(a) A super-heterodyne receiver is tuned to receive a 1 MHz carrier amplitude by 1 KHz sine wave. It is also assumed that the IF frequency is 455 KHz . Find the frequency components at the input and output of the IF amplifier. Assume the IF bandwidth to be 10 KHz . Plot the spectrum also.
Explanation
The IF amplifier rejects the image frequency and allows only the desired frequency to pass through, improving the selectivity of the receiver.
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