I think the easiest way to explain trunked radio would be an example. You're scanning the Sackville site. Let's say there's a fire in Cole Harbour, and HRM fire assigns the 'ops 2' talkgroup for the fire. The site with the best coverage in Cole Harbour is most likely the Preston site. Everybody on-scene in Cole Harbour switches their radios to ops 2, and lets say everyone's radio affiliates with ('attaches to' if that makes sense) the Preston site. If every radio on ops 2 is affiliated with the Preston site, that's the only site you'll hear ops 2 on.So If I'm in Sackville listening to the trunked system from the Sackville tower, does the local Sackville tower rebroadcast the stuff that isn't being transmitted locally (IE within range of my receiver) or will I only receive the radios within range of me?
If it doesn't rebroadcast stuff what's the best setup for two SDR's to get the most traffic? Should one be on the trunk with SDRtrunk and the other scanning the VHF freq's on SDR#, or should I do something else?