{HEAD ~ a radio transmitter} that transmits the transmitter signal from a transmission path into {TAIL ~ the transmission channel} 
{ HEAD ~ a radio transmitter } that transmits the transmitter signal from a transmission path into { TAIL ~ the transmission channel }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL