Some Comm Theory
So, with Nyquist, we cannot hope to send binary data even over a noiseless 3-kHz channel at more than 6000 b/sec:
- 2H = 2(3000) = 6000 b/sec
With Shannon, bit rate over an analog phone line is limited to about 30kb/s [assuming 30dB S/N ratio]:
- Hlog(1+S/N) = 3000log(1 + 1000) = 30kb/s