wherein {HEAD ~ the processor} causes the transmitter to transmit {TAIL ~ the current position data} by: 
wherein { HEAD ~ the processor } causes the transmitter to transmit { TAIL ~ the current position data } by :
OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH