Note, in FIG 4, that {TAIL ~ the transmitter} 47 and {HEAD ~ the antenna} 49 may be mounted on the pendulum 86 
Note , in FIG 4 , that { TAIL ~ the transmitter } 47 and { HEAD ~ the antenna } 49 may be mounted on the pendulum 86
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH