Re: uBitx mic trouble: ptt always on #ubitx #ubitx-help

Vic WA4THR
 

On my V4 board there was enough drop when I plugged the mic in to cause the uBitX to cycle in and out of transmit. The internal Arduino resistor was not up to holding the 5v signal above the keying threshold, which I could monitor using the KD8CEC software. I added an external 5v dropping resistor and have had no issues since.

=Vic=

Join BITX20@groups.io to automatically receive all group messages.