Radio Receivers Indicate the false statement. The superheterodyne receiver replaced the TRF receiver because the latter suffered from Gain variation over the frequency coverage range Instability Inadequate selectivity at high frequencies Insufficient gain and sensitivity Gain variation over the frequency coverage range Instability Inadequate selectivity at high frequencies Insufficient gain and sensitivity ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers An AM receiver uses a diode detector for demodulation. This enables it satisfactorily to receive Single-sideband, reduced-carrier ISB Single-sideband, full-carrier Single-sideband, suppressed-carrier Single-sideband, reduced-carrier ISB Single-sideband, full-carrier Single-sideband, suppressed-carrier ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers A low ratio of the ac to the dc load impedance of a diode detector results in Diagonal clipping Poor AF response Negative-peak clipping Poor AGC operation Diagonal clipping Poor AF response Negative-peak clipping Poor AGC operation ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers In a ratio detector the linearity is worse than in phase discriminator the output is twice that obtainable from a similar phase discriminator stabilization against signal strength variations is provided the circuit is the same as in a discriminator, except that the diodes are reversed the linearity is worse than in phase discriminator the output is twice that obtainable from a similar phase discriminator stabilization against signal strength variations is provided the circuit is the same as in a discriminator, except that the diodes are reversed ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers To prevent overloading of the IF amplifier in a receiver, one should use Variable sensitivity Variable selectivity Squelch Double conversion Variable sensitivity Variable selectivity Squelch Double conversion 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 Reduce the number of crystals required Increase the frequency stability of the synthesizer Reduce the spurious frequency problem Reduce the number of decades Reduce the number of crystals required Increase the frequency stability of the synthesizer Reduce the spurious frequency problem Reduce the number of decades ANSWER DOWNLOAD EXAMIANS APP
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