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Sutton Coldfield Transmitting Station
The Sutton Coldfield transmitting station is a broadcasting and telecommunications facility located in Sutton Coldfield, Birmingham, England. In terms of population covered, it is the third most important transmitter in the UK, after Crystal Palace in London and Winter Hill near Bolton. History On 17 December 1949, it became the first television transmitter to broadcast outside London and the Home Counties, bringing BBC Television to viewers outside of the south-east of England for the first time. In 1949 the site housed Britain's first post-war Marconi-EMI band 1 405 line television transmitter. When it was taken out of service in 1981 it was the oldest working television transmitter in the world. For most of 1965, it had a low-power BBC2 service; this was turned onto full power on 4 October 1965; the East Midlands had no BBC2 service until Waltham began transmissions on 31 August 1968. A new mast was built around 1983 to replace the original structure, primarily to s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sutton Coldfield
Sutton Coldfield or the Royal Town of Sutton Coldfield, known locally as Sutton ( ), is a town and civil parish in the City of Birmingham, West Midlands, England. The town lies around 8 miles northeast of Birmingham city centre, 9 miles south of Lichfield, 7 miles southwest of Tamworth and 7 miles east of Walsall. Sutton Coldfield and its surrounding suburbs are governed under Birmingham City Council for local government purposes but the town has its own town council which governs the town and its surrounding areas by running local services and electing a mayor to the council. It is in the Historic county of Warwickshire, and in 1974 it became part of Birmingham and the West Midlands metropolitan county under the Local Government Act 1972. History Etymology The etymology of the name Sutton appears to be from "South Town". The name "Sutton Coldfield" appears to come from this time, being the "south town" (i.e. south of Tamworth and/or Lichfield) on the edge of the "col f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
East Midlands
The East Midlands is one of nine official regions of England at the first level of ITL for statistical purposes. It comprises the eastern half of the area traditionally known as the Midlands. It consists of Leicestershire, Derbyshire, Lincolnshire (except North and North East Lincolnshire), Northamptonshire, Nottinghamshire and Rutland. The region has an area of , with a population over 4.5 million in 2011. The most populous settlements in the region are Derby, Leicester, Lincoln, Mansfield, Northampton and Nottingham. Other notable settlements include Boston, Buxton, Chesterfield, Corby, Coalville, Gainsborough, Glossop, Grantham, Hinckley, Kettering, Loughborough, Louth, Market Harborough, Matlock, Newark-on-Trent, Oakham, Skegness, Wellingborough and Worksop. With a sufficiency-level world city ranking, Nottingham is the only settlement in the region to be classified by the Globalization and World Cities Research Network. The region is primarily served ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FM Broadcasting
FM broadcasting is a method of radio broadcasting using frequency modulation (FM). Invented in 1933 by American engineer Edwin Armstrong, wide-band FM is used worldwide to provide high fidelity sound over broadcast radio. FM broadcasting is capable of higher fidelity—that is, more accurate reproduction of the original program sound—than other broadcasting technologies, such as AM broadcasting. It is also less susceptible to common forms of interference, reducing static and popping sounds often heard on AM. Therefore, FM is used for most broadcasts of music or general audio (in the audio spectrum). FM radio stations use the very high frequency range of radio frequencies. Broadcast bands Throughout the world, the FM broadcast band falls within the VHF part of the radio spectrum. Usually 87.5 to 108.0 MHz is used, or some portion thereof, with few exceptions: * In the former Soviet republics, and some former Eastern Bloc countries, the older 65.8–74 MHz band ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multiplexing
In telecommunications and computer networking, multiplexing (sometimes contracted to muxing) is a method by which multiple analog or digital signals are combined into one signal over a shared medium. The aim is to share a scarce resource - a physical transmission medium. For example, in telecommunications, several telephone calls may be carried using one wire. Multiplexing originated in telegraphy in the 1870s, and is now widely applied in communications. In telephony, George Owen Squier is credited with the development of telephone carrier multiplexing in 1910. The multiplexed signal is transmitted over a communication channel such as a cable. The multiplexing divides the capacity of the communication channel into several logical channels, one for each message signal or data stream to be transferred. A reverse process, known as demultiplexing, extracts the original channels on the receiver end. A device that performs the multiplexing is called a multiplexer (MUX), and a dev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital Television
Digital television (DTV) is the transmission of television signals using digital encoding, in contrast to the earlier analog television technology which used analog signals. At the time of its development it was considered an innovative advancement and represented the first significant evolution in television technology since color television in the 1950s. Modern digital television is transmitted in high-definition television (HDTV) with greater resolution than analog TV. It typically uses a widescreen aspect ratio (commonly 16:9) in contrast to the narrower format of analog TV. It makes more economical use of scarce radio spectrum space; it can transmit up to seven channels in the same bandwidth as a single analog channel, and provides many new features that analog television cannot. A transition from analog to digital broadcasting began around 2000. Different digital television broadcasting standards have been adopted in different parts of the world; below are the more widel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
English Midlands
The Midlands (also referred to as Central England) are a part of England that broadly correspond to the Kingdom of Mercia of the Early Middle Ages, bordered by Wales, Northern England and Southern England. The Midlands were important in the Industrial Revolution of the 18th and 19th centuries. They are split into the West Midlands and East Midlands. The region's biggest city, Birmingham often considered the social, cultural, financial and commercial centre of the Midlands, is the second-largest city and metropolitan area in the United Kingdom. Symbolism A saltire (diagonal cross) may have been used as a symbol of Mercia as early as the reign of Offa. By the 13th century, the saltire had become the attributed arms of the Kingdom of Mercia. The arms are blazoned ''Azure, a saltire Or'', meaning a gold (or yellow) saltire on a blue field. The saltire is used as both a flag and a coat of arms. As a flag, it is flown from Tamworth Castle, the ancient seat of the Mercian Kings, to t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stoke-on-Trent
Stoke-on-Trent (often abbreviated to Stoke) is a city and Unitary authorities of England, unitary authority area in Staffordshire, England, with an area of . In 2019, the city had an estimated population of 256,375. It is the largest settlement in Staffordshire and is surrounded by the towns of Newcastle-under-Lyme, Alsager, Kidsgrove, Biddulph and Stone, Staffordshire, Stone, which form a conurbation around the city. Stoke is wikt:polycentric, polycentric, having been formed by Federation of Stoke-on-Trent, the federation of six towns in 1910. It took its name from Stoke-upon-Trent where the main centre of government and the principal Stoke-on-Trent railway station, railway station in the district were located. Hanley, Staffordshire, Hanley is the primary commercial centre; the other four towns which form the city are Burslem, Tunstall, Staffordshire, Tunstall, Longton, Staffordshire, Longton and Fenton, Staffordshire, Fenton. Stoke-on-Trent is the home of the pottery industr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oxfordshire
Oxfordshire is a ceremonial and non-metropolitan county in the north west of South East England. It is a mainly rural county, with its largest settlement being the city of Oxford. The county is a centre of research and development, primarily due to the work of the University of Oxford and several notable science parks. These include the Harwell Science and Innovation Campus and Milton Park, both situated around the towns of Didcot and Abingdon-on-Thames. It is a landlocked county, bordered by six counties: Berkshire to the south, Buckinghamshire to the east, Wiltshire to the south west, Gloucestershire to the west, Warwickshire to the north west, and Northamptonshire to the north east. Oxfordshire is locally governed by Oxfordshire County Council, together with local councils of its five non-metropolitan districts: City of Oxford, Cherwell, South Oxfordshire, Vale of White Horse, and West Oxfordshire. Present-day Oxfordshire spanning the area south of the Thames was h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chipping Norton, Oxfordshire
Chipping Norton is a market town and civil parish in the Cotswold Hills in the West Oxfordshire district of Oxfordshire, England, about south-west of Banbury and north-west of Oxford. The 2011 Census recorded the civil parish population as 5,719. It was estimated at 6,254 in 2019. History Pre-1800 The Rollright Stones, a stone circle north of Chipping Norton, reflect prehistoric habitation in the area. The town name means "market north town", with "Chipping" (from Old English ''cēping'') meaning "market". Chipping Norton began as a small settlement beneath a hill, where the earthworks of the motte-and-bailey Chipping Norton Castle can still be seen. The Church of England parish church dedicated to St Mary the Virgin stands on the hill next to the castle. Parts of today's building may date from the 12th century. It retains features of the 13th and 14th centuries. The nave was largely rebuilt in about 1485 with a Perpendicular Gothic clerestory. It is believed to have been ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Television
Television, sometimes shortened to TV, is a telecommunication medium for transmitting moving images and sound. The term can refer to a television set, or the medium of television transmission. Television is a mass medium for advertising, entertainment, news, and sports. Television became available in crude experimental forms in the late 1920s, but only after several years of further development was the new technology marketed to consumers. After World War II, an improved form of black-and-white television broadcasting became popular in the United Kingdom and the United States, and television sets became commonplace in homes, businesses, and institutions. During the 1950s, television was the primary medium for influencing public opinion.Diggs-Brown, Barbara (2011''Strategic Public Relations: Audience Focused Practice''p. 48 In the mid-1960s, color broadcasting was introduced in the U.S. and most other developed countries. The availability of various types of archival st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Effective Radiated Power
Effective radiated power (ERP), synonymous with equivalent radiated power, is an IEEE standardized definition of directional radio frequency (RF) power, such as that emitted by a radio transmitter. It is the total power in watts that would have to be radiated by a half-wave dipole antenna to give the same radiation intensity (signal strength or power flux density in watts per square meter) as the actual source antenna at a distant receiver located in the direction of the antenna's strongest beam (main lobe). ERP measures the combination of the power emitted by the transmitter and the ability of the antenna to direct that power in a given direction. It is equal to the input power to the antenna multiplied by the gain of the antenna. It is used in electronics and telecommunications, particularly in broadcasting to quantify the apparent power of a broadcasting station experienced by listeners in its reception area. An alternate parameter that measures the same thing is effec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kilowatt
The watt (symbol: W) is the unit of power or radiant flux in the International System of Units (SI), equal to 1 joule per second or 1 kg⋅m2⋅s−3. It is used to quantify the rate of energy transfer. The watt is named after James Watt (1736–1819), an 18th-century Scottish inventor, mechanical engineer, and chemist who improved the Newcomen engine with his own steam engine in 1776. Watt's invention was fundamental for the Industrial Revolution. Overview When an object's velocity is held constant at one metre per second against a constant opposing force of one newton, the rate at which work is done is one watt. : \mathrm In terms of electromagnetism, one watt is the rate at which electrical work is performed when a current of one ampere (A) flows across an electrical potential difference of one volt (V), meaning the watt is equivalent to the volt-ampere (the latter unit, however, is used for a different quantity from the real power of an electrical circuit). : ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
