Hey All, A while back I built a Micor Repeater. And had all sorts of fun with the squelch circuit. Why is there 2 squelches on that unit, 1 for audio and one for PTT control? Also Keyed A- and Keyed A+, where are those control lines generated from, which transistor is it that sinks current for keyed A- and which one is the source for keyed A+ or even which module does that? They way I built it was the simplest way possible (that I know of), I have a station control module, a squelch gate and a TOT (which I think I could have omitted but decided not to). The whole thing is puzzling to me, even though I did manage to get a nice sounding sensitive HAM repeater out of it (could never have done it without the manuals)
Thanks Guys, Jesse
