broadband

of or relating to or being a communications network in which the bandwidth can be divided and shared by multiple simultaneous signals (as for voice or data or video) responding to or operating at a wide band of frequencies

"a broadband antenna"

This article is about the specific technical term. For the end user Internet access method see Broadband Internet access.''Broadband in ''general'' refers to data transmission where multiple pieces of data are sent simultaneously to increase the effective rate of transmission. In network engineering this term is used for methods where two or more signals share a medium.Various forms of Digital Subscriber Line service are broadband in the sense that digital information is sent over one channel and voice over another channel sharing a single pair of wires. Analog modems operating at speeds greater than 600 bit/s are technically broadband. They obtain higher effective transmission rates by using multiple channels with the rate on each channel limited to 600 baud. For example, a 2400 bit/s modem uses four 600 baud channels (see baud). This is in contrast to a baseband transmission where one type of signal uses a medium's full bandwidth such as 100BASE-T Ethernet.

Multiplexing - Communications may utilise a number of distinct physical channels simultaneously; this is multiplexing for multiple access. Such channels may be distinguished by being separated from each other in time (time division multiplexing or TDMA), in carrier frequency (frequency division multiplexing (FDMA) or wavelength division multiplexing (WDM)), or in access method (code division multiplexing or CDMA). Each channel that takes part in such a multiplexing exercise is by definition narrowband (because it is not utilising the whole bandwidth of the medium), whereas the whole set of channels taken together and utilised for the same communication could be described as broadband.BT is a major player in this market

Confusing usage - While many lower rate forms of data transmission, such as analog modems above 600 bit/s, are broadband, broadband has been more closely associated with higher data rate forms of broadband data transmission such as T-carrier and Digital Subscriber Lines. Therefore, the word "broadband" has also come to mean a relatively high rate, while the term "narrowband" is used to mean a relatively low rate. It is now quite common to hear a broadband method such as a 9600 bit/s modem described as "narrowband", while a high rate baseband transmission such as 10BASE-T is described as "broadband". The International Telecommunication Union Standardization Sector (ITU-T) recommendation I.113 has defined broadband as a transmission capacity that is faster than primary rate ISDN, at 1.5 to 2 Mbit/s. However speeds of 256 kbit/s and greater are commonly marketed as "broadband" and this convention is held to by policy makers and ISPs alike. See Broadband Internet access. Note: The term "narrowband" is also used to mean the opposite of "wideband" instead of the opposite of "broadband".

See also -

Back-channel

Bandwidth cap

Baseband

Broadband telephony

Broadband radio

Broadband receiver

Cable television

Cable modem

''Dalek (Doctor Who episode)Dalek'' - claims that broadband was invented from technology found at Roswell UFO incidentRoswell.

Digital Subscriber LineDSL

List of device bandwidths

Narrowband

Power line communication

Television tuner

WiMAX

External links -

uk-bug.net - UK Broadband Usergroup

tutorial-reports.com - Broadband Information, Forum and News

!http://www.cis.state.mi.us/mps c/comm/broadband/broadband/bro adband.htm

broadband.com - Information on Broadband and High Speed Internet

http://www.itu.int/ITU-T

broadbandinfo.com - Broadband Information

t1expert.com - Realtime T1 & dsl quotes

alcatel.com - User-Centric Broadband Services: Demand Drivers and Market Opportunities Strategy White Paper

!broadband-essentials.co.uk - Compare Broadband !ProvidersCategory:BroadbandCat egory:Internetde:Breitbandes:b anda? anchafr:Haut !débitja:ブロ} 40;ドバン
2489;fi:laajakaistasv:Bredband

T1 - DS3 - Disaster Recovery and Server Colocation Pricing
Get pricing for all of your Internet connection, server colocation and disaster recovery options in one place. Free service with no obligation.
http://www.broadbandlocators.com/

Broadband Video Chat on LiveCamNetwork.com
Got Broadband? Want to try a LIVE video chat and test-drive your high speed connection? Chat with beautiful girls for free in stunning video + Audio quality. Also, help us beta-test our Live HD Chat rooms too!
http://www.livecamnetwork.com/

TeleSouth Network
National ISP and Broadband Provider, Web Hosting, Web Design, VOIP Services
http://www.telesouth1.com/

Hot Telecommunication Products and Services
There are no more monopolies in the telecommunication industry. If you would like to switch your local home phone service, just do it! If you would like DSL for your internet, just get it!
http://www.nationwidecalls.info

ORCnet, Ottawa's Rural Communities network
ORCnet is a grass roots private/public partnership of local business and community leaders, formed to aggregate demand for high-speed services and facilitate broadband deployment in the rural areas of the post-amalgamation city of Ottawa.
http://www.orcnet.ca/

Discount Offerings Worldwide
Make your 2006 Telecommunication decisions here. Don't just order your new phone or cell phone. Look around, compare, get the best deal.
http://www.discountofferings.com/65850

CompetingPrices.com™ Price Comparison Shopping Calculators
Free online price comparison shopping calculators instantly compare what providers who serve your locale would charge for your personal usage without collecting personal information.
http://www.competingprices.com/

Watch 300+ live worldwide TV channels, on your PC.
TV is an award winning software application for Windows® Now you can watch 300+ LIVE worldwide TV channels on your PC. TV is an extremely easy to use application and anyone can find their stations on TV. Music, News, Educational, Sports & Shopping channels are sorted in a very easy to find way, together with TV in English, Spanish, German, French, Portuguese & Arabic sections. You may also browse world TV by regions or by country name.
http://www.tvexe.com/

LASEROPTIK GmbH - High power laser optics and coatings
Laseroptik is a manufacturer of high power optics and coatings for lasers and for laser components and substrates
http://www.laseroptik.com/

Satellite Internet for all
Details of satellite communications beam coverage patterns providing broadband VSAT services worldwide. Miscellaneous tools include link budget calculator, dish pointing calculator (good for satellite television) and worldwide latitude longitude finder.
http://www.satsig.net/

Micrwoave & Rf Amplifiers
1Mhz to 40GHz Low Noise, High Power Amplifiers. Wi Fi Amplifiers 10W, 15W 20W
http://www.nextec-rf.com/

Broadband Media Engineering Inc.
Provides engineering, intergration sevices and resources for Cable Television, Digital IP Television, Voice Over IP and Wireless networks and operators.
http://www.broadbandmedia-eng.com/

Information TV
Home page of a UK-based satellite and webstreaming broadcaster. Information TV broadcasts sponsored information TV programmes from government departments, public bodies and others. It has an unusual broadcasting licence, which allows sponsors of programmes to have full editorial control of the programmes. The company also incubates new TV broadcasting propositions, allowing them to start small - with an hour or two a day/week - and then grow their operations, without the full fixed-cost commitments of being a 24/7 broadcaster. It operates on the Sky Digital satellite platform (channels 181 and 182 in May 2006).
http://www.information.tv/

WSUN Technologies - Enterprise Standard Web Solutions
domain registration, web design, software development, network architecture, reverse engineering, reverse engineer, dial-up, dial up, dsl, internet access, aps, software design, mainframe circuit boards, mission, technical, highest standard, wifi network, hotzone, hotspot, radius, port saint lucie, florida, roanoke virginia, broadband, ethernet adapter, laptop, desktop, air waves, lan, modem, 56k, integrated, wifi coverage, wifi map, free software downloads, network uptime, webhosting, web hosting, hosting, design, website management, outsource, hosting package, linux, redhat, sql, php, free email, free church web sites, free non profit hosting
http://www.wsuntech.com

AllComms
AllComms is a telecommunications value-added service provider, with a dedicated focus on the small-to-medium size businesses depending on reliable and cost-effective solutions to run their business, but have little time, resource or expertise to improve them. Through our strategic relationships with the best-of-breed carriers and service providers, we provide our customers with a one-stop shop to truly innovative next-generation consultancy, solutions and services to best fit their specific needs and requirements.
http://www.allcomms.com/

High Speed Internet for Australia
Best value high speed internet service in Australia.
http://www.secrett-systems.com/inet_pricing.htm

Enrico Ferro Website
Enrico Ferro personal and professional website
http://www.enricoferro.com/

Maritime satellite communications from SeaBand
Details of maritime mobile satellite communications service using tracking dishes within radomes to provide both voice and broadband internet worldwide. For private yachts up to giant tankers and cruise ships.
http://www.seabandsat.com/

UK Broadband Guide
Compare the price, speed and service of UK broadband providers.
http://www.ukbroadbandguide.com/

Sky Light Research
SLR has established itself as a credible and reliable resource for market intelligence in the microwave and wireless broadband industries. SLR works with equipment vendors, operators, and the investment community to establish detailed, accurate and reliable numbers for reports that are published every 90 days. Sky Light Research, a third party research firm, is located in Scottsdale, Arizona, U.S. The company offers individual reports, syndicated annual services, and custom consulting services.
http://www.skylightresearch.com/

British Telecommunication plc
The UKs biggest telco. Providing a full range of services to the home and business customer.
http://www.bt.com/

Dslreports.com
Find DSL availability and prices for your zipcode. Source for all types of xDSL information, end-user reviews and ratings, discussions. Benchmark your line speed.
http://www.dslreports.com/

Optoelectronics World
Several trade magazines on optoelectronics, with current on-line content.
http://www.optoelectronics-world.com/

Broadband Week
Delivers in-depth, platform-neutral coverage of networks, applications and content. Examines the impact of current developments and trends on broadband development.
http://www.broadbandweek.com/

AT&T
Provides long-distance, international and wireless services as well as internet access.
http://www.att.com/