Mike,

Did you read the continuity between the 1st and 2nd rings of the MH3 plug?
The MH3 PTT connects those two rings (and not the shell).

73,
Don W3FPR

On 6/30/2020 1:27 PM, Michael Walker wrote:
Thanks Don

Plugging a Stereo  (3 conductor) does not cause the radio to go into TX with Menu:MIC BTN set to Ptt.

Looking like a bad MH3.

I did ohm out the MIC between ground and the PTT line and it did show open.  I would be expecting a short.

Mike va3mw


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