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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] |
Hillmorton
Hillmorton is a suburb of Rugby, Warwickshire, England, around south-east of Rugby town centre, forming much of the eastern half of the town. It is also a ward of the Borough of Rugby. Hillmorton was historically a village in its own right, but was incorporated into Rugby in 1932. Hillmorton also encompasses the Paddox housing estate to the west of the old village, which is shown on many maps as 'Hillmorton Paddox', this area however is part of a separate ward called 'Paddox'. History Settlements in the Hillmorton area spread into the prehistoric era. Archaeological digs at near Ashlawn Road in 2017 found remains of human settlement dating back to the Bronze Age (1000 – 500 BC), as well as numerous finds of occupation from the Roman period, including items of pottery and the remains of pottery or tile kilns. Before Rugby spread to the east, Hillmorton was a village. The village was formed by amalgamation of two settlements: ''Hull'' and ''Morton'': The former being the part ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minimum-shift Keying
In digital modulation, minimum-shift keying (MSK) is a type of continuous-phase frequency-shift keying that was developed in the late 1950s by Collins Radio employees Melvin L. Doelz and Earl T. Heald. Similar to OQPSK, MSK is encoded with bits alternating between quadrature components, with the Q component delayed by half the symbol period. However, instead of square pulses as OQPSK uses, MSK encodes each bit as a half sinusoid. This results in a constant-modulus signal (constant envelope signal), which reduces problems caused by non-linear distortion. In addition to being viewed as related to OQPSK, MSK can also be viewed as a continuous-phase frequency-shift keyed ( CPFSK) signal with a frequency separation of one-half the bit rate. In MSK the difference between the higher and lower frequency is identical to half the bit rate. Consequently, the waveforms used to represent a 0 and a 1 bit differ by exactly half a carrier period. Thus, the maximum frequency deviation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
British Pathe
British may refer to: Peoples, culture, and language * British people, nationals or natives of the United Kingdom, British Overseas Territories, and Crown Dependencies. ** Britishness, the British identity and common culture * British English, the English language as spoken and written in the United Kingdom or, more broadly, throughout the British Isles * Celtic Britons, an ancient ethno-linguistic group * Brittonic languages, a branch of the Insular Celtic language family (formerly called British) ** Common Brittonic, an ancient language Other uses *''Brit(ish)'', a 2018 memoir by Afua Hirsch *People or things associated with: ** Great Britain, an island ** United Kingdom, a sovereign state ** Kingdom of Great Britain (1707–1800) ** United Kingdom of Great Britain and Ireland (1801–1922) See also * Terminology of the British Isles * Alternative names for the British * English (other) * Britannic (other) * British Isles * Brit (other) * Briton (d ... [...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 satel ... [...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 of tallest buildings and structures in the United Kingdom by usage#Tallest structures, 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 th ... [...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 to k ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Houlton School
Houlton School is a co-educational secondary school and sixth form located in Houlton, Warwickshire, England. The school's buildings have been developed on the historic site of the Rugby Radio Station. Designed to serve 1100 students, the school opened on 1 September 2021 with its first cohort of 180 year 7 students. History Houlton School in Rugby, Warwickshire, is located on the grounds of the Rugby Radio Station, which was established in 1928. According to developer Morgan Sindall Construction, the station "at the height of its power in the mid-20th century, was the largest in the world. In 1927 the site transmitted the first transatlantic radio signal." The station was phased out between 2003 and 2007, and it became a Grade II-listed site on the National Heritage List for England in February 2005. Van Heyningen and Haward Architects created the plan that transformed the former Rugby Radio Station power building and its water tower, and added three new teaching blocks. M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LORAN-C
Loran-C is a hyperbolic radio navigation system that allows a receiver to determine its position by listening to low frequency radio signals that are transmitted by fixed land-based radio beacons. Loran-C combined two different techniques to provide a signal that was both long-range and highly accurate, features that had been incompatible. Its disadvantage was the expense of the equipment needed to interpret the signals, which meant that Loran-C was used primarily by militaries after it was introduced in 1957. By the 1970s, the cost, weight and size of electronics needed to implement Loran-C had been dramatically reduced because of the introduction of solid-state electronics and, from the mid-1970s, early microcontrollers to process the signal. Low-cost and easy-to-use Loran-C units became common from the late 1970s, especially in the early 1980s, and the earlier LORAN system was discontinued in favor of installing more Loran-C stations around the world. Loran-C became one of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anthorn Radio Station
Anthorn Radio Station is a naval and government radio transmitting station located near Anthorn, Cumbria, England, overlooking the Solway Firth, and is operated by Babcock International (with whom former operators VT Communications are now merged). It has three transmitters: one VLF; one LF; and an eLORAN transmitter. It is on the site of the World War II military airfield which was operated by the Fleet Air Arm as HMS ''Nuthatch''. RNAS Anthorn John Laing & Son began building an airfield at Anthorn for the Fleet Air Arm in late 1943, and Royal Naval Air Station, Anthorn, was commissioned as HMS ''Nuthatch'' on 7 September 1944, with three tarmacadam runways. It was the base of No. 1 Aircraft Receipt and Despatch Unit (No. 1 ARDU), which had the job of receiving aircraft fresh from manufacturers, modifying them to Service standards and despatching them to operational squadrons, with the unit specialising in the Vought F4U Corsair, Supermarine Seafire, Fairey Barracuda and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frequency Standard
A frequency standard is a stable oscillator used for frequency calibration or reference. A frequency standard generates a fundamental frequency with a high degree of accuracy and precision. Harmonics of this fundamental frequency are used to provide reference points. Since time is the reciprocal of frequency, it is relatively easy to derive a time standard from a frequency standard. A standard clock comprises a frequency standard, a device to count off the cycles of the oscillation emitted by the frequency standard, and a means of displaying or outputting the result. Frequency standards in a network or facility are sometimes administratively designated as ''primary'' or ''secondary''. The terms ''primary'' and ''secondary'', as used in this context, should not be confused with the respective technical meanings of these words in the discipline of precise time and frequency. Frequency reference A frequency reference is an instrument used for providing a stable frequency of so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MSF Time Signal
The Time from NPL is a radio signal broadcast from the Anthorn Radio Station near Anthorn, Cumbria, which serves as the United Kingdom's national time reference. The time signal is derived from three atomic clocks installed at the transmitter site, and is based on time standards maintained by the UK's National Physical Laboratory (NPL) in Teddington. The service is provided by Babcock International (which acquired former providers VT Communications), under contract to the NPL. It was funded by the former Department for Business, Innovation and Skills; NPL Management Limited (NPLML) was owned by the Department for Business, Energy and Industrial Strategy (BEIS), and NPL operated as a public corporation. The signal, also known as the MSF signal (and formerly the Rugby clock), is broadcast at a highly accurate frequency of 60 kHz and can be received throughout the UK, and in much of northern and western Europe. The signal's carrier frequency is maintained at 60 kHz to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Single-sideband Modulation
In radio communications, single-sideband modulation (SSB) or single-sideband suppressed-carrier modulation (SSB-SC) is a type of modulation used to transmit information, such as an audio signal, by radio waves. A refinement of amplitude modulation, it uses transmitter power and bandwidth more efficiently. Amplitude modulation produces an output signal the bandwidth of which is twice the maximum frequency of the original baseband signal. Single-sideband modulation avoids this bandwidth increase, and the power wasted on a carrier, at the cost of increased device complexity and more difficult tuning at the receiver. Basic concept Radio transmitters work by mixing a radio frequency (RF) signal of a specific frequency, the carrier wave, with the audio signal to be broadcast. In AM transmitters this mixing usually takes place in the final RF amplifier (high level modulation). It is less common and much less efficient to do the mixing at low power and then amplify it in a linear ampl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
