The signal written at {HEAD ~ each write power level} Pwm is read to measure the Henv and Lenv of the read signal amplitude, and calculations are performed to determine {TAIL ~ the modulation Mm=/Henv} corresponding to each Pwm value 
The signal written at { HEAD ~ each write power level } Pwm is read to measure the Henv and Lenv of the read signal amplitude , and calculations are performed to determine { TAIL ~ the modulation Mm=/Henv } corresponding to each Pwm value
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH