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Tatsfield Receiving Station
The Tatsfield Receiving Station – known formally as the ''BBC Engineering Measurement and Receiving Station'' – was a radio broadcasting signals-receiving and frequency-measuring facility operated by the British Broadcasting Corporation (BBC) on the North Downs just south of London in the United Kingdom. The station was in operation between 1929 and 1974. Functions The Tatsfield station's work included: *Measuring to high degrees of accuracy the frequencies of BBC radio and TV transmitters. It is important that broadcast transmitters remain on their assigned frequency in order to avoid interfering with other users of the radio spectrum. A particularly high level of frequency stability is required in the case of several transmitters carrying the same programme on a single frequency in a synchronised network. *Measuring the frequencies of foreign transmitters, exchanging such information with similar receiving stations abroad, in cooperation initially with the International Bro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Broadcasting
Radio broadcasting is the broadcasting of audio signal, audio (sound), sometimes with related metadata, by radio waves to radio receivers belonging to a public audience. In terrestrial radio broadcasting the radio waves are broadcast by a land-based radio station, while in ''satellite radio'' the radio waves are broadcast by a satellite in Earth orbit. To receive the content the listener must have a Radio receiver, broadcast radio receiver (''radio''). Stations are often affiliated with a radio network that provides content in a common radio format, either in broadcast syndication or simulcast, or both. The code, encoding of a radio broadcast depends on whether it uses an analog signal, analog or digital signal. Analog radio broadcasts use one of two types of radio wave modulation: amplitude modulation for AM radio, or frequency modulation for FM radio. Newer, digital radio stations transmit in several different digital audio standards, such as DAB (Digital Audio Broadcas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Open-source Intelligence
Open source intelligence (OSINT) is the collection and analysis of data gathered from open sources (overt sources and publicly available information) to produce actionable intelligence. OSINT is primarily used in national security, law enforcement, and competitive intelligence, business intelligence functions and is of value to analysts who use non-sensitive intelligence in answering classified information, classified, Classified information#Unclassified, unclassified, or trade secret, proprietary intelligence intelligence requirement, requirements across the previous intelligence disciplines. Categories OSINT sources can be divided up into six different categories of information flow: *Media: print newspapers, magazines, radio, and television from across and between countries. *Internet: online publications, blogs, discussion groups, citizen media (i.e. – cell phone digital video, videos, and user created content), YouTube, and other social media websites (i.e. – Facebook ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the world's countries participated, with many nations mobilising all resources in pursuit of total war. Tanks in World War II, Tanks and Air warfare of World War II, aircraft played major roles, enabling the strategic bombing of cities and delivery of the Atomic bombings of Hiroshima and Nagasaki, first and only nuclear weapons ever used in war. World War II is the List of wars by death toll, deadliest conflict in history, causing World War II casualties, the death of 70 to 85 million people, more than half of whom were civilians. Millions died in genocides, including the Holocaust, and by massacres, starvation, and disease. After the Allied victory, Allied-occupied Germany, Germany, Allied-occupied Austria, Austria, Occupation of Japan, Japan, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
London Borough Of Bromley
The London Borough of Bromley () is a London Borough, borough in London, England. It is the largest and southeasternmost borough in London, and borders the county of Kent, of which it formed part until 1965. The borough's population in the 2021 census was 329,991. It is named after Bromley, its principal town. Other districts are Penge, Hayes, Bromley, Hayes, West Wickham, Chislehurst, Beckenham and Orpington. The local authority is Bromley London Borough Council. Geography The borough is the largest in Greater London by area and occupies . The majority of the borough is Metropolitan Green Belt, including nearly all of the land south of the A232-A21 route between West Wickham and Pratt's Bottom. Consequently, it is also perhaps the most rural borough and contains more of the North Downs than any other, as that escarpment is broad between Bromley and Banstead. This is also reflected in its population density, which is the lowest of the 32 London boroughs. Most of the population l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kent
Kent is a Ceremonial counties of England, ceremonial county in South East England. It is bordered by Essex across the Thames Estuary to the north, the Strait of Dover to the south-east, East Sussex to the south-west, Surrey to the west, and Greater London to the north-west. The county town is Maidstone. The county has an area of and had population of 1,875,893 in 2022, making it the Ceremonial counties of England#Lieutenancy areas since 1997, fifth most populous county in England. The north of the county contains a conurbation which includes the towns of Chatham, Kent, Chatham, Gillingham, Kent, Gillingham, and Rochester, Kent, Rochester. Other large towns are Maidstone and Ashford, Kent, Ashford, and the City of Canterbury, borough of Canterbury holds City status in the United Kingdom, city status. For local government purposes Kent consists of a non-metropolitan county, with twelve districts, and the unitary authority area of Medway. The county historically included south-ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Keston
Keston is a village in Greater London, England, located within the London Borough of Bromley, Greater London. Prior to 1965 it was within the historic county of Kent. It is part suburban, part rural in nature and lies on the edge of Hayes Common, just beyond the London conurbation to the south of Bromley Common. It includes the small hamlet of Nash to the southwest. The northern, more suburban part of Keston is sometimes referred to as Keston Mark. History Flint implements and pit dwellings on Keston and Hayes Commons show occupation of the area back to at least 3000 BCE, and there are Iron Age encampments in Holwood Park and on Keston Common. In the valley below the village are the ruins of a complex of 3rd century AD Roman tombs and mausolea () connected with the nearby 1st - 4th century AD Roman villa excavated 1967-1992 (). Sited closer to the original Keston Court than the main village itself, Keston's small medieval church is unusual in that does not have a ded ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
M25 Motorway
The M25 or London Orbital Motorway is a major ring road encircling most of Greater London. The motorway is one of the most important roads in the UK and one of the busiest. Margaret Thatcher opened the final section in 1986, making the M25 the longest ring road in Europe upon opening. The Dartford Crossing completes the orbital route but is not classed as motorway; it is classed as a trunk road and designated as the A282. In some cases, including notable legal contexts such as the Communications Act 2003, the M25 is used as a ''de facto'' alternative boundary for Greater London. In the 1944 ''Greater London Plan'', Patrick Abercrombie proposed an orbital motorway around London. This evolved into the London Ringways project in the early 1960s, and by 1966, planning had started on two projects, London Ringways#Ringway 3, Ringway 3 to the north and London Ringways#Ringway 4, Ringway 4 to the south. By the time the first sections opened in 1975, it was decided the ringways would b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ordnance Survey
The Ordnance Survey (OS) is the national mapping agency for Great Britain. The agency's name indicates its original military purpose (see Artillery, ordnance and surveying), which was to map Scotland in the wake of the Jacobite rising of 1745. There was also a more general and nationwide need in light of the potential threat of invasion during the Napoleonic Wars. Since 1 April 2015, the Ordnance Survey has operated as Ordnance Survey Ltd, a state-owned enterprise, government-owned company, 100% in public ownership. The Ordnance Survey Board remains accountable to the Secretary of State for Science, Innovation and Technology. It was also a member of the Public Data Group. Paper maps represent only 5% of the company's annual revenue. It produces digital map data, online route planning and sharing services and mobile apps, plus many other location-based products for business, government and consumers. Ordnance Survey mapping is usually classified as either "Scale (map), lar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greater London
Greater London is an administrative area in England, coterminous with the London region, containing most of the continuous urban area of London. It contains 33 local government districts: the 32 London boroughs, which form a Ceremonial counties of England, ceremonial county also called Greater London, and the City of London. The Greater London Authority is responsible for strategic local government across the region, and regular local government is the responsibility of the borough councils and the City of London Corporation. Greater London is bordered by the ceremonial counties of Hertfordshire to the north, Essex to the north-east, Kent to the south-east, Surrey to the south, and Berkshire and Buckinghamshire to the west. Greater London has a land area of and had an estimated population of in . The ceremonial county of Greater London is only slightly smaller, with an area of and a population of in . The area is almost entirely urbanised and contains the majority of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surrey
Surrey () is a Ceremonial counties of England, ceremonial county in South East England. It is bordered by Greater London to the northeast, Kent to the east, East Sussex, East and West Sussex to the south, and Hampshire and Berkshire to the west. The largest settlement is Woking. The county has an area of and a population of 1,214,540. Much of the north of the county forms part of the Greater London Built-up Area, which includes the Suburb, suburbs within the M25 motorway as well as Woking (103,900), Guildford (77,057), and Leatherhead (32,522). The west of the county contains part of Farnborough/Aldershot built-up area, built-up area which includes Camberley, Farnham, and Frimley and which extends into Hampshire and Berkshire. The south of the county is rural, and its largest settlements are Horley (22,693) and Godalming (22,689). For Local government in England, local government purposes Surrey is a non-metropolitan county with eleven districts. The county historically includ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tatsfield
Tatsfield is a village and civil parish in the Tandridge District of Surrey, England. It is located 3.3 miles north west of Westerham and 3.9 miles north east of Oxted, and is adjacent to the Surrey border with both Greater London and Kent. Geography The village itself is on the North Downs with its centre near its highest point, at an altitude of around north of the ridge of the North Downs where the North Downs Way passes through the parish. The 'village' area is in a small salient of Surrey into the London Borough of Bromley, Greater London (to the west, north and east). Biggin Hill is immediately to the north. The boundary with Kent is less than mile to the east. Tatsfield is covered by the Westerham post town, meaning Tatsfield's postal county was Kent. Since 1996, the postal county has not been required in postal addresses. Etymology The origin of the village name is uncertain. The English Place Name Society suggests it is derived from 'a field or open land belongi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Titsey
Titsey is a rural village and a civil parish on the North Downs almost wholly within the M25 London Orbital Motorway in the Tandridge District of Surrey, England. In local government it forms the south-western part of the ward ''Tatsfield and Titsey'' and in national statistics approximates to output area E00157289. It has no railway stations however one is centred south-west, Oxted which also has the administrative centre of the district. Approximately half of it land is owned by a charity running the Titsey Place estate, with the remainder being a mixture of common and privately owned woodland and smallholdings. History The village lay within the Tandridge hundred, of greatest use in the Anglo-Saxon Kingdom of England and it continues to form a parish in the church of England until its church became appropriated by that of Tatsfield. The eastern parish boundary follows the London to Lewes Way Roman road which descends the escarpment of the North Downs here, cross ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
