Communication Systems A buffer amplifier is A high gain D.C. amplifier A double-tuned amplifier None of these A cathode follower stage A high gain D.C. amplifier A double-tuned amplifier None of these A cathode follower stage ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A modem is classified as low speed if data rate handled is Upto 400 bps Upto 600 bps Upto 100 bps Upto 250 bps Upto 400 bps Upto 600 bps Upto 100 bps Upto 250 bps ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A cordless telephone using separate frequencies for transmission in base and portable units is known as Half duplex arrangement Either A or B Duplex arrangement Neither A nor B Half duplex arrangement Either A or B Duplex arrangement Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which one of the following is analog? Differential PCM Delta modulation PWM PCM Differential PCM Delta modulation PWM PCM ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following is an indirect way of generating FM? Armstrong modulator Varactor diode modulator Reactance bipolar transistor Reactance FET modulator Armstrong modulator Varactor diode modulator Reactance bipolar transistor Reactance FET modulator ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A three stage telephone switching structure is to have 128 input and 128 output terminals. There are 16 first stage and 16 third stage matrices. To avoid blocking the number of intermediate paths required is 16 1 15 8 16 1 15 8 ANSWER DOWNLOAD EXAMIANS APP
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