Radio Receivers Indicate which of the following statements about the advantages of the phase discriminator over the slope detector is false: Fewer tuned circuits Better linearity Much easier alignment Greater limiting Fewer tuned circuits Better linearity Much easier alignment Greater limiting ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers In a ratio detector stabilization against signal strength variations is provided the linearity is worse than in phase discriminator 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 stabilization against signal strength variations is provided the linearity is worse than in phase discriminator 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 ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers The typical squelch circuit cuts off RF interference when the signal is weak an audio amplifier when the carrier is absent An IF amplifier when the AGC is maximum An IF amplifier when the AGC is minimum RF interference when the signal is weak an audio amplifier when the carrier is absent An IF amplifier when the AGC is maximum An IF amplifier when the AGC is minimum ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers Indicate the false statement. Noting that no carrier is transmitter with J3E, we see that The receiver cannot use a phase comparator for AFC Adjacent-channel rejection is more difficult Production of AGC is a rather complicated process The transmission is not compatible with A3E The receiver cannot use a phase comparator for AFC Adjacent-channel rejection is more difficult Production of AGC is a rather complicated process The transmission is not compatible with A3E ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers Indicate which of the following circuits could not demodulate SSB: Product modulator Balance modulator BFO Phase discriminator Product modulator Balance modulator BFO Phase discriminator ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers Indicate the false statement in connection with communications receivers. Variable sensitivity is used to eliminate selective fading A product demodulator could be used for the reception of Morse code. The noise limiter cuts off the receiver’s output during a noise pulse. Double conversion is used to improve image rejection Variable sensitivity is used to eliminate selective fading A product demodulator could be used for the reception of Morse code. The noise limiter cuts off the receiver’s output during a noise pulse. Double conversion is used to improve image rejection ANSWER DOWNLOAD EXAMIANS APP
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