Hello gang. I've been playing with these a little while, enough to work them but new enough to venture neck deep. I am fooling around with building a repeater with two of these radios. I realize my connector and cable collect will expand. I have a 100W duplexer, two DB40-G radios in service (which will test my toy before purchasing more). I have an antennae which will work for this game. 1) Do they need to be connected together (mic wire, controller, etc...)? 2)Depending on the previous answer, what would be recommended? This is a fun project which is relatively low budget. Sorry that I have not added a clever sign off below but its coming.