Bill Tippett wrote:
> In addition to muting the receiver, the PTT line should be closing
> the AMP KEY line to your amplifier.
It should also switch Orion to transmit.
That would give the exact control of T/R timing to those who need it,
provided that the rest of Orion is capable of supporting such a thing.
> I agree that the radio still works
> in QSK, but of course you can adjust EXT T/R Delay so that the amp will
> still work in Semi-Breakin in case you forget to depress PTT. As I recall,
> this is exactly how my MP worked.
No, with both VOX and BREAKIN turned off,
MP will not switch to transmit on a key closure.
That's how it should be.
> Although my preferred mode was to
> press my footswitch, Semi-breakin was there to "rescue" me in case I did
> not depress it fast enough for the computer keying (I also use manual keying
> in parallel with CT for contests).
Footswitch & computer keying?
Why? Most programs support PTT via COM/LPT.
73,
Sinisa YT1NT, VA3TTN
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