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Define modulation index. Why is it gener...

Define modulation index. Why is it generally kept less than one ?

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The modulation index (or modulation depth) of a modulation scheme describes by how much the modulated variable of carrier signal varies around its unmodulated scheme.
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(a) If A and B represent the maximum amplitudes of an amplitude modulated wave, wrigte the expression for the modulation index in terms of A and B. (b) A message signal of frequency 20 kHz and peak voltage 10 V is used to modulate a carrier of frequency 2 MHz and peak voltage of 15 V. Calculate the modulation index. Why the modulation index is generally less than one ?

Define modulation index. Why is its value kept in practies, less than one ? A carrier wave of frequency 1.5 MHz and amplitude 50 V is moduclated by a sinusoidal wave of frequency 10KHz producing 50% ampitude moducation. Calculate the amplitude of the AM wave and frequencies of the side bands produced.

What is modulation index ?

RQ is less than one for

Define modulation and transducer.

In amplitude modulation, the modulation index mu, is kept less than or equal to 1 because.

Amplitude modulation index mu determines

Why is the amplitude of modulating signal kept less than the amplitude of carrier wave ?

XII BOARDS PREVIOUS YEAR-XII BOARDS-SECTION-A
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