I have a DEMI 2m amp and a separate HF KW amp both
needing PTT control. Is there a way to use one of the other open
collector X2 pins as a 2nd PTT line so I do not have to switch them?
Or is there another way to handle the PTT requirements for 2 or more amps?
I thought about using the K1 open relay contacts in the DEMI downconverter, but
that relay changes states when SDR is in "standby"(off) and then
it again (on) when it SDR is ON and then back (off) with
MOX. Docs of DEMI 144-28FRS say this relay should "mirror the PTT
line (assume pin 7 of X2) of the SDR.."? I guess one could say it does
this, but only when the SDR is "ON" :-) But, then the NO open
contacts are closed (since relay is ON with SDR ON) and relay turns OFF
with MUX. Perhaps I have something set up wrong?
tnx
Mel, K0PFX
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- [Flexradio] Mutiple amp PTT control? Mel Whitten
- Re: [Flexradio] Mutiple amp PTT control? Eric Wachsmann - FlexRadio