Radio Receivers
If the intermediate frequency is very high (indicate false statement)

Image frequency rejection is very good
The selectivity will be poor
Tracking will be improved
The local oscillator need not be extremely stable

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

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

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Radio Receivers
In a ratio detector

the output is twice that obtainable from a similar phase discriminator
the linearity is worse than in phase discriminator
stabilization against signal strength variations is provided
the circuit is the same as in a discriminator, except that the diodes are reversed

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