{TAIL ~ a receiver mixer} connected directly to {HEAD ~ an output} of the circulator interface to the transmitter and antenna 
{ TAIL ~ a receiver mixer } connected directly to { HEAD ~ an output } of the circulator interface to the transmitter and antenna
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH