{TAIL ~ The voltage controlled oscillator oscillates} at a frequency equal to the center frequency of {HEAD ~ the carrier} of the input angle modulated wave, when the phase locked loop becomes unlocked 
{ TAIL ~ The voltage controlled oscillator oscillates } at a frequency equal to the center frequency of { HEAD ~ the carrier } of the input angle modulated wave , when the phase locked loop becomes unlocked
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH