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Radio Receivers
Indicate which of the following circuits could not demodulate SSB:
Phase discriminator
BFO
Balance modulator
Product modulator
Phase discriminator
BFO
Balance modulator
Product modulator
Answer
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Related Question
Radio Receivers
A receiver has poor IF selectivity. It will therefore also have poor
Blocking
Double-spotting
Sensitivity
Diversion reception
Blocking
Double-spotting
Sensitivity
Diversion reception
Answer
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Radio Receivers
A low ratio of the ac to the dc load impedance of a diode detector results in
Poor AF response
Poor AGC operation
Diagonal clipping
Negative-peak clipping
Poor AF response
Poor AGC operation
Diagonal clipping
Negative-peak clipping
Answer
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Radio Receivers
The frequency generated by each decade in a direct frequency synthesizer is much higher than the frequency shown; this is done to
Reduce the spurious frequency problem
Reduce the number of decades
Increase the frequency stability of the synthesizer
Reduce the number of crystals required
Reduce the spurious frequency problem
Reduce the number of decades
Increase the frequency stability of the synthesizer
Reduce the number of crystals required
Answer
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Radio Receivers
Indicate the false statement. Noting that no carrier is transmitter with J3E, we see that
Production of AGC is a rather complicated process
The transmission is not compatible with A3E
The receiver cannot use a phase comparator for AFC
Adjacent-channel rejection is more difficult
Production of AGC is a rather complicated process
The transmission is not compatible with A3E
The receiver cannot use a phase comparator for AFC
Adjacent-channel rejection is more difficult
Answer
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Radio Receivers
If the intermediate frequency is very high (indicate false statement)
The selectivity will be poor
The local oscillator need not be extremely stable
Image frequency rejection is very good
Tracking will be improved
The selectivity will be poor
The local oscillator need not be extremely stable
Image frequency rejection is very good
Tracking will be improved
Answer
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