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No Mic Selection Menu when Tx Menu knob Pushed In on Maestro

Mike KB0FX
Mike KB0FX Member
edited January 2020 in Maestro
I have a 6400M running Radio Firmware version v3.1.8.145. The serial number is 2019-010-4141. The 6400M does have the ATU installed. I also have a Maestro Model B serial number 2019-1746-0101-4141 running software version They are both on the same LAN subnet which is 192.168.0.X. When I depress the Mic-Speed-PWR- TX Menu knob I do not get the TX Menu. This means I cannot select a microphone input and therefore cannot transmit SSB. I am trying to use a Heil Traveler Headset attached to Mic 2. I have confirmed bias is present and used an oscilloscope to verify microphone audio is present. I have tried falling back to the previous version of software. No Change. 


  • Steven WA8Y
    Steven WA8Y Member ✭✭
    edited January 2020
    Maybe your mode is not SSB. Different mode, different menus. Make sure you are in LSB or USB.
  • A friend of mine has the same problem with his Maestro.
    Is there a known solution/reason?

    Depress the TX MENU knob doesn't work/no function.

    We found a workaround:
    Depress the red "RF PWR" in the display will open the same menu/dialog as depressing the knob.

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