Define what is the efficiency of the am modulator

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Reference no: EM13277226

An AM modulator is operation with an index of 0.4. The modulation input is

m(t) = 4 cos(3πfmt) + 2 cos(5πfmt) + 4 cos(7πfmt)

(a) Sketch the spectrum of the modulator ouput showing the weights of all impulse functions.

(b) What is the efficiency of the modulator?

Reference no: EM13277226

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