To upgrade firmware:

  1. Power on the FieldFox
  2. To view the current installed firmware in FieldFox
    • Press System (7), press Service Diagnostics, press System Information
  3. The Current Version tab at the bottom of this page provides a link to download the latest firmware

Back up all user state files before performing firmware update

NOTE: Firmware upgrades do not affect the measurement accuracy of a FieldFox instrument. An annual calibration of a FieldFox remains valid following a firmware upgrade. 

Keysight recommends using the most current version, which includes the most up-to-date bug fixes and security patches available.
Release Date Version Version Description
2026-06-05 D.14.16 Release Notes: Support for 120 MHz IQ Streaming Various bugfixes
Release Date Version
2026-06-05 D.14.16
Version Description
Release Notes: Support for 120 MHz IQ Streaming Various bugfixes

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 Instructions for installation process.

Licensing

  • Does Not Require a License

Supporting Documentation

Installs on: Instrument

Prerequisites

  • Information Not Available

Supported Instruments

  • N991xD, N993xD, N995xD, N996xD analyzers.

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 Instructions for installation process.

Licensing

  • Does Not Require a License

Supporting Documentation

Installs on: Instrument

Prerequisites

  • Information Not Available

Supported Instruments

  • N991xD, N993xD, N995xD, N996xD analyzers.
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