One more for the pile:
I have both QMX 80-20M and 20-10M versions, both are working like champs, excellent DX all around, running 014 firmware.?
But PTT isn't working at all on either version of the QMX, both on the "TX PTT +5V? and "TX PTT grounded"? (open collector, tested with a 10K pullup resistor to 5V) as enabled in band configuration. No output on either, not when transmitting from WSJT (with PTT configured for CAT), not from from by pressing the "p" button in diagnostics in the terminal interface, and not from pressing T either. It's just not working on either radio with pretty much identical behavior.?
I'll be glad when this gets fixed up. Meanwhile, is there any work-around? Any point on the board where we can pull a PTT signal from? What about the terrible hack of a current sensor on the QMX power input that triggers a relay? Might be more preferable than soldering to the board.
Coincidentally, I've also only noticed this as I begin to experiment with the 50W amp.
Cheers,
Andy KA1PLU
