ECE :: Communication Systems
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Which of the following is true in a tape recorder?
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In a high speed modem the data rate handled is about
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The first pulse in a TV remote control is
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If the ratio of ac to dc load impedance of a diode detector is low, the result will be
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The minimum step size required for a Delta modulator operating at 36 samples/sec to track the signal (here u(t) is the unit step function) x(t) = 125t (u(t) - u(t - 1)) + (250 - 125t) (u(t - 1) - u(t - 2)) So that slope overload is avoided, would be
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An FM signal with a deviation δ is passed through a mixer, and has its frequency reduced 5 fold. The deviation in the output of the mixer is
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In PCM, if the number of quantization levels is increased from 4 to 64, then the bandwidth requirement will approximately be increased __________ times.
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A tweeter should be fed from the input through a
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|m(t)| ≥ Δ . fs or |x(t)| ≥ Δ . fs
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