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Under ordinary circumstances, impulse noise can be reduced in
fm only
fm only
See lessIn case of frequency modulation, modulating voltage remains constant if the modulating frequency is lowered, then
amplitude of distant sidebands increases
amplitude of distant sidebands increases
See lessIf sampling is done at the rate of 10 kHz. The bandwidth required is
35 khz
35 khz
See lessIt is found that a ship to ship communication suffers from fading. This can be avoided by using
frequency diversity
frequency diversity
See lessFor a given carrier wave, maximum undistorted power is transmitted when value of modulation is
1
1
See lessAs per Shannon-Hartley theorem, a noise less Gaussian channel has
infinite capacity
infinite capacity
See lessDVD uses
laser beam for both recording and playback
laser beam for both recording and playback
See lessFM transmitting and receiving equipment as compared to AM equipment is
costly
costly
See lessAn audio signal (say from 50 Hz to 10000 Hz) is frequency translated by a carrier having a frequency of 106 Hz. The values of initial (without frequency translation) and final (after frequency translation) fractional change in frequency from one band edge to the other are
200 and 1.01
200 and 1.01
See lessIf 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
10
See less