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 One of the following cannot be used to demodulate SSB: Bipolar transistor balanced modulator Complete phase-shift generator Product detector Diode Balance modulator Bipolar transistor balanced modulator Complete phase-shift generator Product detector Diode Balance modulator ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers A receiver has poor IF selectivity. It will therefore also have poor Blocking Double-spotting Diversion reception Sensitivity Blocking Double-spotting Diversion reception Sensitivity ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers The local oscillator of a broadcast receiver is tuned to a frequency higher than the incoming frequency To permit easier tracking To help the image frequency rejection To allow adequate frequency coverage without switching Because otherwise an intermediate frequency could not be produced To permit easier tracking To help the image frequency rejection To allow adequate frequency coverage without switching Because otherwise an intermediate frequency could not be produced 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 900 kHz 2100 kHz 1650 kHz 750 kHz 900 kHz 2100 kHz 1650 kHz 750 kHz 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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