Question

In a broadcast superheterodynes receiver having no RF amplifier, the loaded Q of the antenna coupling circuit is 100. If the intermediate frequency is 455 kHz. The image frequency at 25 MHz will be?​

Answer 1

a) image rejection ratio (IR) = 128

b)image rejection ratio (IR) =5.23

Thus rejection is poor in practical receiver in HF band.

pls check ANS.........