Radio Receivers
The image frequency of a superheterodyne receiver

Is not rejected be the IF tuned circuits
Is created within the receiver itself
Is due to insufficient adjacent channel rejection
Is independent of the frequency to which the receiver is tuned

ANSWER DOWNLOAD EXAMIANS APP

Radio Receivers
In a broadcast superheterodyne receiver, the

RF amplifier normally works at 455 kHz above the carrier frequency
Local oscillator operates below the signal frequency
Local oscillator frequency is normally double the IF
Mixer input must be tuned to the signal frequency

ANSWER DOWNLOAD EXAMIANS APP

Radio Receivers
In a radio receiver with simple AGC

An increase in signal strength produces more AGC
The audio stage gain is normally controlled by the AGC
The highest AGC voltage is produced
The faster the AGC time constant the more accurate the output

ANSWER DOWNLOAD EXAMIANS APP