{HEAD ~ a ported coaxial cable} disposed on the external surface of said coil of wire and extending along {TAIL ~ the length} thereof 
extending along
{ HEAD ~ a ported coaxial cable } disposed on the external surface of said coil of wire and extending along { TAIL ~ the length } thereof
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH