Radio Receivers
When a receiver has good blocking performance, this means that

Its detector suffers from burnout
It is unaffected by AGC derived from nearby transmissions
It does not suffer from double-spotting
Its image frequency rejection is poor

ANSWER DOWNLOAD EXAMIANS APP

Radio Receivers
If a FET is used as the first AF amplifier in a transistor receiver, this will have the effect of

Reducing the effect of noise at low modulation depths
Improving the effectiveness of the AGC
Reducing the effect of negative-peak clipping
Improving the selectivity of the receiver

ANSWER DOWNLOAD EXAMIANS APP