Radio Receivers One of the following cannot be used to demodulate SSB: Diode Balance modulator Product detector Bipolar transistor balanced modulator Complete phase-shift generator Diode Balance modulator Product detector Bipolar transistor balanced modulator Complete phase-shift generator ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers Indicate the false statement. Noting that no carrier is transmitter with J3E, we see that Production of AGC is a rather complicated process The receiver cannot use a phase comparator for AFC Adjacent-channel rejection is more difficult The transmission is not compatible with A3E Production of AGC is a rather complicated process The receiver cannot use a phase comparator for AFC Adjacent-channel rejection is more difficult The transmission is not compatible with A3E ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers If the intermediate frequency is very high (indicate false statement) Tracking will be improved The selectivity will be poor Image frequency rejection is very good The local oscillator need not be extremely stable Tracking will be improved The selectivity will be poor Image frequency rejection is very good The local oscillator need not be extremely stable 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 noise at low modulation depths Improving the selectivity of the receiver Improving the effectiveness of the AGC Reducing the effect of negative-peak clipping Reducing the effect of noise at low modulation depths Improving the selectivity of the receiver Improving the effectiveness of the AGC Reducing the effect of negative-peak clipping ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers A receiver has poor IF selectivity. It will therefore also have poor Diversion reception Double-spotting Blocking Sensitivity Diversion reception Double-spotting Blocking Sensitivity ANSWER DOWNLOAD EXAMIANS APP
Radio Receivers Indicate the false statement in connection with communications receivers. Double conversion is used to improve image rejection Variable sensitivity is used to eliminate selective fading A product demodulator could be used for the reception of Morse code. The noise limiter cuts off the receiver’s output during a noise pulse. Double conversion is used to improve image rejection Variable sensitivity is used to eliminate selective fading A product demodulator could be used for the reception of Morse code. The noise limiter cuts off the receiver’s output during a noise pulse. ANSWER DOWNLOAD EXAMIANS APP
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