An amplitude modulated signal is given by: S(t) = 10cos(2π × 106t) + 5cos(2π × 106t)cos(2π × 103t) + 2cos(2π × 106t)cos(4π × 103t) The effective modulation index is:

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This question belongs to Electronics And Communications Engineering Communication Systems

Communication Systems

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An amplitude modulated signal is given by:
S(t) = 10cos(2π × 10⁶t) + 5cos(2π × 10⁶t)cos(2π × 10³t) + 2cos(2π × 10⁶t)cos(4π × 10³t)
The effective modulation index is:

A) 0.538 B) 0.5 C) 0.2 D) 0.7

Answer & Solution

Correct Answer: Option A

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