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A band with a wide range of frequencies.


A class of communication channel capable of supporting a wide range of frequencies, typically from audio up to video frequencies. A broadband channel can carry multiple signals by dividing the total capacity into multiple, independent bandwidth channels, where each channel operates only on a specific range of frequencies.

The term has come to be used for any kind of Internet connection with a download speed of more than 56 kbps, usually some kind of Digital Subscriber Line, e.g. ADSL. A broadband connection is typically always connected, in contrast to a dial-up connection, and a fixed monthly rate is charged, often with a cap on the total amount of data that can be transferred. Domestic broadband connections typically share a telephone line with normal voice calls and the two uses can occur simultaneously without interference.

See also baseband, narrowband.


(1) High-speed transmission. Broadband commonly refers to Internet access via a variety of high-speed wired and wireless networks, including cable, DSL, FiOS, Wi-Fi, WiMAX, 3G, 4G and satellite, all of which are faster than earlier analog dial-up by a huge magnitude.

A Formal Definition
In 2015, the U.S. Federal Communications Commission (FCC) redefined the minimum broadband speed as 25 Mbps down and 3 Mbps up, updating the 2010 rating of 4 and 1 Mbps. The term always referred to a higher-speed connection, but the threshold varied with the times. Years ago, the widely deployed 1.5 Mbps T1 line was considered broadband speed. However, based on the 2015 definition, more than 50 million rural Americans did not have access to broadband speeds.

Public Vs. Private
The broadband term is sometimes used to contrast a public provider with a private network. For example, the phrase "broadband works for regular traffic in our branches, but we use private lines for our mission critical business." See broadband router, wireless broadband, T1, cable modem and DSL.

(2) Transmitting data by modulating a carrier wave in order to differentiate it from other signals in the air or in a wire. For example, frequency division multiplexing (see FDM) is used to carry hundreds of channels of digital TV in a single coaxial cable. In this context, broadband is used in contrast with "baseband," which refers to data that have not been modulated or multiplexed (see baseband and TDM). However, in most cases, the term "broadband" means high-speed transmission as in definition #1 above.

References in periodicals archive ?
In any location, whether it be the dense metro, suburban, or rural areas, upgrading physical resources is the key to providing universal broadband services to wide areas that are currently underserved.
With our experience over the last years in supplying turnkey broadband solutions for Europe and around the globe, Eutelsat and Skylogic are well-positioned to address the consumer market for satellite broadband services in Europe's geographically challenged locations," said Arduino Patacchini, director Multimedia Department at Eutelsat and CEO of Skylogic.
We are excited about O2 Germany's selection of NBBS for the centralized management of their new, growing broadband service," said Jeff Porter, vice president of software sales at Netopia.
By automating the management and support of remote devices and related services, carriers can deliver broadband services more quickly and easily, and much more efficiently.
NBBS as a hosted solution allows service providers to reduce time to market for broadband services, reduce upfront capital costs, and provides companies with smaller subscriber bases a cost-effective means for bringing the power of broadband to their networks.
These statements include but are not limited to statements regarding our expectations, beliefs, intentions or strategies regarding the future and including, without limitation, statements regarding the deployment of broadband services and IPTV services in China by carriers; the belief that next-generation broadband services will help to foster economic growth, that the next wave of broadband service upgrades will be larger than the last Internet build-out, and that carriers will support fewer networks and migrate wireless and wire-line users to a single broadband infrastructure; and the ability of Redback's products to help carriers deliver such services.
TSTT has laid aggressive growth plans to expand the delivery of broadband services to the population of Trinidad and Tobago.
With the increasing penetration of established broadband technologies like Digital Subscriber Line (DSL) service and cable modem service, in addition to improvements in fixed wireless broadband and satellite broadband services, the number of worldwide broadband subscribers will double over the next five years, reports In-Stat (http://www.
The combination of wireline and wireless broadband services is a competitive advantage as business customers continue to seek out providers of converged voice and data solutions offered through a variety of technologies," says Pyramid Research's senior analyst Ozgur Aytar.
A 10-market road show introducing CompUSA's entire line of broadband data and voice products will help familiarize CompUSA associates with Covad's business-class broadband services.
Netopia has established strategic business relationships with leading carriers and broadband service providers including Belgacom, BellSouth, Covad Communications, EarthLink, eircom, Hong Kong Telecom/PCCW, MegaPath Networks, Netifice, SBC Communications, Swisscom, and Verizon.
Thus, with large-scale deployments of Voice over Broadband services to the residence set for the second half of 2001, new ways to lower the cost, simplify installation, and leverage existing standards and data networking technologies in the home have become the critical requirement for this shift in the service provider distribution model.

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