A communication system for limiting communication between communication terminals based, at least in part, upon a separation between communication terminals is disclosed. A first communication channel is coupled with a first communication terminal, where the first communication terminal includes a transmitter. A second communication channel coupled with a second communication terminal, where the second communication terminal includes a receiver. A separation determining function finds a distance between the first and second communication terminals. A distance squelch analyzes the distance to prevent use of a message by the receiver.