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My 2 month old 6400M Loses Audio

My 2 month old 6400M loses audio when I select 12M on the band selection buttons.

No PC connected to radio, connected to my network, running V3.2.39

When selecting 12M, I get a message on screen that Ant may no be changed when Transmitting. And Audio stops. 

I also notice that the Rec Ant is on 2 and the Xmit Ant is on 1, when I had set it to Ant 2.

If I press 12M again the audio will generally come back.


  • Mike-VA3MW
    Mike-VA3MW Administrator, FlexRadio Employee, Community Manager, Super Elmer, Moderator admin


    That does sound unusual. Can you take a picture of your screen and add it to this dialogue?

    It could be that your AGC-T settings are set to Zero.

    Is there some other application that could be sending a transmit command to the radio?

    The other option is that you may want to do a radio reset after you backup your profiles.


  • Craig Kolk
    Craig Kolk Member ✭✭

    Problem solved with a reset. Thank you

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