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Fixed Station
Fixed station (also. fixed radio station) is a station in the fixed service.ITU Radio Regulations, Section IV. Radio Stations and Systems – Article 1.66, definition: ''fixed station / fixed radio station'' Each ''station'' is classified by the ''service'' in which it operates permanently or temporarily. Gallery Richtfunkantennen.jpg, Directional (beam) aerials, of radio relay stations. Radio Relay Station Former USAF microwave relay station ACE-High system at Lefkada, Greece, photo 6.JPG, Aerials of the ACE High troposcatter station, Lefkada Lefkada ( el, Λευκάδα, ''Lefkáda'', ), also known as Lefkas or Leukas ( Ancient Greek and Katharevousa: Λευκάς, ''Leukás'', modern pronunciation ''Lefkás'') and Leucadia, is a Greek island in the Ionian Sea on the west coast of G .... Shortwave Berlin.jpg, HF aerial on roof of the Chinese embassy, Berlin. References / sources International Telecommunication Union (ITU){{Radio station ITU Radio stations and sys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Station
Radio broadcasting is transmission of 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 broadcast radio receiver (''radio''). Stations are often affiliated with a radio network which provides content in a common radio format, either in broadcast syndication or simulcast or both. Radio stations broadcast with several different types of modulation: AM radio stations transmit in AM ( amplitude modulation), FM radio stations transmit in FM ( frequency modulation), which are older analog audio standards, while newer digital radio stations transmit in several digital audio standards: DAB ( digital audio broadcasting), HD radio, DRM ( Digital Radio Mondiale). Television br ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fixed Service
In telecommunications, a fixed service (or fixed radiocommunication service) is a radiocommunication service between specified fixed points. Classification The ITU Radio Regulations (article 1) classify variations of this radiocommunication service as follows: * Fixed-satellite service (article 1.21); Fixed station (article 1.66) * Inter-satellite service (article 1.22) * Earth exploration-satellite service (article 1.51) ** Meteorological-satellite service (article 1.52) Examples In line with national regulations there are numerous radio applications in accordance with ITU RR article 1.20 on fixed services. These include: * Radio relay * Troposcatter radiocommunication * Embassy radiocommunication, between fixed point * Fixed wireless Frequency allocation The allocation of radio frequencies is provided according to Article 5 of the ITU Radio Regulations (edition 2012).''ITU Radio Regulations, CHAPTER II – Frequencies, ARTICLE 5 Frequency allocations, Section IV – Tab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ACE High
Allied Command Europe Highband, better known as ACE High, was a fixed service NATO radiocommunication and early warning system dating back to 1956. After extensive testing ACE High was accepted by NATO to become operational in 1964/1965. The frequency supportability and frequency assignments were profited in accordance with the NATO Joint Civil/Military Frequency Agreement (NJFA). The system was designed to be a combined UHF troposcatter/microwave radio system, providing long-range communications in the form of telephone, telegraph and data traffic in the NATO chain of command. Its combined services produced over 200 channels and equipment was in place to multiplex them to contain up to 12 different calls each. There used to be 49 troposcatter links augmented by 40 ''Line Of Sight'' Microwave terrestrial stations, located in nine different NATO countries from northern Norway through central Europe to eastern Turkey. The transmitters broadcast at 832.56 - 959.28 MHz pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lefkada
Lefkada ( el, Λευκάδα, ''Lefkáda'', ), also known as Lefkas or Leukas ( Ancient Greek and Katharevousa: Λευκάς, ''Leukás'', modern pronunciation ''Lefkás'') and Leucadia, is a Greek island in the Ionian Sea on the west coast of Greece, connected to the mainland by a long causeway and floating bridge. The principal town of the island and seat of the municipality is Lefkada. It is situated on the northern part of the island, approximately 25 minutes by automobile away from Aktion National Airport. The island is part of the regional unit of Lefkada. Geography Lefkada measures from north to south, and from east to west. The area of the island is about , the area of the municipality (including the islands Kalamos, Kastos and several smaller islets) is . Its highest point is the mountain Stavrota, above sea level, situated in the middle of the island. The east coast section of the island has small resorts of Lygia, Nikiana and Perigiali, all north of Nidri, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chinese Embassy
This is a list of diplomatic missions of the People's Republic of China. The People's Republic of China has the largest diplomatic network in the world, representing the country's significant economic, commercial, political, cultural, and military links around the world. For over fifty years the PRC has been competing with the Republic of China for diplomatic recognition in the international community. Until the 1970s, most countries in the world recognized the Republic of China instead of the People's Republic of China. As of 2018, a small number of states have full diplomatic relations with the ROC (see Republic of China diplomatic missions); the ROC maintains unofficial relations with most states. Much like the US, the PRC does not have honorary consulates in other countries. In 2015, China opened its largest diplomatic mission in Pakistan. Africa * ** Algiers (Embassy) * ** Luanda (Embassy) * ** Cotonou (Embassy) * ** Gaborone (Embassy) * ** Ouagadougou (Embassy) * ** ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Stations And Systems ITU
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, spacecraft and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
