Communication Systems Circular polarization Is useful in reducing depolarization effect on received wave Is useful in discrimination between reception of adjacent beams None of these Involves critical alignment of transmitting and receiving antenna Is useful in reducing depolarization effect on received wave Is useful in discrimination between reception of adjacent beams None of these Involves critical alignment of transmitting and receiving antenna ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following is an indirect way of generating FM? Varactor diode modulator Reactance FET modulator Reactance bipolar transistor Armstrong modulator Varactor diode modulator Reactance FET modulator Reactance bipolar transistor Armstrong modulator ANSWER DOWNLOAD EXAMIANS APP
Communication Systems The disadvantage of FM over AM is that Noise is very high for high frequency High modulating power is needed High output power is needed Large bandwidth is required Noise is very high for high frequency High modulating power is needed High output power is needed Large bandwidth is required ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Fourier analysis indicate that a square wave can be represented as Fundamental and subharmonic sine waves A fundamental sine wave and odd harmonics A fundamental sine wave and harmonics A fundamental sine wave and even harmonics Fundamental and subharmonic sine waves A fundamental sine wave and odd harmonics A fundamental sine wave and harmonics A fundamental sine wave and even harmonics ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In TV systems, equalising pulses are sent during Vertical blanking Horizontal retrace Serrations Horizontal blanking Vertical blanking Horizontal retrace Serrations Horizontal blanking ANSWER DOWNLOAD EXAMIANS APP
Communication Systems In a TV receiver antenna the length of reflector rod Is more than that of dipole May be equal, more or less than that of dipole Is less than that of dipole Is the same as that of dipole Is more than that of dipole May be equal, more or less than that of dipole Is less than that of dipole Is the same as that of dipole ANSWER DOWNLOAD EXAMIANS APP
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