A locator transceiver can be capable of receiving the distress messages and performing two way ranging to determine {TAIL ~ a distance} between {HEAD ~ the locator transceiver} and the emergency transceiver 
A locator transceiver can be capable of receiving the distress messages and performing two way ranging to determine { TAIL ~ a distance } between { HEAD ~ the locator transceiver } and the emergency transceiver
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH