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Discussion :: Communication Systems

  1. Some possible disadvantages of high level modulation in TV transmitters are

    1. Video monitor has to supply high video voltages upto several hundred volts into highly capacitive loads drawing high current at video frequencies
    2. The grid modulated stage presents a varying load to its driver
    3. The linearity and high video driving power present design problems
    Out of above which are true?

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

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    Answer : Option C

    Explanation :

    All these are true.

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