Communication Systems A modem is classified as low speed if data rate handled is Upto 250 bps Upto 400 bps Upto 100 bps Upto 600 bps Upto 250 bps Upto 400 bps Upto 100 bps Upto 600 bps ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A telephone channel requires a bandwidth of about 50 kHz 1 kHz 10 kHz 3 kHz 50 kHz 1 kHz 10 kHz 3 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Circular polarization None of these Is useful in discrimination between reception of adjacent beams Involves critical alignment of transmitting and receiving antenna Is useful in reducing depolarization effect on received wave None of these Is useful in discrimination between reception of adjacent beams Involves critical alignment of transmitting and receiving antenna Is useful in reducing depolarization effect on received wave ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following is an indirect way of generating FM? Reactance FET modulator Varactor diode modulator Reactance bipolar transistor Armstrong modulator Reactance FET modulator Varactor diode modulator Reactance bipolar transistor Armstrong modulator ANSWER DOWNLOAD EXAMIANS APP
Communication Systems As per Shannon-Hartley theorem, a noise less Gaussian channel has Small capacity None of these Infinite capacity Zero capacity Small capacity None of these Infinite capacity Zero capacity ANSWER DOWNLOAD EXAMIANS APP
Communication Systems What is the purpose of peak clipper circuits in radio transmitters? To increase bandwidth To prevent overmodulation To regulate oscillator I/P voltage To reduce bandwidth To increase bandwidth To prevent overmodulation To regulate oscillator I/P voltage To reduce bandwidth ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS