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Radio Receivers

Radio Receivers
A receiver has poor IF selectivity. It will therefore also have poor

Diversion reception
Double-spotting
Sensitivity
Blocking

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Radio Receivers
Indicate which of the following circuits could not demodulate SSB:

Product modulator
Phase discriminator
BFO
Balance modulator

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Radio Receivers
The image frequency of a superheterodyne receiver

Is due to insufficient adjacent channel rejection
Is independent of the frequency to which the receiver is tuned
Is not rejected be the IF tuned circuits
Is created within the receiver itself

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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
The selectivity will be poor
Tracking will be improved

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Radio Receivers
When a receiver has good blocking performance, this means that

Its detector suffers from burnout
It does not suffer from double-spotting
It is unaffected by AGC derived from nearby transmissions
Its image frequency rejection is poor

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Radio Receivers
Three-point tracking is achieved with

Double conversion
The padder capacitor
Variable selectivity
Double spotting

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MORE MCQ ON Radio Receivers

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