What is Broadband?
| Broadband & Wideband |
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A transmission method that uses a bandwidth greater than a voice-grade channel's, and potentially capable of much higher transmission rates; also called wideband. In broadcast transmission, multiple channels access a medium (usually coaxial cable) that has a large bandwidth, using radio-frequency modems. Each channel occupies (is modulated to) a different frequency slot on the cable, and is demodulated to its original frequency at the receiving end. Cable television is an example. Also referred to as wideband. A term describing any network that multiplexes multiple, independent network carrier frequencies on to a single cable. It allows multiple simultaneous "conversations", since the independent networks operate on different frequencies and do not interfere with each other. In LAN terminology, it refers to a system in which multiple channels access a medium, for example co-axial cable, that has a large bandwidth using Radio Frequency (RF) modems. This may allow the co-axial cable to carry multiple separate LANs whose transmission is being modulated at different frequencies. In cable television (CATV), broadband describes the ability to carry 30 or more TV channels and is synonymous with wideband. |
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