Shannon's Theorem  Bandwidth = B Hz Signal-to-noise ratio = S/N  Maximum number of bits/sec = B log2 (1+S/N)  Example: Phone wire bandwidth = 3100 Hz S/N = 30 dB 10 Log 10 S/N = 30 Log 10 S/N = 3 S/N = 1000 Capacity = 3100 log 2 (1+1000) = 30,894 bps
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