Radio Receivers Indicate the false statement. The superheterodyne receiver replaced the TRF receiver because the latter suffered from Inadequate selectivity at high frequencies Gain variation over the frequency coverage range Insufficient gain and sensitivity Instability Inadequate selectivity at high frequencies Gain variation over the frequency coverage range Insufficient gain and sensitivity Instability ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers A low ratio of the ac to the dc load impedance of a diode detector results in Poor AGC operation Diagonal clipping Poor AF response Negative-peak clipping Poor AGC operation Diagonal clipping Poor AF response Negative-peak clipping ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers One of the following cannot be used to demodulate SSB: Product detector Complete phase-shift generator Bipolar transistor balanced modulator Diode Balance modulator Product detector Complete phase-shift generator Bipolar transistor balanced modulator Diode Balance modulator ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers The typical squelch circuit cuts off An IF amplifier when the AGC is minimum An IF amplifier when the AGC is maximum an audio amplifier when the carrier is absent RF interference when the signal is weak An IF amplifier when the AGC is minimum An IF amplifier when the AGC is maximum an audio amplifier when the carrier is absent RF interference when the signal is weak ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers When a receiver has good blocking performance, this means that Its image frequency rejection is poor Its detector suffers from burnout It is unaffected by AGC derived from nearby transmissions It does not suffer from double-spotting Its image frequency rejection is poor Its detector suffers from burnout It is unaffected by AGC derived from nearby transmissions It does not suffer from double-spotting ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers Indicate which of the following statements about the advantages of the phase discriminator over the slope detector is false: Greater limiting Much easier alignment Fewer tuned circuits Better linearity Greater limiting Much easier alignment Fewer tuned circuits Better linearity ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS