the beginning (Prefix) and end (Suffix - using Auto Append) of a filename when performing a Save Keysight N9927-90001 User’s Guide...
Page 556 — to turn off Auto Append. — Number to auto-append a number using format “_nnn” sequentially to all saved files. — Date to auto-append a date and time using format “_YYYY-MM-DD.HH.MM.SS” sequentially to all saved files. Keysight N9927-90001 User’s Guide...
Page 557 — Press Save/Recall 9 — Then More — Then Prefix Suffix — Then Auto Append — to disable the Auto Append (Suffix) on subsequently saved files. Auto, and Number Suffix Reset softkeys are grayed out (inactive). Keysight N9927-90001 User’s Guide...
Page 558: Press Printing
Columns for up to 16 total images to be printed on a single page. — If necessary, edit the filenames to be printed. — Select Done. Then Print Selected\nFiles to begin printing. ——Print Current Screen – Immediately prints the FieldFox screen using the selected Printer and Page Setup settings. Keysight N9927-90001 User’s Guide...
Page 559: 29 Working With The Lithium-Ion Battery
Keysight Handheld Analyzers N99xxA User’s Guide 29 Working with the Lithium-Ion Battery In this Chapter “Viewing the Battery Charge Status” on page 559 “Charging the Battery” on page 561 “Reconditioning Battery” on page 564 “Battery Care” on page 564 “Maximizing Battery Life” on page 564 “Lithium-Ion Battery Disposal”...
Page 560: Service Diagnostics-Battery Screen
Each lithium ion battery has an LED gauge that displays its charge status. The gauge is active unless the battery is in shut down mode. To view the LED gauge, open the FieldFox battery compartment door, remove the battery, then press the button on the battery. Keysight N9927-90001 User’s Guide...
Page 561: Charging The Battery
Internal Charging with the AC/DC Adapter Read the safety information in “For the AC/DC Adapter” on page 570 Internal charging time for a fully depleted battery is approximately 4 hours with the FieldFox either ON or OFF. Keysight N9927-90001 User’s Guide...
Page 562 — FieldFox OFF: Charging is indicated by the FieldFox power LED glowing amber, with its intensity increasing from dim to bright every few seconds. This pattern repeats until the LED turns off when charging is done. Learn more on “Front Panel” on page Keysight N9927-90001 User’s Guide...
Page 563: Using The External Battery Charger (N9910X-872)
LED charge gauge is being renewed. See “Reconditioning Battery” on page 564 Yellow/green Battery is reconditioned Red flashing Error Yellow Standby For more information, refer to the Instruction Manual included with the external battery charger. Keysight N9927-90001 User’s Guide...
Page 564: Reconditioning Battery
— Store batteries in a cool, dry location, away from metal objects and corrosive gases. Storage temperature limits (20% to 50% relative charge is recommended): Transportation: –20°C to 50°C Within 1 month: –20°C to 45°C Within 6 months: –20°C to 40°C Within 1 year: –20°C to 35°C Keysight N9927-90001 User’s Guide...
Page 565: Lithium-Ion Battery Disposal
Regulations vary for different countries. Dispose of the battery in accordance with local regulations. Keysight Technologies, through Rechargeable Battery Recycling Corporation (RBRC), offers free and convenient battery recycling options in the U.S. and Canada.
Page 566 Working with the Lithium-Ion Battery Lithium-Ion Battery Disposal Keysight N9927-90001 User’s Guide...
Page 567: 30 Safety Considerations
Keysight Handheld Analyzers N99xxA User’s Guide 30 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 568: For The Fieldfox
The unit may be used only in the operating conditions and positions specified by the manufacturer. Do not install substitute parts or perform any unauthorized modification to the product. Return the product to Keysight Technologies or a designated repair center for service to ensure that safety features are maintained.
Page 569 Safety Considerations For the FieldFox The measuring terminals on this instrument are designed to be used with external signals described in Measurement Category I, but NOT with external signals described in Categories. Keysight N9927-90001 User’s Guide...
Page 570: For The Ac/Dc Adapter
The AC/DC adapter is for indoor use only. Never use a modified or damaged charger. Use the original AC–DC adapter ONLY. The AC/DC adapter is designed for use in Installation Category II and Pollution Degree 2 per IEC 61010-1. Keysight N9927-90001 User’s Guide...
Page 571: For The External Battery Charger (N9910X-872)
For the External Battery Charger (N9910X-872) If charging batteries externally, use the optional external charger available from Keysight, or another SMBus charger of level II or higher. Never use a non–SMBus charger because the battery issues commands over the SMBus to the charger to control the charge rate and voltage.
Page 572 Must be kept away from children. — Must not be short circuited. — Must be replaced only with Keysight qualified Li–ion batteries. — If replaced or charged improperly, there is a danger of explosion. — Do not connect the positive terminal and negative terminal of the battery to each other with any metal object (such as wire).
Page 573: Standard Capacity Battery (N9910X-870)
— Must be kept away from children. — Must not be short circuited. — Must be replaced only with Keysight qualified Li–ion batteries. — If replaced or charged improperly, there is a danger of explosion. Do not connect the positive terminal and negative terminal of the battery to each other with any metal object (such as wire).
Page 574 For a Korean battery safety consideration translation, refer to Appendix D:, “Korean Battery Safety Translation.” For a Russian battery safety consideration translation, refer to Appendix E:, “Russian Battery Safety Translation.” Keysight N9927-90001 User’s Guide...
Page 575: Battery Protective Functions
Primary Overdischarge Current: This prevents the battery from being discharged if the average current out of the battery reaches or exceeds 7A for a time period of 5 seconds or more. This protection can be reset by removing the load. Keysight N9927-90001 User’s Guide...
Page 576 Tertiary Overtemperature: A current interrupt device (CID) within each Li-ion cell will permanently open up when the temperature reaches 95C. As each cell fuse is permanently interrupted, overall battery performance will become severely degraded, up to and including disabling the battery. Keysight N9927-90001 User’s Guide...
Page 577: Battery Protective Functions (N9910X-870)
12.5A for a time period of 183 microseconds or more. This protection can be reset by removing the load. Keysight N9927-90001 User’s Guide...
Page 578: Batteries: Safe Handling And Disposal
Refer to battery manufacture Safety Data Sheet (SDS) for safe handling and disposal information. Battery SDS's are located at: https://regulations.about.keysight.com/msds/default.htm Battery Transportation Batteries are generally subject to transportation regulations, refer to the battery Safety Data Sheet (SDS) and contact your shipping department for transportation requirements. Keysight N9927-90001 User’s Guide...
Page 579: Environmental Requirements
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 instrument. Keysight N9927-90001 User’s Guide...
Page 580: Fieldfox Markings
This symbol indicates the Environmental Protection Use Period (EPUP) for the product’s toxic substances and for the China RoHS requirements. CAUTION, risk of danger, refer to safety information in manual. Dispose of properly Keysight N9927-90001 User’s Guide...
Page 581: Battery Markings
The C-Tick Mark is a registered trademark of the Australian Spectrum Management Agency. The RCM Mark is a registered trademark of the Australian Communications and Media Authority. Korean Certification (KC) mark; includes the marking’s identifier code which follows the format: KCC-REM-YYY-ZZZZZZZZZZZZZZ or MSIP-REM-YYY-ZZZZZZZZZZZZZZ Keysight N9927-90001 User’s Guide...
Page 582 Ten years is the expected useful life of the product. This symbol indicates the Environmental Protection Use Period (EPUP) for the product’s toxic substances and for the China RoHS requirements. Keysight N9927-90001 User’s Guide...
Page 583: Packaging Markings
China’s safety and EMC compliance mark. Taiwan’s safety and EMC compliance mark. Singapore’s safety mark. Korean Certification (KC) mark; includes the marking’s identifier code which follows the format: KCC-REM-YYY-ZZZZZZZZZZZZZZ or MSIP-REM-YYY-ZZZZZZZZZZZZZZ GOST, Russia’s safety and EMC mark. Keysight N9927-90001 User’s Guide...
Page 584: Certification And Compliance Statements
Certification Keysight Technologies, Inc. certifies that this product met its published specifications at the time of shipment from the factory. Keysight Technologies, Inc. further certifies that its calibration measurements are traceable to the United States National Institute of Standards and Technology, to the extent allowed by the Institute's calibration facility, and to the calibration facilities of other International Standards Organization members.
Page 585: Emc
This equipment is Class B suitable for home electromagnetic environment and is suitable for use in all areas. Acoustic Statement (European Machinery Directive) Acoustic Noise Emission LpA <70 dB Operator position Normal operation position per ISO 7779 Keysight N9927-90001 User’s Guide...
Page 586 Safety Considerations Certification and Compliance Statements Keysight N9927-90001 User’s Guide...
Page 587: A:.connector Care Review
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 588 Cleaning connectors with alcohol shall only be done with the DC power cord removed, in a well-venti- lated area, and with the power to the FieldFox turned OFF. Allow all residual alcohol moisture to evapo- rate, and the fumes to dissipate prior to energizing the instrument. Keysight N9927-90001 User’s Guide...
Page 589 Keysight Handheld Analyzers N99xxA User’s Guide Specifications/Data Sheet To ensure the highest accuracy and consistency, the FieldFox Specifications are now stored ONLY at: http://literature.cdn.keysight.com/litweb/pdf/5990-9783EN.pdf...
Page 590 Specifications/Data Sheet Keysight N9927-90001 User’s Guide...
Page 591 Connector Care. Learn more in “Connector Care Review” on page 587. How do I Get an Instrument Calibration? To get your Keysight instrument calibrated, send it to one of the Keysight Technologies service centers. Please visit this website to learn how: www.keysight.com/find/calibration.
Page 592 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...
Page 593 Keysight Handheld Analyzers N99xxA User’s Guide Korean Battery Safety Translation...
Page 594 Korean Battery Safety Translation Keysight N9927-90001 User’s Guide...
Page 595 Korean Battery Safety Translation Keysight N9927-90001 User’s Guide...
Page 596 Korean Battery Safety Translation Keysight N9927-90001 User’s Guide...
Page 597 Korean Battery Safety Translation Keysight N9927-90001 User’s Guide...
Page 598 Korean Battery Safety Translation Keysight N9927-90001 User’s Guide...
Page 599 Korean Battery Safety Translation Keysight N9927-90001 User’s Guide...
Page 600 Korean Battery Safety Translation Keysight N9927-90001 User’s Guide...
Page 601 Korean Battery Safety Translation Keysight N9927-90001 User’s Guide...
Page 602 Korean Battery Safety Translation Keysight N9927-90001 User’s Guide...
Page 603 Keysight Handheld Analyzers N99xxA User’s Guide Russian Battery Safety Translation...
Page 604 Russian Battery Safety Translation Keysight N9927-90001 User’s Guide...
Page 605 Russian Battery Safety Translation N9927-90001 Keysight N9927-90001 User’s Guide...
Page 606 Russian Battery Safety Translation N9927-90001 Keysight N9927-90001 User’s Guide...
Page 607 Russian Battery Safety Translation N9927-90001 Keysight N9927-90001 User’s Guide...
Page 608 Russian Battery Safety Translation N9927-90001 Keysight N9927-90001 User’s Guide...
Page 609 Russian Battery Safety Translation N9927-90001 Keysight N9927-90001 User’s Guide...
Page 610 Russian Battery Safety Translation N9927-90001 Keysight N9927-90001 User’s Guide...
Page 611 Russian Battery Safety Translation N9927-90001 Keysight N9927-90001 User’s Guide...
Page 612 Russian Battery Safety Translation N9927-90001 Keysight N9927-90001 User’s Guide...
Page 613 Russian Battery Safety Translation N9927-90001 Keysight N9927-90001 User’s Guide...
Page 614 Russian Battery Safety Translation Keysight N9927-90001 User’s Guide...
Page 615 Keysight Handheld Analyzers N99xxA User’s Guide Keysight Software End-User Licensing Agreement (EULA)
Page 616 Keysight Software End-User Licensing Agreement (EULA) Keysight N9927-90001 User’s Guide...
Page 617 Keysight Software End-User Licensing Agreement (EULA) Keysight N9927-90001 User’s Guide...
Page 618 Keysight Software End-User Licensing Agreement (EULA) Keysight N9927-90001 User’s Guide...
Page 619 CAT mode icons alignments,align all now 1-port cable loss installing alignments,individual measurements alignments,overview 2-port insertion loss markings all about markers measurements maximizing life AM FM Tune & Listen calibration Keysight N9927-90001 User’s Guide...
Page 620 , 187, group delay , 94, detection method reference , 187, display External Gain , 154, brightness External triggering , 101, 172, colors external triggering , 172, high-temperature front panel external zeroing protection preferences hold settings Keysight N9927-90001 User’s Guide...
Page 621 IF output indicator (*), old data preferences individual,alignments file Magnitude Offset initial use, preparing for select magnitude offset input voltages and power, CAT mode , 47, Manage Files maximum mode Manage Folders insertion loss measurements managing measurements Keysight N9927-90001 User’s Guide...
Page 622 VVM O, S, L cal power requirements for the mode O, S, L calibration AC/DC adapter compressed , 155, 156, Occupied Bandwidth power sensor input return loss , 34, Keysight N9927-90001 User’s Guide...
Page 623 NA mode Resolution Bandwidth SA NA Mode type , 51, mode , 165, 214, scale settings, NA mode type, SA mode resolution bandwidth, NF scale, setting , 49, Sweep Acquisition mode screen cleaning sweep acquisition Keysight N9927-90001 User’s Guide...
Page 624 Window Settings , 68, window settings, DTF units, changing , 69, units, DTF, changing USB keyboard zero span , 170, Zeroing VVM mode external reference zeroing, external User Preset zeroing, VVM mode User Tags , 229, values Keysight N9927-90001 User’s Guide...
Page 626 This information is subject to change without notice. © Keysight Technologies 2014-2019 Edition 4, September 2019 www.keysight.com...

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Keysight FieldFox A Series User Manual

Chapter 8, "Calibration for NA, CAT, and VVM Modes

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