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Skelton Transmitter
The Skelton Transmitting Station is a radio transmitter site at near Skelton, Cumbria, England, about north-west of Penrith, run by Babcock International and owned by the Ministry of Defence. Since the Belmont Mast in Lincolnshire was shortened in 2010, the mast at Skelton has been the tallest structure in the United Kingdom. History Construction The site was built by J. L. Eve Construction during the Second World War, for long-distance short-wave transmissions, across Europe. Transmissions In 1946, the BBC was heralding the site as being "the World's largest and most powerful (shortwave) radio station". The main purpose of it is shortwave broadcasting. The site is capable of Digital Radio Mondiale (DRM) on at least 3955 kHz and 3975 kHz (75m broadcast band) beamed at 121° towards Germany and Central Europe. On AM the frequencies of 5995 kHz and 6195 kHz (49m broadcast band) and 9410 kHz (31m broadcast band) and 12095 kHz (25m broadca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skelton Transmitting Station - Geograph
Skelton may refer to: Places United Kingdom * Skelton, Cumbria, England **Skelton Transmitting Station, a radio transmitter and the tallest structure in the UK * Skelton, East Riding of Yorkshire, England *North Yorkshire, England **Skelton, Richmondshire ** Skelton-on-Ure, Harrogate **Skelton, York **Skelton and Brotton, parish in Redcar and Cleveland ***Skelton-in-Cleveland *** Skelton Castle ***North Skelton United States * Skelton, Indiana *Skelton Township, Warrick County, Indiana * Skelton, West Virginia People Surname * Aaron Skelton (born 1974) * Arvonne Fraser (née Skelton; 1925–2018), American women's rights activist * Aylmer Skelton (1884–1959) * B. R. Skelton (born 1933) * Barbara Skelton (1916–1996) * Betty Skelton Erde (1926–2011), women's land speed record holder and aviator * Bevil Skelton (1641–1696) * Bill Skelton (1920–2003) * Byron George Skelton (1905–2004) * Cameron Skelton (born 1995), rugby player *Carol Skelton (born 1945) * Charles Skelton ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amplitude Modulation
Amplitude modulation (AM) is a modulation technique used in electronic communication, most commonly for transmitting messages with a radio wave. In amplitude modulation, the amplitude (signal strength) of the wave is varied in proportion to that of the message signal, such as an audio signal. This technique contrasts with angle modulation, in which either the frequency of the carrier wave is varied, as in frequency modulation, or its phase, as in phase modulation. AM was the earliest modulation method used for transmitting audio in radio broadcasting. It was developed during the first quarter of the 20th century beginning with Roberto Landell de Moura and Reginald Fessenden's radiotelephone experiments in 1900. This original form of AM is sometimes called double-sideband amplitude modulation (DSBAM), because the standard method produces sidebands on either side of the carrier frequency. Single-sideband modulation uses bandpass filters to eliminate one of the sidebands ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telecommunications In World War II
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 that feasible with the human voice, but with a similar scale of expediency; thus, slow systems (such as postal mail) are excluded from the field. The transmission media in telecommunication have evolved through numerous stages of technology, from beacons and other visual signals (such as smoke signals, semaphore telegraphs, signal flags, and optical heliographs), to electrical cable and electromagnetic radiation, including light. Such transmission paths are often divided into communication channels, which afford the advantages of multiplexing multiple concurrent communication sessions. ''Telecommunication'' is often used in its plural form. Other examples of pre-modern long-distance communication included audio messages, such as coded dru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Masts And Towers In Europe
Radio is the technology of signaling and communicating using radio waves. Radio waves are electromagnetic waves of frequency between 30 hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a transmitter connected to an antenna which radiates the waves, and received by another antenna connected to a radio receiver. Radio is very widely used in modern technology, in radio communication, radar, radio navigation, remote control, remote sensing, and other applications. In radio communication, used in radio and television broadcasting, cell phones, two-way radios, wireless networking, and satellite communication, among numerous other uses, radio waves are used to carry information across space from a transmitter to a receiver, by modulating the radio signal (impressing an information signal on the radio wave by varying some aspect of the wave) in the transmitter. In radar, used to locate and track objects like aircraft, ships, spacecraf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buildings And Structures In Cumbria
A building, or edifice, is an enclosed structure with a roof and walls standing more or less permanently in one place, such as a house or factory (although there's also portable buildings). Buildings come in a variety of sizes, shapes, and functions, and have been adapted throughout history for a wide number of factors, from building materials available, to weather conditions, land prices, ground conditions, specific uses, prestige, and aesthetic reasons. To better understand the term ''building'' compare the list of nonbuilding structures. Buildings serve several societal needs – primarily as shelter from weather, security, living space, privacy, to store belongings, and to comfortably live and work. A building as a shelter represents a physical division of the human habitat (a place of comfort and safety) and the ''outside'' (a place that at times may be harsh and harmful). Ever since the first cave paintings, buildings have also become objects or canvasses of much artistic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Radio Stations In The United Kingdom
This is a list of radio stations in the United Kingdom. National analogue and digital (DAB) stations This list does not include stations which broadcast on numerous local digital multiplexes or MW licences to achieve near-national coverage. DAB frequencies: * 11A - radio stations operated under the Sound Digital multiplex * 11D / 12A - radio stations operated under the Digital One multiplex, 12A in Scotland and 11D in the rest of the UK * 12B - radio stations operated under the BBC National DAB multiplex National digital (DAB+) stations ''List of stations on the Digital One and Sound Digital multiplexes broadcasting in the newer DAB+ Digital Radio standard'' DAB frequencies: * 11A - radio stations operated under the Sound Digital multiplex * 11D / 12A - radio stations operated under the Digital One multiplex, 12A in Scotland and 11D in the rest of the UK Semi-national analogue and digital (DAB) stations Stations which are available nationally on Freeview and/or satell ... [...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 usage *L ... [...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 o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rugby Radio Station
__NOTOC__ Rugby Radio Station was a large radio transmission facility just east of the Hillmorton area of the town of Rugby, Warwickshire in England. The site straddled the A5 trunk road, with most of it in Warwickshire, and part on the other side of the A5 in Northamptonshire. First opened in 1926, at its height in the 1950s it was the largest radio transmitting station in the world, with a total of 57 radio transmitters, covering an area of . Traffic slowly dwindled from the 1980s onwards, and the site was closed between 2003 and 2007. The tallest masts on the site were tall, and could be seen from up to away, making the site for many years a major local landmark. Since closure, part of the site has been used for a large housing development called Houlton, named after Houlton, Maine, USA the American town which received the first transatlantic phone call from the station in 1927. History Following the end of the First World War the British government set about implement ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tallest Structure In The UK
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] |
Very Low Frequency
Very low frequency or VLF is the ITU designation for radio frequencies (RF) in the range of 3–30 kHz, corresponding to wavelengths from 100 to 10 km, respectively. The band is also known as the myriameter band or myriameter wave as the wavelengths range from one to ten myriameters (an obsolete metric unit equal to 10 kilometers). Due to its limited bandwidth, audio (voice) transmission is highly impractical in this band, and therefore only low data rate coded signals are used. The VLF band is used for a few radio navigation services, government time radio stations (broadcasting time signals to set radio clocks) and for secure military communication. Since VLF waves can penetrate at least 40 meters (131 ft) into saltwater, they are used for military communication with submarines. Propagation characteristics Because of their long wavelengths, VLF radio waves can diffract around large obstacles and so are not blocked by mountain ranges, and can ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Navy
The Royal Navy (RN) is the United Kingdom's naval warfare force. Although warships were used by English and Scottish kings from the early medieval period, the first major maritime engagements were fought in the Hundred Years' War against France. The modern Royal Navy traces its origins to the early 16th century; the oldest of the UK's armed services, it is consequently known as the Senior Service. From the middle decades of the 17th century, and through the 18th century, the Royal Navy vied with the Dutch Navy and later with the French Navy for maritime supremacy. From the mid 18th century, it was the world's most powerful navy until the Second World War. The Royal Navy played a key part in establishing and defending the British Empire, and four Imperial fortress colonies and a string of imperial bases and coaling stations secured the Royal Navy's ability to assert naval superiority globally. Owing to this historical prominence, it is common, even among non-Britons, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
