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  1. A superheterodyne receiver is to operate in the frequency range 550 kHz - 1650 kHz, with the intermediate frequency of 450 kHz. Let denote the required capacitance ratio of the local oscillator and I denote the image frequency (in kHz) of the incoming signal. If the receiver is tuned to 700 kHz, then

    2. A.
    R = 4.41 J =1600
    B.
    R = 2.10 J =1150
    C.
    R = 3.0 J =1600
    D.
    R = 9.0 J =1150

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    Answer : Option A

    Explanation :

    Image frequency = 700 + 2 x 450 1600 kHz

    fmax = 1650 + 450 2100 kHz

    fmin = 550 kHz + 450 1000 kHz

    R = 4.41, I = 1600 kHz.

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