Electrical chokes may also be used to contain returning {HEAD ~ currents} to {TAIL ~ the distal end} of the antenna 
to
Electrical chokes may also be used to contain returning { HEAD ~ currents } to { TAIL ~ the distal end } of the antenna
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH