Radio Receivers
The image frequency of a superheterodyne receiver

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

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Radio Receivers
Show which of the following statements about the amplitude limiter is untrue:

The output must be tuned
The circuit is always biased in class C, by virtue of the leak-type bias.
When the input increases past the threshold of the limiting, the gain decreases to keep the output constant.
Leak-type bias must be used

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