Radio Receivers
Indicate which of the following statements about the advantages of the phase discriminator over the slope detector is false:

Much easier alignment
Fewer tuned circuits
Greater limiting
Better linearity

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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 broadcast superheterodyne receiver, the

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

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