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 Provide improved tracking Permit better adjacent-channel rejection Increase the tuning range of the receiver Improve the rejection of the image frequency Provide improved tracking Permit better adjacent-channel rejection ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers One of the following cannot be used to demodulate SSB: Product detector Bipolar transistor balanced modulator Complete phase-shift generator Diode Balance modulator Product detector Bipolar transistor balanced modulator Complete phase-shift generator Diode Balance modulator 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 Better linearity Fewer tuned circuits Greater limiting Much easier alignment Better linearity Fewer tuned circuits Greater limiting ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers If the intermediate frequency is very high (indicate false statement) The local oscillator need not be extremely stable Tracking will be improved Image frequency rejection is very good The selectivity will be poor The local oscillator need not be extremely stable Tracking will be improved Image frequency rejection is very good The selectivity will be poor ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers Indicate which of the following circuits could not demodulate SSB: BFO Balance modulator Product modulator Phase discriminator BFO Balance modulator Product modulator Phase discriminator 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 Diagonal clipping Poor AGC operation Poor AF response Negative-peak clipping Diagonal clipping Poor AGC operation Poor AF response ANSWER DOWNLOAD EXAMIANS APP
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