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