Come here to talk about the San Diego and Imperial County Regional Communications System. This is a great resource to share talkgroups and information about the countywide RCS.
Caught a brief conversation on 45520 between "HazMat 4" and "HazMat 5" on 45520 and they made reference to the "Command Vehicle" and cross-connecting radios in it.
Go listen to the north rcs then listen to the south then listen to the imperial county portion you will hear a major difference they didnt have the same guy tune all the transmitters