A conventional amplitude modulator (AM), where m(t) is the analogue message, VDC 5 volt is an offset voltage and c(t) is the carrier signal. Let m(t) = 3 cos(2710¹t), and the carrier frequency is fc =1 MHz, Answer the following questions: 1) Evaluate the modulation depth m. 2) Draw the AM modulator circuit used to generate this AM signal. 3) Write the mathematical equation of modulated signal for the above values. 4) Sketch VAM(1) at the output of the modulator in the time domain. 5) Draw the double side frequency spectrum of the signal VAM (t). 6) Evaluate the efficiency (n) of this AM modulator.

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A conventional amplitude modulator (AM), where m(t) is the analogue message,
VDC 5 volt is an offset voltage and c(t) is the carrier signal. Let m(t) = 3 cos(2710¹t),
and the carrier frequency is fc =1 MHz, Answer the following questions:
1) Evaluate the modulation depth m.
2) Draw the AM modulator circuit used to generate this AM signal.
3) Write the mathematical equation of modulated signal for the above values.
4) Sketch VAM(1) at the output of the modulator in the time domain.
5) Draw the double side frequency spectrum of the signal VAM (t).
6) Evaluate the efficiency (n) of this AM modulator.
Transcribed Image Text:A conventional amplitude modulator (AM), where m(t) is the analogue message, VDC 5 volt is an offset voltage and c(t) is the carrier signal. Let m(t) = 3 cos(2710¹t), and the carrier frequency is fc =1 MHz, Answer the following questions: 1) Evaluate the modulation depth m. 2) Draw the AM modulator circuit used to generate this AM signal. 3) Write the mathematical equation of modulated signal for the above values. 4) Sketch VAM(1) at the output of the modulator in the time domain. 5) Draw the double side frequency spectrum of the signal VAM (t). 6) Evaluate the efficiency (n) of this AM modulator.
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