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Discussion :: Exam Questions Paper

  1. In amplitude modulation, carrier signals A cos ωt has its amplitude A modulated in proportion with message bearing (low frequency) signal m(t). The magnitude of m(t) is chosen to be __________ .

    2. A.
    less than 1
    B.
    less than or equal to 1
    C.
    more than 1
    D.
    none of these

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    Answer : Option B

    Explanation :

    For proper recovery of signal |m(t)| ≤ 1.

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