The superheterodyne receiver design is superior to the TRF design:
A) since it uses many RF amplifier stages before the RF signal is mixed with the local oscillator signal.
B) since it allows for a constant selectivity over the entire tuning range of the receiver.
C) since it always uses synchronous detectors instead of diode detectors.
D) all of the above

Question

Quizplus · Accepted Answer

The superheterodyne receiver design is considered superior to the TRF (Tuned Radio Frequency) design primarily because it allows for constant selectivity over the entire tuning range of the receiver. This is achieved by converting all received signals to a common intermediate frequency (IF), where fixed-bandwidth filters can be used.

The Superheterodyne Receiver Design Is Superior to the TRF Design