Communication Systems Commercial Frequency deviation of FM is 75 kHz 80 kHz 70 kHz 65 kHz 75 kHz 80 kHz 70 kHz 65 kHz ANSWER DOWNLOAD EXAMIANS APP
Communication Systems When the length of antenna is a whole wavelength The radiation is maximum in all directions The radiation at right angles is zero The radiation is zero in all directions The radiation at right angles is maximum The radiation is maximum in all directions The radiation at right angles is zero The radiation is zero in all directions The radiation at right angles is maximum ANSWER DOWNLOAD EXAMIANS APP
Communication Systems Circular polarization None of these Is useful in reducing depolarization effect on received wave Involves critical alignment of transmitting and receiving antenna Is useful in discrimination between reception of adjacent beams None of these Is useful in reducing depolarization effect on received wave Involves critical alignment of transmitting and receiving antenna Is useful in discrimination between reception of adjacent beams 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. 5 10 995 4.9 5 10 995 4.9 ANSWER DOWNLOAD EXAMIANS APP
Communication Systems To eliminate ghosts in the picture Change the antenna orientation of location Connect a booster Twist the transmission line Use a longer transmission line Change the antenna orientation of location Connect a booster Twist the transmission line Use a longer transmission line ANSWER DOWNLOAD EXAMIANS APP
Communication Systems A three stage telephone switching structure is to have 128 input and 128 output terminals. There are 16 first stage and 16 third stage matrices. To avoid blocking the number of intermediate paths required is 1 16 8 15 1 16 8 15 ANSWER DOWNLOAD EXAMIANS APP
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