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 To prevent overloading of the IF amplifier in a receiver, one should use Variable selectivity Squelch Variable sensitivity Double conversion Variable selectivity Squelch Variable sensitivity Double conversion ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers The controlled oscillator synthesizer is sometimes preferred over the direct one because It is a simpler piece of equipment It is relatively free of spurious frequency Its frequency stability is better It does not require crystal oscillator It is a simpler piece of equipment It is relatively free of spurious frequency Its frequency stability is better It does not require crystal oscillator ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers Indicate the false statement. The superheterodyne receiver replaced the TRF receiver because the latter suffered from Insufficient gain and sensitivity Gain variation over the frequency coverage range Inadequate selectivity at high frequencies Instability Insufficient gain and sensitivity Gain variation over the frequency coverage range Inadequate selectivity at high frequencies Instability 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 Improving the selectivity of the receiver Reducing the effect of negative-peak clipping Improving the effectiveness of the AGC Reducing the effect of noise at low modulation depths Improving the selectivity of the receiver Reducing the effect of negative-peak clipping ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers One of the following cannot be used to demodulate SSB: Bipolar transistor balanced modulator Product detector Diode Balance modulator Complete phase-shift generator Bipolar transistor balanced modulator Product detector Diode Balance modulator Complete phase-shift generator ANSWER DOWNLOAD EXAMIANS APP
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