The repeater on 154.0025mhz is used for dispatching Gold Cross units in Columbia County as well as the Air Med helicopter. The repeater on 154.2125mhz is used for dispatching Gold Cross units in Richmond County, if you want to hear both sides of any conversation always listen to the VHF frequencies. I'm not aware of any tower purchases in Jefferson County but that would make sense because I heard that Gold Cross has, or will have, the contract there but can't confirm that. It'll make for good frequency fishing if they do get another frequency to use for Jefferson County.