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Radio Receivers
Radio Receivers
Indicate which of the following statements about the advantages of the phase discriminator over the slope detector is false:
Greater limiting
Fewer tuned circuits
Better linearity
Much easier alignment
Greater limiting
Fewer tuned circuits
Better linearity
Much easier alignment
Answer
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Radio Receivers
One of the following cannot be used to demodulate SSB:
Product detector
Diode Balance modulator
Complete phase-shift generator
Bipolar transistor balanced modulator
Product detector
Diode Balance modulator
Complete phase-shift generator
Bipolar transistor balanced modulator
Answer
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Radio Receivers
If the intermediate frequency is very high (indicate false statement)
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
The selectivity will be poor
Answer
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Radio Receivers
Indicate which of the following circuits could not demodulate SSB:
Balance modulator
BFO
Phase discriminator
Product modulator
Balance modulator
BFO
Phase discriminator
Product modulator
Answer
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Radio Receivers
A low ratio of the ac to the dc load impedance of a diode detector results in
Diagonal clipping
Poor AF response
Poor AGC operation
Negative-peak clipping
Diagonal clipping
Poor AF response
Poor AGC operation
Negative-peak clipping
Answer
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