Keysight A Series User Manual
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Keysight A Series User Manual

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Table of Contents

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Keysight
A-Series FieldFox Analyzers
- User's Guide (Unabridged)
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
This is the unabridged version of the abridged N9927-90001 User's Guide that is available as printed format. The
abridged User's Guide can be found here:
https://www.keysight.com/us/en/assets/9018-03771/user-manuals/9018-03771.pdf
User's Guide (Unabridged)
)

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Summary of Contents for Keysight A Series

  • Page 1 Keysight A-Series FieldFox Analyzers - User's Guide (Unabridged) 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 This is the unabridged version of the abridged N9927-90001 User's Guide that is available as printed format. The abridged User’s Guide can be found here:...
  • 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: https://www.keysight.com/find/fieldfox To receive the latest updates by email, subscribe to Keysight Email Updates at the following URL: https://www.keysight.com/find/MyKeysight Information on preventing instrument damage can be found at: https//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.12.5x 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 within its warranty period.

  • Page 7: Table Of Contents

    How to select CAT Mode ..........61 Keysight N9927-90020 User’s Guide...
  • Page 8 How to enter Cable Loss and Velocity Factor....... . .79 Keysight N9927-90020 User’s Guide...
  • Page 9 Multi-Trace Configurations ..........105 Keysight N9927-90020 User’s Guide...
  • Page 10 Transform Window ............128 Keysight N9927-90020 User’s Guide...
  • Page 11 SA Mode Settings ............165 Keysight N9927-90020 User’s Guide...
  • Page 12 Setting the Mkr->TuneFreq Softkey ........185 Keysight N9927-90020 User’s Guide...
  • Page 13 Average Type ............213 Keysight N9927-90020 User’s Guide...
  • Page 14 Spectrum Emission Mask (SEM) — (Requires CPU2, SA Mode Only)....251 How to select Spectrum Emission Mask (SEM) Measurement ....253 Keysight N9927-90020 User’s Guide...
  • Page 15 How to display the Trace States ......... 279 Keysight N9927-90020 User’s Guide...
  • Page 16 .............307 Keysight N9927-90020 User’s Guide...
  • Page 17 Trace Display States (EMI Mode) ......... . . 340 Keysight N9927-90020 User’s Guide...
  • Page 18 Screen Annotation ............392 Keysight N9927-90020 User’s Guide...
  • Page 19 USB Antenna Setup Procedure ..........449 Keysight N9927-90020 User’s Guide...
  • Page 20 Spectrogram Display (SA Option) ......... . .516 Keysight N9927-90020 User’s Guide...
  • Page 21 Normalize ............. 538 Keysight N9927-90020 User’s Guide...
  • Page 22 Overview..............559 Keysight N9927-90020 User’s Guide...
  • Page 23 Marker Search ............581 Keysight N9927-90020 User’s Guide...
  • Page 24 Start Connection Wizard ........... . .602 Keysight N9927-90020 User’s Guide...
  • Page 25 Using Mapping ............648 Keysight N9927-90020 User’s Guide...
  • Page 26 How to move a Marker after it is created ........700 Keysight N9927-90020 User’s Guide...
  • Page 27 How to set Scale ........... . . 726 Keysight N9927-90020 User’s Guide...
  • Page 28 How to setup Startup Mode ..........748 Keysight N9927-90020 User’s Guide...
  • Page 29 LAN Settings............767 Keysight N9927-90020 User’s Guide...
  • Page 30 Edit Keywords ............789 Keysight N9927-90020 User’s Guide...
  • Page 31 Battery Transportation ............815 Keysight N9927-90020 User’s Guide...
  • Page 32 ............... . .858 Keysight N9927-90020 User’s Guide...
  • Page 33 Keysight N9927-90020 User’s Guide...
  • Page 34 Keysight N9927-90020 User’s Guide...

  • Page 35: 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 RF Analyzer N9914A Vector Network Analyzer AND Spectrum RF Analyzer N9915A Vector Network Analyzer AND Spectrum Microwave Analyzer...

  • Page 36: 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 N9927-90020 User’s Guide...

  • Page 37: Fieldfox Manuals, Software, And Supplemental Help

    FieldFox MW VNA/SA Service Guide (keysight.com) — Firmware Updates – Check to see if you have the latest FieldFox firmware. FieldFox Current Firmware (New CPU) | Keysight Conventions that are used in the Manual — Hardkey indicates a front panel button. The functionality of these buttons does not change.

  • Page 38: Safety Notes

    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 N9927-90020 User’s Guide...

  • Page 39: 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 40: Install The Lithium-Ion Battery

    Chapter 33, “Working with the Lithium-Ion Battery”, on page 795. 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 > Battery. Keysight N9927-90020 User’s Guide...

  • Page 41: To Conserve Battery Power

    — 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 N9927-90020 User’s Guide...

  • Page 42: 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 > Service Diagnostics. — Then Internal Temperatures. Keysight N9927-90020 User’s Guide...

  • Page 43: Temperature Control Mode

    For RTSA mode (where duty cycling is not possible), you will see the following messages displayed for ~3 seconds: "Entering Auto Protect mode for thermal management" Later if the temperatures are reduced: "Temperatures reduced, exiting Automatic Protect Mode" Keysight N9927-90020 User’s Guide...

  • Page 44: Exiting Maximum Auto Protect Threshold Temperature Mode

    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 N9927-90020 User’s Guide...

  • Page 45: 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 N9927-90020 User’s Guide...

  • Page 46: Summary Of Fieldfox Average Internal Temperature Protection Behavior

    +23 dBm RF, ±50 VDC Max. (N9923A, N9923AN) +25 dBm RF, ±40 VDC Max. (N995xA/B, N996xA/B) DC Input: 19VDC, 4ADC, 60 Watts maximum when charging battery Learn more about Maximum power and voltages in the FieldFox Data Sheet. Keysight N9927-90020 User’s Guide...
  • Page 47 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 N9927-90020 User’s Guide...

  • Page 48: Take The Fieldfox Tour

    Preparing for Initial Use of Your New FieldFox Take the FieldFox Tour Take the FieldFox Tour Front Panel Keysight N9927-90020 User’s Guide...
  • Page 49 Displays a sub-menu for marker functions “All about Markers” page 700 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 778 Keysight N9927-90020 User’s Guide...
  • Page 50 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 N9927-90020 User’s Guide...

  • Page 51: Top Panel

    N9910X-825. Other GPS antennas can also be used. Ref In SMA (f) connector for use with Frequency Reference Source and External “Frequency Reference Trig In Trigger Input signal. Source” on page 763. “Triggering” on Maximum: 5.5 VDC. page 206 Keysight N9927-90020 User’s Guide...

  • Page 52: Right Side Panel

    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 778 IMPORTANT! It is recommended that only USB certified cables are used with the FieldFox. Keysight N9927-90020 User’s Guide...

  • Page 53: Left Side Panel

    DC Voltage Source for use with external DC Bias. “Variable Voltage Source (Opt. 309)” on page 765 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 797 Keysight N9927-90020 User’s Guide...

  • Page 54: Screen Tour

    Data / Mem Display (CAT and NA) “All about Trace Math” Step / FFT (SA) on page 724 “Resolution Bandwidth (Res BW)” on page 198 Resolution Setting Mode dependent Measurement Start Freq or Distance Mode dependent Keysight N9927-90020 User’s Guide...
  • Page 55 “Date and Time” on page 750 Marker Readout “All about Markers” on page 700 Battery Status “Viewing the Battery Charge Status” on page 795 Measurement Type (CAT and NA) Acquisition Mode dependent Reference Position Mode dependent Keysight N9927-90020 User’s Guide...

  • Page 56: 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 N9927-90020 User’s Guide...

  • Page 57: 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 N9927-90020 User’s Guide...
  • Page 58 Preparing for Initial Use of Your New FieldFox Connector Care Keysight N9927-90020 User’s Guide...

  • Page 59: 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.
  • Page 60 “All about Limit Lines” on page 715 “All about Trace Math” on page 724 Learn more in Making 75Ω (ohm) Measurements in the Supplemental Online Help at: https://www.keysight.com/us/en/lib/resources/service-manuals/keysight -fieldfox-library-help-and-manuals-2153870.html (Keysight FieldFox Library, Help and Manuals – FieldFox Online Supplemental Help). Keysight N9927-90020 User’s Guide...

  • Page 61: Cat Mode Settings

    MINUS the amount of energy that is reflected. The higher the trace is on the screen, the more energy being reflected back to the FieldFox. Learn how to measure Return Loss, see “Return Loss Measurements” on page Keysight N9927-90020 User’s Guide...

  • Page 62: Quick Settings Table

    — Then press Edit. The current setting changes to yellow. — Some settings require you to press a softkey to change the value. Otherwise, use the numeric keypad, arrows, or rotary knob to change the value. Keysight N9927-90020 User’s Guide...

  • Page 63: Frequency Range

    Adjust the Y-axis scale to see the relevant portions of the data trace. The Y-axis is divided into 10 graticules. This setting can be changed at any time without affecting calibration accuracy. How to set Scale — Press Scale / Amptd. Keysight N9927-90020 User’s Guide...

  • Page 64: Averaging

    When the counter reaches the specified count, then a ‘running average’ of the last N sweeps is displayed. Average Count = 1 means there is NO averaging. Keysight N9927-90020 User’s Guide...

  • Page 65: How To Set Trace Averaging

    Use Single to conserve battery power or to allow you to save or analyze a specific measurement trace. This setting can be changed at any time without affecting calibration accuracy. How to set Single or Continuous — Press Sweep 3. Keysight N9927-90020 User’s Guide...

  • Page 66: Resolution (Number Of Data Points)

    The increase will not be exactly the amount that you enter, as the actual sweep time is the composite of many factors. Measurement speed specifications do NOT apply in Temperature Control Mode. Learn more in Chapter 1, “Overview.” Keysight N9927-90020 User’s Guide...

  • Page 67: How To Set Sweep Time

    To achieve a flattened output power, reduce the power level or stop frequency. — Then press Power Level — Then enter a value using the numeric keypad, the arrows, or the rotary knob. — Press Enter. Keysight N9927-90020 User’s Guide...

  • Page 68: Interference Rejection

    — The Return Loss measurement frequency settings are made in the usual manner. Learn how at “Frequency Range” on page 63. When a new Start or Stop frequency is selected, Coupled Frequency is automatically set to OFF. Keysight N9927-90020 User’s Guide...

  • Page 69: Return Loss Measurements

    — The return loss trace is displayed on the FieldFox screen. 1-Port Cable Loss Measurements While all cables have inherent loss, weather and time will deteriorate cables and cause even more energy to be absorbed by the cable. This makes less power available to be transmitted. Keysight N9927-90020 User’s Guide...

  • Page 70: How To Make A 1-Port Cable Loss Measurement

    Steps 10 through 13 can minimize the ripple. Perform the measurement with and without steps 10 through 13 and choose the method with the least amount of ripple. Keysight N9927-90020 User’s Guide...

  • Page 71: 2-Port Insertion Loss Measurements

    2-port Insertion Loss measurements are generally more accurate than 1-port Cable Loss measurements. How to make a 2-port Insertion Loss Measurement — Press Mode then CAT. — Then More then Insertion Loss (2-Port). — Press Freq/Dist and enter Start Stop frequency values of the measurement. Keysight N9927-90020 User’s Guide...
  • Page 72 When measuring very long lengths of cable, it may be necessary to increase the sweep time. Learn how on page 66. Learn how in the Supplemental Online Help at: https://www.keysight.com/us/en/lib/resources/service-manuals/keysight-fi eldfox-library-help-and-manuals-2153870.html (Keysight FieldFox Library, Help and Manuals – FieldFox Online Supplemental Help). Keysight N9927-90020 User’s Guide...
  • Page 73 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 74: Dtf (Distance To Fault) Measurements How To Make Dtf Measurements

    “How to Perform a Calibration” on page 137. 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 N9927-90020 User’s Guide...
  • Page 75 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 N9927-90020 User’s Guide...

  • Page 76: 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 at: https://www.keysight.com/us/en/lib/resources/service-manuals/k Keysight N9927-90020 User’s Guide...

  • Page 77: Dtf Start And Stop Distance

    Freq Mode 2. 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 N9927-90020 User’s Guide...

  • Page 78: 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 N9927-90020 User’s Guide...

  • Page 79: 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 N9927-90020 User’s Guide...

  • Page 80: How To Edit A Cable File

    “How the Freq/Loss pairs are applied” on page 81 below. 5. 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, — Delete/Clear then: Keysight N9927-90020 User’s Guide...

  • Page 81: How To Save Or Recall A Cable

    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 N9927-90020 User’s Guide...

  • Page 82: Window Settings

    (Default setting) — Medium – Compromise between Minimum and Maximum window settings. — Minimum – Best Response Resolution, providing the ability to resolve between two closely-spaced responses. 5. Then press Done Edit. 6. Again press Done. Keysight N9927-90020 User’s Guide...

  • Page 83: 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 N9927-90020 User’s Guide...
  • Page 84 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 N9927-90020 User’s Guide...
  • Page 85 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 86 “How to Perform a Calibration” on page 137. 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 N9927-90020 User’s Guide...

  • Page 87: Tdr (Time Domain Reflectometry) - Option 215

    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 96 Keysight N9927-90020 User’s Guide...

  • Page 88: 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 N9927-90020 User’s Guide...

  • Page 89: 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 N9927-90020 User’s Guide...

  • Page 90: 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 N9927-90020 User’s Guide...

  • Page 91: 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 N9927-90020 User’s Guide...
  • Page 92 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 N9927-90020 User’s Guide...

  • Page 93: How To Save Or Recall A Cable

    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 N9927-90020 User’s Guide...

  • Page 94: 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 N9927-90020 User’s Guide...

  • Page 95: Network Analyzer Windows Frequency Span And Tdr Window Selection For Step Rise Time (Approximated)

    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 N9927-90020 User’s Guide...

  • Page 96: 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 N9927-90020 User’s Guide...

  • Page 97: 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 N9927-90020 User’s Guide...
  • Page 98 TDR (Time Domain Reflectometry) - Option 215 TDR Measurement Settings Keysight N9927-90020 User’s Guide...

  • Page 99: Na (Network Analyzer) Mode

    Keysight Handheld Analyzers N99xxA User’s Guide NA (Network Analyzer) Mode Learn more about NA Mode measurements in the FieldFox Supplemental Online Help: https://www.keysight.com/us/en/lib/resources/service-manuals/keysight-fi eldfox-library-help-and-manuals-2153870.html (Keysight FieldFox Library, Help and Manuals – FieldFox Online Supplemental Help). In this Chapter “About S-parameters” on page 101 “Mixed-Mode S-Parameters”...
  • Page 100 “All about Limit Lines” on page 715 “All about Trace Math” on page 724 Learn how to make 75Ω (ohm) Measurements in the Supplemental Online Help: https://www.keysight.com/us/en/lib/resources/servic e-manuals/keysight-fieldfox-library-help-and-manua ls-2153870.html (Keysight FieldFox Library, Help and Manuals – FieldFox Online Supplemental Help). Keysight N9927-90020 User’s Guide...

  • Page 101: 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 N9927-90020 User’s Guide...

  • Page 102: How To Measure 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 N9927-90020 User’s Guide...

  • Page 103: How To Make Mixed-Mode S-Parameter Measurements

    (Y). Then choose from the following for either: ——Auto The displayed S-parameter is converted to the appropriate Z or Y parameter: Refl for S11 and S22; Trans for S21 and S12. When the S-parameter is changed, the appropriate conversion changes automatically. Keysight N9927-90020 User’s Guide...

  • Page 104: Receiver Measurements

    — Port 2 Select when measuring reverse transmission at A receiver. Learn more about Raw Receiver Measurements at the FieldFox Supplemental Online Help: https://www.keysight.com/us/en/lib/resources/service-manuals/keysight-fi eldfox-library-help-and-manuals-2153870.html (Keysight FieldFox Library, Help and Manuals – FieldFox Online Supplemental Help). Keysight N9927-90020 User’s Guide...

  • Page 105: 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 703. Keysight N9927-90020 User’s Guide...

  • Page 106: How To Select A Multi-Trace Configuration

    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 N9927-90020 User’s Guide...

  • Page 107: Calibration Settings

    Nearest (NA Mode Only)” on page 157. 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 N9927-90020 User’s Guide...

  • Page 108: Format

    ——Learn more about Group Delay measurements at the FieldFox Supplemental Online Help: https://www.keysight.com/us/en/lib/resources/service-man uals/keysight-fieldfox-library-help-and-manuals-2153870.ht — Real Displays only the real (resistive) portion of the measured complex data. The Y-axis is Unitless. Often used for Time Domain measurements. Keysight N9927-90020 User’s Guide...

  • Page 109: 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 N9927-90020 User’s Guide...

  • Page 110: Magnitude Offset

    Real (unitless), the conversion from dB is performed and the correct amount of offset is implemented. The Magnitude offset setting affects only the active trace. How to set Magnitude Offset 1. Press Scale / Amptd 2. Then More Keysight N9927-90020 User’s Guide...

  • Page 111: 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 N9927-90020 User’s Guide...

  • Page 112: Averaging

    On subsequent sweeps, averaging restarts by measuring each data point again <n> times. The average counter is not updated because data is not displayed until all the averages have been applied. Keysight N9927-90020 User’s Guide...

  • Page 113: If Bandwidth

    This setting determines whether the FieldFox sweeps continuously or only once each time the Single button is pressed. Use Single to conserve battery power or to allow you to save or analyze a specific measurement trace. Keysight N9927-90020 User’s Guide...

  • Page 114: How To Set Single Or Continuous

    The fastest possible sweep time is always used as the default setting. Use the Min Swp Time setting to slow the sweep time when measuring long lengths of cable. Learn more at the FieldFox Supplemental Online Help: https://www.keysight.com/us/en/lib/resources/service-manuals/keysight-fi eldfox-library-help-and-manuals-2153870.html. Keysight N9927-90020 User’s Guide...

  • Page 115: Triggering (Na)

    — A sweep can NOT be initiated by an external signal while a sweep is in progress. — A sweep can NOT be initiated by an external signal when in HOLD mode. Learn more about HOLD mode in. Keysight N9927-90020 User’s Guide...
  • Page 116 — If the FieldFox is in a state requiring two sweeps and the user selects point mode triggering, an error "Error: Point trigger not compatible with 2-port cal." will be displayed and point mode trigger will revert to Internal trigger. Keysight N9927-90020 User’s Guide...

  • Page 117: Output Power

    FLAT across the displayed FieldFox frequency span. If flattened power can NOT be achieved, a warning message and beep occurs. To achieve a flattened output power, reduce the power level or stop frequency. a. Then press Power Level Keysight N9927-90020 User’s Guide...

  • Page 118: System Impedance (Z0)

    — With S21 and S12 transmission measurements, the port 1 and port 2 extensions are added together. This accounts for the total transmission delay going through ports 1 and 2. Port extensions and Electrical Delay differ in the following ways: Keysight N9927-90020 User’s Guide...

  • Page 119: How To Apply Port Extensions

    VF = 1.0 (default setting) corresponds to wave propagation through free space (a vacuum). How to set Velocity Factor 1. Press Meas Setup 4 > Port Extensions > Velocity Factor 2. Then enter a value between 0.1 and 1 using the numeric keypad, then press Enter. Keysight N9927-90020 User’s Guide...

  • Page 120: Big Marker Display States (A And B)

    — Big Readout - For each marker readout (1, 2, and 3), select from the following: — Marker # - Enter a number from 1 to 6 to create the marker. 1 is created by default. Keysight N9927-90020 User’s Guide...
  • Page 121 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 N9927-90020 User’s Guide...

  • Page 122: 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 N9927-90020 User’s Guide...
  • Page 123 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 124 Time Domain – Option 010 Gating Settings “Start, Stop, Center, and Span Gate Times” on page 133 “Gating Type” on page 133 Keysight N9927-90020 User’s Guide...

  • Page 125: Overview

    “Gating” on page 132. 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 https://www.keysight.com/us/en/assets/7018-01451/application-notes/598 9-5723.pdf. Keysight N9927-90020 User’s Guide...

  • Page 126: 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 N9927-90020 User’s Guide...

  • Page 127: Stimulus (Mode)

    How to set Start and Stop time — Press Measure Setup 4 — Then Transform — Then Transform Start Stop Keysight N9927-90020 User’s Guide...

  • Page 128: 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 N9927-90020 User’s Guide...

  • Page 129: How To Make Window Setting

    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 N9927-90020 User’s Guide...

  • Page 130: About Velocity Factor And Line Loss

    — 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 131: 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 N9927-90020 User’s Guide...

  • Page 132: 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 N9927-90020 User’s Guide...

  • Page 133: 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 N9927-90020 User’s Guide...

  • Page 134: Gating Shape

    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 N9927-90020 User’s Guide...

  • Page 135: 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 136: 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 N9927-90020 User’s Guide...

  • Page 137: 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 N9927-90020 User’s Guide...
  • Page 138 The OFF state reverts to CalReady. — View Cal – Shows the properties of the current calibration. Learn more in “View Cal” on page 149. — More – Learn about Cal Ready Properties in “CalReady” on page 137. Keysight N9927-90020 User’s Guide...

  • Page 139: Quickcal (N991Xa/2Xa/3Xa Only)

    — QuickCal cannot be used with waveguides, or if the test fixture or test setup (before DUT) includes an attenuator. How to perform a QuickCal — In CAT, NA, or VVM Mode, press Cal 5 — Then QuickCal Keysight N9927-90020 User’s Guide...
  • Page 140 DUT will be displayed in the measurement results. These should be high-quality components! — Do NOT connect anything at the cal reference plane where the DUT connects. — Press Measure Keysight N9927-90020 User’s Guide...

  • Page 141: Mechanical Cal

    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 Keysight N9927-90020 User’s Guide...
  • Page 142 Calibration for NA, CAT, and VVM Modes and Kits for Keysight Vector Network Analyzers,” available online at https://www.keysight.com/us/en/assets/7018-01375/application-notes/598 9-4840.pdf. Visit www.keysight.com/find/fieldfoxsupport to see a complete list of supported Cal Kits. Also at this website, download Data-Link software that allows you to edit Cal Kit definitions or add a new Cal Kit.
  • Page 143 Learn more about Cal Types in “Calibration Type” on page 149. To select a different Cal Type: — Press Change Cal Type. — Then using the arrows or rotary knob, select a Cal Type, — Then press Select and Finish. Keysight N9927-90020 User’s Guide...

  • Page 144: Ecal

    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. 2. Follow the Cal Wizard prompts. Connect the specified standard at the point where the DUT will be connected, then press Measure.
  • Page 145 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 146 If the frequency is adjusted outside of the set of points calibrated the error correction is turned off and the following message is displayed: "Error correction disabled. Stimulus outside calibrated range." Keysight N9927-90020 User’s Guide...

  • Page 147: Simple Response Cals

    You can perform a Simple Response Cal for either: S11, or S22, or S21 AND S12. When prompted, choose a standard based on the displayed measurements to be calibrated. For example, to calibrate S11, connect either an OPEN or SHORT to the port 1 reference plane. Keysight N9927-90020 User’s Guide...
  • Page 148 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 N9927-90020 User’s Guide...

  • Page 149: 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 N9927-90020 User’s Guide...
  • Page 150 1-Port (OSL) DUT: No restrictions 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 Keysight N9927-90020 User’s Guide...
  • Page 151 Standards: Thru, Reflect, Line or variations of these. A TRL Cal Kit MUST be selected to see this Cal Type Sweeps in BOTH directions. Learn more about TRL Calibration in the Supplemental Online Help: https://www.keysight.com/us/en/lib/resources/service-manuals/keysigh t-fieldfox-library-help-and-manuals-2153870.html Keysight N9927-90020 User’s Guide...

  • Page 152: Isolation Step

    (default) Omits the Isolation step 4. Then <Back 5. Configure and perform the calibration as usual. At the first step of the Cal you will be prompted to connect a Load standard to one or both test ports. Keysight N9927-90020 User’s Guide...

  • Page 153: Waveguide Calibrations

    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 154: Enhanced Response Optimization

    CalReady, this setting optimizes the calibration based on the type of DUT being measured. See also: CalReady Properties in “CalReady” on page 137. This setting does NOT survive Preset. 1. Press Cal 5 > More Enh.Response > 2. Then choose from: Keysight N9927-90020 User’s Guide...

  • Page 155: Interpolation

    (1-port or 2-port). To apply a Cal that was performed in a different mode, press Cal 5 then select User Cal Keysight N9927-90020 User’s Guide...

  • Page 156: Save The Calibration

    Data & Memory. 5. Press Cal 5 > More 6. Select a CalReady Cal to compare with the current setting. 7. Press Esc to exit the cal menu. 8. View the differences in the two traces. Keysight N9927-90020 User’s Guide...

  • Page 157: Apply Nearest (Na Mode Only)

    — Higher than 30 dB indicates that you should recalibrate. Verifying Phase Accuracy — Connect a LOAD standard at the calibration reference plane (where calibration standards were connected). — In NA Mode, select a S11 Reflection with Polar or Smith Chart format. Keysight N9927-90020 User’s Guide...

  • Page 158: Test The Jumper Cable

    — 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 N9927-90020 User’s Guide...

  • Page 159: 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 N9927-90020 User’s Guide...
  • Page 160 Calibration for NA, CAT, and VVM Modes Calibration Method Summary Keysight N9927-90020 User’s Guide...

  • Page 161: Sa (Spectrum Analyzer) Mode (Option 233-Mixed Analyzers)

    Keysight Handheld Analyzers N99xxA User’s Guide SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) To better reflect the enhancements implemented during the alignment process, for firmware versions > A.10.15 “IF Flatness Alignment” is now referred to as “Channel Equalization” or “Channel Equalization Alignment”...
  • Page 162 “Very Long Sweep Times” on page 204 “Zero Span Measurements” on page 204 “Triggering” on page 206 “FFT Gating (Opt 238)” on page 210 “Single / Continuous / Restart” on page 212 “Points” on page 212 Keysight N9927-90020 User’s Guide...
  • Page 163 “Spectrum Emission Mask (SEM) — (Requires CPU2, SA Mode Only)” on page 251 “IQ Analysis (Requires Option 351 IQ Analyzer and Option 353 IQ Streaming, SA Mode Only)” on page 258 “Effective Isotropic Radiated Power (EIRP) – (Requires CPU2, SA Mode Only)” on page 261 Keysight N9927-90020 User’s Guide...
  • Page 164 “Spectrogram Display (SA Option)” on page 516 “Waterfall Display” on page 519 “Record/Playback (SA Option)” on page 520 Optional Settings: “All about Markers” on page 700 “All about Limit Lines” on page 715 “Saving and Recalling Files” on page 778 Keysight N9927-90020 User’s Guide...

  • Page 165: Sa Mode Settings

    The FieldFox can be used with an OML frequency extender. Refer to “Utilities” on page 736, the A Series FieldFox Configuration Guide 5990-9836EN, and to “Contacting Keysight” on page Available ONLY with Opt. 209 and while in Step sweep, SA mode allows reverse sweeps.

  • Page 166: Two More Ways To Change The Frequency Range

    Selects the entire frequency span of the FieldFox. The Center frequency is set automatically. How to change frequency step size When using the arrows to change any of the frequency settings, the size of the frequency step can be changed. Keysight N9927-90020 User’s Guide...

  • Page 167: How To Change From Linear To Log Axis View

    Integration BW. Learn more about Radio Standards and Channel Measurements in “Radio Standards and Channel Measurements” on page 229. How to select a Radio Standard — Press Measure 1 OR Freq/Dist then More — Then Radio Standard — Then Radio Standard Keysight N9927-90020 User’s Guide...

  • Page 168: Custom Radio Standards

    After a Radio Standard has been selected, the frequency range can be changed by selecting channel numbers rather than frequency. Once enabled, the channel number is appended to the X-axis frequency range. How to Enable Channel selection — Press Freq/Dist Keysight N9927-90020 User’s Guide...

  • Page 169: How To Change The Channel Number Of The Measurement

    Press Freq/Dist then More. Press Chan Direction to toggle between Uplink and Downlink. If either of these selections is not available, then the selected Radio Standard does not contain those frequencies. In that case, Chan Direction is grayed out. Keysight N9927-90020 User’s Guide...

  • Page 170: Channel Number X-Axis Annotation

    Start and Stop frequencies to swap. The Start becomes the Stop and vice versa. Learn more about Step versus FFT sweeps in “FFT Gating (Opt 238)” on page 210. — Press Freq/Dist then More. — Then Reverse Swap Keysight N9927-90020 User’s Guide...

  • Page 171: Scale And Units

    External Gain Refer to “External Gain” on page 172. — 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 N9927-90020 User’s Guide...

  • Page 172: How To Set Y-Axis Units

    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 N9927-90020 User’s Guide...

  • Page 173: How To Set Attenuation

    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 #Atten xx dB is shown at the top of the screen. (#) means manual setting. Keysight N9927-90020 User’s Guide...

  • Page 174: Preamplifier Control (Opt 235)

    This indicates that the signal is in the linear region of the FieldFox receiver. — If the signal level DOES increase, then the receiver was compressed. Set the RF Attenuation value at the setting when further increases no longer result in an increase in the displayed power level. Keysight N9927-90020 User’s Guide...

  • Page 175: Field Strength Measurements

    Use Auto and Disabled correction for all settings. (Default = Auto). — Antenna Off – Opens a softkey menu to enable/disable a antenna and edit, save, create a new antenna factors table, recall, and set a storage device location. Keysight N9927-90020 User’s Guide...

  • Page 176: Selecting And Viewing Corrections

    Turn correction ON or OFF for this Antenna/Cable. — Edit Antenna/Cable Edit an Antenna/Cable Correction table. See Using the Antenna/Cable Editor (below) for more information. — Create a new Antenna/Cable. See Using the Antenna/Cable Editor (below) for more information. Keysight N9927-90020 User’s Guide...

  • Page 177: Using The Antenna/Cable Editor

    FieldFox knows how to convert the measurement data to various Field Strength Amplitude units. 1. Press Scale/Amptd > More Corrections > 2. Then Edit Antenna Edit Cable to open the Antenna / Cable Editor. Keysight N9927-90020 User’s Guide...
  • Page 178 — When two or more Freq/Value pairs are entered, the data points between the lowest and highest frequencies are corrected. Linear interpolation is applied between frequencies when necessary. 5. Optionally choose from the following: Keysight N9927-90020 User’s Guide...
  • Page 179 Storage Device. — Storage Device Changes the device used to save or recall files. Choose from Internal (default setting), USB (must be connected) or SD card. This is a different setting from the Save/Recall Storage Device setting. Keysight N9927-90020 User’s Guide...

  • Page 180: Source Tracking Offset And Offset Reversal

    — The FieldFox can also read *.ANT (Antenna) files that were created from older Keysight Spectrum Analyzers. — Cable and Antenna (*.csv or *.ANT) files canNOT be edited in Data Link software.

  • Page 181: Tune & Listen (Am/Fm)

    The Tune & Listen measurement alternates between normal SA sweeps for the display and performing audio demodulation at the Tune Frequency. See the Listen Time setting for more information. Figure 9-3 Tune & Listen ON Keysight N9927-90020 User’s Guide...

  • Page 182: How To Select Tune & Listen

    – Sets the modulation type to AM lower side band. Annotation: AM LSB @ Center Frequency displayed at the top of display. See also, “TnL AM SSB Gain”. See also, “How to select Analog Demod (Metrics)” on page 187. Keysight N9927-90020 User’s Guide...

  • Page 183: Tnl Am Ssb Gain

    Tune Frequency to that of the marker. To improve sound quality, try increasing power by reducing the Attenuation setting and, if available, turn ON the Preamplifier. Learn how “Attenuation Control” on page 172 Keysight N9927-90020 User’s Guide...

  • Page 184: Listen Time

    AM or FM Metric demodulated signal’s marker precision (.1 Hz, 1 Hz, 10 Hz; default = 0.1 Hz). The Counter Precision softkey is not available when AM Metric or FM Metric are enabled. See also, “Setting the Mkr->TuneFreq Softkey” on page 185. Keysight N9927-90020 User’s Guide...

  • Page 185: Setting The Mkr->Tunefreq Softkey

    This enables you to listen and display a carrier frequency and it’s harmonics. The Analog Demod measurement displays a normal SA sweeps for the display while performing audio demodulation at the carrier Frequency. See the “How to select Analog Demod (Metrics)” on page 187 setting for more information. Keysight N9927-90020 User’s Guide...
  • Page 186 “Setting the Alternate Frequency (AF) RBW Softkey” on page 189 “Setting the Audio Capture Playback Softkeys” on page 190 “How to Set the Demod Filters” on page 191 “Setting the Marker Counter Gate Softkey” on page 193 Keysight N9927-90020 User’s Guide...

  • Page 187: How To Select Analog Demod (Metrics)

    30 to 50 seconds long. The message reads: "Warning: Slow Measurement. RDS Measurement in Progress." — Displayed values for PM Modulation Metrics (i.e., includes PM Deviation, PM Demod Waveform, SINAD, THD, Carrier Power, Carrier Freq, Modulation Rate). Keysight N9927-90020 User’s Guide...

  • Page 188: How To Make Analog Demodulation (Metrics) Settings

    For example, in FM peak ON will include peak positive (Peak +) and negative (Peak -) frequency deviation metrics to appear. Peak ON will also enable peak traces on the demodulation waveform and audio frequency spectrum (Default = OFF). Keysight N9927-90020 User’s Guide...

  • Page 189: Setting The Alternate Frequency (Af) Freq/Dist Softkeys

    Demod View = Freq, you can choose from the following: — Press BW 2 then choose: — AF RBW – Sets the audio frequency (AF) resolution BW for the AM or FM demodulated signal (Manual or Auto; default = Auto). Keysight N9927-90020 User’s Guide...

  • Page 190: Setting The Audio Capture Playback Softkeys

    – When Demod Type = FM Stereo / RDS, this softkey sets the type of audio to be captured and stored: (Choose single channel: Mono (L+R), Left (L), Right (R), and Difference (L–R). Or choose two channel: Stereo (L&R). Default = Mono (L+R). Keysight N9927-90020 User’s Guide...

  • Page 191: How To Set The Demod Filters

    5-Pole Butterworth LPF with 3 dB cutoff frequency 300 Hz of 300 Hz. 5-Pole Butterworth LPF with 3 dB cutoff frequency 3 kHz of 3 kHz. 5-Pole Butterworth LPF with 3 dB cutoff frequency 15 kHz of 15 kHz. Keysight N9927-90020 User’s Guide...
  • Page 192 (Default = 500 Hz; Minimum = 20 Hz, Maximum = Varies, depending on the AF Span). — Bandpass Filter None – Sets the Bandpass Filter for the current measurement (Choices: None, CCITT, A-Weighted, C-Weighted, C-Message, CCIR-1k Weighted, CCIR-2k Weighted, or CCIR Unweighted). Default = None. Keysight N9927-90020 User’s Guide...

  • Page 193: Setting The Marker Counter Gate Softkey

    (narrow) Tune & Listen, or FM (wide) Tune & Listen are enabled. Refer to Figure 9-8 on page 195. See also, “How to use Marker Functions” on page 713. Figure 9-5 AM DSB (Metrics) – Demodulation Waveform Keysight N9927-90020 User’s Guide...
  • Page 194 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Figure 9-6 FM Metrics – Demodulation Spectrum Figure 9-7 FM (Metrics) – Demodulation Waveform Keysight N9927-90020 User’s Guide...
  • Page 195 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Figure 9-8 FM (Metrics) - Counter Gate and FM Demodulation Waveform Keysight N9927-90020 User’s Guide...
  • Page 196 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) SA Mode Settings Figure 9-9 Audio Capture with Annotation Examples Keysight N9927-90020 User’s Guide...

  • Page 197: Independent Source/Tracking Generator

    With Source Enable ON and Source Mode = Tracking, Normalize ON stores the current measurement trace into Trace 4 in View state as a reference trace. All subsequent trace measurements subtract this Trace 4 reference trace, and therefore become relative to it. SrcN Keysight N9927-90020 User’s Guide...

  • Page 198: Resolution Bandwidth (Res Bw)

    Res BW is narrowed, the sweep speed becomes slower. See “Very Long Sweep Times” on page 204. How to set Res BW 1. Press BW 2 > 2. Then choose from the following: 1. N995xA/6xA cannot have the Leveled value set lower than –35 dBm. Keysight N9927-90020 User’s Guide...

  • Page 199: Video Bandwidth (Video Bw)

    Enter. Setting VBW higher than RBW may smooth the trace. To change this setting from Man to Auto, press Video BW twice. The current Video BW setting is shown at the bottom of the screen. # VBW x.xx XHz (#) means manual setting. Keysight N9927-90020 User’s Guide...

  • Page 200: Af Rbw (Audio-Frequency Resolution Bw)

    FieldFox screen. For a more comprehensive tutorial, see Spectrum Analysis Basics (App Note 150) at https://www.keysight.com/us/en/assets/7018-06714/application-notes/595 2-0292.pdf How to set Sweep Type 1. Press BW 2 > Advanced > Sweep Type 2. Then choose from the following: Keysight N9927-90020 User’s Guide...

  • Page 201: Oversweep

    Learn more “Individual Alignments” on page 219. See also, Figure 9-10 on page 202. Learn more about the IF Output frequencies and bandwidths in the Supplemental Online Help: https://edadocs.software.keysight.com/kkbopen/fieldfox-manuals-firmware -software-and-product-support-589310103.html (via FieldFox Manuals, Firmware, Software and Product Support). Keysight N9927-90020 User’s Guide...

  • Page 202: Sweep Acquisition

    Available only in non-zero span measurements, when Sweep Acquisition is set to Auto, the fastest sweep rate is achieved while maintaining full amplitude accuracy. For zero span measurements, refer to “Zero Span Measurements” on page 204. Keysight N9927-90020 User’s Guide...

  • Page 203: How To Set Sweep Acquisition

    Auto Sweep is set to the fastest sweep possible with the current settings. — Enter a relative acquisition value between 1 and 5000, where: — Man Enter a relative acquisition value between 1 and 5000, where: Keysight N9927-90020 User’s Guide...

  • Page 204: 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. For non-zero span measurements, refer to “Sweep Acquisition” on page 202. Keysight N9927-90020 User’s Guide...

  • Page 205: How To Set Zero Span

    N991xA/2xA/3xA models and 6000 seconds for N995xA & N996xA models. — Then select a multiplier key. Learn more in “Multiplier Abbreviations” on page Previous FieldFox versions limited the sweep time / ResBW settings. This restriction is no longer necessary with release A.06.25. Keysight N9927-90020 User’s Guide...

  • Page 206: Triggering

    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 N9927-90020 User’s Guide...

  • Page 207: Sync

    To see the rising edge of a repetitive signal which is triggered on that edge, enter a negative trigger delay value (also known as pre-trigger). Adjust the sweep time to observe the pre-trigger time if necessary. 1. Press Sweep 3 > Trigger Settings Trig Delay > Keysight N9927-90020 User’s Guide...

  • Page 208: Period

    Therefore, you may need to set the trigger level higher than the displayed level. 1. Press Sweep 3 > Trigger Settings Trig Level > 2. Enter a value using the numeric keypad, the arrows, or the rotary knob. Keysight N9927-90020 User’s Guide...

  • Page 209: Auto Trigger Time

    — 0: T-zero occurs at the left graticule. — 5: T-zero occurs at the center of the screen. — 10: T-zero occurs at the far right graticule. — Then press Enter. Keysight N9927-90020 User’s Guide...

  • Page 210: Trigger Settings Annotation

    For best results, Auto Trigger should be used with this feature to ensure that the sweep does not wait indefinitely for a trigger. Set Auto Trigger to a time that is longer than the expected periodic rate of the signal. This is especially Keysight N9927-90020 User’s Guide...

  • Page 211: How To Set Fft Gating

    When you have properly setup the Gate Trigger, Width, and Delay using the Gate View measurement, you can turn Gate View OFF to return to the full screen non-zero span measurement with FFT Gating ON, the RBW set, and the Trigger settings active. Keysight N9927-90020 User’s Guide...

  • Page 212: Single / Continuous / Restart

    In SA Mode you can display up to four of the following types of trace states. All SA settings are applied to all displayed traces. See also “Marker Trace (IQA and SA Mode)” on page 704. Keysight N9927-90020 User’s Guide...

  • Page 213: How To Display The Trace States

    In SA Mode, there are four different processes in which Averaging is performed: — Average Traces – Learn more in “Averaging” on page 229. — Detection Method Averaging – Learn more in “Detection Method” on page 222. Keysight N9927-90020 User’s Guide...

  • Page 214: How To Set 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. How to set Average Count 1. Press Meas Setup 4 > Average Count Keysight N9927-90020 User’s Guide...

  • Page 215: 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 — RF Burst Amplitude Alignment — Channel Equalization Keysight N9927-90020 User’s Guide...
  • Page 216 — InstAlign Amplitude Alignment Default settings and recommended use model for many applications: — Coupled individual alignments — Coupled state is Auto — Individual alignments are not accessible via front panel soft-keys — Individual alignments cannot be UnCoupled Keysight N9927-90020 User’s Guide...
  • Page 217 All Alignment soft-key sub-menus — when the individual alignments are UnCoupled, they will be coupled when using the All Alignment soft-key sub-menus and their state will be simultaneously changed accordingly Keysight N9927-90020 User’s Guide...

  • Page 218: All Alignment And Align All Now

    (i.e., you may want to do this, for example, if you are analyzing the amplitude stability of a signal). Refer to the SA Individual Alignment Control setting in “Preferences” on page 744, in Chapter 30 System Settings. See also, “Individual Alignments”. Keysight N9927-90020 User’s Guide...

  • Page 219: Individual Alignments

    SA, IQA, RTSA, and other modes use a proprietary amplitude alignment algorithm to make extremely accurate amplitude measurements over the full frequency range of the FieldFox. These settings do NOT survive a Preset or Mode Preset. Keysight N9927-90020 User’s Guide...

  • Page 220: Rf Burst Amplitude Alignment

    Burst triggering. Learn more about RF Burst triggering in “Triggering” on page 206. When enabled (by default) the FieldFox performs an alignment process using the internal RF source. Although some sweeps are delayed, measurement results are never disturbed. Keysight N9927-90020 User’s Guide...
  • Page 221 When alignments need updating, you will see a “Channel Equalization” or “ChanEq” error message displayed. IQA and RTSA modes use proprietary channel equalization algorithms to make extremely accurate channel measurements over the full frequency range of the FieldFox. Keysight N9927-90020 User’s Guide...

  • Page 222: 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 N9927-90020 User’s Guide...

  • Page 223: How To Set Detection Method

    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 N9927-90020 User’s Guide...

  • Page 224: Display Line

    2. 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. Learn more, “All about Limit Lines” on page 715. Keysight N9927-90020 User’s Guide...

  • Page 225: Noise Marker

    If the Detection method and Averaging type are set to Auto when you enable a Band/Interval Power marker, the Detection method will change to Average (RMS) and Averaging type will change to Power average. Other Detection Keysight N9927-90020 User’s Guide...

  • Page 226: How To Measure Band/Interval Power With A Marker

    When Freq Counter is ON, measurement sweeps are considerably slower. How to use Frequency Counter 1. Press Marker. 2. Press Normal, Delta, or Peak, or select an existing marker to use as a frequency counter. Keysight N9927-90020 User’s Guide...

  • Page 227: Time Zero Fixed Marker

    Audio Beep. A marker will be created if one does not already exist. 3. Then More Marker Function Audio Beep ON OFF > > Audio Beep does NOT beep when the FieldFox is in Hold mode. Keysight N9927-90020 User’s Guide...

  • Page 228: 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 161. Keysight N9927-90020 User’s Guide...

  • Page 229: 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 N9927-90020 User’s Guide...

  • Page 230: 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 N9927-90020 User’s Guide...

  • Page 231: How To Select Channel Power

    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 N9927-90020 User’s Guide...

  • Page 232: Other Channel Power Settings

    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 N9927-90020 User’s Guide...
  • Page 233 Radio Standard in conjunction with channel numbers. Learn how to select a Radio Standard and channels in “Channel Selection” on page 168. 1. Press Freq/Dist > Freq Span 2. Enter a value using the numeric keypad, arrows, or the rotary knob. Keysight N9927-90020 User’s Guide...

  • Page 234: Adjacent Channel Power Ratio (Acpr)

    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 N9927-90020 User’s Guide...
  • Page 235 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 N9927-90020 User’s Guide...
  • Page 236 You can set a unique threshold power for each of the offsets that will cause a FAIL indication (RED bar). This occurs when the calculated dBc power (on top of the offset bar) is ABOVE the specified level. To set limits, with an ACPR measurement on the screen: Keysight N9927-90020 User’s Guide...
  • Page 237 ResBW, VideoBW, and sweep (SwpAcquisition) speed. These, and all other SA Mode settings, can be changed manually in a ACPR measurement. — Learn about Measurement Preset in “Measurement Preset” on page 229. — Learn about Averaging in “Averaging” on page 229. Keysight N9927-90020 User’s Guide...

  • Page 238: Rrc Weighting

    RRC Alpha > > [current setting] 2. 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. 3. Press Enter. Keysight N9927-90020 User’s Guide...

  • Page 239: How To Set Up Emf Settings (Requires Emf (Option 358), Gps (Option 307), And Sa Mode (Option 233-Mixed Analyzers))

    If OTA or SA mode does not detect an EMF Option 358 license, then the EMF application and the USB antenna’s axes must be set up manually. This use model is not recommended or supported by Keysight. The USB antenna’s cable loss is not included, in the antenna’s correction factors.

  • Page 240: Emf Features

    EMF uses the following data formats: — Field Strength units: — dBµV/m – For use with E-field signals — dBµA/m – For use with H-field signals — dBG – dB Gauss — dBpT - dB Tesla Keysight N9927-90020 User’s Guide...
  • Page 241 SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers) How to Set Up EMF Settings (Requires EMF (Option 358), GPS (Option 307), and SA Mode (Option 233–Mixed Analyzers)) Figure 9-19 Example of EMF with Triaxial Antenna Keysight N9927-90020 User’s Guide...

  • Page 242: Emf Setup Procedure

    Unable to communicate with antenna. Ensure it is connected. is displayed, verify the USB antenna is connected correctly. See also, “Troubleshooting” on page 454. — Then Antenna Select [Tri Axial] verify Triaxial is selected (Default = Manual). . Keysight N9927-90020 User’s Guide...
  • Page 243 - then choose one of the following: — Default Receiver side only antenna measurements (Default – when no Tri Axial antenna is detected). — Src/Rcvr Split to work with non-triaxial receiver and source side antenna measurements. Keysight N9927-90020 User’s Guide...
  • Page 244 — Recall Cable Recalls the selected cable correction file from the \Cables folder. — Storage Device to select the storage device where your cable correction file is located (Internal/USB/SD Card) ii. Optional: Press More then Keysight N9927-90020 User’s Guide...
  • Page 245 EMF TriAxial [OFF] > Sum All disable/enable the EMF tri-axial measurement (default == OFF). — Press Scale/ Amptd > More > Unit dBm choose units (default == dBm). — Back to exit to the previous softkey menu. Keysight N9927-90020 User’s Guide...

  • Page 246: Editing Antenna Correction Factors And Adding New Antenna Factors

    — Frequency – edits the frequency value measured that corresponds to a particular Antenna Factor. — Antenna Factor – edits the Antenna Factor that corresponds to a particular frequency. Refer to next step for details on editing the antenna Settings table. Keysight N9927-90020 User’s Guide...
  • Page 247 Save Antenna to save your changes. See also “File Saving Naming Options” on page 752 and then to “Alpha Numeric Editing” on page 752. For more information: — See also “GNSS (GPS+) and GPS” on page 758. Keysight N9927-90020 User’s Guide...

  • Page 248: Editing Cable Correction Factors And Adding New Cable Factors

    — Cable Off – to open a softkey menu to edit the cable factors for an antenna setup. 2. For this example, the Cable Off softkey menu has been selected: Keysight N9927-90020 User’s Guide...
  • Page 249 Frequency and Cable Loss (i.e., you must press to deleted the rows or to exit the current softkey menu). — Back – To exit to previous softkey menu. — Press Done when finished editing to exit. Keysight N9927-90020 User’s Guide...
  • Page 250 752. For more information: — See also “GNSS (GPS+) and GPS” on page 758. Figure 9-22 Example: Editing and Adding a New X axis antenna is shown. But, the Cable Loss table is similar. Keysight N9927-90020 User’s Guide...

  • Page 251: Spectrum Emission Mask (Sem) - (Requires Cpu2, Sa Mode Only)

    The following are displayed: — Total Power Ref (dBm / Hz) - measures total power over the specified Integrated BW. Keysight N9927-90020 User’s Guide...
  • Page 252 Spectrum Emission Mask (SEM) — (Requires CPU2, SA Mode Only) — Spectrum Emission Mask Pass/Fail – A PASS indicates the displayed SEM is within the current boundaries specified. A FAIL indicates the current signal fails with the specified parameters. Figure 9-23 SEM Example Keysight N9927-90020 User’s Guide...

  • Page 253: How To Select Spectrum Emission Mask (Sem) Measurement

    Then select one of the following: Measurement Type (Meas Type) enables the user to select the method used to calculate the reference power level. The displayed green power (dBm)/frequency (Hz) text changes as the Meas Type is toggled. Keysight N9927-90020 User’s Guide...
  • Page 254 (up to eight pairs can be selected). — Ofst Enable Enables/disables the currently selected Frequency Start/Stop Offset values. — Ofst Freq Start Sets the offset frequency start value. (Default/Maximum = Value varies with model and options, Minimum = 0 Hz). Keysight N9927-90020 User’s Guide...
  • Page 255 - Enables/disables the SEM Auto Span. — Freq Span - sets the frequency span of the SEM measurement. — More - optional to set Radio Standard controls. Refer to “Radio Standard” on page 167. 4. Setting the Limit Lines Keysight N9927-90020 User’s Guide...
  • Page 256 (Meas Type) generates a fail message. — Abs OR Rel - Either Abs or Rel data failure generates a fail message. — Abs AND Rel - Requires a relative and an absolute data failure to generate a fail message. Keysight N9927-90020 User’s Guide...
  • Page 257 - Sets all of the Offset segments (default Auto is Peak, to facilitate finding peak signal energy when comparing against the Limits). See also “Detection Method” on page 222. — Record Playback - Refer to “Record/Playback (SA Option)” on page 520. Keysight N9927-90020 User’s Guide...

  • Page 258: Iq Analysis (Requires Option 351 Iq Analyzer And Option 353 Iq Streaming, Sa Mode Only)

    When IQ Analysis is selected, the following settings are maintained from a previous measurement: Center Frequency, Span, BW, Sample Rate, Preamp ON|OFF, and RF Attenuation. Keysight N9927-90020 User’s Guide...

  • Page 259: How To Setup Iq Analysis General

    3. Configure Center Frequency, Span, Preamp, and RF Attenuation a. Press Freq/Dist > Center > 1 GHz b. Press Freq Span > 1 MHz (default). This forces the Span to be: Span = 1.25 * Span. Keysight N9927-90020 User’s Guide...
  • Page 260 FieldFox Handheld Analyzer SCPI Programming Guide on www.keysight.com. Or via the FieldFox front panel, choose: — Press Meas Setup 4 > IQ Analysis None > Or simply choose: — Press Measure 1 > All Meas Off Keysight N9927-90020 User’s Guide...

  • Page 261: Effective Isotropic Radiated Power (Eirp) - (Requires Cpu2, Sa Mode Only)

    – Enter the margin compensation to remove known self-interference, antenna efficiency, fading and other errors (–100 db to 100 db; default = 0 dB). — Then More and choose from the following: — Restart – Press this softkey to restart an antenna measurement. Keysight N9927-90020 User’s Guide...
  • Page 262 For this example: 2.5 dB — Press Margin Comp 5. Start EIRP: Press Restart 6. When done press: Save Horizontal Save Vertical 7. Optional: To clear the saved horizontal and vertical EIRP values press: Clear H & V Keysight N9927-90020 User’s Guide...

  • Page 263: 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 https://www.keysight.com/us/en/assets/7018-04381/application-notes/599...
  • Page 264 “Spectrogram Display (RTSA Option)” on page 285 “Record/Playback (RTSA Option)” on page 287 See Also Optional Settings: “All about Markers” on page 700 “All about Limit Lines” on page 715 “Saving and Recalling Files” on page 778 Keysight N9927-90020 User’s Guide...

  • Page 265: Rtsa Mode Settings

    The FieldFox can be used with an OML frequency extender. Refer to “Utilities” on page 736, the A Series FieldFox Configuration Guide 5990-9836EN, and to “Contacting Keysight” on page The frequency range of the measurement can be changed using the following methods: —...

  • Page 266: How To Set Frequency Range

    Adjust the Y-axis scale to see the relevant portions of the data trace. The Y-axis is divided into 10 graticules. A acquisition is shown on the screen as a solid horizontal bar that can be placed at any graticule. Keysight N9927-90020 User’s Guide...

  • Page 267: How To Set Scale

    (positive for gain; negative for loss). Values in increments less than 5 dB must be typed using the numeric keypad. Then press Enter ExtGain xx dB is shown at the top of the screen. Keysight N9927-90020 User’s Guide...

  • Page 268: Attenuation Control

    RF Attenuation is set manually. 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. #Atten xx dB is shown at the top of the screen. (#) means manual setting. Keysight N9927-90020 User’s Guide...

  • Page 269: Preamplifier Control (Opt 235)

    FieldFox receiver. —If the signal level DOES increase, then the receiver was compressed. Set the RF Attenuation value at the setting when further increases no longer result in an increase in the displayed power level. Keysight N9927-90020 User’s Guide...

  • Page 270: Spectrum Selection

    The signal is displayed as a real-time spectrum. Use real-time spectrogram to quickly display measurements. Refer to Figure 10-5 on page 273. In all three spectrum measurements, there are four available traces for representation of the real-time spectrum. Keysight N9927-90020 User’s Guide...
  • Page 271 RTSA (Real-Time Spectrum Analyzer) Mode—Option 350 (CPU2 Only) RTSA Mode Settings Figure 10-2 Density Spectrum (Histogram) FM Signal with 1 MHz FM Deviation & 400 Hz FM Rate Keysight N9927-90020 User’s Guide...
  • Page 272 RTSA (Real-Time Spectrum Analyzer) Mode—Option 350 (CPU2 Only) RTSA Mode Settings Figure 10-3 Density Spectrum (Histogram) with 2 Pulses (Blue color indicates pulse that occurs less frequently) Figure 10-4 Spectrogram Keysight N9927-90020 User’s Guide...

  • Page 273: 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. Keysight N9927-90020 User’s Guide...

  • Page 274: Triggering

    Offset value. 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 N9927-90020 User’s Guide...

  • Page 275: Trigger Slope

    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 N9927-90020 User’s Guide...

  • Page 276: Trigger Level

    — 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 N9927-90020 User’s Guide...

  • Page 277: Trigger Hold-Off

    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 744. Keysight N9927-90020 User’s Guide...

  • Page 278: How To Set Single Or Continuous

    (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 N9927-90020 User’s Guide...

  • Page 279: Trace Display States (Rtsa)

    Average Count setting. Learn more in “Average Count” on page 282. —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 N9927-90020 User’s Guide...

  • Page 280: 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 N9927-90020 User’s Guide...

  • Page 281: 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 N9927-90020 User’s Guide...

  • Page 282: Average Count

    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 N9927-90020 User’s Guide...

  • Page 283: How To Create And Move A Display Line

    Learn more about Scale in “Scale and Units” on page 266. Audio Beep can be used with any marker type or function, including Band/Interval Power. Learn more in “Audio” on page 749. How to use Audio Beep 1. Press Marker Keysight N9927-90020 User’s Guide...
  • Page 284 Marker 1 2 3 4 5 6 to toggle Audio Beep through the existing markers. To set FieldFox speaker volume control, press System > Preferences > Preferences > Volume. Learn more in “Audio” on page 749. Keysight N9927-90020 User’s Guide...

  • Page 285: 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 N9927-90020 User’s Guide...

  • Page 286: 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 N9927-90020 User’s Guide...

  • Page 287: 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 294. Keysight N9927-90020 User’s Guide...

  • Page 288: To View And Edit The Maximum Number Of Records

    During playback, the trace and display annotation will reflect the change on the screen. State settings: Refer to Table 10-1 on page 289 for a list of the applicable state settings for the RTSA options. Keysight N9927-90020 User’s Guide...

  • Page 289: During Playback

    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 N9927-90020 User’s Guide...

  • Page 290: Screen Annotation

    — Is Recording or Playback Paused? (mid-left annotation) — Is the Record or Playback Interval set too long? (Configuration settings.) How to Record a Session 1. Press Trace 6 > Record Playback 2. Then either: — New Session Keysight N9927-90020 User’s Guide...

  • Page 291: How To Playback A Session

    — Playback State/Tag Allows you to continue playback from a state tag, or scroll through the state tags. Enter a value between 1 and the total number of state tags using the numeric keypad, arrows, or Keysight N9927-90020 User’s Guide...

  • Page 292: Recording Configuration

    Default is MIN, which is to wait 0 seconds (record traces as fast as possible). Enter a value in seconds between 0 (no delay) and 10,000 seconds - about 3 hrs) using the numeric keypad, arrows, or the rotary knob. Keysight N9927-90020 User’s Guide...

  • Page 293: Record Source

    — Data is ALWAYS played back into the same trace number that was recorded. If four traces were active during the recording, but only one trace was recorded, then during Playback only that one recorded trace is visible. Keysight N9927-90020 User’s Guide...

  • Page 294: Playback Configuration

    Rename Using the FieldFox labeler, change the name of the session. AutoSession (n) is the default name where (n) is the next-available number. Learn more in “How to use the FieldFox labeler ” on page 781. Keysight N9927-90020 User’s Guide...

  • Page 295: Record Playback Example (Rtsa Mode Only)

    4. Press Record let the recorder run for several seconds. 5. Press Stop to end the recording. This session can be played back: For example: — Press Trace 6 — Then Record Playback — Then Play Keysight N9927-90020 User’s Guide...
  • Page 296 RTSA (Real-Time Spectrum Analyzer) Mode—Option 350 (CPU2 Only) Record/Playback (RTSA Option) Keysight N9927-90020 User’s Guide...

  • Page 297: Iq Analyzer (Iqa) - Option 351 (Cpu2 Only)

    IQA mode requires the FieldFox to have SA mode and CPU2 installed. The FieldFox can be used with an OML frequency extender. Refer to “Utilities” on page 736, the A Series FieldFox Configuration Guide 5990-9836EN, and to “Contacting Keysight” on page Figure 11-1 IQ Analyzer (IQA) Display - LTE–TDD signal captured using the FieldFox’s I/Q...
  • Page 298 “Other Features Available” on page 323 — External Gain (SA chapter) – “External Gain” on page 172 — Display lines (SA chapter) –“Display Line” on page 224 “All about Limit Lines” on page 715 — Limit Lines (Data Analysis chapter) – Keysight N9927-90020 User’s Guide...

  • Page 299: See Also

    “Why and When to Calibrate” on page 136 “All about Markers” on page 700 “All about Limit Lines” on page 715 “All about Trace Math” on page 724 Chapter 29, “Data Analysis Features.” Chapter 32, “File Management.” Keysight N9927-90020 User’s Guide...

  • Page 300: 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 N9927-90020 User’s Guide...

  • Page 301: 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 N9927-90020 User’s Guide...

  • Page 302: 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 N9927-90020 User’s Guide...
  • Page 303 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 304 and to Chapter 32, “File Management.” ——Refer to the File Count softkey on page 302. Keysight N9927-90020 User’s Guide...
  • Page 304 175, the saving process stops. If file number 175 has not been saved, it is deleted. But, I/Q data files 1 through 174 that have been saved prior to pressing Stop, are still saved for reference. See also, Chapter 32, “File Management.” Keysight N9927-90020 User’s Guide...

  • Page 305: How To Modify The I/Q Data Measurement Parameters

    Res BW and to Span. Minimum: 8, Maximum: 524,288. Where each FFT length “point” is equal to 1 I and 1 Q point. So, 237 is equal to 237 I and 237 Q points). Keysight N9927-90020 User’s Guide...
  • Page 306 This is a Kaiser-Bessel window whose maximum side-lobe level is -90 dB. K-B (100 dB) This is a Kaiser-Bessel window whose maximum side-lobe level is -100 dB. K-B (110 dB) This is a Kaiser-Bessel window whose maximum side-lobe level is -110 dB. Keysight N9927-90020 User’s Guide...

  • Page 307: Settings

    (Waveform only) Sets the start time of the waveform measurement (default: 0s, minimum: 0s, maximum: dynamic). In Waveform mode Setting the Start and stop time enables you to display a subset of the data on the display in order to speed up the Keysight N9927-90020 User’s Guide...
  • Page 308 ——The maximum time domain display length is 524,288 points. Time Domain Display Length [pts] = {[Sample Rate[pts/s] x (Stop Time[s] - Start Time[s])] + Where: pts = points s = seconds — Trigger Settings Opens the Trigger Settings softkey menu. Keysight N9927-90020 User’s Guide...
  • Page 309 RF burst. This softkey is only active for RF Burst (default: 0 ms, minimum: 0s, maximum: 5 ms). Keysight N9927-90020 User’s Guide...

  • Page 310: Adjusting The Measurement Setup Settings

    Window and Win State softkeys are used to modify layout of view, the Data softkey is used to specify the displayed data results for the current window. Please note only in User Defined measurement are all of the data results from Spectrum measurement and Waveform measurement Keysight N9927-90020 User’s Guide...
  • Page 311 Q vs. Time – Quadrature vs. Time Q vs. I – Quadrature vs. Imaginary RF Envelope Phase vs. Time Unwrapped Phase vs. Time Time Summary – Time Summary result includes the capture time, spectrum analysis time and waveform start/stop time. Keysight N9927-90020 User’s Guide...

  • Page 312: Adjusting The Frequency Settings

    The RF Attenuation value is automatically lowered in 5 dB steps to allow low-level signals to be viewed. The RF Attenuation value is never automatically lowered below 5 dB. How to set Scale/Amptd Keysight N9927-90020 User’s Guide...
  • Page 313 Manually set the position of the reference line. Values must be between 0 (TOP line) and 10 (BOTTOM line). Default position is zero (top) (default: 0, minimum: 0, maximum: 10). — More, then — Unit Sets the display units. Keysight N9927-90020 User’s Guide...

  • Page 314: Preamplifier Control (Opt 235)

    18 to 22 dB. The gain of the preamp is NOT adjustable. The displayed signal level is automatically adjusted for the increase in system gain. How to control the Preamp Keysight N9927-90020 User’s Guide...
  • Page 315 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 N9927-90020 User’s Guide...

  • Page 316: 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 N9927-90020 User’s Guide...

  • Page 317: How To Measure Noise With A 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 N9927-90020 User’s Guide...

  • Page 318: 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 319 1. Press Preset > Mode Preset (Factory) 2. Press Measure 1 > User Defined Keysight N9927-90020 User’s Guide...
  • Page 319 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 N9927-90020 User’s Guide...

  • Page 320: 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 N9927-90020 User’s Guide...

  • Page 321: 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 310. Keysight N9927-90020 User’s Guide...
  • Page 322 Average Count setting. Learn more in “Adjusting the Measurement Setup Settings” on page 310. —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 N9927-90020 User’s Guide...

  • Page 323: Other Features Available

    — Limit Lines - For information on using Limit Lines, refer to “All about Limit Lines” on page 715. — Display Lines - For information on using Limit Lines, refer to the SA chapter’s section, “Display Line” on page 224. Keysight N9927-90020 User’s Guide...
  • Page 324 IQ Analyzer (IQA) – Option 351 (CPU2 Only) Other Features Available Keysight N9927-90020 User’s Guide...
  • Page 325 — Calibrated antenna – radiated emissions testing — Signal generator (e.g., EXG, MXG) — Set of antennas — Set of near field probes (e.g., Keysight N9311X Series of antennas and field probes.) EMI Option 361 measures radiated and conducted emissions. With EMI you...
  • Page 326 “About Electromagnetic Interference (EMI) Measurements” on page 344 “EMI Measurement Features (Option 361)” on page 345 — “How to Set Up Electromagnetic Interference (EMI) Mode Settings” on page 347 “EMI Measurement Mode Setup Procedure” on page 347 — “Glossary (EMI)” on page 348 Keysight N9927-90020 User’s Guide...
  • Page 327 “EMI Measurements” on page 326 “EMI Measurement Features (Option 361)” on page 333 – see “EMI — Measurements” on page 326 “How to Set Up Electromagnetic Interference (EMI) Mode Settings” on page 335 – see “EMI Measurements” on page 326 Keysight N9927-90020 User’s Guide...
  • Page 328 “All about Limit Lines” on page 715 “Saving and Recalling Files” on page 778 Also “Why and When to Calibrate” on page 136 “Using the Antenna/Cable Editor” on page 177 Chapter 30, “System Settings.” (Changing display colors) Chapter 32, “File Management.” Keysight N9927-90020 User’s Guide...

  • Page 329: Using Emi Measurements (Option 361)

    — Frequency range coupled to CISPR bands — Simple Color coded Trace/Detector — Logarithmic frequency axis pair controls — 200 Hz, 9 kHz, 120 kHz 6 dB resolution bandwidths, and 1 MHz impulse bandwidth, auto–coupled to CISPR bands Keysight N9927-90020 User’s Guide...

  • Page 330: Emi Measurements Mode Settings

    The frequency range of the measurement can be changed using the following methods: — Set Center and Span frequencies (Frequency Span varies with instrument model) — Set Start and Stop frequencies — Using Marker > Center Keysight N9927-90020 User’s Guide...

  • Page 331: How To Set Frequency Range And Frequency Context

    AutoSelect (Default) – The FieldFox selects a frequency annotation setting (Center Span or Start Stop). CenterSpan -The center frequency and span are displayed. StartStop - The start and stop frequencies of the frequency span are displayed. Keysight N9927-90020 User’s Guide...

  • Page 332: Scale And Units

    — After using the keypad, select a multiplier key. Learn more in “Multiplier Abbreviations” on page Scale and Units EMI Measurements mode defaults to Scale Type: Log. Learn more, refer to “Scale and Units” on page 171. External Gain Refer to “External Gain” on page 172. Keysight N9927-90020 User’s Guide...

  • Page 333: Attenuation Control

    Span limitations (e.g., If the 9 kHz BW is used in CISPR band E, the hard point limit will cause the Span to be limited far short of the expected 17 GHz full range of CISPR band E). Keysight N9927-90020 User’s Guide...
  • Page 334 APD Dwell Time. Next APD Statistics uses that histogram data to create a set of values to define that probability that the signal power is above a certain level (CCDF == complementary cumulative density function). The graphical axis changes radically, to reveal that Keysight N9927-90020 User’s Guide...

  • Page 335: How To Set A Cispr Band

    C – 30 MHz to 300 MHz (Default) — D – 300 MHz to 1 GHz — E – 1 GHz to 18 GHz Learn more, see “Resolution Bandwidth (Res BW)” on page 338. Figure 12-1 CISPR Band C Example Keysight N9927-90020 User’s Guide...
  • Page 336 Electromagnetic Interference (EMI) Measurements – Option 361 EMI Measurements Mode Settings Figure 12-2 CISPR Band C Zoom Example 1 – Response to Pulse Figure 12-3 CISPR Band C Example 2 – Response to CW Signal Keysight N9927-90020 User’s Guide...
  • Page 337 Electromagnetic Interference (EMI) Measurements – Option 361 EMI Measurements Mode Settings Figure 12-4 APD Statistics Example 1 – Pulse 5µS/1mS Figure 12-5 APD Statistics Example 2 – CW Keysight N9927-90020 User’s Guide...

  • Page 338: Preamplifier Control (Opt 235)

    Exception: When using Fast SA Scan measurement (displayed in the fourth column), then you can control the number of points, similar to SA mode, where the point limit then becomes 20001. Keysight N9927-90020 User’s Guide...

  • Page 339: Single / Continuous / Restart

    – (Active only for Fast SA Scan) Specifies a the number of sweep acquisitions. Press manual to enter a sweep acquisition value. (Default = Auto). Learn more, see Chapter 9 then “Sweep Acquisition” on page 202. Keysight N9927-90020 User’s Guide...

  • Page 340: Points

    Fast SA Scan or APD Statistics. (i.e., APD statistics does not use detection; it uses inputs. Refer to “Measure 1 Hardkey – EMI ’Convenience’ Softkeys” on page 341 “Input – (Trace Input for APD Measurements)” on page 343). Keysight N9927-90020 User’s Guide...

  • Page 341: Measure 1 Hardkey - Emi 'Convenience' Softkeys

    Count” on page 214 Chapter 9, “SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers).” Alignments EMI measurements mode uses amplitude alignment and channel equalization. Learn more, refer to the SA chapter’s “Alignments” on page 215 information on all alignments. Keysight N9927-90020 User’s Guide...

  • Page 342: Detection Method

    [#RMS] Displays the Root Mean Squared (RMS) average power of all the measurements in each bucket. This is the preferred method when making power measurements. The following softkey is available for most CISPR Band choices, but not APD Statistics: Keysight N9927-90020 User’s Guide...

  • Page 343: Input - (Trace Input For Apd Measurements)

    A CCDF curve is a plot of relative power levels versus probability. — Histogram – Displays the power levels detected over the APD Dwell Time. Keysight N9927-90020 User’s Guide...

  • Page 344: About Electromagnetic Interference (Emi) Measurements

    About Electromagnetic Interference (EMI) Measurements EMI mode enables you to make the following types measurements: — Radiated – wireless EMI signals — Conducted emissions from wires or other conducted paths. Some measurement parameters are auto-coupled and are not user-settable. Keysight N9927-90020 User’s Guide...

  • Page 345: Emi Measurement Features (Option 361)

    Learn more, see “How to set the EMI Traces” on page 340. EMI has the following features: EMI Measurement Results: — Amplitude Probability Distribution Statistics (APD) — Histogram — CCDF traces displayed Keysight N9927-90020 User’s Guide...
  • Page 346 — 200 Hz, 9 kHz, 120 kHz 6 dB resolution bandwidths, and 1 MHz impulse bandwidth — Frequency bands can be coupled to CISPR bands — Logarithmic frequency axis Refer to “EMI Measurement Mode Setup Procedure” on page 347. Keysight N9927-90020 User’s Guide...

  • Page 347: How To Set Up Electromagnetic Interference (Emi) Mode Settings

    5. Setting the Log Freq AxisX state for the displayed trace: For this example, press Log Freq AxisX (default). Press to OFF to > change display to linear view. Learn more, see “How to set Frequency Range and Frequency Context” on page 331. Keysight N9927-90020 User’s Guide...

  • Page 348: Glossary (Emi)

    APD statistics’ histogram results. – Histogram Results of the APD statistics measurement and the power levels detected over the APD specified dwell time used to generate a CCDF results. CISPR International Special Committee on Radio Interference Keysight N9927-90020 User’s Guide...
  • Page 349 Keysight Handheld Analyzers N99xxA User’s Guide 13 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 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 350 “About the Auto-Range Feature” on page 397 “Troubleshooting” on page 401 “Glossary (OTA)” on page 402 Also “Why and When to Calibrate” on page 136 Chapter 30, “System Settings.” (Changing display colors) Chapter 32, “File Management.” Keysight N9927-90020 User’s Guide...

  • Page 351: Using Ota (Options 370 - Lte Fdd, 372 - Tdd, 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 and LTE TDD can measure and display multiple cells. 5GTF only has the ability to measure and display a single cell. Keysight N9927-90020 User’s Guide...

  • Page 352: About Over-The-Air (Ota) Measurements

    5 carriers, in any combination of the following: — Table – Cell scan numeric results (for up to 6 cell sites (CCs) including Physical Channel Information (PCI) – (Cell ID), RSRP, RSRQ, RSSI, PSS, SSS, SINR, Freq Err. Keysight N9927-90020 User’s Guide...
  • Page 353 Spectrum (e.g., CC0 or CC2, etcetera). — Strip Chart – Magnitude of selectable cell scan result metric graphed over time Figure 13-1 Example of the LTE FDD with Four Multiple Display Options – (LTE TDD is similar) Keysight N9927-90020 User’s Guide...
  • Page 354 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5GTF Option 377 (CPU2 Only) About Over–the–Air (OTA) Measurements Figure 13-2 LTE FDD Bar Chart – CC Example Figure 13-3 LTE FDD Bar Chart – PCC Example Keysight N9927-90020 User’s Guide...
  • Page 355 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5GTF Option 377 (CPU2 Only) About Over–the–Air (OTA) Measurements Figure 13-4 LTE FDD Bar Chart – Level Example Figure 13-5 Example of the 5GTF with Four Multiple Display Options Keysight N9927-90020 User’s Guide...

  • Page 356: Tf 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 N9927-90020 User’s Guide...
  • Page 357 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5GTF Option 377 (CPU2 Only) About Over–the–Air (OTA) Measurements Figure 13-6 Example of 5GTF Single Carrier and Single Cell Keysight N9927-90020 User’s Guide...

  • Page 358: How To Set Up Over-The-Air (Ota) Mode Settings

    The FieldFox can be used with an OML frequency extender. Refer to “Utilities” on page 736, the A Series FieldFox Configuration Guide 5990-9836EN, and to “Contacting Keysight” on page This section reviews the steps in setting up an OTA measurement. If you are not familiar with this process or would like more information, refer to “How to...
  • Page 359 See also, the Trace hardkey in step 7. — Then Enabled ON (Default is ON) – Enables/disables the CC scan results. If only one CC is selected, the FieldFox will not allow you to disable the scan Keysight N9927-90020 User’s Guide...
  • Page 360 Setup 1 softkey. — Then Back 7. Select Trace 6—choose: — Window 1 2 3 4 — Then Win State OFF ON to ON — Then Display Type — Table — Bar Chart — Spectrum Keysight N9927-90020 User’s Guide...
  • Page 361 “How to Use Data Logging (OTA Options 370, 372, and 377)” on page 392. 9. Optional: Display Type Table – Different softkey menus are displayed for the four different Display Types: Table (default), Bar Chart, Spectrum, and Strip Chart: Keysight N9927-90020 User’s Guide...
  • Page 362 Red Limit to set the power level and color scale for high power channels. — Blue Limit to set the power level and color scale for low power channels. — Others: Scale, Level, etcetera as desired. Keysight N9927-90020 User’s Guide...
  • Page 363 Scale/Amptd Then one of the following: — Red Limit to set the power level and color scale for high power channels. — Blue Limit to set the power level and color scale for low power channels. Keysight N9927-90020 User’s Guide...
  • Page 364 Sync Correlation percentage to be displayed) — Once the table populates, enter the desired frequency error (LTE FDD and LTE TDD) or Sync Correlation (5GTF) threshold for your measurement (LTE FDD: Default = 900 Hz, i.e., if a carrier signal’s Keysight N9927-90020 User’s Guide...
  • Page 365 > ON — Then Interval Type > choose Time or Distance. — Then, if applicable Time Interval enter time interval in seconds. — Then, if applicable Distance Interval enter distance interval in miters. — Then Back Keysight N9927-90020 User’s Guide...
  • Page 366 Temporarily halts recording until pressed again. The incoming trace continues to sweep. Press again to continue recording. — Stop Immediately stops recording and a “Save the Log File” menu opens to rename and save your data log file. Keysight N9927-90020 User’s Guide...
  • Page 367 14. 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 383. Keysight N9927-90020 User’s Guide...
  • Page 368 Example of the LTE FDD Scan Results Table (Five CCs and one cell) – LTE TDD is similar 1. When multiple component carriers are selected, the results of the component carrier (CC) with the highest power is displayed. Keysight N9927-90020 User’s Guide...
  • Page 369 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5GTF Option 377 (CPU2 Only) How to Set Up Over–the–Air (OTA) Mode Settings Figure 13-9 Example of the 5G TF Scan Results Table (Two cc and one cell) Keysight N9927-90020 User’s Guide...

  • Page 370: Additional Lte Fdd Examples (Lte Tdd Is Similar)

    Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5GTF Option 377 (CPU2 Only) How to Set Up Over–the–Air (OTA) Mode Settings Additional LTE FDD Examples (LTE TDD is Similar) Figure 13-10 Example of LTE FDD with Single Carrier, Multiple Cell Sites, KPIs Keysight N9927-90020 User’s Guide...
  • Page 371 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5GTF Option 377 (CPU2 Only) How to Set Up Over–the–Air (OTA) Mode Settings Figure 13-11 Example of LTE FDD with Multiple Carriers, Single Cell Site, and KPI’s Keysight N9927-90020 User’s Guide...

  • Page 372: 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 401. Figure 13-12 Using RTSA to verify LTE FDD 751 MHz signal quality–20 dB Signal to Noise Displayed (Requires Option 350 and Preamp Option 235) Keysight N9927-90020 User’s Guide...

  • Page 373: How To Define A Cell Or Cell(S) And Use Ota

    Step 1: LTE FDD (Option 370), LTE TDD (Option 371), and 5GTF (Option 377): Component Carrier (CC) and Cell Defined 1. Press Preset then Mode Preset (Factory) 2. Selecting an OTA mode: Press Measure > LTE FDD LTE TDD 5GTF 3. Optimizing the FieldFox to scan for signals: Keysight N9927-90020 User’s Guide...
  • Page 374 List, to open a softkey menu to save your Setup — For 5GTF (instrument dependent) 4. Select Trace 6—choose: — Window 1 2 3 4 — Then Win State OFF ON to ON — Then Data — Table — Bar Chart — Spectrum Keysight N9927-90020 User’s Guide...
  • Page 375 Log Meas Status OFF ON 6. Press Trigger Settings — Freerun (default) or — External sets a sweep to trigger on an external TTL signal at the External Trigger connector. External trigger is available only after initial setting. Keysight N9927-90020 User’s Guide...

  • Page 376: Step 2: Select Trace Type

    IMPORTANT! It is not sufficient to be locked to the GNSS satellite, the frequency reference must be locked to GPS. Step 2: Select Trace Type Select one of the following display orientations: — Press Trace 6—choose: — Table — Bar Chart — Spectrum — Strip Chart Keysight N9927-90020 User’s Guide...
  • Page 377 Option 377 (CPU2 Only) How to Set Up Over–the–Air (OTA) Mode Settings Figure 13-14 Table and Bar Chart Display Types – LTE FDD – (LTE TDD is similar) Figure 13-15 Spectrum and Strip Chart Display Type – 5GTF Keysight N9927-90020 User’s Guide...

  • Page 378: Step 3. Modify Scale And The Display Color Bar Settings

    3. And, then press System > Display > Display Colors, to set Indoor, Outdoor, or other display colors. See also Chapter 30, “System Settings.” Figure 13-16 Outdoor Display Colors Figure 13-17 Indoor Display Colors Keysight N9927-90020 User’s Guide...

  • Page 379: Step 4: Enable Data Logging And Playback The Results

    (If you have previously stored data recordings.) a. Outdoor Mapping only: To set the Record Settings—choose: — Meas Interval — Interval Time — Time Interval — Distance Interval b. Then press Record Save/Recall — Then File Folder Default System Keysight N9927-90020 User’s Guide...
  • Page 380 3. Outdoor Mapping: Press Record to begin a new recording and then — Then Maps To enable map view and related features (e.g., Data Selection, Red/Blue Limits, Labels & Icons, Zoom). Keysight N9927-90020 User’s Guide...
  • Page 381 1. Press Record Save/Recall > Recall Log File And, use the Use the RPG or the arrow keys to highlight the file to be played. 2. Press Recall File > Back > Play 3. Optional: Press Scale/Amptd Keysight N9927-90020 User’s Guide...

  • Page 382: Save 5: Save The Log Results

    — KML file format — 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. Keysight N9927-90020 User’s Guide...

  • Page 383: Step 6: Import And Play Back Kml Files Into 3Rd Party Software (Example: Google Earth With Animation Tool)

    — Open the FieldFox *.KML file in Google Earth. Time Slider appears in upper left of the map. — 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. Keysight N9927-90020 User’s Guide...
  • Page 384 Option 377 (CPU2 Only) How to Set Up Over–the–Air (OTA) Mode Settings — Click on each color coded balloon to see the table of measurement results for that location. Figure 13-18 Importing a KML File Into Google Earth Keysight N9927-90020 User’s Guide...

  • Page 385: How To Set Up Emf Settings (Requires Emf (Option 358))

    If OTA or SA mode does not detect an EMF Option 358 license, then the EMF application and the USB antenna’s axes must be set up manually. This use model is not recommended or supported by Keysight. The USB antenna’s cable loss is not included, in the antenna’s correction factors.
  • Page 386 How to Set Up EMF Settings (Requires EMF (Option 358)) — Field Strength units: — dBµV/m – For use with E-field signals — dBµA/m – For use with H-field signals — dBG – dB Gauss — dBpT - dB Tesla Keysight N9927-90020 User’s Guide...
  • Page 387 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5GTF Option 377 (CPU2 Only) How to Set Up EMF Settings (Requires EMF (Option 358)) Figure 13-19 Example of EMF with Triaxial Antenna Keysight N9927-90020 User’s Guide...

  • Page 388: Emf Setup Procedure

    Unable to communicate with antenna. Ensure it is connected. is displayed, verify the USB antenna is connected correctly. Refer to “Troubleshooting” on page 401. — Then Antenna Select [Tri Axial] verify Tri Axial is selected (Default == Manual). Keysight N9927-90020 User’s Guide...
  • Page 389 Press to view the Z axis 6. Verify EMF in 5G NR Mode (B Series FieldFoxes only): a. Press Mode > > 5G NR then b. Press Meas Setup 4 > More > > dBuV/m Keysight N9927-90020 User’s Guide...
  • Page 390 How to Set Up EMF Settings (Requires EMF (Option 358)) (i.e., For this example. Other units are selectable.) For more information: — Refer to Figure 13-20. — See also “Utilities” on page 736. Figure 13-20 Example Summing of Triaxial Values Keysight N9927-90020 User’s Guide...
  • Page 391 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5GTF Option 377 (CPU2 Only) How to Set Up EMF Settings (Requires EMF (Option 358)) Figure 13-21 Using SA Mode (Example) to Verify the Triaxial Values – Axis Y is Displayed Keysight N9927-90020 User’s Guide...

  • Page 392: How To Use Data Logging (Ota Options 370, 372, And 377)

    — The name of a recording can be changed using Manage Sessions. Learn more in “To change Data Logging Configuration settings:” on page 393. See also Chapter 30, “System Settings.” Keysight N9927-90020 User’s Guide...

  • Page 393: How To Record A Data Log Procedure

    For more, refer to “To change Data Logging Configuration settings:” on page 393. To change Data Logging Configuration settings: 1. Press Trace 6 > More > Data Logging 2. Then choose from the following: Keysight N9927-90020 User’s Guide...
  • Page 394 Refer to Chapter 32, “File Management”, on page 777. — Then File Type — KML (default) or — CSV — Then Save Log File. — Then Recall Log File. — Auto Save (default = OFF) Keysight N9927-90020 User’s Guide...

  • Page 395: How To Play A Data Log

    Immediately stops playback. Then choose from the following: — Play Start playback from trace 1. — Recall Log File Opens a list of stored data files. Select a file to playback. — Recall File — Back Keysight N9927-90020 User’s Guide...

  • Page 396: Other Features Available

    Analysis chapter’s section, “All about Scale Settings” on page 726 (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 172. Keysight N9927-90020 User’s Guide...

  • Page 397: About The Auto-Range Feature

    Executing an auto-range sets the Range, RF Attenuator, and Preamp settings. Executing an auto-range does NOT change any of the display settings (Ref Level, Scale or Ref Pos). Figure 13-22 OTA 5G NR Signal Before Auto-Range – Table Keysight N9927-90020 User’s Guide...
  • Page 398 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5GTF Option 377 (CPU2 Only) About the Auto-Range Feature Figure 13-23 OTA 5G NR Signal Before Auto-Range – Spectrum Figure 13-24 OTA 5G NR Before Auto-Range – Windows State ON Keysight N9927-90020 User’s Guide...
  • Page 399 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5GTF Option 377 (CPU2 Only) About the Auto-Range Feature Figure 13-25 OTA 5G NR Ongoing Auto-Range – Performing Auto-Range Figure 13-26 OTA 5G NR After Auto-Range, but RF Atten or Preamp Settings Changed Keysight N9927-90020 User’s Guide...
  • Page 400 Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5GTF Option 377 (CPU2 Only) About the Auto-Range Feature Figure 13-27 OTA 5G NR After Auto-Range and Clean Sweep Keysight N9927-90020 User’s Guide...

  • Page 401: 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 N9927-90020 User’s Guide...

  • Page 402: 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 N9927-90020 User’s Guide...
  • Page 403 Recommended, but not required, preamplifier (Option 235) to improve receiver sensitivity. Keysight's FieldFox handheld analyzer (with Option 360) combined with a Ball Aerospace / Anokiwave 64-element antenna array provides a unique, portable solution for measuring and analyzing the 5G air interface in the field.
  • Page 404 — Alignments (SA chapter) – “External Gain” on page 172 — External Gain (SA chapter) – “Troubleshooting” on page 441 Also “Why and When to Calibrate” on page 136 Chapter 30, “System Settings.” (Changing display colors) Chapter 32, “File Management.” Keysight N9927-90020 User’s Guide...

  • Page 405: Using The Phased Array Antenna (Option 360)

    — Individually factory characterized elements, magnitude and phase Data Logging. Record GPS stamped data measurements — Define measurement interval by time — Display files (KML) on Google Maps or distance or Google Earth — Show results in TableChart Keysight N9927-90020 User’s Guide...

  • Page 406: About Phased Array Antenna Measurements

    — Polar ANT – Scan azimuth angle. Elevation is fixed. — Park ANT – Polar image overlay load image: — Resize polar coordinates — Specify alignment angles — Specify compass true north — Define antenna direction (azimuth degrees) Keysight N9927-90020 User’s Guide...
  • Page 407 5G Rapid Prototype Phased Array Antenna – Option 360 About Phased Array Antenna Measurements Figure 14-1 Example of local point-to-point LAN connection Tripod not included. Keysight N9927-90020 User’s Guide...
  • Page 408 5G Rapid Prototype Phased Array Antenna – Option 360 About Phased Array Antenna Measurements Figure 14-2 Bore-Sight Scan – CW RF Figure 14-3 Polar Scan with compass displayed Keysight N9927-90020 User’s Guide...
  • Page 409 5G Rapid Prototype Phased Array Antenna – Option 360 About Phased Array Antenna Measurements Figure 14-4 Heat Map (Azimuth vs. Elevation) - Parked Antenna Keysight N9927-90020 User’s Guide...
  • Page 410 5G Rapid Prototype Phased Array Antenna – Option 360 About Phased Array Antenna Measurements Figure 14-5 Heat Map and Undocked Active Entry – Parked Antenna Scan elevation angles ±90 degrees and azimuth ±60 degrees Keysight N9927-90020 User’s Guide...
  • Page 411 5G Rapid Prototype Phased Array Antenna – Option 360 About Phased Array Antenna Measurements Figure 14-6 Polar Assign Orientation and Polar with Compass Orientation Keysight N9927-90020 User’s Guide...
  • Page 412 5G Rapid Prototype Phased Array Antenna – Option 360 About Phased Array Antenna Measurements Figure 14-7 Polar Measurement with Compass with Recalled Image of Indoor Auditorium Keysight N9927-90020 User’s Guide...
  • Page 413 CW vs. Pulsed RF Measurements IMPORTANT! For pulsed RF measurements, increasing the Dwell Time is recommended for faster throughput and accurate signal capture in a single sweep. Figure 14-8 Bore-Site Measurement with CW RF (Dwell Time=10 ms, Max Hold=OFF) Keysight N9927-90020 User’s Guide...
  • Page 414 5G Rapid Prototype Phased Array Antenna – Option 360 About Phased Array Antenna Measurements Figure 14-9 Bore-Site Measurement with Pulsed RF (Dwell Time=10 ms, Max Hold=OFF) Figure 14-10 Bore-Site Measurement with Pulsed RF (Dwell Time=100 ms, Max Hold=OFF) Keysight N9927-90020 User’s Guide...

  • Page 415: How To Set Up Phased Array Antenna Settings

    2. Set FieldFox to use static IP address: Press System — Then System Configuration > More > a. In the Setting screen, use the arrows, the rotary knob, or numeric keypad to highlight Obtain IP. b. Press Edit >Obtain IP Static Keysight N9927-90020 User’s Guide...
  • Page 416 "Check LAN connection. Check IP address." is no longer displayed during pinging of the Host IP address. Figure 14-12 Antenna Wizard Screen 4. Aligning the antenna’s azimuth and elevation orientation: Refer to Figure 14-14 on page 418. Keysight N9927-90020 User’s Guide...
  • Page 417 5G Rapid Prototype Phased Array Antenna – Option 360 How to Set Up Phased Array Antenna Settings Figure 14-13 Site Wide LAN Configurations and Field Measurements Configurations Keysight N9927-90020 User’s Guide...
  • Page 418 5G Rapid Prototype Phased Array Antenna – Option 360 How to Set Up Phased Array Antenna Settings Figure 14-14 Site Wide LAN Configurations and Field Measurements Configurations Azimuth and Elevation Alignment Orientation Diagram Keysight N9927-90020 User’s Guide...
  • Page 419 Preset Antenna presets the antenna settings factory defaults. — Ant LAN IP enter the Ball antenna’s LAN IP. First three fields must match the FieldFox’s static IP address (default: 192.168.1.10). Refer Figure 14-15 on page 425. Keysight N9927-90020 User’s Guide...
  • Page 420 > ON — Then Interval Type > choose Time or Distance. — Then, if applicable Time Interval enter time interval in seconds. — Then, if applicable Distance Interval enter distance interval in miters. — Then Back Keysight N9927-90020 User’s Guide...
  • Page 421 Data Logging Configuration settings:” on page 438. — To change your file settings or measurement interval. Learn more, refer to “To change Data Logging Configuration settings:” on page 438. — (Press Record to begin a new recording.) Keysight N9927-90020 User’s Guide...
  • Page 422 12. Select Trace 6—choose: For this step, refer to Figure 14-6 on page 411. — Polar Size Max Med Min Sets the size of the polar display. Smaller sizes used to overlay PNG maps. (Default = Max) Keysight N9927-90020 User’s Guide...
  • Page 423 Single — Continuous to enable or disable the continuous sweep (default: ON). Learn more, refer to Chapter 9, “SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers).” — Restart 15. Optional: choose devices and save files: Press Save/Recall Keysight N9927-90020 User’s Guide...
  • Page 424 17. Optional: Modify the averaging and Integrated BW settings: Press Then one of the following: — Average Enable OFF ON — Average Count — Integ BW Learn more, refer to Chapter 29, “Data Analysis Features” Chapter 9, “SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers).” Keysight N9927-90020 User’s Guide...
  • Page 425 Example of Phased Array Antenna and FieldFox Static IP Setup - First Three Static IP Fields Are the Same Setting the phased array antenna IP address Setting the FieldFox static IP address - First three fields the same as the antenna Keysight N9927-90020 User’s Guide...
  • Page 426 5G Rapid Prototype Phased Array Antenna – Option 360 How to Set Up Phased Array Antenna Settings Figure 14-16 Example Antenna Settings Table Keysight N9927-90020 User’s Guide...

  • Page 427: How To Define A Set Up A Scan And Use Option 360

    Phase Array Antenna Support Document. — The Ball antenna’s default static IP address is: 192.168.1.10 — Set FieldFox to use static IP address: Press System — Then System Configuration > More > Keysight N9927-90020 User’s Guide...

  • Page 428: Step 3. Define The Measurement

    See also “How to Set Up Phased Array Antenna Settings” on page 415. c. Set the Meas Setup > Antenna Settings table: — Ball Antenna: LAN address — Settings: Res BW, Video BW, and Beam Width Keysight N9927-90020 User’s Guide...
  • Page 429 IMPORTANT! It is not sufficient to be locked to the GNSS satellite, the frequency reference must be locked to GPS. Refer to Chapter 30, “System Settings” and then to “How to make GPS settings” on page 759. Keysight N9927-90020 User’s Guide...

  • Page 430: Step 4: Select Polar Settings

    — Antenna OFF ON — Edit Antenna — — Save Antenna — Recall Antenna — Storage Device — RcvrSide Cable then choose: — Cable OFF ON — Edit Cable — — Save Cable — Recall Cable Keysight N9927-90020 User’s Guide...

  • Page 431: Step 6: Enable Data Logging And Playback The Results

    Indoor Map Data Logging. — Record (Outdoor Logging) or — Play (If you have previously stored data recordings.) a. Outdoor Mapping only: To set the Record Settings—choose: — Meas Interval — Interval Type Time or Distance Keysight N9927-90020 User’s Guide...
  • Page 432 DREC file format. This file type is a binary file. File contains — recorded state and trace data, with GPS time and locations stamps if enabled. Available with Option 360 only. — Then Save Log File. Keysight N9927-90020 User’s Guide...
  • Page 433 Enables/Disables map data point labels. When enabled, Labels OFF ON a label is displayed for every map data point (e.g., “Data 1”). When disabled, labels are not displayed for the map data points. Keysight N9927-90020 User’s Guide...

  • Page 434: Step 7: Import And Play Back Kml Files Into 3Rd Party Software (Example: Google Earth With Animation Tool)

    — Open the FieldFox *.KML file in Google Earth. The time slider appears in upper left of the map. — Manual Mode – Move the time slider cursor to see color-coded icons pop-up according to the timestamp. Keysight N9927-90020 User’s Guide...
  • Page 435 How to Set Up Phased Array Antenna Settings — 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 14-17 Importing a KML File Into Google Earth Keysight N9927-90020 User’s Guide...

  • Page 436: How To Use Data Logging/Playback (Option 360)

    — Press Scale /Amptd > More > Unit then choose: — dBmV, dBuV, W, V, A, dBmA, or dbuA (Default Units: dBm) Figure 14-18 on page 437. Keysight N9927-90020 User’s Guide...
  • Page 437 — Is the sweep in HOLD? (upper-left annotation), or check the Sweep menu for Continuous set to OFF. — Is Recording or Playback Paused? (mid-left annotation) — Is the Data Logging or Playback Interval set too long? (Configuration settings.) Keysight N9927-90020 User’s Guide...

  • Page 438: How To Record A Data Log

    (Outdoor Mapping only) — Optional: Then Meas Interval > ON ——Then Interval Type > choose Time or Distance. ——Then, if applicable Time Interval enter time interval in seconds. ——Then, if applicable Distance Interval enter distance interval in miters. Keysight N9927-90020 User’s Guide...

  • Page 439: How To Play A Data Log

    Select a file to playback. — Recall File — Back — Cursor Position use this softkey to move the data log play cursor in the current data log being played (i.e., Cursor Position is active only when playback is paused). Keysight N9927-90020 User’s Guide...

  • Page 440: Using Mapping

    Analysis chapter’s section, “All about Scale Settings” on page 726 (not all of the settings apply to OTA Option 360). — External Gain - Refer to refer to the SA chapter’s section, “External Gain” on page 172. Keysight N9927-90020 User’s Guide...

  • Page 441: Troubleshooting

    ) on the left side of the FieldFox display, verify your connections. IMPORTANT! If you forget you N9910X-028 Ball Antenna’s static IP address, refer to this link and the Support tab for assistance: www.keysight.com/find/fieldfox and then to the Phase Array Antenna Support Document. Keysight N9927-90020 User’s Guide...
  • Page 442 5G Rapid Prototype Phased Array Antenna – Option 360 Troubleshooting Keysight N9927-90020 User’s Guide...

  • Page 443: Usb Antennas - (Full Capability Requires Emf Option 358, And Sa Mode (Option 233 Mixed Analyzers))

    Triaxial USB antennas (also, referred to as EMF antennas) can be used without EMF Option 358, but with limited capability and doing so is not recommended or supported by Keysight. IMPORTANT! EMF is only compatible with 5G NR/5G NR EVM Conducted (Option 378) and SA Mode (Requires Option 233—combination analyzers).
  • Page 444 — Measure and display corrected field strength in RMS average power — Antenna control and X, Y, and Z antenna factors can be downloaded via a Figure 15-1 FieldFox With USB Antenna Keysight N9927-90020 User’s Guide...
  • Page 445 — Scale Settings – “Troubleshooting” on page 454 See Also “Why and When to Calibrate” on page 136 “Using the Antenna/Cable Editor” on page 177 Chapter 30, “System Settings.” (Changing display colors) Chapter 32, “File Management.” Keysight N9927-90020 User’s Guide...

  • Page 446: Using Usb Antennas (Also, Known As Emf Antennas)

    Using USB Antennas (Also, Known as EMF Antennas) Triaxial USB antennas can be used without EMF Option 358, but with limited capability and doing so is not recommended by Keysight. USB antennas enables you to do the following: Measures electro-magnetic fields (EMF) for radio frequencies in proximity of radio and television...

  • Page 447: About Usb Antenna (Also, Known As Emf Antenna) Measurements

    X/Y/Z antenna amplitude corrections for EMF measurements — SA mode X/Y/Z factors—if available—are enabled by default — OTA mode 5G NR – EMF can be manually enabled (5G NR Applies to B Series FieldFoxes only.) Figure 15-2 Example Summing of Triaxial Values Keysight N9927-90020 User’s Guide...
  • Page 448 USB Antennas – (Full Capability Requires EMF Option 358, and SA mode (Option 233 Mixed Analyzers)) About USB Antenna (Also, Known as EMF Antenna) Measurements Figure 15-3 Example Verifying the Triaxial Values – Axis Y is Displayed Keysight N9927-90020 User’s Guide...

  • Page 449: How To Set Up A Usb Antenna (Also, Known As Emf Antenna)

    “Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5GTF Option 377 (CPU2 Only)”. 3. Importing and selecting the X/Y/Z antenna factors: a. OTA – 5G NR and SA Mode: Press System > Utilities EMF Antennas > > Keysight N9927-90020 User’s Guide...
  • Page 450 X, Y, and Z measurement values in the FieldFox. Multi-cell measurements are done similarly for each cell ID (i.e., Cell CC0 to CCn). Refer to Figure 15-4 on page 451. Keysight N9927-90020 User’s Guide...
  • Page 451 USB Antennas – (Full Capability Requires EMF Option 358, and SA mode (Option 233 Mixed Analyzers)) How to Set Up a USB Antenna (Also, Known as EMF Antenna) Figure 15-4 Example Summing of Triaxial Values Figure 15-5 Example Verifying EMF Keysight N9927-90020 User’s Guide...

  • Page 452: Editing Antenna Correction Factors And Adding New Antenna Factors

    How to Set Up a USB Antenna (Also, Known as EMF Antenna) Editing Antenna Correction Factors and Adding New Antenna Factors Keysight does not recommend editing a USB antenna’s correction factors. If New is selected under the X, Y, or Z Antenna or Cable softkey menu, whatever antenna or cable factors that have been imported as the default values and are displayed in the Settings table.

  • Page 453: Other Features Available

    — Record Playback - Refer to refer to the Interference Analyzer chapter’s section, “Record/Playback (SA Option)” on page 520 and to the OTA chapter’s “How to Use Data Logging (OTA Options 370, 372, and 377)” on page 392. Keysight N9927-90020 User’s Guide...

  • Page 454: Troubleshooting

    On (Default == Off) — If you are having problems with your measurement, verify the antenna corrections have been enabled: Press Scale/Amptd > More > Corrections > Apply Corrections [Auto] (default == Auto, enabled) Preamplifier set to ON Keysight N9927-90020 User’s Guide...

  • Page 455: Indoor And Outdoor Mapping - Option 352 (Requires Spectrum Analyzer Mode (Option 233 On N991Xa), And Gps Receiver (Option 307))

    Recommended, but not required, preamplifier (Option 235) to improve receiver sensitivity. Keysight's FieldFox handheld analyzer (with Option 352) combined with a USB triaxial antenna (p/o EMF Measurements – Option 358) provides a unique, portable solution for indoor and outdoor mappings in the field. Option 352...
  • Page 456 “How to Install Node.js and Running the FieldFox Mapping Software” on page 460 “Downloading and Using the FieldFox Map Support Tool” on page 462 “Importing a .zip File to the FieldFox” on page 466 “How to Set Up Mapping Settings” on page 469 Keysight N9927-90020 User’s Guide...
  • Page 457 — External Gain (SA chapter) – page 172 “All about — Scale Settings (Data Analysis chapter) – Scale Settings” on page 726 “Why and When to Calibrate” on page 136 Chapter 30, “System Settings.” (Changing display colors) Chapter 32, “File Management.” Keysight N9927-90020 User’s Guide...
  • Page 458 — Define measurement interval by time — Add Directional Finding bearing or distance — Display files (KML) on Google Maps or Google Earth — Show results in TableChart Figure 16-1 Maps (Outdoor) With Line Feature Enabled Keysight N9927-90020 User’s Guide...
  • Page 459 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233 on N991xA), and GPS Receiver (Option 307)) Figure 16-2 Maps With Current Position Marker Displayed - (OpenStreetMaps) Figure 16-3 Using Mapping (Option 352) - Satellite View for Indoor Mapping Keysight N9927-90020 User’s Guide...

  • Page 460: How To Install Node.js And Running The Fieldfox Mapping Software

    8. 2. Run the Node.JS installation file, by accepting the wizard’s defaults (i.e., including leaving the "Automatically install the necessary tools. Note that..." check box empty (unchecked)). Refer to Figure 16-4 Figure 16-5 on page 461. Keysight N9927-90020 User’s Guide...
  • Page 461 (Option 233 on N991xA), and GPS Receiver (Option 307)) How to Install Node.js and Running the FieldFox Mapping Software Figure 16-4 Downloading the Node.js Installer to a PC Figure 16-5 Default Download Path for Node.js Installer to a PC IMPORTANT! Do not change path. Keysight N9927-90020 User’s Guide...

  • Page 462: Downloading And Using The Fieldfox Map Support Tool

    Figure 16-6 (The Mapping software is not compatible with Internet Explorer). Figure 16-6 FieldFox Mapping Opens in HTML5 Compatible Browser (Overview) 3. Run the FieldFox Map Support Tool software’s, installation software. Refer Figure 16-7 on page 463. Keysight N9927-90020 User’s Guide...
  • Page 463 Hint: To clear and redraw the box choices, click the trashcan button ( b. Step 2. Select Zoom Levels to Save and Download: — Select all Zoom levels of the map you wish to save. Hint: Keysight N9927-90020 User’s Guide...
  • Page 464 Step 3. Input a filename to store your requested images from OpenStreetMaps. The *.zip file is then stored in your PC’s Downloads folder. Figure 16-8 FieldFox Mapping Opens in HTML5 Compatible Browser (Zoom) Keysight N9927-90020 User’s Guide...
  • Page 465 Map file folders or filenames. Doing so will prevent the FieldFox from being able to recognize the map files. New downloaded Map folders, for the same map locations and zoom levels, will overwrite any existing folders on the FieldFox. Figure 16-9 New Maps Zip File – MapExample_1 Keysight N9927-90020 User’s Guide...

  • Page 466: Importing A .Zip File To The Fieldfox

    .zip file listed, select the .zip file you want to load by using arrows, or the rotary knob and then press Recall File. Refer to Figure 16-11 on page 468 Figure 16-11 on page 468. 5. Press Back to return to the previous menu. Keysight N9927-90020 User’s Guide...
  • Page 467 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233 on N991xA), and GPS Receiver (Option 307)) Importing a .zip File to the FieldFox Figure 16-10 Example of a Maps *.zip Being Recalled From a USB Storage Device Keysight N9927-90020 User’s Guide...
  • Page 468 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233 on N991xA), and GPS Receiver (Option 307)) Importing a .zip File to the FieldFox Figure 16-11 Example of Maps Folder Containing Imported Maps *.zip Files to the FieldFox’s InternalSD\UserData\Maps Folder Keysight N9927-90020 User’s Guide...

  • Page 469: How To Set Up Mapping Settings

    Figure 16-12 Overview – Setting Up Option 352 (Indoor Mapping) Using Other Modes — “Option 352 Outdoor Maps Setup Procedure” (Requires GPS Option 307) Figure 16-13 Overview – Setting Up Option 352 (Outdoor Mapping) Using Other Modes Keysight N9927-90020 User’s Guide...

  • Page 470: How To Set Up Mapping When The Fieldfox Is On The Lan

    “Current Area Center” value displayed in the FieldFox Mapping software. Refer to Figure 16-14. Optional: If you want to stop the "Reading map..." process, press Esc to stop map search. 4. Repeat step for Longitude. Keysight N9927-90020 User’s Guide...
  • Page 471 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233 on N991xA), and GPS Receiver (Option 307)) How to Set Up Mapping Settings Figure 16-14 Example of Current Area Center Latitude and Longitude Values Keysight N9927-90020 User’s Guide...

  • Page 472: Option 352 Indoor Maps Setup Procedure

    Source Device [Internal] – Internal (default), Card, USB, or CD Drive — Press Destination Device [Internal] – Internal (default), Card, USB, or CD Drive c. Recommended: Do an interactive Walk Test data collection using the location pointer. Keysight N9927-90020 User’s Guide...
  • Page 473 5. Set up the indoor mapping press More > Indoor Map Data Logging then choose — Press Record Indoor Data – opens a menu of previously stored PNG files to select to record a new data log Keysight N9927-90020 User’s Guide...
  • Page 474 FieldFox itself. KDAT files cannot be opened via Data Link. An auxiliary CSV data file is generated automatically, each time a KDAT file is saved during an indoor mapping session. The CSV contains the recorded data, without the image, location of the recorded data, etcetera. Keysight N9927-90020 User’s Guide...
  • Page 475 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233 on N991xA), and GPS Receiver (Option 307)) How to Set Up Mapping Settings Figure 16-15 Example of an Indoor Building Map with Single Icon and Bore Sight Pointer Keysight N9927-90020 User’s Guide...

  • Page 476: Option 352 Outdoor Maps Setup Procedure

    Refer to “How to Install Node.js and Running the FieldFox Mapping Software” on page 460. For FTP, refer to :MMEM SCPI commands in the FieldFox Programming Help http://na.support.keysight.com/fieldfox/help/Programming/webhel p/FFProgrammingHelp.htm. b. Optional (Can be done later): Keysight N9927-90020 User’s Guide...
  • Page 477 — Red Limit – Determines the dBm value of the red limit (default = –20 dBm). — Blue Limit – Determines the dBm value of the blue limit (default = –90 dBm). When done entering each setting, press Enter. Keysight N9927-90020 User’s Guide...
  • Page 478 — For setting up GPS Option 307, refer to Chapter 30, “System Settings,” and then “GNSS (GPS+) and GPS” on page 758. — For setting up a phased array antenna, refer to Chapter 14, “5G Rapid Prototype Phased Array Antenna – Option 360.” Keysight N9927-90020 User’s Guide...
  • Page 479 FieldFox display. Then Edit (the color coded bar scale Red or Blue limits are at the top of the FieldFox display). Keysight N9927-90020 User’s Guide...
  • Page 480 7. Then press Esc > Back > Trace 6 > More (required for OTA only) > Data Logging > Record Save/Recall — Then File Folder Default System — Default – Sets the default User Folder path: Keysight N9927-90020 User’s Guide...
  • Page 481 — On the FieldFox, see the data results overlaying OpenStreetMaps’ pictures. Or use Google Maps or similar to view your maps on your PC. Refer “Import and Play back KML Files into 3rd Party Software (Example: Google Earth with Animation Tool)” on page 482. Keysight N9927-90020 User’s Guide...

  • Page 482: Import And Play Back Kml Files Into 3Rd Party Software

    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. Refer to Figure 16-21 on page 483. Keysight N9927-90020 User’s Guide...
  • Page 483 — 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 16-21 Importing a KML File Into Google Earth Keysight N9927-90020 User’s Guide...

  • Page 484: Setting Up Data Logging

    View softkey menu and return to the previous menu. — Zoom use this softkey zoom in/out. This softkey is only available in Channel Scanner and Phased Array Antenna modes (i.e., The Cursor Position softkey is not available for OTA mode). Keysight N9927-90020 User’s Guide...
  • Page 485 CSV/KML file has been recalled) to play the current recording in memory. — Press Stop Immediately — The Save the log file menu opens. Edit the filename and press Done to exit menu. See Settings below and “To change Data Logging Configuration settings:” on page 498. Keysight N9927-90020 User’s Guide...
  • Page 486 Then choose from the following: Enables/Disables map data point labels. Labels When enabled, a label is displayed for every OFF ON map data point (e.g., “Data 1”). When disabled, labels are not displayed for the map data points. Keysight N9927-90020 User’s Guide...

  • Page 487: Enabling And Setting Up Indoor Map Logging

    *.png. file. Optionally, if you save a file as a *.png file and then recall the file, you can add data points and save the changes as a *.kdat file. Keysight N9927-90020 User’s Guide...
  • Page 488 (default = 100). Sets the point to be edited. Select Point Takes you back to the previous softkey menu. Back — Record Data To record a data point in the specified intervals using currently selected labels and icons. Keysight N9927-90020 User’s Guide...
  • Page 489 Opens a menu to set the RPG’s functionality for RPG [Zoom] mapping. Choose from: Zoom —— - (default) Zooms in/out. <––> —— - RPG knob moves the map East or West. —— - RPG knob moves the map north or south. Keysight N9927-90020 User’s Guide...
  • Page 490 The CSV contains the recorded data, without the image, location of the recorded data, etcetera. 3. Press Record Save/Recall Opens a softkey menu to manage your data logging filenames and file folder locations Keysight N9927-90020 User’s Guide...

  • Page 491: Outdoor Mapping Only: Export Kml File Into 3Rd Party Mapping Software

    — Export KML file into 3rd party mapping software (i.e., Google Map or Google Earth). Refer to “Import and Play back KML Files into 3rd Party Software (Example: Google Earth with Animation Tool)” on page 482. Keysight N9927-90020 User’s Guide...

  • Page 492: How To Use Data Logging (Option 352)

    FieldFox display. Learn more, see the FieldFox User’s Guide’s “System Settings” chapter. The Mapping mode can display and be recorded/played back in field strength units, when the units are changed: Keysight N9927-90020 User’s Guide...
  • Page 493 — Is the sweep in HOLD? (upper-left annotation), or check the Sweep menu for Continuous set to OFF. — Is Recording or Playback Paused? (mid-left annotation) — Is the Record or Playback Interval set too long? (Configuration settings.) Keysight N9927-90020 User’s Guide...

  • Page 494: How To Add Directional Finding (Df) Bearing

    Rotate the line about the current point (your current location) to point towards the highest signal strength seen by your directional antenna. You can rotate the knob to rotate the line, or you can type an angle into the active entry directly. Keysight N9927-90020 User’s Guide...
  • Page 495 — Delete Point – deletes the currently selected point. — Then Clear Points – Deletes all of the displayed bearing points and lines. Keysight N9927-90020 User’s Guide...
  • Page 496 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233 on N991xA), and GPS Receiver (Option 307)) How to Use Data Logging (Option 352) Figure 16-23 Directional Finding (DF) Bearing – Outdoor Map Data Logging Example Keysight N9927-90020 User’s Guide...

  • Page 497: How To Record A Data Log (Outdoor Logging Only)

    If File Folders are set to System, then Data Log-Play files are — save-recalled to: "CurrentDevice\<UserSelectedFolder>\ — Press Trace 6 > Data Logging — Then Record (Outdoor Logging Only) is displayed in the left of screen graticules. Keysight N9927-90020 User’s Guide...

  • Page 498: To Change Data Logging Configuration Settings

    (CSV (default), DREC, or KML) Learn more, refer to the Chapter 32, “File Management”. How to Play a Data Log — Press Trace 6 — If the session is already open, skip the following step. Otherwise: Keysight N9927-90020 User’s Guide...
  • Page 499 (i.e., The Cursor Position softkey is not available for OTA mode). — Press Maps – to open a softkey menu enable map view and related features (e.g., Data Selection, Red/Blue Limits, Labels & Icons, Zoom). Learn more, “Enabling Outdoor Map Logging” on page 484. Keysight N9927-90020 User’s Guide...

  • Page 500: Update Available Message

    Refer to Figure 16-25. Figure 16-25 Example of “UPDATE AVAILABLE” Message Troubleshooting This section contains the following: — “General Troubleshooting” — “Port 5000 in Use Error” on page 502 — “Miscellaneous Mapping Errors” on page 504 Keysight N9927-90020 User’s Guide...
  • Page 501 Do not change the default name of the directory path for downloading the Node.js program, because FieldFox uses the default program path name to run the Mapping feature. Refer to Figure 16-4. Examples of Web Browsers that not supported are Internet Explorer 6, 7, and 8. Keysight N9927-90020 User’s Guide...

  • Page 502: General Troubleshooting

    — If the cmd.exe window displays a "This port was picked because 5000 is in use." error, then: a. Type Ctrl + c in the command window b. Press Enter c. The command window should display text “Terminate batch job? (Y/N)”: Type Y and then press Enter Keysight N9927-90020 User’s Guide...
  • Page 503 — Move the map area by clicking the left mouse to the area you have selected or — Click the “Red X” to cancel the download Figure 16-27 Example of “This port...because 5000 is in use.” Error Keysight N9927-90020 User’s Guide...

  • Page 504: Miscellaneous Mapping Errors

    “localhost:5000” address into your clipboard. 4. Paste the “localhost:5000” address into a different browser and use OpenStreeMaps.org to save your Map image zip file. Figure 16-28 Example of “This site says... Got error: Failed to fetch” Error Keysight N9927-90020 User’s Guide...
  • Page 505 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233 on N991xA), and GPS Receiver (Option 307)) Troubleshooting Figure 16-29 Example of ’Checkerboard’ Mapping Error Keysight N9927-90020 User’s Guide...
  • Page 506 Indoor and Outdoor Mapping – Option 352 (Requires Spectrum Analyzer Mode (Option 233 on N991xA), and GPS Receiver (Option 307)) Troubleshooting Keysight N9927-90020 User’s Guide...
  • Page 507 736. The FieldFox can be used with an OML frequency extender. Refer to “Utilities” on page 736, the A Series FieldFox Configuration Guide 5990-9836EN, and to “Contacting Keysight” on page 1. To order the 89600 VSA Software, refer to https://www.keysight.com/find/assist/.
  • Page 508 89600 VSA software license loaded and running on a remote PC, and connected via LAN to your FieldFox. (i.e., Requires 89600 VSA software version ≥22.01). Refer to https://support.keysight.com/s/. When in Remote Server mode, most of the front panel hardkeys are locked and will beep, but perform no actions when pressed (i.e., the FieldFox front...

  • Page 509: Remote Server Mode (Requires Cpu2 And Sa Hardware/Sa Option 233) In This Chapter

    SA Option 233)” on page 512 See Also Optional Settings: “LAN Settings” on page 767 “All about Markers” on page 700 “All about Limit Lines” on page 715 “All about Trace Math” on page 724 Keysight N9927-90020 User’s Guide...

  • Page 510: Connecting Using Remote Server

    Figure 17-1 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 N9927-90020 User’s Guide...

  • Page 511: Changing Frequency Converter Head Settings

    4. Reconnect the FieldFox to the VSA using the VSA’s software ( For more information, refer to “89600 VSA Software Overview (Requires CPU2 and N991xA/3x/A5x/A6xA and SA Option 233)” on page 512. Keysight N9927-90020 User’s Guide...

  • Page 512: 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 https://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 513 — Easy-to-use Microsoft Windows graphical user interface For a comprehensive FieldFox VSA mode help, refer to http://rfmw.em.keysight.com/wireless/helpfiles/89600B/WebHelp/89600.ht For additional information on the 89600 VSA Software brochure, refer to https://www.keysight.com/us/en/assets/7018-02714/brochures/5990-6553. For Technical Overview, refer to https://www.keysight.com/us/en/assets/7018-02679/technical-overviews/5 990-6405.pdf Keysight N9927-90020 User’s Guide...
  • Page 514 Remote Server Mode (Requires CPU2 and SA Hardware/SA Option 233) 89600 VSA Software Overview (Requires CPU2 and N991xA/3x/A5x/A6xA and SA Option 233) Keysight N9927-90020 User’s Guide...
  • Page 515 Keysight Handheld Analyzers N99xxA User’s Guide 18 Interference Analyzer (SA Mode) – Option 236 Option 236 provides Spectrogram display, Waterfall display, and Record/Playback. In this Chapter “Spectrogram Display (SA Option)” on page 516 “Common Settings for Waterfall and Spectrogram” on page 518 “Waterfall Display”...

  • Page 516: Spectrogram And Waterfall Displays

    “Frequency Range” on page 165. — Resolution BW and Video BW. Learn more in “Resolution Bandwidth (Res BW)” on page 198 “Video Bandwidth (Video BW)” on page 199. — Sweep Time (Acquisition). Learn more in.“Sweep Acquisition” on page 202 Keysight N9927-90020 User’s Guide...

  • Page 517: How To Select Spectrogram

    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 N9927-90020 User’s Guide...

  • Page 518: 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 N9927-90020 User’s Guide...

  • Page 519: Averaging

    — Then Waterfall Angle — Then choose from the following: — Moderate Compromise between detail and number of records. — Steep Least detail with highest number of records. — Gradual Most detail with lowest number of records. Keysight N9927-90020 User’s Guide...

  • Page 520: Record/Playback (Sa Option)

    This estimate always keeps 4 MB of available disk space on the specified storage device. You can decrease the number of traces to further limit recording. The resolution setting can NOT be changed after a session is opened. Keysight N9927-90020 User’s Guide...

  • Page 521: To View And Edit The Maximum Number Of Records

    SA option. Table 18-1 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 Keysight N9927-90020 User’s Guide...

  • Page 522: During Playback

    A symbol is used on the screen annotation to distinguish a User Tag from a State Tag when scrolling through tags during playback. Keysight N9927-90020 User’s Guide...

  • Page 523: How To Record A Session

    “Points” on page 212. This can NOT be changed after a session is opened. — Then either: — New Session — Recall Session then Open and select a session. — Then Recorder Player — Then Record Keysight N9927-90020 User’s Guide...

  • Page 524: How To Playback A Session

    Enter a value between 1 and the total number of traces using the numeric keypad, arrows, or the rotary knob. — Stop Immediately stops playback. Then choose from the following: — Play Start playback from trace 1. — Record Resume recording from the last recorded trace. Keysight N9927-90020 User’s Guide...

  • Page 525: Recording Configuration

    Default is MIN, which is to wait 0 seconds (record traces as fast as possible). Enter a value in seconds between 0 (no delay) and 10,000 seconds - about 3 hrs) using the numeric keypad, arrows, or the rotary knob. Keysight N9927-90020 User’s Guide...

  • Page 526: Frequency Mask Trigger Configuration (Sa Mode Only)

    Segment Count is OFF, or (if ON) until Segment Count is reached. Frequency Mask Trigger Configuration (SA Mode Only) Create or recall a Frequency Mask to be used with the FreqMaskTrigger feature. Frequency Mask Trigger only applies to SA mode. Keysight N9927-90020 User’s Guide...

  • Page 527: Record Source

    However, for more complicated processing, refer to the following diagrams. 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 212. Keysight N9927-90020 User’s Guide...

  • Page 528: Sa Data Recording

    Playback a Session in “How to Playback a Session” on page 524. To slow playback of a session: — Record a new session or Open an existing session. — Press Playback Configuration — Then Playback Interval Keysight N9927-90020 User’s Guide...

  • Page 529: Manage Sessions

    Copies ALL of the listed sessions to a different storage device, or the same storage device with ‘Copy(n)_’ appended to the beginning of the names so that duplication is prevented. — Delete All Deletes ALL of the listed sessions. Keysight N9927-90020 User’s Guide...

  • Page 530: Record Playback Example (Sa Only)

    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 N9927-90020 User’s Guide...
  • Page 531 Keysight Handheld Analyzers N99xxA User’s Guide 19 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 532 Built-in Power Meter Mode – Option 310 “Limits” on page 552 The following Built-in Power Meter settings are identical to SA Mode settings: “Radio Standard” on page 534 “How to Access Individual Alignments” on page 219 Keysight N9927-90020 User’s Guide...

  • Page 533: 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 N9927-90020 User’s Guide...

  • Page 534: Radio Standard

    Power Meter settings. To learn about these settings, please refer to the following pages: “Scale” on page 549 “Relative and Offset Power Measurements” on page 550 “Display Units” on page 550 “Averaging” on page 551 “Scale” on page 549 “Limits” on page 552 Keysight N9927-90020 User’s Guide...
  • Page 535 Option 320 is not available on N991xA, N992xA, or N995xA models. This feature may require an option. Please view the FieldFox Configuration Guide at: A Series FieldFox Configuration Guide 5990-9836EN. Reflection Mode measurements are very similar to CAT mode reflection measurements.
  • Page 536 137. In addition, Normalization is available. Learn how “Normalize” on page 538. However, other calibration types are NOT offered. In this Chapter “How to select Reflection Mode” on page 538 “Measurement Selection” on page 538 “Normalize” on page 538 Keysight N9927-90020 User’s Guide...
  • Page 537 “Resolution (Number of Data Points)” on page 66 “Sweep Time” on page 66 “Output Power” on page 67 “Interference Rejection” on page 68 “All about Markers” on page 700 “All about Limit Lines” on page 715 Keysight N9927-90020 User’s Guide...

  • Page 538: Reflection Mode Settings

    You could normalize while measuring the reflection response of any type of device. For example, the device could be: — An Open or Short (with maximum reflection) Keysight N9927-90020 User’s Guide...

  • Page 539: How To Perform Normalization

    Learn more about Trace Math in “All about Markers” on page 700. Data interpolation is NOT supported. If the Resolution setting is changed with Trace Math enabled, the FieldFox will disable the math operation. Keysight N9927-90020 User’s Guide...
  • Page 540 Reflection Mode (SA Models) - Option 320 Reflection Mode Settings Keysight N9927-90020 User’s Guide...
  • Page 541 21 Power Meter (USB/LAN) Mode - Option 302 LAN sensors require the FieldFox to have CPU2. 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”...
  • Page 542 “Limits” on page 552 See Also “FOPS Settings” on page 561 “All about Markers” on page 700 “All about Limit Lines” on page 715 “All about Trace Math” on page 724 “All about Scale Settings” on page 726 Keysight N9927-90020 User’s Guide...

  • Page 543: Power Meter (Usb/Lan) Mode - Option 302

    Power Meter (USB/LAN) Mode - Option 302 Supported Power Sensors For a complete list of supported Keysight USB and LAN Power Sensors, please visit: www.keysight.com/find/usbsensorsforfieldfox The FieldFox does NOT support the following Keysight USB and LAN Power Sensor features: External Triggering (Time Gated Burst Power Measurement), Power Sweep Operation, and Frequency Sweep Operation.

  • Page 544: How To Connect A Lan Power Sensor

    — Static IP (Manual mode) The default LAN operating mode of the LAN sensor is Dynamic IP. Dynamic IP and Auto IP are enabled on the LAN sensor shipped from Keysight. This allows the LAN sensor to automatically obtain an address on the network.
  • Page 545 DHCP. The sensor will try to obtain IP address using AutoIP if enabled". For more information on LAN instrument connectivity, refer to the Keysight IO Libraries Suite Connectivity Guide. IMPORTANT! When a LAN power sensor is initially connected to the LAN, it may take ~10 seconds for the LAN power sensor to finish zeroing and for the FieldFox to recognize the LAN power sensor.

  • Page 546: Usb And Lan Power Meter Settings

    — Press Meas Setup 4. — Then Sensor Type USB LAN (Default = USB). Average / Peak — Press Measure 1 — Then choose from the following: — Average Measures and reports the average of the power measurements. Keysight N9927-90020 User’s Guide...

  • Page 547: Zeroing

    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 548: Source Control

    Src Nom Power (-15 dBm default setting) Set output power to an arbitrary value at the displayed CW frequency. — Then enter a value using the numeric keypad, the arrows, or the rotary knob. — Press Enter Keysight N9927-90020 User’s Guide...

  • Page 549: Scale

    — Then Autoscale. Source Power Measurements Before making a source power measurement, a calibration is required. Requires a compatible USB power sensor. Learn more about supported Keysight USB and LAN Power Sensors, please visit: www.keysight.com/find/usbsensorsforfieldfox. How to make a Source Power Measurement —...

  • Page 550: Relative And Offset Power Measurements

    This softkey is not available when Rx Power is enabled. See also “Source Power Measurements” on page 549. How to set Power Meter display units — Press Meas Setup 4 or Scale / Amptd, More — Then Unit. Keysight N9927-90020 User’s Guide...

  • Page 551: Resolution

    Single button is pressed. Use Single to conserve battery power or to allow you to save or analyze a specific measurement. This setting can be changed at any time without affecting calibration accuracy. Keysight N9927-90020 User’s Guide...

  • Page 552: How To Set Single Or Continuous

    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 553 USB and LAN Power Meter Settings — Max Limit OFF ON Toggles the display of the Maximum limit ON and OFF. — Max Limit Value Sets the Maximum limit power value. Power reading higher than this will exceed the limit. Keysight N9927-90020 User’s Guide...

  • Page 554: Troubleshooting

    1. Reconnect the LAN cable to the sensor. 2. Observe the LEDs near the LAN cable connection: a. The PWR LED will turn on while the Sensor is waking up and initializing. Keysight N9927-90020 User’s Guide...
  • Page 555 The LEDs may turn on and off during the reconnection, and the sensor may report “Zeroing” or “Attempting to connect” messages. This reconnection attempt could take up to a minute or so. The data acquisition will resume once the connection is re-established. Keysight N9927-90020 User’s Guide...
  • Page 556 Power Meter (USB/LAN) Mode - Option 302 Troubleshooting Keysight N9927-90020 User’s Guide...
  • Page 557 FOPS is accessed through (and requires) Option 302 USB Power Meter Mode. With both options installed, you can send a signal with the FieldFox internal source at one frequency, and measure this signal with a Keysight U-Series USB Power Sensor at another frequency.
  • Page 558 Frequency Offset Using Power Sensor (FOPS) – Option 208 “Amplitude Markers” on page 565 “Trace Math” on page 565 See Also “All about Scale Settings” on page 726 Keysight N9927-90020 User’s Guide...

  • Page 559: Frequency Offset Using Power Sensor (Fops) - Option 208 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 N9927-90020 User’s Guide...
  • Page 560 Frequency Offset Using Power Sensor (FOPS) – Option 208 Overview The dynamic range with FOPS may be significantly different when using various power sensors. In general, the lower frequency range sensors have better dynamic range. Keysight N9927-90020 User’s Guide...

  • Page 561: 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 562: 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 563 Rx = 1 GHz to 2 GHz Positive Offset, RxSwp = (Offs - Src) Src = 2 GHz to 3 GHz Offset = 3.8 GHz Rx = 1.800 GHz to 800 MHz Positive Offset, RxSwp = (Offs + Src) Keysight N9927-90020 User’s Guide...

  • Page 564: Power Sensor Settling

    — Src Nom Power (-15 dBm default setting) Set output power to an arbitrary value at the source CW frequency. Then enter a value using the numeric keypad, the arrows, or the rotary knob. Press Enter Keysight N9927-90020 User’s Guide...

  • Page 565: 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 Keysight N9927-90020 User’s Guide...
  • Page 566 Frequency Offset Using Power Sensor (FOPS) – Option 208 FOPS Settings 3. View Data & Memory 4. Meas Src Power. Keysight N9927-90020 User’s Guide...
  • Page 567 23 Pulse Measurements Mode – Option 330 Pulsed power meter measurements, available with Option 330, are made with Keysight X-Series USB and LAN Peak Power Sensors. These sensors are capable of detecting, measuring, and storing data from a train of pulses at the RF input.
  • Page 568 Many of the features included with the FieldFox Pulse Measurements Mode are discussed in detail in the following documents: USB Power Sensors — Keysight U2020 X-Series USB Peak Power Sensors User’s Guide (U2021-90002). https://www.keysight.com/us/en/assets/9018-02579/user-manuals/9018-02 579.pdf — Keysight U2020 X-Series USB Peak Power Sensors Programmer’s Guide (U2021-90003).

  • Page 569: Supported Power Sensors

    Learn more, refer to the User’s Guide and Programming Guide for your USB or LAN model power sensor. Supported Power Sensors Pulse measurements are made using any of the Keysight X-Series USB and LAN Peak Power Sensors. Table 23-1...

  • Page 570: How To Connect The Usb Power Sensor

    — Static IP (Manual mode) The default LAN operating mode of the LAN sensor is Dynamic IP. Dynamic IP and Auto IP are enabled on the LAN sensor shipped from Keysight. This allows the LAN sensor to automatically obtain an address on the network.

  • Page 571: Lan Sensor Settings

    DHCP server is not detected: –310, "System error; The sensor could not obtain a LAN configuration using DHCP. The sensor will try to obtain IP address using AutoIP if enabled". For more information on LAN instrument connectivity, refer to the Keysight IO Libraries Suite Connectivity Guide. Keysight N9927-90020 User’s Guide...
  • Page 572 — Red light indicates an error has occurred with the power sensor. Refer to power sensor documentation. — No light indicates the FieldFox is not communicating with the power sensor. This is the case when in Hold mode or when NOT in Power Meter Mode. Keysight N9927-90020 User’s Guide...

  • Page 573: Pulse Measurement Settings

    — Learn how to set Display Units in “Display Units” on page 550. — Learn how to set Limits in “Limits” on page 552. Frequency / Time How to set Frequency — Press Freq/Dist — Then choose from the following: Keysight N9927-90020 User’s Guide...

  • Page 574: How To Set Time

    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 N9927-90020 User’s Guide...

  • Page 575: Scale

    Offset values are limited to +/- 100 dB. Averaging Averaging helps to reduce the effects of random noise on a measurement. The more measurements that are averaged, the greater the amount of noise reduction. Averaging is allowed for all pulse measurements. Keysight N9927-90020 User’s Guide...

  • Page 576: How To Set Averaging

    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 N9927-90020 User’s Guide...

  • Page 577: How To Set Single Or Continuous

    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 N9927-90020 User’s Guide...
  • Page 578 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 N9927-90020 User’s Guide...
  • Page 579 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 N9927-90020 User’s Guide...

  • Page 580: 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 700. Keysight N9927-90020 User’s Guide...

  • Page 581: 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 N9927-90020 User’s Guide...

  • Page 582: 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 N9927-90020 User’s Guide...

  • Page 583: How To Enable Auto Analysis

    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 N9927-90020 User’s Guide...

  • Page 584: 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 N9927-90020 User’s Guide...
  • Page 585 Keysight Handheld Analyzers N99xxA User’s Guide 24 VVM (Vector Voltmeter) Mode - Option 308 VVM Mode (Option 308) measures the electrical length of cables and other devices. The 1-Port Cable Trimming and 2-Port Transmission measurement displays the electrical length in both Magnitude and Phase.
  • Page 586 VVM (Vector Voltmeter) Mode - Option 308 Procedures “1-Port Cable Trimming Measurements ” on page 593 “2-Port Transmission Measurements” on page 595 “A/B and B/A Measurements” on page 597 Keysight N9927-90020 User’s Guide...

  • Page 587: 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 24-2 Typical 8508A measurement configuration –as shown in the 8508A manual. The above block diagram requires an external source and directional coupler to measure the electrical length of a DUT or cable to be trimmed.

  • Page 588: Vvm 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 N9927-90020 User’s Guide...

  • Page 589: How To Set Resolution

    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 N9927-90020 User’s Guide...

  • Page 590: How To Set Output Power

    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 N9927-90020 User’s Guide...

  • Page 591: 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 N9927-90020 User’s Guide...

  • Page 592: How To Select Zeroing

    — 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 N9927-90020 User’s Guide...

  • Page 593: 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 N9927-90020 User’s Guide...
  • Page 594 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 N9927-90020 User’s Guide...

  • Page 595: 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 N9927-90020 User’s Guide...
  • Page 596 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 N9927-90020 User’s Guide...

  • Page 597: 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 N9927-90020 User’s Guide...
  • Page 598 VVM (Vector Voltmeter) Mode - Option 308 A/B and B/A Measurements Keysight N9927-90020 User’s Guide...
  • Page 599 Keysight Handheld Analyzers N99xxA User’s Guide 25 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 600: 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 215. Keysight N9927-90020 User’s Guide...

  • Page 601: 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 N9927-90020 User’s Guide...

  • Page 602: 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 N9927-90020 User’s Guide...

  • Page 603: Step 3: Select Lan Address Of Erta Partner

    — 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 N9927-90020 User’s Guide...

  • Page 604: Step 5: Measure Jumper Cables

    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 N9927-90020 User’s Guide...
  • Page 605 DUT measurements (default = Auto). — Press Done to exit the Connection Wizard. — On the Receiver unit, press Primary ERTA Partnership. The Source unit enters ERTA mode as the secondary. Keysight N9927-90020 User’s Guide...

  • Page 606: Configure Measurement Settings

    R or B measurements. Figure 25-2 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 N9927-90020 User’s Guide...

  • Page 607: 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 N9927-90020 User’s Guide...

  • Page 608: 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 N9927-90020 User’s Guide...

  • Page 609: Am/Fm Metrics (Sa Only And Option 355)

    Keysight Handheld Analyzers N99xxA User’s Guide 26 AM/FM Metrics (SA Only and Option 355) The FieldFox assumes you have manually set up the CF, span, and amplitude settings. Refer to Chapter 9, “SA (Spectrum Analyzer) Mode (Option 233–Mixed Analyzers).” In this Chapter “Using AM/FM Metrics”...
  • Page 610 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 N9927-90020 User’s Guide...
  • Page 611 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 N9927-90020 User’s Guide...

  • Page 612: How To Set Up Am/Fm Metrics

    “Tune & Listen (AM/FM)” on page 181. Metrics are displayed in the AM/FM Modulation Metrics table on the FieldFox. For AM and FM Metrics examples, refer to Figure 26-1 through Figure 26-8 on page 621. Keysight N9927-90020 User’s Guide...
  • Page 613 AM/FM Metrics (SA Only and Option 355) Using AM/FM Metrics Figure 26-1 AM Metrics - Example 1 Keysight N9927-90020 User’s Guide...
  • Page 614 AM/FM Metrics (SA Only and Option 355) Using AM/FM Metrics Figure 26-2 AM Metrics - Example 2 Keysight N9927-90020 User’s Guide...
  • Page 615 AM/FM Metrics (SA Only and Option 355) Using AM/FM Metrics Figure 26-3 FM Metrics - Wide band Example Keysight N9927-90020 User’s Guide...

  • Page 616: Sinad And Thd Calculations

    Refer to Figure 26-5 on page 617. — For more on calculations, refer to “Overview of Measurement Types” on page 609. — See also, https://www.keysight.com/us/en/assets/7018-04493/application-notes/ 5991-4913.pdf. Figure 26-4 Audio Waveform with FFT Calculations Keysight N9927-90020 User’s Guide...
  • Page 617 AM/FM Metrics (SA Only and Option 355) SINAD and THD Calculations Figure 26-5 SINAD and THD Results - Example 1 Keysight N9927-90020 User’s Guide...
  • Page 618 AM/FM Metrics (SA Only and Option 355) SINAD and THD Calculations Figure 26-6 SINAD and THD Results - Example 2 Keysight N9927-90020 User’s Guide...

  • Page 619: 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 620 “Test Tone Not Found - Corrected Example” on page 621. Keysight N9927-90020 User’s Guide...

  • Page 620: Test Tone Not Found - Example

    — 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 26-7 Test Tone Not Found - Example Keysight N9927-90020 User’s Guide...

  • Page 621: Test Tone Not Found - Corrected Example

    — FM algorithm identifies the side lobes — The algorithm matches the modulation envelope to the mathematically calculated FM modulation or distortion patterns Figure 26-8 Test Tone Not Found - Corrected Example Keysight N9927-90020 User’s Guide...
  • Page 622 AM/FM Metrics (SA Only and Option 355) Interpreting AM/FM Metrics Error Messages Keysight N9927-90020 User’s Guide...

  • Page 623: Channel Scanner (Option 312)

    Keysight Handheld Analyzers N99xxA User’s Guide 27 Channel Scanner (Option 312) In this Chapter: “Using Channel Scanner” on page 624 “How to Set Up Channel Scanner” on page 625 “Field Strength Measurements” on page 642 — “Using the Antenna/Cable Editor” on page 648 —...

  • Page 624: Using Channel Scanner

    Data Logging. Record GPS stamped data measurements — Define measurement interval by time — Replay files on Google Maps or or distance Google Earth — Show results in spectrogram Figure 27-1 Display Example: Measure 5 Channels Spaced 2 MHz Apart Keysight N9927-90020 User’s Guide...

  • Page 625: How To Set Up Channel Scanner

    Indoor Map Data Logging. — Record (Outdoor Logging) or — Play (If you have previously stored data recordings.) or — View (Option 312 only) a. To set the Record Settings (Outdoor Mapping only)—then choose: — Meas Interval Keysight N9927-90020 User’s Guide...
  • Page 626 — Then File Type — KML (default) or — CSV — Then Save Log File. — Then Recall Log File. — Auto Save (default = OFF) — Then Back c. Optional: Press Indoor Map Data Logging then Keysight N9927-90020 User’s Guide...
  • Page 627 (e.g., “Data 1”). When disabled, labels are not displayed for the map data points. Sets the type of icon that is used to display a map’s Icons data points (default = Flag). Flag Point Line Keysight N9927-90020 User’s Guide...

  • Page 628: How To Define A Channel And Use Channel Scanner

    “Step 4: Enable Data Logging and Record Results” on page 636 — “Step 5: Save the Log Results:” on page 639 — “Step 6: Import and Play back KML Files into 3rd Party Software (Example: Google Earth with Animation Tool)” on page 641 Keysight N9927-90020 User’s Guide...

  • Page 629: Step 1A: Scan Mode: Range Channel Defined

    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 N9927-90020 User’s Guide...

  • Page 630: Step 1B: Scan Mode: Custom List Channel Defined

    1. Define some channels: Press Measure > Scan Mode > Custom List 2. Press Edit Custom List and modify table items: — Add table rows — Then for each row: — Edit Center Frequency (CF) — Edit Integration BW (IBW) Keysight N9927-90020 User’s Guide...

  • Page 631: Step 2: Select Display Type

    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 N9927-90020 User’s Guide...
  • Page 632 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 27-5 Bar Chart Vertical Display Type Figure 27-6 Bar Chart Horizontal Display Type Keysight N9927-90020 User’s Guide...
  • Page 633 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 27-7 Channel Power Display Type Figure 27-8 Strip Chart Display Type Keysight N9927-90020 User’s Guide...
  • Page 634 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 27-9 Strip Chart Overlay Display Type Figure 27-10 Scan & Listen Display Type Keysight N9927-90020 User’s Guide...

  • Page 635: Step 3. Modify Scale And The Display Color Bar Settings

    3. And, then press System > Display > Display Colors, to set Indoor, Outdoor, or other display colors. See also Chapter 27, “Channel Scanner (Option 312)”, on page 623. Figure 27-11 Outdoor Display Colors Keysight N9927-90020 User’s Guide...

  • Page 636: Step 4: Enable Data Logging And Record Results

    Log Results:” on page 639. — User specifies how often results are stored. — Time: Store results every “n” seconds — Distance: Store results every “n” meters. GPS must be enabled to store results by distance. Keysight N9927-90020 User’s Guide...
  • Page 637 7. Press Done Learn more, refer to Chapter 16 Mapping and “Option 352 Outdoor Maps Setup Procedure” on page 476 “Setting up Data Logging” on page 484. See also, Chapter 32, “File Management.” Keysight N9927-90020 User’s Guide...
  • Page 638 (Applies to Option 312 Only) 2. Then choose: — Zoom to zoom in on spectrogram time record results. — Red Limit to change the color bar. — Blue Limit to change the color bar. 3. Press Exit to exit view. Keysight N9927-90020 User’s Guide...

  • Page 639: Step 5: Save The Log Results

    Measurements are stored automatically according to the specified time or distance interval values. 3. When done press Stop. The files save dialog is displayed. Edit the file name where the file results will be stored. 4. Press Done Keysight N9927-90020 User’s Guide...

  • Page 640: Optional Step: Indoor Map Data Logging

    Logging” on page 487. 6. Repeat steps as necessary. 7. When done press Back or Esc. The files save dialog is displayed. Edit the file name where the file results will be stored as a *.kdat file. Keysight N9927-90020 User’s Guide...

  • Page 641: Step 6: Import And Play Back Kml Files Into 3Rd Party Software (Example: Google Earth With Animation Tool)

    — 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 27-14 Importing a KML File Into Google Earth Keysight N9927-90020 User’s Guide...

  • Page 642: Field Strength Measurements

    Figure 27-15 Overview of Field Strength for Channel Scanner (See also, Figure 27-16 on page 643.) FieldFox Field Strength Channel Scanner Refer to Figure 27-16 on page 643 Keysight N9927-90020 User’s Guide...
  • Page 643 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 27-16 Editing Antenna Factor Units (See also, Figure 27-15 on page 642.) Keysight N9927-90020 User’s Guide...

  • Page 644: Field Strength Measurements

    Use Auto and Disabled 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 N9927-90020 User’s Guide...
  • Page 645 “Set File Type and Select Device” on page 784. When finished, press Back to return to the previous menu. Field Strength Correction Examples Refer to Figure 27-18 on page 646 Figure 27-19 on page 647. Keysight N9927-90020 User’s Guide...
  • Page 646 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 27-18 Apply Corrections Set to Auto Keysight N9927-90020 User’s Guide...
  • Page 647 Channel Scanner (Option 312) How to Set Up Channel Scanner Figure 27-19 Apply Corrections Set to Disabled Keysight N9927-90020 User’s Guide...

  • Page 648: Using The Antenna/Cable Editor

    – Use this setting for greatest accuracy (Res BW = 1500). — Medium – This is the default setting (Res BW = 450). — Speed – When you want the fastest possible measurement (Res BW = 150). Keysight N9927-90020 User’s Guide...

  • Page 649: Noise Figure Mode (Option 356 - Cpu2 Only)

    Keysight Handheld Analyzers N99xxA User’s Guide 28 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 650 Example of Jitter Uncertainty (21 points)—with Uncertainty Bars. Learn more “How to use Auto-Integration” on page 690. Figure 29-2 Example of Jitter Uncertainty (21 points)—with Uncertainty Bars Disabled. Learn more in “How to use Auto-Integration” on page 690. Keysight N9927-90020 User’s Guide...
  • Page 651 “All about Markers” on page 700 “All about Limit Lines” on page 715 “All about Trace Math” on page 724 “All about Scale Settings” on page 726 Chapter 29, “Data Analysis Features.” Chapter 32, “File Management.” Keysight N9927-90020 User’s Guide...

  • Page 652: 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 N9927-90020 User’s Guide...
  • Page 653 (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 N9927-90020 User’s Guide...
  • Page 654 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 N9927-90020 User’s Guide...
  • Page 655 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 N9927-90020 User’s Guide...

  • Page 656: 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 690.) — Max. Time/Pt. (Available when Mode = Auto) or — Time/Pt. (available when Mode = Fixed) Keysight N9927-90020 User’s Guide...

  • Page 657: 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 N9927-90020 User’s Guide...
  • Page 658 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 N9927-90020 User’s Guide...
  • Page 659 ——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 N9927-90020 User’s Guide...
  • Page 660 — 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 664. Keysight N9927-90020 User’s Guide...
  • Page 661 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 N9927-90020 User’s Guide...
  • Page 662 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 N9927-90020 User’s Guide...
  • Page 663 ——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 N9927-90020 User’s Guide...

  • Page 664: How To Use Dut Measurement Setups

    Figure 30-1 on page 665 — Setting > Type [Downconverter], see Figure 30-2 on page 666 — Setting > Type [Upconverter], see Figure 30-3 on page 667 — Setting > Type [Multi-Stage Converter], see Figure 30-4 on page 668 Keysight N9927-90020 User’s Guide...
  • Page 665 ––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 N9927-90020 User’s Guide...
  • Page 666 ––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 N9927-90020 User’s Guide...
  • Page 667 (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 N9927-90020 User’s Guide...
  • Page 668 ––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 N9927-90020 User’s Guide...

  • Page 669: Dut Type And Frequency Context

    Figure 30-5 on page 670 — Setting Meas Setup > > Next > IF (DUT Out), see Figure 30-6 on page 671 — Setting Meas Setup > > Freq Context [IF], see Figure 30-7 on page 672 Keysight N9927-90020 User’s Guide...
  • Page 670 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 N9927-90020 User’s Guide...
  • Page 671 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 N9927-90020 User’s Guide...
  • Page 672 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 N9927-90020 User’s Guide...

  • Page 673: Frequency Range And Frequency Context

    — 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 N9927-90020 User’s Guide...

  • Page 674: Dut Type Loss Compensation

    For all sideband cases you can enable or disable Loss (device loss) and Temperature (device temperature). Refer to Figure 30-9 on page 675. This section contains the following: — Setting Meas Setup > > Loss Compensation > Before DUT After DUT, see Figure 30-9 on page 675. Keysight N9927-90020 User’s Guide...
  • Page 675 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 N9927-90020 User’s Guide...

  • Page 676: 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 N9927-90020 User’s Guide...

  • Page 677: Resolution Bandwidth (Res Bw)

    This setting could impact the accuracy of the measurement. See Specifications https://www.keysight.com/us/en/assets/7018-03314/data-sheets/5990-97 83.pdf. Alignments The Noise Figure mode requires alignment types: amplitude. Refer to the SA chapter’s “Alignments” on page 215 for information on all alignments. Keysight N9927-90020 User’s Guide...

  • Page 678: 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 N9927-90020 User’s Guide...

  • Page 679: Electromagnetic Interference

    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 N9927-90020 User’s Guide...
  • Page 680 This is normally the case for specified values when the overall mismatch is due to several interacting impedance transitions within the device. 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://www.keysight.com/us/en/assets/7018-01152/application-notes/5988-92 15.pdf.
  • Page 681 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 N9927-90020 User’s Guide...
  • Page 682 . 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 N9927-90020 User’s Guide...

  • Page 683: 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 30-10 on page 684. Keysight N9927-90020 User’s Guide...

  • Page 684: 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 787. Keysight N9927-90020 User’s Guide...

  • Page 685: Preamplifier (*.Amp) Files

    — 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 787. Keysight N9927-90020 User’s Guide...

  • Page 686: 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 N9927-90020 User’s Guide...

  • Page 687: 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 N9927-90020 User’s Guide...
  • Page 688 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 N9927-90020 User’s Guide...
  • Page 689 (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 N9927-90020 User’s Guide...

  • Page 690: How To Use Auto-Integration

    694. 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 691: 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 N9927-90020 User’s Guide...
  • Page 692 > 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 N9927-90020 User’s Guide...
  • Page 693 Noise Figure Mode (Option 356 – CPU2 Only) How to use Auto-Integration Figure 30-13 Example of Jitter Uncertainty (401 points)—with Uncertainty Bars Keysight N9927-90020 User’s Guide...
  • Page 694 Noise Figure Mode (Option 356 – CPU2 Only) How to use Auto-Integration Figure 30-14 Example of Jitter Uncertainty (401 points)—without the Uncertainty Bars Keysight N9927-90020 User’s Guide...
  • Page 695 (i.e, blue circles around points where the jitter goal was exceeded). — Press to toggle Jitter Warning OFF ON (default = ON) Figure 30-15 Example of Jitter Uncertainty—with Jitter Uncertainty Trace Keysight N9927-90020 User’s Guide...

  • Page 696: Other Features Available

    — Display Lines - For information on using Limit Lines, refer to the SA chapter’s section, “Display Line” on page 224. — Scale Settings – For information on using Autoscale, Autoscale All, and Scale settings, “All about Scale Settings” on page 726. Keysight N9927-90020 User’s Guide...

  • Page 697: 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 30-16 Example of an invalid measurement Keysight N9927-90020 User’s Guide...
  • Page 698 Noise Figure Mode (Option 356 – CPU2 Only) Troubleshooting Keysight N9927-90020 User’s Guide...
  • Page 699 Keysight Handheld Analyzers N99xxA User’s Guide 29 Data Analysis Features The following features can be used after a measurement to analyze the results. In this Chapter “How to create Markers” on page 700 “How to move a Marker after it is created” on page 700 “About Delta Markers”...

  • Page 700: Data Analysis Features

    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 706. Keysight N9927-90020 User’s Guide...

  • Page 701: About Delta Markers

    Peak search functions can be performed using delta markers. Figure 29-2 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 N9927-90020 User’s Guide...

  • Page 702: How To Create A Delta Marker

    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 N9927-90020 User’s Guide...

  • Page 703: How To Display The Marker Table

    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 318. Keysight N9927-90020 User’s Guide...

  • Page 704: How To Create Uncoupled Markers

    X-axis location on the specified trace. Learn more about IQA Traces in “Trace Display States (IQA Mode)” on page 321. Learn more about SA Traces in “Trace Display States (SA Mode)” on page 212. Keysight N9927-90020 User’s Guide...

  • Page 705: How To Move An Iq And Sa Mode Marker Between Traces

    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 N9927-90020 User’s Guide...

  • Page 706: 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 Keysight N9927-90020 User’s Guide...
  • Page 707 — If you first enter Negative, then Positive values, it may be necessary to press Marker, then More, then Markers All Off. Figure 29-4 S21 of a filter with BW Markers and associated readout values. The search criteria is -3 dB. Keysight N9927-90020 User’s Guide...
  • Page 708 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 N9927-90020 User’s Guide...
  • Page 709 When markers are set to Normal, Mkr5 and Mkr6 can be used to find the minimum and or maximum values between Mkr1 and Mkr2 (using Mkr5) and Mkr3 and Mkr4 (using Mkr6). Refer to Figure 29-6 on page 711. Keysight N9927-90020 User’s Guide...
  • Page 710 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 N9927-90020 User’s Guide...

  • Page 711: 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 N9927-90020 User’s Guide...
  • Page 712 Peak Search, including the use of peak criteria rules. See also, “Using Markers (IQA)” on page 316. ——Delta Ref Fixed Enables or disables the delta reference fixed marker. Keysight N9927-90020 User’s Guide...

  • Page 713: 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. Keysight N9927-90020 User’s Guide...

  • Page 714: 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 225. Keysight N9927-90020 User’s Guide...

  • Page 715: 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 716. — Upper/Lower – Press Edit to toggle between the following: Keysight N9927-90020 User’s Guide...

  • Page 716: 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 N9927-90020 User’s Guide...

  • Page 717: How To Build Limit Lines From A Trace

    2. Then Options. 3. Then choose from the following: — Beep — On Pass Audible beep sounds when a sweep passes. — On Fail Audible beep sounds when a sweep fails. — No audible beep sounds. Keysight N9927-90020 User’s Guide...

  • Page 718: How To Save And Recall Limits

    2. Create and save a *.csv file to your PC using these values using parameters defined in Table 29-1 and similar to the example in Figure 29-8 on page 721. 3. Copy the limit line *.csv file from your PC to a CD card or USB storage device. Keysight N9927-90020 User’s Guide...
  • Page 719 Frequency Amplitude These must be written literally as “Frequency” and “Amplitude”. 5000000000 –70 10000000000 –70 20000000000 –80 30000000000 –80 #Comment 2 (Example) Any cells that begin with # are ignored by the FieldFox. Keysight N9927-90020 User’s Guide...
  • Page 720 Any cells that begin with # are ignored by the FieldFox. Enabled TRUE Fixed/Relative Fixed Lower/Upper Upper LimitLines Frequency Amplitude 5000000000 –50 10000000000 –50 20000000000 –50 30000000000 –50 #Comment 4 (Example) Any cells that begin with # are ignored by the FieldFox. Keysight N9927-90020 User’s Guide...
  • Page 721 Data Analysis Features All about Limit Lines Figure 29-8 Example: Table Limit Line Formatting in actually LimitExample.csv Keysight N9927-90020 User’s Guide...
  • Page 722 Data Analysis Features All about Limit Lines Figure 29-9 Example: Recalled Limit Line Formatting LimitExample.csv Keysight N9927-90020 User’s Guide...

  • Page 723: Display Line (I/Q, Nf, And Sa Modes Only)

    Display Line OFF ON 2. 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 N9927-90020 User’s Guide...

  • Page 724: All About Trace Math

    A trace is a series of measurement data points that are connected to form a line. This ‘live’ data trace is updated as data points are measured. A memory trace is a live trace that has been stored in the FieldFox volatile memory. It then becomes static, meaning it is not updated with measurements.

  • Page 725: 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 N9927-90020 User’s Guide...

  • Page 726: 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 N9927-90020 User’s Guide...

  • Page 727: Averaging (Cat, Na, Power Meter, Channel Scanner, And Pulse Measurement Modes Only)

    727. How to set Trace Averaging 1. Press BW 2. 2. Then choose from: — Channel Scanner: Average OFF ON change to ON to enable averaging and then set the current count, using Average Count softkey. Keysight N9927-90020 User’s Guide...
  • Page 728 >1 to enable/set averaging (Default = 1 (OFF)). 3. Enter a value using the numeric keypad. Enter 1 for NO averaging. 4. Press Enter. 5. While Trace Averaging is in process, press Sweep 3 then Restart to restart the averaging at 1. Keysight N9927-90020 User’s Guide...
  • Page 729 Keysight Handheld Analyzers N99xxA User’s Guide 30 System Settings In this Chapter “Run/Hold” on page 730 “Preset” on page 731 “User Preset” on page 732 “Audio (Volume) Control” on page 733 “Display (Settings)” on page 733 “Display Brightness” on page 733 “Display Colors”...

  • Page 730: System Settings Run/Hold

    NOT sweep, but holds the display results of the last sweep that was performed. Use Hold to conserve battery power or to allow you to save or analyze the results of a specific measurement sweep. The current sweep mode is shown on the screen as: — Continuous Keysight N9927-90020 User’s Guide...

  • Page 731: How To Perform A Single Sweep While In Hold

    2. Then choose one of the following: — Preset Returns ALL Modes to the factory default settings. — Mode Preset Returns only the current Mode to the factory default settings. The current settings for all other Modes remain. Keysight N9927-90020 User’s Guide...

  • Page 732: User Preset

    UserPreset.sta remain stored on the FieldFox. When User Preset is OFF, you can also set the Startup Mode preference that determines which mode will be visible after powering ON. Learn more in “Startup Mode” on page 748. Keysight N9927-90020 User’s Guide...

  • Page 733: Audio (Volume) Control

    Change the brightness of the background. How to set Display Brightness 1. Press System 7 > Display Brightness > 2. Use the arrows, the rotary knob, or numeric keypad to enter a value between 0 and 100%. Keysight N9927-90020 User’s Guide...

  • Page 734: Display Colors

    A custom title can be made to appear in the upper-left corner of the FieldFox screen. 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 Keysight N9927-90020 User’s Guide...

  • Page 735: How To Add Or Edit A Title

    Full Screen Mode Full Screen Mode maximizes the display of trace. The screen annotations and the soft keys are removed. 1. Press System 7 2. Then Full Screen To Exit full screen Mode, press any key. Keysight N9927-90020 User’s Guide...

  • Page 736: Utilities

    Mixed Analyzers)).” — Freq Extnd – opens a menu of softkeys that enables frequency extender feature, for use with OML heads. Refer to “How to view and change the Frequency Extender (Freq Extnd) Settings” on page 737. Keysight N9927-90020 User’s Guide...

  • Page 737: How To View And Change The Frequency Extender (Freq Extnd) Settings

    (requires ≥A.12.40 firmware) If you upgrade your FieldFox firmware to ≥A.12.40, but find you are unable to adjust the LO power level to –12 dBm, refer to “Erase User Data” on page 773. Keysight N9927-90020 User’s Guide...
  • Page 738 Port 1 access to the internal source. But, automatic alignments of the SA Receiver still remain active using an internal path for the source. — Port 2 is where the head delivers the downconverted signal to the SA receiver. Keysight N9927-90020 User’s Guide...
  • Page 739 The other non-SA supported modes do not allow viewing or editing of the corrections, but they all share the same corrections. Therefore, any manual changes to the corrections (using SA via Edit SA) are then used by other supported modes (RTSA/IQA/OTA) as well. Keysight N9927-90020 User’s Guide...
  • Page 740 ——No to leave the current correction table values and edit just some of the entries. To select a setting/value to edit, use the numeric keypad, arrows, or rotary knob to change the value. Keysight N9927-90020 User’s Guide...
  • Page 741 (*csv). (Default = Internal. Else press, SD Card or USB.) See also, Chapter 13, “Over–the–Air Measurements (OTA) – LTE FDD Option 370, LTE TDD Option 371, 5GTF Option 377 (CPU2 Only).” Figure 30-1 FieldFox with OML Downconverter Keysight N9927-90020 User’s Guide...
  • Page 742 System Settings Utilities Figure 30-2 FieldFox Frequency Converter High Sensitivity (ON: Narrow—Lowest Noise Floor—Displayed) Figure 30-3 FieldFox Frequency Extender Select Frequency Extender Head Keysight N9927-90020 User’s Guide...
  • Page 743 System Settings Utilities Figure 30-4 FieldFox Frequency Converter Corrections Table Figure 30-5 FieldFox Frequency Converter (Freq Extend) On And Corrections (eCorr) Enabled (SA mode shown; other compatible modes are similar.) Keysight N9927-90020 User’s Guide...

  • Page 744: Preferences

    — Also, refer to: “Audio (Volume) Control” on page 733 “Display (Settings)” on page 733. Quick Settings Table All preferences can be set from the Quick Settings table. They are immediately saved as Preferences when Done is pressed. Keysight N9927-90020 User’s Guide...

  • Page 745: How To View And Change Preference Quick Settings

    “GNSS (GPS+) and GPS” on page 758 “Frequency Reference Source” on page 763 “File folders” on page 752 “Alpha Numeric Editing” on page 752 (i.e., ABC/Qwerty keyboard styles) “File Saving Naming Options” on page 752 “Quick Save Editing” on page 752 Keysight N9927-90020 User’s Guide...

  • Page 746: Save And Reset Preferences

    747. Global Settings (Overview) Choose the Global Settings values (Language, Batter Saver, and Startup Mode). See also “Quick Settings Table” on page 744. How to select Global Settings: 1. Press System 7 > Preferences Preferences > Keysight N9927-90020 User’s Guide...

  • Page 747: How To Select A Language

    Quick Settings table. This setting remains until you change it again. The FieldFox internal temps will run 2°C – 5°C cooler with the Battery Saver on (the temperature range is dependent on the ambient temp). Keysight N9927-90020 User’s Guide...

  • Page 748: How To Set Battery Saver

    How to select Display values: 1. Press System 7 > Preferences Preferences > 2. Then use arrow softkeys ( ) or the knob to select Display 3. Then Edit for each of the following: — Display Colors — Indoor (default) Keysight N9927-90020 User’s Guide...

  • Page 749: Audio

    ) or the knob to select Audio. 3. Then Edit for each of the following: — Mute — On — Off (default) 4. Volume — 0 to 100 (default is 50) 5. Then Done Edit (for each change in setting) Keysight N9927-90020 User’s Guide...

  • Page 750: Date And Time

    ) or the knob to select GPS. 3. Then Edit for each of the following: — GPS State — Off (default) — Internal — External — Elevation Unit — Meters (default) — Feet — Inches — GPS Sync Lock Keysight N9927-90020 User’s Guide...

  • Page 751: Frequency Reference

    USB GPS device at the USB connectors. — Internal - Enable GPS using Option 307 – Built-in GPS. Connect a GPS antenna to the top-panel GPS connector. Learn more about additional GPS antenna accessories at http://www.keysight.com/find/fieldfox. Internal is set Keysight N9927-90020 User’s Guide...

  • Page 752: File Folders

    790. Quick Save Editing Enables/disables the Quick Save feature. Quick Save saves any files you have set to On in the Group Save File Types preferences. Refer to “Group Save File Types Editing” on page 753. Keysight N9927-90020 User’s Guide...

  • Page 753: Group Save File Types Editing

    4. Press Edit then 5. Press ’file type’ Data (.xxx) to enable/disable the data file type (default = Off). (e.g., Image (.png) ON OFF, CSV Data (.csv) ON OFF, etcetera). Keysight N9927-90020 User’s Guide...

  • Page 754: Group Save File Types

    Units” on page How to select CAT distance units: 1. Press System 7 > Preferences Preferences > 2. Then Edit for each of the following: — Distance Units: — Meters (default) — Feet — Inches — TDR Sweep: Keysight N9927-90020 User’s Guide...

  • Page 755: Cat/Na

    2. Then use arrow softkeys or the knob to select SA 3. Then Edit for each of the following: — Individual measurement Control — On (Default - recommended) — Off — ADC Over Range Warn Emphasis Keysight N9927-90020 User’s Guide...
  • Page 756 ADC Over Range with a Beeping sound. — Big Font – this option makes the ADC Over Range warning have a larger text, no sound with this option. 4. Then Done Edit (after changing setting) Keysight N9927-90020 User’s Guide...

  • Page 757: Discrete Colors Softkey Menu

    FieldFox Configuration Guide at: https://www.keysight.com/us/en/assets/7018-03329/configuration-guides/ 5990-9836.pdf. How to view the Installed Options 1. Press System 7 > System Configuration System Configuration > > Options (Licensing) 2. Then Show Options The currently installed options are listed. Keysight N9927-90020 User’s Guide...

  • Page 758: How To Install Options (License File)

    SMA (f) connector. This connector has a 3.3 VDC bias voltage which is switched ON when GPS is set to Internal. This system is designed for use with an active antenna such as the Keysight N9910X-825. Keysight N9927-90020 User’s Guide...

  • Page 759: How To Make Gps Settings

    — 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 760: Gps Status

    - 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 N9927-90020 User’s Guide...

  • Page 761: More Gnss And Gps Settings

    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 N9927-90020 User’s Guide...

  • Page 762: Saving Data With Gps Enabled

    – Settable to: 3.5 VDC or 5 VDC. When the bias voltage is set to ON and when the GPS is set to Internal. This system was designed for an active antenna such as the Keysight N9910X-825 Saving Data with GPS Enabled GPS position and clock data are included when data is saved with the following files types: *.csv, *.SnP, State, State+Trace data save.

  • Page 763: Gnss And Gps Freq Ref Source Settings

    External frequency reference. Connect the 10 MHz External Reference to the Ref In/Trig In SMA (f) connector on the FieldFox top panel. The FieldFox may take up to 10 seconds to lock to a valid External Reference source Keysight N9927-90020 User’s Guide...

  • Page 764: Hold-Over Mode

    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 N9927-90020 User’s Guide...

  • Page 765: 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 766: Security Level

    This method of setting the Date and Time does NOT have the security restrictions of the other methods (listed below). This method will NOT set the correct Time Zone. You must do that using the manual method. See below. Keysight N9927-90020 User’s Guide...

  • Page 767: How To Manually Set Date And Time, Format, And Time Zone

    FieldFox screen will update accordingly. 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. Keysight N9927-90020 User’s Guide...

  • Page 768: How To Configure Lan Settings

    — DHCP - IP Address is assigned dynamically. If your server supports this feature, the IP Address for the FieldFox is assigned each time it is started. — Static - Set the IP Address manually. The Address remains until you change it. Keysight N9927-90020 User’s Guide...

  • Page 769: Power On

    Power ON > > 2. Then choose from the following: — Auto The FieldFox will power ON when the DC Adapter is inserted. — Manual The FieldFox will power ON only when the power button is pressed. Keysight N9927-90020 User’s Guide...

  • Page 770: Fieldfox Package Installer

    From the initial Installer menu: 1. Press Utility > Backup Data A message is displayed: “Choose backup file location.” 2. Then choose either SD Card or USB A progress bar and a message is displayed: “Saving user data…” Keysight N9927-90020 User’s Guide...

  • Page 771: How To Restore Files

    A progress bar and a message is displayed: “Restoring user data…” Service Diagnostics — The Service diagnostics menu is generally used to display service-related information. To access these menu items, press System 7 then Service Diagnostics. Keysight N9927-90020 User’s Guide...

  • Page 772: System Information

    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 Appendix C: “Instrument Calibration”.

  • Page 773: Erase User Data

    Erase User Data IMPORTANT! The process in this section erases all User Data from the FieldFox. Before proceeding, Keysight strongly recommends that you back up all of your User Data to an external storage device. refer to “How to backup files” on page 770.
  • Page 774 System Settings Service Diagnostics Keysight N9927-90020 User’s Guide...

  • Page 775: 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 776 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 777 Keysight Handheld Analyzers N99xxA User’s Guide 32 File Management The FieldFox can save any of the following types of files: — Current settings and calibration — Trace data (*.csv, *.S1P, *.S2P) — Picture of the FieldFox screen In addition, files can be saved to the internal memory, a USB Flash drive, or a standard SD card.D...

  • Page 778: File Management

    File Type to save and Device (Internal, USB, Storage Card) to which the file is saved. Learn how to change these settings in “Set File Type and Select Device” on page 784. 4. Then use the labeler to specify a filename. Keysight N9927-90020 User’s Guide...
  • Page 779 VSA software to capture and record your data as MATLAB files (*.mat). Learn more about FieldFox and 89600 VSA software, refer to Chapter 17, “Remote Server Mode (Requires CPU2 and SA Hardware/SA Option 233)” and to http://rfmw.em.keysight.com/wireless/helpfiles/89600B/WebHelp/89600 .htm. Keysight N9927-90020 User’s Guide...
  • Page 780 File Management Saving and Recalling Files Figure 32-1 I/Q Analyzer Mode (IQA) MATLAB File Save Keysight N9927-90020 User’s Guide...

  • Page 781: How To Use The Fieldfox Labeler

    — 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 752. Keysight N9927-90020 User’s Guide...

  • Page 782: How To Move The Cursor

    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 N9927-90020 User’s Guide...

  • Page 783: Recall Files

    4. 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 N9927-90020 User’s Guide...

  • Page 784: How To Move A File

    ONLY from the \UserData folder. — SD Card Saves/Recalls/Moves (Copies) files to/from the SD card (not included), inserted in the card slot. See “Take the FieldFox Tour” on page 48. Only the root folder is available. Keysight N9927-90020 User’s Guide...

  • Page 785: How To Set File Type

    ——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 N9927-90020 User’s Guide...

  • Page 786: About Snp Files

    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 787: What Data Processing Functions Are Included In Saved Snp Data

    Selects a file or files to sort, copy, or delete. — Sort — Sort by Name Sorts the displayed list of files by name. — Sort by Date Sorts the displayed list of files by date. — Copy Select a file or files to copy. Keysight N9927-90020 User’s Guide...
  • Page 788 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 N9927-90020 User’s Guide...

  • Page 789: Manage Folders

    Edit Keywords The preselected keywords (FILE, SITE, and so forth) can be edited to meet your specific needs. Your keywords will remain in the FieldFox until you change them. Keywords are limited to 30 characters. Keysight N9927-90020 User’s Guide...

  • Page 790: How To Edit Keywords

    File–Save Naming Options are settings are persistent through Mode changes, Preset, and power cycling (e.g., Prefix, Auto Append). This section contains the following sections: — “How to edit the Prefix and Suffix (Auto Append)” on page 791. Keysight N9927-90020 User’s Guide...

  • Page 791: How To Edit The Prefix And Suffix (Auto Append)

    — Then choose from the following: ——Select to add the cursor character to the end of the Prefix. ——Back Space to delete the last character(s) from the end of the prefix. ——Shift to toggle between capital letters and lower case letters. Keysight N9927-90020 User’s Guide...

  • Page 792: How To Move The Cursor

    FieldFox until it is changed (i.e., with subsequent increments). — Press Cancel to close the labeler without saving changes. How to enable/disable the Prefix/Suffix (persistent) 1. Press Save/Recall 9 > More > Prefix Suffix 2. Then Prefix/Suffix Keysight N9927-90020 User’s Guide...

  • Page 793: How To Enable/Disable Auto Append (Suffix)

    If necessary, edit the filenames to be printed. d. 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 N9927-90020 User’s Guide...
  • Page 794 File Management Press Printing Keysight N9927-90020 User’s Guide...

  • Page 795: Working With The Lithium-Ion Battery Viewing The Battery Charge Status

    Keysight Handheld Analyzers N99xxA User’s Guide 33 Working with the Lithium-Ion Battery In this Chapter “Viewing the Battery Charge Status” on page 795 “Charging the Battery” on page 797 “Reconditioning Battery” on page 800 “Battery Care” on page 800 “Maximizing Battery Life” on page 800 “Lithium-Ion Battery Disposal”...

  • Page 796: 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 N9927-900020 User’s Guide...

  • Page 797: Charging The Battery

    Internal Charging with the AC/DC Adapter Read the safety information in “For the AC/DC Adapter” on page 806 Internal charging time for a fully depleted battery is approximately 4 hours with the FieldFox either ON or OFF. Keysight N9927-900020 User’s Guide...
  • Page 798 — 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 N9927-900020 User’s Guide...

  • Page 799: Using The External Battery Charger (N9910X-872)

    LED charge gauge is being renewed. See “Reconditioning Battery” on page 800 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 N9927-900020 User’s Guide...

  • Page 800: 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 N9927-900020 User’s Guide...

  • Page 801: 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 802 Working with the Lithium-Ion Battery Lithium-Ion Battery Disposal Keysight N9927-900020 User’s Guide...

  • Page 803: 34 Safety Considerations

    Keysight Handheld Analyzers N99xxA User’s Guide 34 Safety Considerations Keysight has designed and tested the FieldFox in accordance with IEC Publication 61010-1Safety Requirements for Electrical Equipment for Measurement, Control and Laboratory Use, and the FieldFox is supplied in a safe condition. The FieldFox is also designed for use in Installation Category II and pollution Degree 2 per IEC 61010-1.

  • Page 804: 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 805 Safety Considerations For the FieldFox Only Keysight approved accessories shall be used. Cleaning connectors with alcohol shall only be done with the instruments power cord removed, and in a well-ventilated area. Allow all residual alcohol moisture to evaporate and the fumes to dissipate prior to energizing the instrument.

  • Page 806: For The Ac/Dc Adapter

    Any interruption of the protective conductor inside or outside of the product is likely to make the product dangerous. Intentional interruption is prohibited. Keysight N9927-90020 User’s Guide...

  • Page 807: For The External Battery Charger (N9910X-872)

    The instrument can operate with mains supply voltage fluctuations up to ±10% of the nominal voltage. Samples of this product have been type tested in accordance with the Keysight Environmental Test Manual and verified to be robust against the environmental stresses of Storage, Transportation and End-use;...

  • Page 808: For The Battery

    High Capacity Lithium Battery (N9910X-876) Lithium battery (High Capacity): N9910X-876 (battery Keysight part number: 1420-0937) is used to provide power to a family of portable microwave test instruments produced by Keysight Technologies. Be sure to follow these safety warnings: External battery, U.S.
  • Page 809 For a Russian battery safety consideration translation, refer to Appendix E:, “Russian Battery Safety Translation.” The external battery is not rated for use in a wet location. Do not use the external battery in a wet location. Keysight N9927-90020 User’s Guide...

  • Page 810: 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 811 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 N9927-90020 User’s Guide...

  • Page 812: 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 N9927-90020 User’s Guide...

  • Page 813: Passive Protection

    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 N9927-90020 User’s Guide...

  • Page 814: 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 N9927-90020 User’s Guide...

  • Page 815: Passive Protection

    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 N9927-90020 User’s Guide...

  • Page 816: Environmental Requirements

    Familiarize yourself with each marking and its meaning before operating the instrument. All labels and symbols may not apply to the instrument. This symbol marks the standby position of the power line switch. This symbol marks the ON position of the power line switch. Keysight N9927-90020 User’s Guide...
  • Page 817 The UK conformity mark is a UK government owned mark. Products showing this mark comply with all applicable UK regulations. The Keysight email address is required by EU directives applicable to our product. The CSA mark is a registered trademark of the CSA International.
  • Page 818 EU DIRECTIVE and other National legislation. Please refer to www.keysight.com/go/takeback to understand your trade-in options with Keysight, in addition to product takeback instructions. China Restricted Substance Product Label. The EPUP (environmental protection use period) number in the center indicates the time period during which no hazardous or toxic substances or elements are expected to leak or deteriorate during normal use and generally reflects the expected useful life of the product.

  • Page 819: Battery Markings

    Keep battery away from excessive heat. Do not dispose of by burning. Taiwan recycling symbol. Korean Certification (KC) mark. India mark from the Bureau of Indian standards. IS 13252 is the equivalent India standard to IEC 60950-1. GOST, Russia’s safety and EMC mark. Keysight N9927-90020 User’s Guide...
  • Page 820 (CISPR 11, Clause 5). South Korean Certification (KC) mark. It includes the marking’s identifier code. Universal recycling symbol. This symbol indicates compliance with the China standard GB 18455-2001 as required by the China RoHS regulations for paper/fiberboard packaging. Keysight N9927-90020 User’s Guide...
  • Page 821 This symbol indicates frame or chassis terminal. This symbol indicates the presence of a laser device. This symbol identifies the Protective Conductor Terminal. This symbol indicates the equipment is protected throughout by double or reinforced insulation. Keysight N9927-90020 User’s Guide...

  • Page 822: Packaging Markings

    NOM Mark (Normality of Mexico) indicates that the product was tested by an accredited laboratory in Mexico and meets Mexico’s safety requirements. Japan’s safety and EMC compliance mark. China’s safety and EMC compliance mark. Taiwan’s safety and EMC compliance mark. Singapore’s safety mark. Keysight N9927-90020 User’s Guide...
  • Page 823 Operating instructions should be considered when operating the device. U.S. Energy efficiency rating Eurasian Conformity Mark indicating conformance to all technical regulations of the Eurasian Customs Union. UL component mark. Recognized in Canada and the United States. Operation for indoors only. Keysight N9927-90020 User’s Guide...
  • Page 824 Please refer to keysight.com/go/takeback to understand your Trade in options with Keysight in addition to product takeback instructions. Dispose of properly The UK conformity mark is a UK government owned mark. Products showing this mark comply with all applicable UK regulations.

  • Page 825: 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 826: Manufacturer's Declaration

    — Canada: CSA C22.2 No. 61010-1 — U.S.A.: UL std no. 61010-1 South Korean Class B EMC Declaration This equipment is Class B suitable for home electromagnetic environment and is suitable for use in all areas. Keysight N9927-90020 User’s Guide...

  • Page 827: Acoustic Statement (European Machinery Directive)

    Safety Considerations Certification and Compliance Statements Acoustic Statement (European Machinery Directive) Acoustic Noise Emission LpA <70 dB Operator position Normal operation position per ISO 7779 Keysight N9927-90020 User’s Guide...
  • Page 828 Safety Considerations Certification and Compliance Statements Keysight N9927-90020 User’s Guide...
  • Page 829 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 830 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 N9927-90020 User’s Guide...
  • Page 831 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: https://www.keysight.com/us/en/assets/7018-03314/data-sheets/5990-97 83.pdf.
  • Page 832 Specifications/Data Sheet Keysight N9927-90020 User’s Guide...

  • Page 833: How Often Should Calibrate My Instrument

    Connector Care. Learn more in “Connector Care Review” on page 829. 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 834: What Are My Choices Of Instrument Calibration

    Instrument Calibration What Are My Choices of Instrument Calibration? What Are My Choices of Instrument Calibration? The following types of instrument calibration are available from Keysight Technologies service center: Includes the test data from the calibration and the Keysight Calibration...
  • Page 835 Keysight Handheld Analyzers N99xxA User’s Guide Korean Battery Safety Translation...
  • Page 836 Korean Battery Safety Translation Keysight N9927-90020 User’s Guide...
  • Page 837 Korean Battery Safety Translation Keysight N9927-90020 User’s Guide...
  • Page 838 Korean Battery Safety Translation Keysight N9927-90020 User’s Guide...
  • Page 839 Korean Battery Safety Translation Keysight N9927-90020 User’s Guide...
  • Page 840 Korean Battery Safety Translation Keysight N9927-90020 User’s Guide...
  • Page 841 Korean Battery Safety Translation Keysight N9927-90020 User’s Guide...
  • Page 842 Korean Battery Safety Translation Keysight N9927-90020 User’s Guide...
  • Page 843 Korean Battery Safety Translation Keysight N9927-90020 User’s Guide...
  • Page 844 Korean Battery Safety Translation Keysight N9927-90020 User’s Guide...
  • Page 845 Keysight Handheld Analyzers N99xxA User’s Guide Russian Battery Safety Translation...
  • Page 846 Russian Battery Safety Translation Keysight N9927-90020 User’s Guide...
  • Page 847 Russian Battery Safety Translation N9927-90001 Keysight N9927-90020 User’s Guide...
  • Page 848 Russian Battery Safety Translation N9927-90001 Keysight N9927-90020 User’s Guide...
  • Page 849 Russian Battery Safety Translation N9927-90001 Keysight N9927-90020 User’s Guide...
  • Page 850 Russian Battery Safety Translation N9927-90001 Keysight N9927-90020 User’s Guide...
  • Page 851 Russian Battery Safety Translation N9927-90001 Keysight N9927-90020 User’s Guide...
  • Page 852 Russian Battery Safety Translation N9927-90001 Keysight N9927-90020 User’s Guide...
  • Page 853 Russian Battery Safety Translation N9927-90001 Keysight N9927-90020 User’s Guide...
  • Page 854 Russian Battery Safety Translation N9927-90001 Keysight N9927-90020 User’s Guide...
  • Page 855 Russian Battery Safety Translation N9927-90001 Keysight N9927-90020 User’s Guide...
  • Page 856 Russian Battery Safety Translation Keysight N9927-90020 User’s Guide...
  • Page 857 Keysight Handheld Analyzers N99xxA User’s Guide Keysight Software End-User Licensing Agreement (EULA)
  • Page 858 Keysight Software End-User Licensing Agreement (EULA) Keysight N9927-90020 User’s Guide...
  • Page 859 Keysight Software End-User Licensing Agreement (EULA) Keysight N9927-90020 User’s Guide...
  • Page 860 Keysight Software End-User Licensing Agreement (EULA) Keysight N9927-90020 User’s Guide...
  • Page 861 CalReady charging align all now,alignments properties external alignments,align all now CalReady Properties internal alignments,individual Capture Data IQA disposal alignments,overview care of the battery gauge all about markers CAT mode icons AM FM Tune & Listen Keysight N9927-90020 User’s Guide I–1...
  • Page 862 , 701, delta markers EMI Mode Units step size Detection Method Enhanced Response Frequency Counter at SA , 222, 280, detection method Optimization Marker , 222, 280, , 226, I–2 Keysight N9927-90020 User’s Guide...
  • Page 863 BW , 198, 273, 338, Streaming measurement resolution , 66, scale , 63, markers,using 2-port insertion loss sweep time , 66, measurement,parameters measurement sweep type , 65, 113, trace averaging measurements,about , 64, 65, Keysight N9927-90020 User’s Guide I–3...
  • Page 864 USB antenna Multi-Trace Configurations Mapping mode measurements multi-trace configurations settings , 469, 1-port cable loss Mapping, Option 352 measurements, CAT Mapping,Record/Playback mode marker NA Factory Cal 1-port cable loss, CAT table NA mode mode I–4 Keysight N9927-90020 User’s Guide...
  • Page 865 Response Cals Printing response cals printing Restart , 212, 277, 339, protection, high restart , 212, 277, 339, temperature settings return loss measurements, CAT , 415, protective functions of the PAA mode mode battery Keysight N9927-90020 User’s Guide I–5...
  • Page 866 Tune & Listen (AM/FM) , 287, suffixes for file names sweep date and time acquisition parameter , 200, display colors 201, units, changing display units , 83, time units, DTF, changing output power time, NA mode I–6 Keysight N9927-90020 User’s Guide...
  • Page 867 Video Bandwidth SA mode Video triggering , 115, 206, video triggering , 206, 211, viewing charge status, battery , 730, installed options , 746, viewing and changing frequency extender Volume Control volume control VVM Calibration VVM mode Keysight N9927-90020 User’s Guide...
  • Page 868 Index I–8 Keysight N9927-90020 User’s Guide...
  • Page 870 This information is subject to change without notice. © Keysight Technologies 2014-2022 Edition 1, August 2022 www.keysight.com...

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