railway RRB JE (CBT I + CBT II) Mock Test 2024 Communication Systems Receivers Classification of Receivers
In an AM system receiver. the mixer translates the carrier frequency fc to a fixed intermediate frequency of 450 kHz. Given a broadcast signal of frequency 900 kHz. What is the corresponding image frequency when a superhetrodyne receiver is employed with local oscillator frequency greater than the broadcast signal frequency?
1
900 kHz
2
1800 kHz
3
800 kHz
4
1350 kHz