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  1. The number of channels available in MF band (300 kHz - 3 MHz) for AM modulating signal of 20 kHz is

    2. A.
    70
    B.
    67
    C.
    100
    D.
    150

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    Answer : Option B

    Explanation :

    In MF band, frequency space available

    = 3000 - 300 2700 kHz

    when AM is used Bandwidth of each channel.

    = 2 x 20 kHz = 40 kHz

    .

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