Communication Systems What is the purpose of peak clipper circuits in radio transmitters? To reduce bandwidth To prevent overmodulation To regulate oscillator I/P voltage To increase bandwidth To reduce bandwidth To prevent overmodulation To regulate oscillator I/P voltage To increase bandwidth 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 Neither A nor B Duplex arrangement Either A or B Half duplex arrangement Neither A nor B Duplex arrangement Either A or B ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following is an indirect way of generating FM? Reactance bipolar transistor Armstrong modulator Reactance FET modulator Varactor diode modulator Reactance bipolar transistor Armstrong modulator Reactance FET modulator Varactor diode modulator ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Under ordinary circumstances, impulse noise can be reduced in FM only AM only Both AM and FM None of these FM only AM only Both AM and FM None of these ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following is used to generate PDM? Free running multi-vibrator JK flip-flop Schmitt trigger Monostable multi-vibrator Free running multi-vibrator JK flip-flop Schmitt trigger Monostable multi-vibrator ANSWER DOWNLOAD EXAMIANS APP
Communication Systems If in a broadcasting studio, a 1000 kHz carrier is modulated by an audio signal of frequency range 100-5000 kHz, the width of channel is __________ kHz. 10 4.9 995 5 10 4.9 995 5 ANSWER DOWNLOAD EXAMIANS APP
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