Menu
Home / ECE / Communication Systems :: Discussion

Discussion :: Communication Systems

  1. 24 telephone channels, each band limited to 3.4 kHz are to be time division multiplexed using PCM. If sampling frequency is 10 kHz and number of quantization levels is 128, the required bandwidth of PCM is

    2. A.
    1.68 MHz
    B.
    240 kHz
    C.
    81.6 kHz
    D.
    3.072 MHz

    View Answer

    Workspace

    View Answer

    Answer : Option A

    Explanation :

    Bandwidth ≈ 24 (ln2 128) 10 kHz = 1.68 MHz.

Write your comments here:

Be The First To Comment