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it is easy,y=(1+mcos(wt))*cos(wc*t)=cos(wc*t)+mcos(wt)*cos(wc*t),in AM modulation, the cos(wc*t) is the carrier frequency,but it dosenot carry any information,so we shall filter it before it come into power amplifier,this called carrier supression
hi springf2000:
i have a question,when measure carrier suppression on IQView or agilent spectrum analyzer,then, how much output power should be? pls advise,thanks!
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