{TAIL ~ The emergency transceivers} can be capable of transmission of spread spectrum encoded messages, and can be actuated by {HEAD ~ a user} to send a distress message 
{ TAIL ~ The emergency transceivers } can be capable of transmission of spread spectrum encoded messages , and can be actuated by { HEAD ~ a user } to send a distress message
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH