Radio Receivers
The image frequency of a superheterodyne receiver

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

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Radio Receivers
In a radio receiver with simple AGC

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

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Radio Receivers
Indicate the false statement in connection with communications receivers.

A product demodulator could be used for the reception of Morse code.
The noise limiter cuts off the receiver’s output during a noise pulse.
Double conversion is used to improve image rejection
Variable sensitivity is used to eliminate selective fading

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