Contact an Expert

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
2015-01-23 A.05.14 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'll see a folder named "N934xDATA" with file N934XUPGRADE.PAC.
    2. Insert the USB stick into the TOP panel of instrument.
    3. Press [Shift] > [System Mode] > {More} > {Service} > {Upgrade Firmware}.
    4. Press [Enter] to upgrade the firmware. This procedure including checking file, copying files will take 10 to 15 minutes. Please keep power on and USB memory connected.
    5. If the screen turns off during that time, don't power switch it manually for 30 mins.
    6. If the HSA is upgraded from a very old version, it will upgrade FPGA and ask customer to press [Enter] during the procedure.


  • Does Not Require a License

Supporting Documentation


Installs on:



  • Information Not Available

Supported Instruments

  • N9342C, N9343C or N9344C