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 5 995 10 4.9 5 995 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A modem is classified as low speed if data rate handled is Upto 600 bps Upto 250 bps Upto 100 bps Upto 400 bps Upto 600 bps Upto 250 bps Upto 100 bps Upto 400 bps ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following is used to generate PDM? Free running multi-vibrator Monostable multi-vibrator JK flip-flop Schmitt trigger Free running multi-vibrator Monostable multi-vibrator JK flip-flop Schmitt trigger ANSWER DOWNLOAD EXAMIANS APP
Communication Systems When the length of antenna is a whole wavelength The radiation is zero in all directions The radiation is maximum in all directions The radiation at right angles is maximum The radiation at right angles is zero The radiation is zero in all directions The radiation is maximum in all directions The radiation at right angles is maximum The radiation at right angles is zero ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For a low level AM system, the amplifiers modulated stage must be Non-linear devices Harmonic devices Class C amplifiers Linear devices Non-linear devices Harmonic devices Class C amplifiers Linear devices 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
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