Thanks, I did not know that. I will try that this evening! When you say that "2 radios will not work in simplex (directly between each other) because they are transmitting and receiving on different channels", what that means is. the the transmit signal goes to the repeater, then the repeater re transmits it out on the other freg where the second radio picks it up......so on the surface it appears that they are connecting direct......is that correct? John