Q. 78 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
(A) R = 4.41, I = 1600
(B) R = 2.10, I – 1150
(C) R = 3.0, I = 600
(D) R = 9.0, I = 1150
Answer: (A)
Explanation: