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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
2013-12-05 A.04.45 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. Insert the USB stick into the TOP panel USB connector.
    3. Press [Shift] > [System Mode] > {More} > {Service} > {Upgrade Firmware}.
    4. Press [Enter] to upgrade the firmware. This upgrade procedure including checking file, copying files will take about 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 untill it beyonds 30 minutes.
    ­6. If the HSA is upgraded from a very old version, it will upgrade FPGA and ask customer to press "Enter" button. Press "Enter" button and wait for about 5 minutes. The screen will be turned off sometimes.
    7. Unplug the USB memory and restart the HSA when message "­All Modules have been upgraded, please restart"­ is displayed.
    8. Press [Shift] > {System Mode} > {System Info} > {Show System} to check. The MCU firmware version should be A.04.45.


  • Does Not Require a License

Supporting Documentation


Installs on:



  • Information Not Available

Supported Instruments

  • N9342C, N9343C or N9344C