A conventional amplitude modulator (AM), where m(t) is the analogue message, VDC is an offset voltage and c(t) is the carrier signal. Let m(t) = 5cos(2a104t), Vpc = 10V and the carrier frequency is fc = 10°HZ; 1) Draw the AM modulator circuit used to generate this AM signal. 2) Determine the equation of amplitude modulator, VAM (t), at the output of this modulator. 3) Sketch VAM(t) at the output of the modulator in the time domain. 4) Draw the frequency spectrum of the signal VAM (t). 5) Find modulation depth, m, also comment on the type of modulation. 6) Compute power of side band and carrier signal. 7) Calculate the efficiency of this AM modulator

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A conventional amplitude modulator (AM), where m(t) is the analogue message, VDC
is an offset voltage and c(t) is the carrier signal. Let m(t) = 5cos(2n104t), VDC = 10V
and the carrier frequency is fc = 10$Hz;
1) Draw the AM modulator circuit used to generate this AM signal.
2) Determine the equation of amplitude modulator, VAM (t), at the output of this
modulator.
3) Sketch VAM(t) at the output of the modulator in the time domain.
4) Draw the frequency spectrum of the signal VAM (t).
5) Find modulation depth, m, also comment on the type of modulation.
6) Compute power of side band and carrier signal.
7) Calculate the efficiency of this AM modulator
Transcribed Image Text:A conventional amplitude modulator (AM), where m(t) is the analogue message, VDC is an offset voltage and c(t) is the carrier signal. Let m(t) = 5cos(2n104t), VDC = 10V and the carrier frequency is fc = 10$Hz; 1) Draw the AM modulator circuit used to generate this AM signal. 2) Determine the equation of amplitude modulator, VAM (t), at the output of this modulator. 3) Sketch VAM(t) at the output of the modulator in the time domain. 4) Draw the frequency spectrum of the signal VAM (t). 5) Find modulation depth, m, also comment on the type of modulation. 6) Compute power of side band and carrier signal. 7) Calculate the efficiency of this AM modulator
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