ECE :: Communication Systems
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FSK is a system involving
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A 200 Hz sound wave is to be transmitted by a 1000 kHz radio wave using frequency modulation. The instantaneous frequency variation will be
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In a TV studios, flying spot scanner is a device for
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A broadcast radio transmitter radiates 5 kW when the modulation percentage is 60. How much of this is carrier power?
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A device has two resistances 300 Ω and 200 Ω respectively. The noise voltages due to these two resistance calculated separately are 5.38 μV and 4.38 μV respectively. When both of them are used together, the noise voltage will be
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The antenna diameter of a radar system is doubled. The maximum range will
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Which of the following microphones works on the piezoelectric effect?
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In PAL system weighting of R - Y and B - Y signals is done to
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In case of probability of the message is 1 to 16 then the information will be
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