Radio Receivers Indicate which of the following circuits could not demodulate SSB: Balance modulator Phase discriminator Product modulator BFO Balance modulator Phase discriminator Product modulator BFO ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers If the intermediate frequency is very high (indicate false statement) Image frequency rejection is very good Tracking will be improved The selectivity will be poor The local oscillator need not be extremely stable Image frequency rejection is very good Tracking will be improved The selectivity will be poor The local oscillator need not be extremely stable 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 selectivity of the receiver Reducing the effect of noise at low modulation depths Improving the effectiveness of the AGC Reducing the effect of negative-peak clipping Improving the selectivity of the receiver Reducing the effect of noise at low modulation depths Improving the effectiveness of the AGC ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers The controlled oscillator synthesizer is sometimes preferred over the direct one because It does not require crystal oscillator It is relatively free of spurious frequency It is a simpler piece of equipment Its frequency stability is better It does not require crystal oscillator It is relatively free of spurious frequency It is a simpler piece of equipment Its frequency stability is better 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 900 kHz 1650 kHz 2100 kHz 750 kHz 900 kHz 1650 kHz 2100 kHz ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers A low ratio of the ac to the dc load impedance of a diode detector results in Negative-peak clipping Poor AF response Diagonal clipping Poor AGC operation Negative-peak clipping Poor AF response Diagonal clipping Poor AGC operation ANSWER DOWNLOAD EXAMIANS APP