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Analog Communication System MCQs

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Practice free Analog Communication System multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 280 questions — no login required.

Question 28easy

Pilot-carrier transmission is one in which

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Question 29easy

The main function of a balanced modulator is to

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Question 30easy

The amplitude of an audio-signal is 10 and that of the carrier wave is 50. Percentage modulation is

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Question 31easy

A bandwidth of 20 MHz is available for AM transmission. If the highest audio-frequency used to modulate the carrier waves is not to exceed 5 kHz, the number of stations that can broadcast simulteneously within this band without interfering with each other is

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Question 32easy

The total power content of an AM signal with 100% modulation is 1200 W. Power being transmitted at each sideband is watt.

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Question 33easy

If the power content of a carrier of an AM wave is 4 kW at a percentage modulation of 80%, power content of,each sideband is kW.

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Question 34easy

The power content of a sideband of an AM wave with 60% modulation is 720W. If modulation is increased to 80%,sideband power will become watt.

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Question 35easy

The total power content of an AM wave is 600 W. If each sideband contains 100W, percentage modulation is

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Question 36easy

A single-sideband (SSB) signal contains 3 kW. The power content of the carrier is kW.

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