Radio Receivers
An AM receiver uses a diode detector for demodulation. This enables it satisfactorily to receive

Single-sideband, full-carrier
ISB
Single-sideband, suppressed-carrier
Single-sideband, reduced-carrier

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Radio Receivers
If a FET is used as the first AF amplifier in a transistor receiver, this will have the effect of

Reducing the effect of negative-peak clipping
Improving the selectivity of the receiver
Improving the effectiveness of the AGC
Reducing the effect of noise at low modulation depths

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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
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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