It would depend on atomosperic conditions, if someone connected to your tower/simulcast is on the tgid that would be active. There's also the reason that troop G and F set their patching to connection to "full" so you can hear someone if they're in another district. Different than Troop H does where you can hear dispatch/monroe on any channel connected to the patching (H1, H2, H4, H6 for one. H3 and H5 for the other) but you can't hear a troopers response on those channels unless it's from the TG. For example, If you're connected to H1 but you hear H4 get called, you won't hear the trooper in H4.