Each fire dept will essentially have 2 talk groups unique to them. They will have their main TG, for instance Swanton is HEX 3468, then each dept will also have a ops 12-X TG for overflow communication, (ie structure fire, the tanker may communicate with command on 12-7 as the water supply channel, but the majority of operations will be going on on the swanton TG)
They will then use a brand spanking new TG that was created this year in the new fleet mapping, which is Fulton Fire 2 for communications with Dispatch Center.
The VHF will only be used for paging for initial dispatch. All traffic will be on the Fulton Fire 2 TG.
For run of the mill EMS runs all traffic will be on FF2 TG
The fleet maps on the radios are set up with Fulton Fire 2 as channel 1 and Fulton Fire 1 (the original Fulton Fire Dispatch TG) is channel 16. Dispatch will monitor both channels at all times, so in an emergency a crew member can turn their channel selector dial all the way to the stops in either direction and be able to talk to dispatch.
Also, in case I was not clear in the whole 700/800 thing, it will be simulcast on both sets of towers. Depending on which tower the radio is locked in on based on signal strength is which system the radio will broadcast on. The 800 system is the lucas county towers and controller and the 700 is the fulton county towers and controller, but both systems work together. So, if a unit on the far west end of the county keys up on a TG they will be using the 700 tower and controller, but a unit on the 800 tower and controller on the far east side of the county will hear them just the same.