AIRS TG Musings

[WX4AJM]

I've been running ProScan and logging all talk groups that come through on my two receivable AIRS sites.
So far, I'm not really seeing any consistency, or a rhyme or reason as to how the TGIDs are set up on AIRS.
Anybody have an insight into the setup and coordination of the AIRS rollout?

Prime example of what I'm talking about - Dale County primary dispatch is now 29200. Ozark PD is 201, Fire/EMS 101. There was a special event channel setup for a festival that was 65191.

One thing I've been wondering is if P25 Phase 2 has a TGID limit, such as 65535. In any case, I was surprised to see the system not using the Alabama county numbering system (like on the license plates).

 

[KV4PM]

For what it's worth, all the AIRS TG's I receive here in Baldwin County are in the 2XXXX range with the exception, I think, of AirCare EMS.

 

[morganAL]

AIRS TGs are numbered by the Zone Core they are "homed" to.
Zone 1 - Calhoun Co (no longer part of AIRS)
Zone 2 - Baldwin Co
Zone 3 - Madison Co
Zone 4 - Jefferson Co/B'ham
Zone 5 - UA/Tuscaloosa

So, TG 44100 would be normally controlled by the Core in Birmingham. 32100 would be controlled by the core in Huntsville.

There are a lot of TGs that are carryovers from the SMARTNET/SMARTZONE days. Some of the Huntsville PD dispatch TGs are good examples.

 

[WX4AJM]

Just wanted to pop in and say a big thank you to @codeplug for the help and collaboration on finding more info out and deciphering what's been going on with the Ozark and Dale County sites. I've been having a blast with this project!