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Discussion :: Communication Systems

  1. In PAL system weighting of R - Y and B - Y signals is done to

  2. A.
    prevent over modulation on saturated colours
    B.
    prevent under modulation of saturated colours
    C.
    allow over modulation of saturated colours
    D.
    allow under modulation on saturated colours

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    Answer : Option A

    Explanation :

    Weighting reduces the chances of over-modulation of the transmitter carrier in the presence of highly saturated colours when picture has very light or very dark parts.


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