[aprssig] Mic-E and HTs

[scott at opentrac.org]

> it's (TT3) data burst on the end of the over. (Mic-E PTT action, as
> opposed to a Mic-E compressed packet.)
> D6 is there to stop it retriggering itself.

Right, but with most HTs there's going to be no separation between PTT IN
and PTT OUT - you still have to get the audio from the mic to the HT, and
that's the same line as the PTT, unless it's a Kenwood or something with a
separate PTT signal.

Scott
N1VG