Radio Receivers Indicate which of the following circuits could not demodulate SSB: Phase discriminator Product modulator Balance modulator BFO Phase discriminator Product modulator Balance modulator BFO 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 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 Reduce the spurious frequency problem 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 Reducing the effect of negative-peak clipping Improving the effectiveness of the AGC Improving the selectivity of the receiver Reducing the effect of noise at low modulation depths Reducing the effect of negative-peak clipping Improving the effectiveness of the AGC Improving the selectivity of the receiver Reducing the effect of noise at low modulation depths ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers One of the main functions of the RF amplifier in a superheterodyne receiver is to Increase the tuning range of the receiver Improve the rejection of the image frequency Permit better adjacent-channel rejection Provide improved tracking Increase the tuning range of the receiver Improve the rejection of the image frequency Permit better adjacent-channel rejection Provide improved tracking 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 750 kHz 2100 kHz 1650 kHz 900 kHz 750 kHz 2100 kHz 1650 kHz 900 kHz 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: Much easier alignment Greater limiting Fewer tuned circuits Better linearity Much easier alignment Greater limiting Fewer tuned circuits Better linearity ANSWER DOWNLOAD EXAMIANS APP
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