Because {TAIL ~ digital data} is modulated by a carrier of {HEAD ~ approximately 10 MHz}, an electromagnetic field is generated 
Because { TAIL ~ digital data } is modulated by a carrier of { HEAD ~ approximately 10 MHz } , an electromagnetic field is generated
OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH