{HEAD ~ The modem} provides a calibration signal for calibrating a modulation characteristic of the supply modulator, to {TAIL ~ the supply modulator} 
{ HEAD ~ The modem } provides a calibration signal for calibrating a modulation characteristic of the supply modulator , to { TAIL ~ the supply modulator }
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL