Radio Receivers Indicate the false statement in connection with communications receivers. Double conversion is used to improve image rejection A product demodulator could be used for the reception of Morse code. Variable sensitivity is used to eliminate selective fading The noise limiter cuts off the receiver’s output during a noise pulse. Double conversion is used to improve image rejection A product demodulator could be used for the reception of Morse code. Variable sensitivity is used to eliminate selective fading The noise limiter cuts off the receiver’s output during a noise pulse. ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers In a radio receiver with simple AGC An increase in signal strength produces more AGC The highest AGC voltage is produced The audio stage gain is normally controlled by the AGC The faster the AGC time constant the more accurate the output An increase in signal strength produces more AGC The highest AGC voltage is produced The audio stage gain is normally controlled by the AGC The faster the AGC time constant the more accurate the output 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 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 Reduce the spurious frequency problem Increase the frequency stability of the synthesizer ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers Three-point tracking is achieved with Double conversion Variable selectivity The padder capacitor Double spotting Double conversion Variable selectivity The padder capacitor Double spotting ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers An AM receiver uses a diode detector for demodulation. This enables it satisfactorily to receive Single-sideband, reduced-carrier ISB Single-sideband, suppressed-carrier Single-sideband, full-carrier Single-sideband, reduced-carrier ISB Single-sideband, suppressed-carrier Single-sideband, full-carrier ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers The typical squelch circuit cuts off An IF amplifier when the AGC is maximum RF interference when the signal is weak An IF amplifier when the AGC is minimum an audio amplifier when the carrier is absent An IF amplifier when the AGC is maximum RF interference when the signal is weak An IF amplifier when the AGC is minimum an audio amplifier when the carrier is absent ANSWER DOWNLOAD EXAMIANS APP
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