Broadband refers to a communication bandwidth of at least 256 kbit/s. Each channel is 6 MHz wide and it uses an extensive range of frequencies to effortlessly relay and receive data between networks. In telecommunications, a broadband signaling method is one that handles a wide band of frequencies. Broadband is a relative term, understood according to its context. The wider (or broader) the bandwidth of a channel, the greater the information-carrying capacity, given the same channel quality.
In radio, for example, a very narrow-band signal will carry Morse code; a broader band will carry speech; a still broader band will carry music without losing the high audio frequencies required for realistic sound reproduction. This broad band is often divided into channels or frequency bins using passband techniques to allow frequency-division multiplexing, instead of sending a higher-quality signal.
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