RADIO RECEIVERS QUIZ

The output must be tuned

Leak-type bias must be used

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.

Diagonal clipping

Negative-peak clipping

Poor AGC operation

Poor AF response

It is a simpler piece of equipment

Its frequency stability is better

It is relatively free of spurious frequency

It does not require crystal oscillator

Image frequency rejection is very good

The local oscillator need not be extremely stable

The selectivity will be poor

Tracking will be improved

An increase in signal strength produces more AGC

The audio stage gain is normally controlled by the AGC

The faster the AGC time constant the more accurate the output

The highest AGC voltage is produced

Reducing the effect of noise at low modulation depths

Improving the effectiveness of the AGC

Improving the selectivity of the receiver

Reducing the effect of negative-peak clipping

Reduce the number of crystals required

Reduce the number of decades

Reduce the spurious frequency problem

Increase the frequency stability of the synthesizer

Single-sideband, reduced-carrier

ISB

Single-sideband, full-carrier

Single-sideband, suppressed-carrier

Is created within the receiver itself

Is due to insufficient adjacent channel rejection

Is not rejected be the IF tuned circuits

Is independent of the frequency to which the receiver is tuned

To help the image frequency rejection

To allow adequate frequency coverage without switching

To permit easier tracking

Because otherwise an intermediate frequency could not be produced