Communication Systems - Study Mode
[#96] The primary colour used in colour television is-
Correct Answer
(C) Red, green, blue
[#97] A 1 mW video signal having a bandwidth of 100 MHz is transmitted to a receiver through a cable that has 40 dB loss. If the effective one-sided noise spectral density at the receiver is 10 -20 Watt/Hz, then the signal-to-noise ratio at the receiver is
Correct Answer
(A) 50 dB
[#98] Which of the following is not a digital-to-analog conversion?
Correct Answer
ASK
[#99] When the length of antenna is a whole wavelength
Correct Answer
(A) The radiation at right angles is zero
[#100] Under ordinary circumstances, impulse noise can be reduced in
Correct Answer
(A) FM only