I'm not quite understanding this feature myself...
Our system has dynamic regrouping set up on a zone and channel in the radio (z2ch2, or B2). When I turn a radio to that channel, I get a steady low tone and "DYNREG" on my screen.. that much, I think I understand, is normal.
I also understand that this can be established as a temporary talkgroup by a dispatcher, and anyone with Dynamic Regrouping in a zone/channel position would then be able to use that talkgroup until it is struck, ie. shut down.
I don't think the feature has ever been used on our system. I'm reasonably sure the bits required to create the dynamic talkgroup on the dispatch end haven't been set up in the console - or is it only a supervisory function? (The consoles I usually see are plain old dispatchers.)
My big question in all this is this: Those of you who say you're able to pick up the dynamic talkgroup on your scanner, how are you figuring out what talkgroup ID to look for? Or do you just hear people from two different groups talking together and assume that's the dynamic group?
Here, each agency has two talkgroups assigned for them to host a tri-services incident upon, and all three emergency services have all six talkgroups; so if fire was doing a response and wanted to talk to an EMS unit, they could go to one of fire's tri-services talkgroups; if police wanted to talk to fire and ems, they could have everyone switch to one of the police tri-services talkgroups. I guess that's why we don't use dynamic regrouping here.. we've sort of duplicated it using dedicated talkgroups. Am I right?