Radio Receivers One of the following cannot be used to demodulate SSB: Diode Balance modulator Bipolar transistor balanced modulator Product detector Complete phase-shift generator Diode Balance modulator Bipolar transistor balanced modulator Product detector Complete phase-shift generator ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers When a receiver has good blocking performance, this means that Its detector suffers from burnout Its image frequency rejection is poor It is unaffected by AGC derived from nearby transmissions It does not suffer from double-spotting Its detector suffers from burnout Its image frequency rejection is poor 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 circuits could not demodulate SSB: Product modulator Balance modulator Phase discriminator BFO Product modulator Balance modulator Phase discriminator BFO ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers A superheterodyne receiver with an IF of 450 kHz is tuned to a signal at 1200 kHz. The image frequency is 2100 kHz 1650 kHz 900 kHz 750 kHz 2100 kHz 1650 kHz 900 kHz 750 kHz ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers If a FET is used as the first AF amplifier in a transistor receiver, this will have the effect of Improving the effectiveness of the AGC Reducing the effect of noise at low modulation depths Reducing the effect of negative-peak clipping Improving the selectivity of the receiver Improving the effectiveness of the AGC Reducing the effect of noise at low modulation depths Reducing the effect of negative-peak clipping Improving the selectivity of the receiver ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers Indicate the false statement. The superheterodyne receiver replaced the TRF receiver because the latter suffered from Instability Insufficient gain and sensitivity Inadequate selectivity at high frequencies Gain variation over the frequency coverage range Instability Insufficient gain and sensitivity Inadequate selectivity at high frequencies Gain variation over the frequency coverage range ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS