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Telephone system bandwidth 3000 hz sn 30db d 3000

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Unformatted text preview: 3000 Hz – S/N = 30dB D =3000 x 10 ~30000bps The significance of Nyquist’s and Shannon’s Theorems Nyquist’s theorem encourages engineers to explore ways to encode bits on a signal. – A clever encoding allows more bits to be transmitted per unit time. Shannon’s theorem informs engineers that no amount of clever encoding can overcome the laws of physics. – There is a fundamental limit on the number of bits per second that can be transmitted in a realcommunication system. Summary Summary Local, asynchronous communication The RS-232 standard Baud rate and bandwidth Nyquist’s and Shannon’s theorems...
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