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FM transmitting and receiving equipment as compared to AM equipment is
A. costly
A. costly
See lessFourier analysis indicate that a square wave can be represented as
A. a fundamental sine wave and odd harmonics
A. a fundamental sine wave and odd harmonics
See lessDVD uses
A. laser beam for both recording and playback
A. laser beam for both recording and playback
See lessAs per Shannon-Hartley theorem, a noise less Gaussian channel has
B. infinite capacity
B. infinite capacity
See lessFor a given carrier wave, maximum undistorted power is transmitted when value of modulation is
A. 1
A. 1
See lessA telephone channel requires a bandwidth of about
B. 3 khz
B. 3 khz
See lessFor a low level AM system, the amplifiers modulated stage must be
A. linear devices
A. linear devices
See lessWhich of the following does not cause losses in optical fibre cables?
A. stepped index operation
A. stepped index operation
See lessThe frequency range of 300 kHz to 3000 kHz is known as
B. medium frequency
B. medium frequency
See lessTo eliminate ghosts in the picture
C. change the antenna orientation of location
C. change the antenna orientation of location
See less