The County's TRS is not really stressed, but might just be getting upgraded/overhauled to modify it. The Old VHF/UHF stuff seems to be kept as a backup, and I have a feeling that the agencies using VHF/UHF that are not on the TRS will be soon, like FGH PD,.. FGH Admin,...
I can even see AAA getting more TG's and eventually abandoning thier VHF for primary ops...., except of course the MED Control stuff , possible the Primary ops of the Air Ambulance system will integrate also....
If they do what it looks like they might,.. You will see everything having primary ops on the TRS and VHF/UHF being backup.
I think they are really trying to get as organized as Rankin County, etc.....
I think that the Forrest County, and Rankin County systems would be a good pair to use as an say flagship to build on a statewide system if they went 800......... If Warren will make the switch from VSELP to say an ASTRO format, then youd have a huge Motorola 800 platform to go on....
Jones County, Forrest County, Warren, Rankin, Hinds, Washington,.... and if Jackson is smart,.. when they go digital, they will upgrade to a Motorola system