A double walled configuration of {TAIL ~ the sleeve} can be provided in the sections incorporating the transmitter and {HEAD ~ the receiver} 
A double walled configuration of { TAIL ~ the sleeve } can be provided in the sections incorporating the transmitter and { HEAD ~ the receiver }
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD