railway DFCCIL Executive 2025 Mock Test Communication Systems Introduction To Digital Modulation Baseband Modulation
Four voice signals, each limited to 4 kHz and sampled at Nyquist rate, are converted into binary PCM signal using 256 quantization levels. The bit transmission rate for the time-division multiplexing signal will be
1
8 kbps
2
64 kbps
3
256 kbps
4
5126 kbps