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
Radio Receivers The typical squelch circuit cuts off RF interference when the signal is weak an audio amplifier when the carrier is absent An IF amplifier when the AGC is minimum An IF amplifier when the AGC is maximum RF interference when the signal is weak an audio amplifier when the carrier is absent An IF amplifier when the AGC is minimum An IF amplifier when the AGC is maximum ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers Three-point tracking is achieved with The padder capacitor Double conversion Variable selectivity Double spotting The padder capacitor Double conversion Variable selectivity Double spotting 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 Reducing the effect of noise at low modulation depths Improving the effectiveness of the AGC Improving the selectivity of the receiver Reducing the effect of negative-peak clipping Reducing the effect of noise at low modulation depths Improving the effectiveness of the AGC Improving the selectivity of the receiver ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers An AM receiver uses a diode detector for demodulation. This enables it satisfactorily to receive Single-sideband, suppressed-carrier ISB Single-sideband, reduced-carrier Single-sideband, full-carrier Single-sideband, suppressed-carrier ISB Single-sideband, reduced-carrier Single-sideband, full-carrier ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers A low ratio of the ac to the dc load impedance of a diode detector results in Poor AF response Poor AGC operation Diagonal clipping Negative-peak clipping Poor AF response Poor AGC operation Diagonal clipping Negative-peak clipping ANSWER DOWNLOAD EXAMIANS APP
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