Jamie, do you have C16 installed in the WA3TFS amplifier?? I plan to build my amplifier without C16 and test with the QMX.? Depending on those results, my backup plan is to use the QMX +5V PTT signal.? Inputting +5V to the base of the amplifier's T1 via the voltage divider.? That should turn T1 on and switch the relay.? This would replace using the rectified RF input to switch the relay and should make the PTT to TX delay effective.? Not an electronics expert, so we'll see if this works.? :-)
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73,
Jim - AE5JE
AE5JE - Jim