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Holyhead Transmitting Station
The Holyhead transmitting station was a broadcast television facility located about 2.5 km to the west of Holyhead, on Anglesey, Wales. It had a self-supporting 30 m lattice mast erected on land that is itself about 76 m above sea level. The site was originally built by the BBC, entering service in early 1964 transmitting the now-defunct 405-line VHF television system. When UHF 625-line colour TV came to north Wales in the 1970s, the locality fell into the service area of the main transmitter at Llanddona or the relay at Arfon and so this site was not needed as a repeater. 405-line television from Holyhead was shut down in January 1984. The site appears to have been demolished subsequently. Services listed by frequency Analogue television 24 February 1964 – January 1984 BBC 405-line television started up with the site acting as an off-air relay transmitter of Llanddona about 35 km to the east. BBC research report 1963-50 shows that the town of Holyhead ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Llanddona Transmitting Station
The Llanddona transmitting station ((; ); ) is a broadcasting and telecommunications facility, situated at Llanddona, near Beaumaris, on the isle of Anglesey, Wales (). It comprises a guyed mast with antennas attached at various heights. It is owned and operated by Arqiva. History The station was built by the BBC in 1958 to provide a 405-line Band I ( VHF) TV service and (later) a VHF ( FM) radio services for north west Wales, including the Lleyn peninsula, Anglesey and the north Wales coast. ITV's service was provided from the Arfon transmitting station, approximately 20 miles to the south on the mainland. In 1967 the site became the area's main station for 625 line colour UHF TV, starting with just BBC Two in June of that year. By this time, it was policy to co-site all UHF TV services at the same site, and by 1973 Llanddona was broadcasting BBC One, BBC Two and ITV on UHF. S4C was added later in 1982 in time for its launch. Though 405-line TV was discontinued in the UK in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BBC Wales
BBC Cymru Wales is a division of the BBC and the main public broadcaster in Wales. It is one of the four BBC national regions, alongside the BBC English Regions, BBC Northern Ireland and BBC Scotland. Established in 1964, BBC Cymru Wales is based in Cardiff and directly employs some 1,200 people to produce a range of programmes for television, radio and online services in both English and Welsh. BBC Cymru Wales operates two TV channels ( BBC One Wales, BBC Two Wales) and two radio stations ( BBC Radio Wales and BBC Radio Cymru). The total budget for BBC Cymru Wales (including S4C's £76 million) is £151 million, £31 million of which is for BBC-produced television productions. Services Television BBC Cymru Wales operates two television services, BBC One Wales and BBC Two Wales, which can opt out of the main network feed of BBC One and BBC Two in England to broadcast national programming. These two channels broadcast a variety of programmes in English, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holyhead
Holyhead (,; cy, Caergybi , "Cybi's fort") is the list of Anglesey towns by population, largest town and a Community (Wales), community in the county of Isle of Anglesey, Wales, with a population of 13,659 at the 2011 census. Holyhead is on Holy Island, Anglesey, Holy Island, bounded by the Irish Sea to the north, and is separated from Anglesey island by the narrow Cymyran Strait and was originally connected to Anglesey via the Four Mile Bridge#The Bridge, Four Mile Bridge. In the mid-19th century, John Stanley, 1st Baron Stanley of Alderley, Lord Stanley, a local philanthropist, funded the building of a larger Stanley Embankment, causeway, known locally as "The Cobb", it now carries the A5 road (Great Britain), A5 and the North Wales Coast Line, railway line. The A55 road (Great Britain), A55 dual carriageway runs parallel to the Cobb on a modern causeway. The town houses the Port of Holyhead, a major Irish Sea port for connections towards Ireland. Etymology The town's Engli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anglesey
Anglesey (; cy, (Ynys) Môn ) is an island off the north-west coast of Wales. It forms a Local government in Wales, principal area known as the Isle of Anglesey, that includes Holy Island, Anglesey, Holy Island across the narrow Cymyran Strait and some islets and Skerry, skerries. Anglesey island, at , is the list of islands of Wales, largest in Wales, the list of islands of the British Isles, seventh largest in Britain, List of islands in the Irish Sea, largest in the Irish Sea and second most populous there after the Isle of Man. Isle of Anglesey County Council administers , with a 2011 census population of 69,751, including 13,659 on Holy Island. The Menai Strait to the mainland is spanned by the Menai Suspension Bridge, designed by Thomas Telford in 1826, and the Britannia Bridge, built in 1850 and replaced in 1980. The largest town is Holyhead on Holy Island, whose ferry service with Ireland handles over two million passengers a year. The next largest is Llangefni, the cou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
405-line
The 405-line monochrome analogue television broadcasting system was the first fully electronic television system to be used in regular broadcasting. The number of television lines influences the image resolution, or quality of the picture. It was introduced with the BBC Television Service in 1936, suspended for the duration of World War II, and remained in operation in the UK until 1985. It was also used between 1961 and 1982 in Ireland, as well as from 1957 to 1973 for the Rediffusion Television cable service in Hong Kong. Sometimes called the Marconi-EMI system, it was developed in 1934 by the EMI Research Team led by Isaac Shoenberg. The figure of 405 lines had been chosen following discussions over Sunday lunch at the home of Alan Blumlein. The system used interlacing; EMI had been experimenting with a 243-line all-electronic interlaced system since 1933. In the 405 system the scanning lines were broadcast in two complementary fields, 50 times per second, creating ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arfon Transmitting Station
The Arfon transmitting station is a facility for FM, DAB digital radio and television transmission near the villages of Nebo and Nasareth in Gwynedd, northwestern Wales (). It includes a guyed mast with antennas attached at various heights. The mast is surmounted by a television transmitting antenna, which brings the total height of the structure to , making it the tallest structure in Wales. It is owned and operated by Arqiva. History The station was built by the ITA in the early 1960s to provide a 405-line ITV Band III (VHF) TV service for north west Wales. Unlike the BBC, which served the area from Llanddona (on the island of Anglesey), Arfon gave better coverage to some areas. The tower was completed in 1962 and began broadcasting on 9 November of that year. In October 1975 the site became a medium power UHF analogue colour television relay of Llanddona, at the time carrying BBC One, BBC Two and ITV. S4C was added in 1982. 405-line TV was finally discontinue ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Divis
Divis (; ) is a hill and area of sprawling moorland north-west of Belfast in County Antrim, Northern Ireland. With a height of 1,568 ft (478 m), it is the highest of the Belfast Hills. It is joined with the neighbouring Black Mountain, and in the past they may have been seen as one. Divis transmitting station is on the summit. The mountain extends north to the Antrim Plateau and shares its geology; consisting of a basaltic cover underlain by limestone and lias clay. Only recently have the Divis area and its surrounding mountains been handed over to the National Trust; from 1953 to 2005, it was under the control of the Ministry of Defence. It was also used as a training area for the British Army. It might have been released earlier, but due to the period of unrest known as the Troubles, the British Government and military A military, also known collectively as armed forces, is a heavily armed, highly organized force primarily intended for warfare. It is typic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Irish Sea
The Irish Sea or , gv, Y Keayn Yernagh, sco, Erse Sie, gd, Muir Èireann , Ulster-Scots: ''Airish Sea'', cy, Môr Iwerddon . is an extensive body of water that separates the islands of Ireland and Great Britain. It is linked to the Celtic Sea in the south by St George's Channel and to the Inner Seas off the West Coast of Scotland in the north by the North Channel. Anglesey, North Wales, is the largest island in the Irish Sea, followed by the Isle of Man. The term ''Manx Sea'' may occasionally be encountered ( cy, Môr Manaw, ga, Muir Meann gv, Mooir Vannin, gd, Muir Mhanainn). On its shoreline are Scotland to the north, England to the east, Wales to the southeast, Northern Ireland and the Republic of Ireland to the west. The Irish Sea is of significant economic importance to regional trade, shipping and transport, as well as fishing and power generation in the form of wind power and nuclear power plants. Annual traffic between Great Britain and Ireland a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Masts
The tallest structure in the world is the Burj Khalifa skyscraper at . Listed are guyed masts (such as telecommunication masts), self-supporting towers (such as the CN Tower), skyscrapers (such as the Willis Tower), oil platforms, electricity transmission towers, and bridge support towers. This list is organized by absolute height. See List of tallest buildings and structures, List of tallest freestanding structures and List of tallest buildings and List of tallest towers for additional information about these types of structures. Terminology Terminological and listing criteria follow Council on Tall Buildings and Urban Habitat definitions. Guyed masts are differentiated from towers – the latter not featuring any guy wires or other support structures; and buildings are differentiated from towers – the former having at least 50% of occupiable floor space although both are self-supporting structures. List by height This list includes structures with a minimum height of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Tallest Buildings And Structures In Great Britain
This list contains all types of structures in height or more, which is the accepted criterion for a building to qualify as a skyscraper in the United Kingdom. Entries in ''italics'' denote approximate figures. Structures taller than 300 metres Structures 250 to 300 metres tall Structures 200 to 250 metres tall Structures 150 to 200 metres tall Other notable tall structures A separate list also exists for the tallest of each architectural example or class. * Salisbury Cathedral () – tallest church spire in the United Kingdom * Joseph Chamberlain Memorial Clock Tower, Birmingham () – tallest free-standing clock tower in the world * Monument to the Great Fire of London, London () – tallest isolated stone column in the world * ArcelorMittal Orbit, Olympic Park, London () – tallest free standing public work of art in the UK See also * List of tallest buildings in the United Kingdom *List of tallest buildings and structures in the United Kingdom by usa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transmitter Sites In Wales
In electronics and telecommunications Telecommunication is the transmission of information by various types of technologies over wire, radio, optical, or other electromagnetic systems. It has its origin in the desire of humans for communication over a distance greater than tha ..., a radio transmitter or just transmitter is an electronic device which produces radio waves with an antenna (radio), antenna. The transmitter itself generates a radio frequency alternating current, which is applied to the Antenna (radio), antenna. When excited by this alternating current, the antenna radiates radio waves. Transmitters are necessary component parts of all electronic devices that communicate by radio communication, radio, such as radio broadcasting, radio and television broadcasting stations, cell phones, walkie-talkies, Wireless LAN, wireless computer networks, Bluetooth enabled devices, garage door openers, two-way radios in aircraft, ships, spacecraft, radar sets and naviga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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