Communication Systems Fourier analysis indicate that a square wave can be represented as A fundamental sine wave and even harmonics Fundamental and subharmonic sine waves A fundamental sine wave and harmonics A fundamental sine wave and odd harmonics A fundamental sine wave and even harmonics Fundamental and subharmonic sine waves A fundamental sine wave and harmonics A fundamental sine wave and odd harmonics 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 Circular polarization None of these Is useful in discrimination between reception of adjacent beams Is useful in reducing depolarization effect on received wave Involves critical alignment of transmitting and receiving antenna None of these Is useful in discrimination between reception of adjacent beams Is useful in reducing depolarization effect on received wave Involves critical alignment of transmitting and receiving antenna ANSWER DOWNLOAD EXAMIANS APP
Communication Systems For a plate-modulated class C amplifier the plate supply voltage is E. The maximum plate cathode voltage could be almost high as 3E 6E 4E 2E 3E 6E 4E 2E ANSWER DOWNLOAD EXAMIANS APP
Communication Systems As per Shannon-Hartley theorem, a noise less Gaussian channel has Small capacity Infinite capacity None of these Zero capacity Small capacity Infinite capacity None of these Zero capacity ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Which of the following is a digital modulation technique? All DM PSK PCM All DM PSK PCM ANSWER DOWNLOAD EXAMIANS APP
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