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Radio Receivers
The image frequency of a superheterodyne receiver
Is created within the receiver itself
Is not rejected be the IF tuned circuits
Is due to insufficient adjacent channel rejection
Is independent of the frequency to which the receiver is tuned
Is created within the receiver itself
Is not rejected be the IF tuned circuits
Is due to insufficient adjacent channel rejection
Is independent of the frequency to which the receiver is tuned
Answer
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Related Question
Radio Receivers
An AM receiver uses a diode detector for demodulation. This enables it satisfactorily to receive
Single-sideband, reduced-carrier
Single-sideband, suppressed-carrier
Single-sideband, full-carrier
ISB
Single-sideband, reduced-carrier
Single-sideband, suppressed-carrier
Single-sideband, full-carrier
ISB
Answer
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Radio Receivers
One of the main functions of the RF amplifier in a superheterodyne receiver is to
Provide improved tracking
Permit better adjacent-channel rejection
Increase the tuning range of the receiver
Improve the rejection of the image frequency
Provide improved tracking
Permit better adjacent-channel rejection
Increase the tuning range of the receiver
Improve the rejection of the image frequency
Answer
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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
Improving the selectivity of the receiver
Reducing the effect of noise at low modulation depths
Improving the effectiveness of the AGC
Reducing the effect of negative-peak clipping
Improving the selectivity of the receiver
Reducing the effect of noise at low modulation depths
Improving the effectiveness of the AGC
Reducing the effect of negative-peak clipping
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
In a ratio detector
stabilization against signal strength variations is provided
the output is twice that obtainable from a similar phase discriminator
the circuit is the same as in a discriminator, except that the diodes are reversed
the linearity is worse than in phase discriminator
stabilization against signal strength variations is provided
the output is twice that obtainable from a similar phase discriminator
the circuit is the same as in a discriminator, except that the diodes are reversed
the linearity is worse than in phase discriminator
Answer
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