| FMARS is fire channels to tie St Marys to Calvert an or to Charles or to both.
The PMARS is the police side to perform the same service. These channels are idle till needed. Maryland State Police in St Marys use the trunked channels in St Marys but when they leave the county they use the low band through the state. Also when troopers come into St Marys they use the low band system which is patched to the trunked system. There is 10 channels in the trunked system one of these channels is used for the control channel. The control channel is interfaced with a computer system to set prioritys and select the channel to be the operating channel for a message. These channels are not dedicated to any group. |