For another embodiment {HEAD ~ the antennae} for {TAIL ~ aircraft} are horizontally oriented while ground vehicle antennae are vertical as in present commercial practice 
for
For another embodiment { HEAD ~ the antennae } for { TAIL ~ aircraft } are horizontally oriented while ground vehicle antennae are vertical as in present commercial practice
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH