With the AWIN, LWIN, and the way the MSWIN is being set up, there are no regional zones set up.. As far as I know this is the same for ALL P-25 wide area TRS's. On the older systems they are set up for state agencies to have statewide access, and municipalities, and counties to have regional access, with a roaming tg for statewide use. The ability to be able to communicate anywhere you are with your agencies is a vital part of true statewide interoperability. Just as vital as having common mutual aid/interop tg's and conventional freqs as backups. Adding the ability to be able to communicate with other nearby states is even sweeter! The only regional zoneage for AWIN that I am aware of is how the ADEM, and local OEM radios are done. Each radio is set up with multiple zones in it. Each zone has the ADEM primary TG's, the regional ADEM TG's, the MAC's, and ASP District TG's... As well as the region's County Level SO/OEM AWIN TG's. For example- Garland OEM AWIN radios primary zone is the ADEM Central region. They are programmed with the ADEM 1, 2, and all 5 ADEM Central TG's, Garland County SO/OEM TG, ASP Troop K MED, Area K Events TG's, ASHD (State Health) TG's, etc... then also have the primary TG's for the surrounding areas in the Central Area. In other zones are TG's for surrounding counties that are in other zones.
Now- the best bet for scanner programming on the AWIN for State Level Agencies? Put in ALL the ASP Dispatches, and Tacs, and if you want to catch the rarely used but interesting ASP stuff... NARC's, CID's, and CACD's... All the AHP stuff.... All the State period! For local, put your County SO/OEM TG's... And the surrounding Counties SO/OEM TG's... I'd also add the DEA, and US Marshal TG's as they see some usage on a regular basis. Program all your local AWIN Sites in so you catch everything when mobile. Get Pro96Com in your PC and use it often to log traffic and be able to know whats affiliated and granted voice access the most often for your area! It is a awesome tool!