Please note that you DO NOT need to return your E4981A to Keysight service center for updating the firmware. The E4981A firmware upgrade can easily be performed on your own with the information and tools available on this Web page.

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
2022-12-27 A.03.21 E4981A Firmware Revision A.03.21
Release Date Version
2022-12-27 A.03.21
Version Description
E4981A Firmware Revision A.03.21

How to Download

  • Click the download button and save the file to a temporary directory on your PC.

How to Install

Licensing

  • Does Not Require a License

Supporting Documentation

Download

Installs on: Instrument

Prerequisites

  • No specific prerequisites

Supported Instruments

  • E4981A

How to Download

  • Click the download button and save the file to a temporary directory on your PC.

How to Install

Licensing

  • Does Not Require a License

Supporting Documentation

Download

Installs on: Instrument

Prerequisites

  • No specific prerequisites

Supported Instruments

  • E4981A

How to Download

  • Click the download button and save the file to a temporary directory on your PC.

How to Install

Licensing

  • Does Not Require a License

Supporting Documentation

Download

Installs on: Instrument

Prerequisites

  • No specific prerequisites

Supported Instruments

  • E4981A

How to Download

  • Click the download button and save the file to a temporary directory on your PC.

How to Install

Licensing

  • Does Not Require a License

Supporting Documentation

Download

Installs on: Instrument

Prerequisites

  • No specific prerequisites

Supported Instruments

  • E4981A

How to Download

  • Click the download button and save the file to a temporary directory on your PC.

How to Install

Licensing

  • Does Not Require a License

Supporting Documentation

Download

Installs on: Instrument

Prerequisites

  • No specific prerequisites

Supported Instruments

  • E4981A

How to Download

  • Click the download button and save the file to a temporary directory on your PC.

How to Install

Licensing

  • Does Not Require a License

Supporting Documentation

Installs on: Instrument

Prerequisites

  • No specific prerequisites

Supported Instruments

  • E4981A

How to Download

  • Click the download button and save the file to a temporary directory on your PC.

How to Install

Licensing

  • Does Not Require a License

Supporting Documentation

Download

Installs on: Instrument

Prerequisites

  • No specific prerequisites

Supported Instruments

  • E4981A

How to Download

  • After downloading the file, open the file e4981a x.xx.zip and copy the file fw upd.exe to a temporary directory e.g. C TEMP on your computer's hard drive.

How to Install

Licensing

  • Does Not Require a License

Supporting Documentation

Download

Installs on: Instrument

Prerequisites

  • No specific prerequisites

Supported Instruments

  • E4981A

How to Download

  • After downloading the file, open the file e4981a x.xx.zip and copy the file fw upd.exe to a temporary directory e.g. C TEMP on your computer's hard drive.

How to Install

Licensing

  • Does Not Require a License

Supporting Documentation

Download

Installs on: Instrument

Prerequisites

  • No specific prerequisites

Supported Instruments

  • E4981A
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