Meaning of BROADBAND in English
[broad.band] adj (1956) 1: operating at, responsive to, or comprising a wide band of frequencies "a ~ radio antenna"
2: of, relating to, or being a communications network in which a frequency range is divided into multiple independent channels for simultaneous transmission of signals (as voice, data, or video)
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012