Here’s the page we think you wanted. See search results instead:


Contact an Expert

FieldFox Handheld Microwave Analyzer Firmware Release Notes (N991xA, N992xA, N993xA, N995xA, N996xA)

FieldFox firmware revisions are listed below. 


Version Release Date Notes
A.11.76 Jun 10, 2020
  • Bug fixes
A.11.75 Apr 30, 2020
  • 5GNR April 2020 release
  • 5GNR updates
  • OML frequency extender updates
A.11.55 Feb 24, 2020
  • NA mode: mixed mode measurements will not sweep
A.11.54 Feb 3, 2020
  • Mapping on-the-box download fix
  • ERTA “jumper cables” softkey fix
  • Noise Figure RBW 1 MHz Receiver Cal fix
  • SEM and EMF fixes
A.11.52 Jan 6, 2020
  • 5G NR over-the-air (OTA) measurements
  • 5G NR EVM conducted measurements
  • Indoor and outdoor mapping support
  • EMF measurements 
  • Spectrum Emission Mask (SEM) support 
  • OML frequency extender support WR28 24-40 GHz
  • Periodic frame trigger synced to GPS
A.11.31 Nov. 12, 2019
  • B models won't connect to VSA without B04 or B10 license
A.11.27 Sep. 17, 2019
  • Addition of the FieldFox Self-Test program
A.11.26 Jul 11, 2019
  • Support for B Model Products
A.11.03 May 6, 2019
  • MMEM:STOR:SNP missing from Wilson
  • N9912A: SA mode TG not property initialized for power
  • FOPS: 1st point of trace can be incorrect
A.11.02 Mar 1, 2019
  •  NF: Enhancement request - frequency annotation
  •  Center Frequency Not Properly Coupled to Start-Stop Frequencies For Converter DUT Types
  •  LO Frequency Not Properly Coupled Start-Stop Frequencies for Upconverter DUT Type
  •  Standby operation fails (NullReferenceException reported to the screen) if no VVS license installed on Carson and later models.


A.10.34 Dec 18, 2018
  • Installer does not handle install package files that have the read-only bit set.
  • NA mode: Marker table readout not legible in 2 trace overlay mode when one trace has marker bandwidth search turned on
  • TSS: recalling a saved pulse definition .xml file results in a NullReferenceException 
A.10.33 Sep 28, 2018
  • File Management -- choosing "Select Files" on an empty file list crashes unit
A.10.31 Aug 09, 2018
  • Crash when setting NA trace through Settings page
A.10.30 June 26, 2018
  • Option 356 Noise Figure
A.10.20 May 9, 2018
  • Various Bug fixes
A.10.18 Mar 05, 2018
  • channel scanner "pause" fix
A.10.17 Feb 13, 2018
  • Forward Response and Reverse Response cals broken in IQA release
  • Power Sensors: newest power sensor firmware incompatible with FieldFox firmware A.10.0x and A.10.1x

Fixed with A.10.16:

  • Customer reports disconnect-reconnect failure on thermocouple power sensors
  • ERTA: Input (SrcSide) cable corr is applied to B; should be applied to R
  • DTF -- recalling .csv file that has units set to "feet" causes incorrect x axis values both on the unit and via Datalink
  • Japanese, Chinese, and Korean fonts are missing
  • System, System Configuration, Options, Show Options -- displayed options columns are mis-sorted
A.10.15 Jan 29, 2018
  • Frequency domain and time domain measurements up to 10 MHz of analysis bandwidth
  • Customize display with up to 4 simultaneous and multi-domain measurement views
  • Requires spectrum analyzer mode (not supported on model N9912A)
A.10.01 Sep 12, 2017
  • VSA Support
  • No Support for DataLink at this time. Use the A.09.64 version for DataLink Support.
A.09.64 Aug 3, 2017 Print, Select Files for Printing, can't edit the row and column fields
A.09.62 Jun 5, 2017
  • Power meter mode with peak sensor
  • Print doesn't work with CPU2 units
  • GPS C/No Averaging Feature
  • GPS 1/sec update rate
  • Add cable FSJ4-50B
  • Power Sensor U2022XA H50 and U8489A support
  • Additional calkits
  • Various Power Meter fixes, including "device clear"
A.09.60 Mar. 20, 2017 No info at this time.
A.09.57 January 27, 2017

Installer on OF SD card does not run after programing QSPI with model/serial clear

Enhanced Response calibration not working with ECal unit

FieldFox with CPU2 self-assigns IP address (169.x.x.x) when connected to network with DHCP server

Wrong data in cable file DTF cable



Release Date Version Version Description
2020-06-10 A.11.76 Bug Fixes

How to Download

  • Click the download button, select file and save.

How to Install

  • NOTE! Please backup all user state files to computer or USB flash drive before updating to latest firmware revision.
  • See firmware update supporting documentation for installation process.


  • Does Not Require a License

Supporting Documentation


Installs on:



  • Information Not Available

Supported Instruments

  • N991xA, N992xA, N993xA, B Models N995xA, N996xA analyzers with CPU2