ECE :: Communication Systems
- In Pulse Code Modulation system
- An 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
- DVD uses
- If output power of a radio receiver is doubled, its volume is increased by __________ dB.
- For attenuation of high frequencies we should use
- The disadvantage of FM over AM is that
- VSB modulation is preferred in TV because
- As per Shannon-Hartley theorem, a noise less Gaussian channel has
- In a TV receiver antenna the length of reflector rod
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