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N9342C, N9343C, N9344C Handheld Spectrum Analyzer (HSA) Firmware

Do not perform the firmware upgrade with an encrypted USB memory stick, which may cause unrecoverable hardware failure of the instrument.

Release Date Version Version Description
2015-12-23 A.06.21 Firmware file available for download.

How to Download

  1. Click the Download button
  2. Save the file to your PC.

How to Install

  • 1. Extract files to the root directory of a USB stick. You will see a folder named N934xData with file N934XUPGRADE.PAC.
    2. Plug the USB disk in the USB connector on the top panel.
    3. Press [SYS] > {More} > {Service} > {Upgrade Firmware}, press [Enter] to upgrade the firmware. This procedure lasts about 10-15 mintues. Please keep power on and the USB disk connected. If the sceen is turned off, do not press power switch in 30 minutes.
    4. Unplug the USB disk and restart the unit.


  • Does Not Require a License

Supporting Documentation


Installs on:



  • Information Not Available

Supported Instruments

  • N9342C, N9343C or N9344C