Frequency Modulation (FM) versus Amplitude Modulation (AM)

Author:Kumar Mittal
12th ICSE
IMPORTANT

Important Questions on Frequency Modulation (FM) versus Amplitude Modulation (AM)

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IMPORTANT

An amplitude modulated signal is given by Vt=101+0.3 cos2.2×104tsin5.5×105t. Here t is in seconds. The side-band frequencies (in kHz) are: (Given π=22/7).

EASY
IMPORTANT

Compare frequency modulation and amplitude modulation. Explain why FM signal is less susceptible to noise than AM signal.

MEDIUM
IMPORTANT

Distinguish between frequency modulation and amplitude modulation. Why is FM signal less susceptive to noise than an AM signal?

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What is amplitude modulation? Distinguish one difference between frequency modulation and amplitude modulation. 

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IMPORTANT

Draw a block diagram of simple amplitude modulation. Explain briefly how amplitude modulation is achieved?

EASY
IMPORTANT

In the given block diagram of a receiver, identify the boxes labelled as X and Y and write their functions.

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Why is an FM signal less susceptible to noise than an AM signal?

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What are the disadvantages of FM transmission as compared to AM transmission?

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State advantages of FM transmission. Why is frequency modulation (FM) preferred over amplitude modulation (AM) for transmission of music?

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IMPORTANT

What does vary in frequency modulation (FM), carrier amplitude or carrier frequency?