Folks - I have two different QMX rigs - one low band (rev 1), one high band (rev 2). In the configuration I have enabled TX ground on both on each band. I've soldered in a short jumper to correct the trace error on these early boards. Both rigs are at firmware version xxx.17. I've plugged in a 3.5mm cable into the PTT jack on the right side. The other end is bare wires (for testing). I've attached my VOM across the tip and ground, press the key, and.... nada. No ground happening. I've tested continuity with the cable unplugged and also verified that the wires I think are tip and ground are in fact tip and ground.
?So, is there some other magic stuff I have to do to get PTT ground working?
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Jim / K7TXA
Eagle, ID
SKCC 10447T
BUG 301