Radio Receivers Show which of the following statements about the amplitude limiter is untrue: The output must be tuned The circuit is always biased in class C, by virtue of the leak-type bias. Leak-type bias must be used When the input increases past the threshold of the limiting, the gain decreases to keep the output constant. The output must be tuned The circuit is always biased in class C, by virtue of the leak-type bias. Leak-type bias must be used When the input increases past the threshold of the limiting, the gain decreases to keep the output constant. ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers A receiver has poor IF selectivity. It will therefore also have poor Double-spotting Sensitivity Diversion reception Blocking Double-spotting Sensitivity Diversion reception Blocking ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers If the intermediate frequency is very high (indicate false statement) The selectivity will be poor Tracking will be improved The local oscillator need not be extremely stable Image frequency rejection is very good The selectivity will be poor Tracking will be improved The local oscillator need not be extremely stable Image frequency rejection is very good ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers Indicate which of the following circuits could not demodulate SSB: BFO Phase discriminator Product modulator Balance modulator BFO Phase discriminator Product modulator Balance modulator ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers One of the following cannot be used to demodulate SSB: Bipolar transistor balanced modulator Diode Balance modulator Product detector Complete phase-shift generator Bipolar transistor balanced modulator Diode Balance modulator Product detector Complete phase-shift generator ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers An AM receiver uses a diode detector for demodulation. This enables it satisfactorily to receive ISB Single-sideband, suppressed-carrier Single-sideband, reduced-carrier Single-sideband, full-carrier ISB Single-sideband, suppressed-carrier Single-sideband, reduced-carrier Single-sideband, full-carrier ANSWER DOWNLOAD EXAMIANS APP
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