FIG 2C shows the time profile of {HEAD ~ the analog control signal} 21 that is used to adjust {TAIL ~ the gain factor} of the power amplifier 20 
is used to adjust
FIG 2C shows the time profile of { HEAD ~ the analog control signal } 21 that is used to adjust { TAIL ~ the gain factor } of the power amplifier 20
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH