I finally got around to looking at the manual, and there is a TX Inhibit pin on the ACC connector on the back of the radio. You'll need to dig through a bunch of sequencer documentation to figure out if you pull the pin high or low to disable transmit.?
If the microphone PTT line is a pull down to ground or some
such function, you might be able to tie that line high. If there's anything on
the rear panel which serves the same function a similar method might be used
there as well. Just a thought without a diagram in front of me.
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Sonny N1KHB
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In a message dated 11/12/2016 1:43:45 P.M. Eastern Standard Time,
FT817@... writes:
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I want to connect a receive only loop antenna and don't want to risk
killing it if the 817 goes into transmit. Is there a way to inhibit the TX
output. I could remove the mic so that the PTT is not available but I'd like
something a bit more sure than that. Wellbrook loops are very expensive to
replace!
