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Discussion :: Communication Systems

  1. Consider the following functions

    1. It detects the AM video carrier IF so as to produce the video signal
    2. It produces and separates out the inter carrier sound IF of 5.5 MHz
    3. It amplifies the video signal
    4. It amplifies the audio signal
    The video detector in a colour TV performs which of the above functions

    2. A.
    1, 2 and 3
    B.
    1, 2, 3 and 4
    C.
    1 and 2
    D.
    1, 2 and 4

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    Answer : Option C

    Explanation :

    Video detector does not amplify any signal.

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