{TAIL ~ a receiver module housing}, wherein the second end of the tube is mechanically coupled to an outer surface of {HEAD ~ the receiver module housing}; and 
{ TAIL ~ a receiver module housing } , wherein the second end of the tube is mechanically coupled to an outer surface of { HEAD ~ the receiver module housing } ; and
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH