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Channel Light Vessel Automatic
Channel was the name of a lightvessel station located in the English Channel between 1979 and August 2021, when it was replaced with a light buoy. It was also one of the 22 List of coastal weather stations in the British Isles, coastal weather stations whose conditions were reported in the BBC Shipping Forecast. The vessel's position was , approximately north-northwest of Guernsey. The lightvessel marked the western end of the English Channel Traffic Separation Scheme, Traffic Separation Zone. Signals The light, on a tower, had a range of about 15 miles, and flashed for .3 seconds every 15 seconds. The fog signal gave a single 2 second blast every 20 seconds. The Frequency agility, agile Racon, radio beacon transmitted the letter "O" in morse code on X band and S band frequencies for nine seconds every thirty seconds. History The Channel lightvessel was established in 1979 as part of the Off Casquets Traffic Separation Scheme (TSS), introduced following the 1978 grounding of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and Northern Ireland. The United Kingdom includes the island of Great Britain, the north-eastern part of the island of Ireland, and many smaller islands within the British Isles. Northern Ireland shares a land border with the Republic of Ireland; otherwise, the United Kingdom is surrounded by the Atlantic Ocean, the North Sea, the English Channel, the Celtic Sea and the Irish Sea. The total area of the United Kingdom is , with an estimated 2020 population of more than 67 million people. The United Kingdom has evolved from a series of annexations, unions and separations of constituent countries over several hundred years. The Treaty of Union between the Kingdom of England (which included Wales, annexed in 1542) and the Kingdom of Scotland in 170 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lightships Of The United Kingdom
Lightship may refer to: * Lightvessel, a moored ship that has light beacons mounted as navigational aids * ''The Lightship'', a 1985 American drama film directed by Jerzy Skolimowski *''The Lightship (novel)'', by Siegfried Lenz on which the film was based * Lightcraft, a space- or air-vehicle driven by laser propulsion * Light displacement, a displacement figure that measures a ship complete in all respects, but without consumables, stores, cargo, crew, and effects * Lightships, an alias of Gerard Love of Teenage Fanclub * a spacecraft which uses a solar sail for propulsion * a type of blimp operated by The Lightship Group, a subsidiary of the American Blimp Corporation See also * List of lightships of the United States * Lightvessels in the United Kingdom The history of the many lightvessel stations of Great Britain goes back over 250 years to the placement of the world's first lightship at the Nore in the early 18th century. A lightvessel station is a named position at whi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
THV Galatea
THV ''Galatea'' is a lighthouse tender operated by Trinity House, the body responsible for the operation of lighthouses and marine navigation aids around the coasts of England, Wales and the Channel Islands. History THV ''Galatea'' was launched in July 2006, replacing the THV ''Mermaid'', in service with Trinity House since 1987. ''Mermaid'' was sold to the Gardline group of Great Yarmouth, for conversion to survey vessel. ''Galatea'' is a sister vessel to the NLV ''Pharos''. The Queen and Prince Philip visited the Pool of London on 17 October 2007 for the naming of ''Galatea'', moored alongside . This is the second Trinity House vessel named ''Galatea''. The first, a paddle yacht built in 1868, served Trinity House until 1895. She was named in honour of which had recently completed a round-the-world voyage under the command of Queen Victoria's second son, Captain the Duke of Edinburgh, who was Master of Trinity House at the time. ''Galatea'' attended the commissioning of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amoco Cadiz
''Amoco Cadiz'' was a VLCC (very large crude carrier) owned by Amoco Transport Corp and transporting crude oil for Shell Oil. Operating under the Liberian flag of convenience, she ran aground on 16 March 1978 on Portsall Rocks, from the coast of Brittany, France. Ultimately she split in three and sank, resulting in the largest oil spill of its kind in history to that date. Oil spill On 16 March 1978 in a southwesterly gale, the ''Amoco Cadiz'' passed Ushant at the western tip of Brittany, headed for Lyme Bay in the United Kingdom. At 9:46 am when the supertanker was north of Ushant and west of Portsall she turned to avoid another ship and her rudder jammed, full over to port. The captain shut down the engine and attempted to make repairs, but they were not successful. Meanwhile, the wind began blowing from the northwest, driving the ship toward the coast. By the time the tugboat ''Pacific'' successfully attached a hawser, it was 2:00 pm and the ''Amoco Cadiz'' had drifted ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
S Band
The S band is a designation by the Institute of Electrical and Electronics Engineers (IEEE) for a part of the microwave band of the electromagnetic spectrum covering frequencies from 2 to 4 gigahertz (GHz). Thus it crosses the conventional boundary between the UHF and SHF bands at 3.0 GHz. The S band is used by airport surveillance radar for air traffic control, weather radar, surface ship radar, and some communications satellites, especially those used by NASA to communicate with the Space Shuttle and the International Space Station. The 10 cm radar short-band ranges roughly from 1.55 to 5.2 GHz. The S band also contains the 2.4–2.483 GHz ISM band, widely used for low power unlicensed microwave devices such as cordless phones, wireless headphones (Bluetooth), wireless networking (WiFi), garage door openers, keyless vehicle locks, baby monitors as well as for medical diathermy machines and microwave ovens (typically at 2.495 GHz). India's re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
X Band
The X band is the designation for a band of frequencies in the microwave radio region of the electromagnetic spectrum. In some cases, such as in communication engineering, the frequency range of the X band is rather indefinitely set at approximately 7.0–11.2 GHz. In radar engineering, the frequency range is specified by the Institute of Electrical and Electronics Engineers (IEEE) as 8.0–12.0 GHz. The X band is used for radar, satellite communication, and wireless computer networks. Radar X band is used in radar applications including continuous-wave, pulsed, single- polarization, dual-polarization, synthetic aperture radar, and phased arrays. X band radar frequency sub-bands are used in civil, military, and government institutions for weather monitoring, air traffic control, maritime vessel traffic control, defense tracking, and vehicle speed detection for law enforcement. X band is often used in modern radars. The shorter wavelengths of the X band allow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morse Code
Morse code is a method used in telecommunication to encode text characters as standardized sequences of two different signal durations, called ''dots'' and ''dashes'', or ''dits'' and ''dahs''. Morse code is named after Samuel Morse, one of the inventors of the telegraph. International Morse code encodes the 26 basic Latin letters through , one accented Latin letter (), the Arabic numerals, and a small set of punctuation and procedural signals ( prosigns). There is no distinction between upper and lower case letters. Each Morse code symbol is formed by a sequence of ''dits'' and ''dahs''. The ''dit'' duration is the basic unit of time measurement in Morse code transmission. The duration of a ''dah'' is three times the duration of a ''dit''. Each ''dit'' or ''dah'' within an encoded character is followed by a period of signal absence, called a ''space'', equal to the ''dit'' duration. The letters of a word are separated by a space of duration equal to three ''dits'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Racon
Radar beacon (short: racon) is – according to ''article 1.103'' of the International Telecommunication Union's (ITU) ITU Radio Regulations (RR) – defined as "A transmitter-receiver associated with a fixed navigational mark which, when triggered by a radar, automatically returns a distinctive signal which can appear on the display of the triggering radar, providing range, bearing and identification information." Each ''station'' (transmitter-receiver, transceiver or transponder) shall be classified by the ''service'' in which it operates permanently or temporarily. Principle of operation When a racon receives a radar pulse, it responds with a signal on the same frequency which puts an image on the radar display. This takes the form of a short line of dots and dashes forming a Morse character radiating away from the location of the beacon on the normal plan position indicator radar display. The length of the line usually corresponds to the equivalent of a few nautical miles ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frequency Agility
Frequency agility is the ability of a radar system to quickly shift its operating frequency to account for atmospheric effects, jamming, mutual interference with friendly sources, or to make it more difficult to locate the radar broadcaster through radio direction finding. The term can also be applied to other fields, including lasers or traditional radio transceivers using frequency-division multiplexing, but it remains most closely associated with the radar field and these other roles generally use the more generic term "frequency hopping". Description Jamming Radar systems generally operate by sending out short pulses of radio energy and then turning off the broadcaster and listening for the returning echoes from various objects. Because efficient signal reception requires careful tuning throughout the electronics in the transceiver, each operating frequency required a dedicated transceiver. Due to the size of the tube-based electronics used to construct the transceivers, early ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guernsey
Guernsey (; Guernésiais: ''Guernési''; french: Guernesey) is an island in the English Channel off the coast of Normandy that is part of the Bailiwick of Guernsey, a British Crown Dependency. It is the second largest of the Channel Islands, an island group roughly north of Saint-Malo and west of the Cotentin Peninsula. The jurisdiction consists of ten parishes on the island of Guernsey, three other inhabited islands ( Herm, Jethou and Lihou), and many small islets and rocks. It is not part of the United Kingdom, although defence and some aspects of international relations are managed by the UK. Although the bailiwicks of Jersey and Guernsey are often referred to collectively as the Channel Islands, the "Channel Islands" are not a constitutional or political unit. Jersey has a separate relationship to the Crown from the other Crown dependencies of Guernsey and the Isle of Man, although all are held by the monarch of the United Kingdom. The island has a mixed British-Norm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trinity House Ensign
The Christian doctrine of the Trinity (, from 'threefold') is the central dogma concerning the nature of God in most Christian churches, which defines one God existing in three coequal, coeternal, consubstantial divine persons: God the Father, God the Son (Jesus Christ) and God the Holy Spirit, three distinct persons sharing one ''homoousion'' (essence) "each is God, complete and whole." As the Fourth Lateran Council declared, it is the Father who begets, the Son who is begotten, and the Holy Spirit who proceeds. In this context, the three persons define God is, while the one essence defines God is. This expresses at once their distinction and their indissoluble unity. Thus, the entire process of creation and grace is viewed as a single shared action of the three divine persons, in which each person manifests the attributes unique to them in the Trinity, thereby proving that everything comes "from the Father," "through the Son," and "in the Holy Spirit." This doctrine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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