to be clear: you want to run 1 copy of unitrunker, with 2 receivers and 3 voice VCOs; each VCO monitoring only one particular talkgroup?.
Yes, that's right.
So...
Talkgroup "1" Raw Output -------> Vac Line 1 ------> DSD+------>Line 2 output--------->Scannercast Feed 1
Talkgroup "2" Raw output------->Vac Line 3-------->DSD+-------->Line 4 output------->Scannercast feed 2
Talkgroup "3" Raw output------->Vac Line 5-------->DSD+-------->Line 6 output------->Scannercast feed 3
But if there's another way to do so in linux, i may want to do that.
a problem i see with 1 voice receiver is that you can only tune-in to 1 voice call. even if you were able to lock into multiple talkgroups, if one talkgroup is active, you'll miss the call on the other talkgroups in the meantime - unless i'm mistaken..
If i have 3 different voice receivers, they all receive at the same time.
Another problem i have is that the airspy doesnt quite have enough bandwidth to cover the full range of the system i am trying to monitor (851-860). It is quite choppy when you start getting into multiple voice channels receiving at once, because unitrunkers "sliding window" keeps trying to correct itself and never stays on a single center frequency, so you end up with unreadable, error-ridden signals...