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FieldFox Current Firmware (New CPU)

To upgrade firmware:

Power on the FieldFox
To view the current installed firmware in FieldFox
- Press System (7), press Service Diagnostics, press System Information
The Current Version tab at the bottom of this page provides a link to download the latest firmware
Follow the appropriate Update Instructions: Updating within A.09.xx

Back up all user state files before performing firmware update

For more information and guidance on which upgrade is right for you refer to the Upgrade Brochure. 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
2024-04-01	A.12.93	See Release notes

Release Date	Version
2024-04-01	A.12.93

Version Description
See Release notes

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

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

N991xA, N992xA, N993xA, N995xA, N996xA, N991xB, N993xxB, N995xB, N996xB, N991xC, N993xC analyzers with CPU2.

Release Date	Version	Version Description
2024-02-29	A.12.92	Update to USB Power Sensor Mode when option 208 is not present. Update to GPS location information when saving .mat files.

Release Date	Version
2024-02-29	A.12.92

Version Description
Update to USB Power Sensor Mode when option 208 is not present. Update to GPS location information when saving .mat files.

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

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

N991xA, N992xA, N993xA, N995xA, N996xA, N991xB, N993xxB, N995xB, N996xB, N991xC, N993xC analyzers with CPU2.

Release Date	Version	Version Description
2024-02-07	A.12.91	Support for option 366. See Supporting Documentation for details.

Release Date	Version
2024-02-07	A.12.91

Version Description
Support for option 366. See Supporting Documentation for details.

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

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

N991xA, N992xA, N993xA, N995xA, N996xA, N991xB, N993xxB, N995xB, N996xB, N991xC, N993xC analyzers with CPU2.

Release Date	Version	Version Description
2024-02-06	A.12.81	See Release notes for details

Release Date	Version
2024-02-06	A.12.81

Version Description
See Release notes for details

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

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

N991xA, N992xA, N993xA, N995xA, N996xA, N991xB, N993xxB, N995xB, N996xB, N991xC, N993xC analyzers with CPU2.

Release Date	Version	Version Description
2023-11-30	A.12.64	Bug fixes, see Release notes for details

Release Date	Version
2023-11-30	A.12.64

Version Description
Bug fixes, see Release notes for details

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

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

Release Date	Version	Version Description
2023-11-16	A.12.62	See Release notes for bug fixes

Release Date	Version
2023-11-16	A.12.62

Version Description
See Release notes for 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 Instructions for installation process.

Licensing

Does Not Require a License

Supporting Documentation

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

Release Date	Version	Version Description
2023-10-27	A.12.60	See Release notes. This firmware is not compatible with the new C models.

Release Date	Version
2023-10-27	A.12.60

Version Description
See Release notes. This firmware is not compatible with the new C models.

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

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

Release Date	Version	Version Description
2023-10-02	A.12.59	Bug Fixes: OTA mode hang on N996xB, N9911x WR42 calkit causes incorrect prompts in OSL cal

Release Date	Version
2023-10-02	A.12.59

Version Description
Bug Fixes: OTA mode hang on N996xB, N9911x WR42 calkit causes incorrect prompts in OSL cal

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

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

Release Date	Version	Version Description
2023-09-12	A.12.58	See Supporting Documentation for details

Release Date	Version
2023-09-12	A.12.58

Version Description
See Supporting Documentation for details

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

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

Release Date	Version	Version Description
2023-02-10	A.12.56	See Release notes for details

Release Date	Version
2023-02-10	A.12.56

Version Description
See Release notes for details

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

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

Release Date	Version	Version Description
2022-10-28	A.12.55	Fix for an internal frequency reference bug

Release Date	Version
2022-10-28	A.12.55

Version Description
Fix for an internal frequency reference bug

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

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

Release Date	Version	Version Description
2022-10-07	A.12.53	See Release Notes for details

Release Date	Version
2022-10-07	A.12.53

Version Description
See Release Notes for details

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

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

Release Date	Version	Version Description
2022-09-13	A.12.52	Various Bug fixes and enhancements. See Supporting Documentation for details.

Release Date	Version
2022-09-13	A.12.52

Version Description
Various Bug fixes and enhancements. See Supporting Documentation for details.

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

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

Release Date	Version	Version Description
2022-08-24	A.12.48	Several bugs fixed. See Release notes for details.

Release Date	Version
2022-08-24	A.12.48

Version Description
Several bugs fixed. See Release notes for details.

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

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

Release Date	Version	Version Description
2022-06-06	A.12.46	Fix for crash in OTA mode and Fix for NA calibration warning when using Type N connectors.

Release Date	Version
2022-06-06	A.12.46

Version Description
Fix for crash in OTA mode and Fix for NA calibration warning when using Type N connectors.

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

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

Release Date	Version	Version Description
2022-04-28	A.12.45	Fix for FOPS source measurement

Release Date	Version
2022-04-28	A.12.45

Version Description
Fix for FOPS source measurement

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

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

Release Date	Version	Version Description
2022-04-12	A.12.44	Bug Fix - Channel Scanner Data Logging Timestamp Not Correct/Updating Bug Fix -- Format of S2P file is always DB when trace other than S11 is being measured

Release Date	Version
2022-04-12	A.12.44

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

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

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

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

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

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

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

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

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

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

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.

Licensing

Does Not Require a License

Supporting Documentation

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

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.

Licensing

Does Not Require a License

Supporting Documentation

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

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.

Licensing

Does Not Require a License

Supporting Documentation

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

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.

Licensing

Does Not Require a License

Supporting Documentation

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

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.

Licensing

Does Not Require a License

Supporting Documentation

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

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.

Licensing

Does Not Require a License

Supporting Documentation

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

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.

Licensing

Does Not Require a License

Supporting Documentation

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

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.

Licensing

Does Not Require a License

Supporting Documentation

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

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.

Licensing

Does Not Require a License

Supporting Documentation

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

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.

Licensing

Does Not Require a License

Supporting Documentation

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

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.

Licensing

Does Not Require a License

Supporting Documentation

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

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.

Licensing

Does Not Require a License

Supporting Documentation

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

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.

Licensing

Does Not Require a License

Supporting Documentation

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

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

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.

Licensing

Does Not Require a License

Supporting Documentation

Download

Installs on: Instrument

Prerequisites

Information Not Available

Supported Instruments

N991xA, N992xA, N993xA, N995xA, N996xA analyzers with CPU2

Welcome

What are you looking for?

FieldFox Current Firmware (New CPU)

To upgrade firmware:

For more information and guidance on which upgrade is right for you refer to the Upgrade Brochure. 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.

How to Download

How to Install

Licensing

Supporting Documentation

Prerequisites

Supported Instruments

How to Download

How to Install

Licensing

Supporting Documentation

Prerequisites

Supported Instruments

How to Download

How to Install

Licensing

Supporting Documentation

Prerequisites

Supported Instruments

How to Download

How to Install

Licensing

Supporting Documentation

Prerequisites

Supported Instruments

How to Download

How to Install

Licensing

Supporting Documentation

Prerequisites

Supported Instruments

How to Download

How to Install

Licensing

Supporting Documentation

Prerequisites

Supported Instruments

How to Download

How to Install

Licensing

Supporting Documentation

Prerequisites

Supported Instruments

How to Download

How to Install

Licensing

Supporting Documentation

Prerequisites

Supported Instruments

How to Download

How to Install

Licensing

Supporting Documentation

Prerequisites

Supported Instruments

How to Download

How to Install

Licensing

Supporting Documentation

Prerequisites

Supported Instruments

How to Download

How to Install

Licensing

Supporting Documentation

Prerequisites

Supported Instruments

How to Download

How to Install

Licensing

Supporting Documentation

Prerequisites

Supported Instruments

How to Download

How to Install

Licensing