GATE EC 2024 Set 1 — Question 28
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Communications → Analog Communications → AM Modulation & Demodulation
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Question
An amplitude modulator has output (in Volts)The carrier power normalized to resistance is 50 Watts. The ratio of the total sideband power to the total power is 1/9. The value of (in Volts, rounded off to two decimal places) is _______ .
Correct answer
2.49 to 2.51
Solution
The output of the amplitude modulator is given by:The carrier term is with frequency Hz. The sideband terms are and .
1.Carrier Power ():
2.Total Sideband Power ():
3.Total Power ():
4.Given Ratio:
The value of is 2.50.Continue learning with Success Tracker
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