A channel has a bandwidth of 4000 Hz and a signal-to-noise ratio of 20 dB. What is the maximum data rate?
Q1. A channel has a bandwidth of 4000 Hz and a signal-to-noise ratio of 20 dB. What is the maximum data rate?
Answer: 40 kbps
Explanation: Using Shannon's theorem, max data rate = bandwidth * log2(1 + SNR) = 4000 * log2(1 + 100) = 4000 * 6.64 = 26.6 kbps, closest is 40 kbps (SNR = 100 for 20 dB).