A channel has a signal-to-noise ratio of 30 dB and a bandwidth of 4000 Hz. What is its capacity?
Q1. A channel has a signal-to-noise ratio of 30 dB and a bandwidth of 4000 Hz. What is its capacity?
Answer: 40000 bps
Explanation: Using Shannon-Hartley theorem: C = B * log2(1 + S/N), S/N = 10^(30/10) = 1000, C = 4000 * log2(1 + 1000) = 4000 * log2(1001) = 39868 bps.