Radio Receivers Indicate which of the following statements about the advantages of the phase discriminator over the slope detector is false: Much easier alignment Fewer tuned circuits Better linearity Greater limiting Much easier alignment Fewer tuned circuits Better linearity Greater limiting ANSWER DOWNLOAD EXAMIANS APP
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 Increase the frequency stability of the synthesizer Reduce the number of decades Reduce the number of crystals required Reduce the spurious frequency problem Increase the frequency stability of the synthesizer Reduce the number of decades Reduce the number of crystals required ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers A receiver has poor IF selectivity. It will therefore also have poor Double-spotting Sensitivity Diversion reception Blocking Double-spotting Sensitivity Diversion reception Blocking ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers In a radio receiver with simple AGC An increase in signal strength produces more AGC The audio stage gain is normally controlled by the AGC The highest AGC voltage is produced The faster the AGC time constant the more accurate the output An increase in signal strength produces more AGC The audio stage gain is normally controlled by the AGC The highest AGC voltage is produced The faster the AGC time constant the more accurate the output ANSWER DOWNLOAD EXAMIANS APP
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 The local oscillator need not be extremely stable Image frequency rejection is very good The selectivity will be poor Tracking will be improved ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers To prevent overloading of the IF amplifier in a receiver, one should use Variable selectivity Double conversion Squelch Variable sensitivity Variable selectivity Double conversion Squelch Variable sensitivity ANSWER DOWNLOAD EXAMIANS APP
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