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





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  • By: guest on 01 Jun 2017 09.18 pm
    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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