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Galaxy 18
Galaxy 18 is a Space Systems/Loral (SS/L) 1300-series hybrid communications satellite owned by Intelsat and located in geosynchronous orbit at 123° W longitude, serving the continental United States, Alaska, Hawaii, Mexico, and Canada with 24 C band, and 24 Ku band transponders. Galaxy 18 replaced Galaxy 10R near the end of its design life. Galaxy 18 was launched on May 21, 2008. The launch took place successfully at 09:43 GMT. Free-to-air television Galaxy 18 is the home of a number of minor television networks, and in the past hosted the stations of Equity Media Holdings before its 2009 bankruptcy, where it used the satellite to beam several major network affiliates to their appropriate local transmitters, along with the local cable providers carrying them as Equity hubbed their master control from a hub in Little Rock, Arkansas ( The "Little Rock") , government_type = Council-manager , leader_title = Mayor , leader_name = F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intelsat
Intelsat S.A. (formerly INTEL-SAT, INTELSAT, Intelsat) is a multinational satellite services provider with corporate headquarters in Luxembourg and administrative headquarters in Tysons Corner, Virginia, United States. Originally formed as International Telecommunications Satellite Organization (''ITSO'', or INTELSAT), from 1964 to 2001, it was an intergovernmental consortium owning and managing a constellation of communications satellites providing international telecommunications and broadcast services. As of June 2022, Intelsat operated a fleet of 52 communications satellites which was then one of the world's largest fleets. In 2020, the company announced plans to procure, build and launch seven C-band satellites over the next several years. These C-band satellites will contribute to the acceleration of America's 5G buildout. In early 2022, the company announced contracts for four GEO software defined satellites (SDS), two in partnership with Airbus and two in partnership ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alaska
Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S., it borders the Canadian province of British Columbia and the Yukon territory to the east; it also shares a maritime border with the Russian Federation's Chukotka Autonomous Okrug to the west, just across the Bering Strait. To the north are the Chukchi and Beaufort Seas of the Arctic Ocean, while the Pacific Ocean lies to the south and southwest. Alaska is by far the largest U.S. state by area, comprising more total area than the next three largest states (Texas, California, and Montana) combined. It represents the seventh-largest subnational division in the world. It is the third-least populous and the most sparsely populated state, but by far the continent's most populous territory located mostly north of the 60th parallel, with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spacecraft Launched In 2008
A spacecraft is a vehicle or machine designed to fly in outer space. A type of artificial satellite, spacecraft are used for a variety of purposes, including communications, Earth observation, meteorology, navigation, space colonization, planetary exploration, and transportation of humans and cargo. All spacecraft except single-stage-to-orbit vehicles cannot get into space on their own, and require a launch vehicle (carrier rocket). On a sub-orbital spaceflight, a space vehicle enters space and then returns to the surface without having gained sufficient energy or velocity to make a full Earth orbit. For orbital spaceflights, spacecraft enter closed orbits around the Earth or around other celestial bodies. Spacecraft used for human spaceflight carry people on board as crew or passengers from start or on orbit (space stations) only, whereas those used for robotic space missions operate either autonomously or telerobotically. Robotic spacecraft used to support scientific res ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Satellite Television
Satellite television is a service that delivers television programming to viewers by relaying it from a communications satellite orbiting the Earth directly to the viewer's location. The signals are received via an outdoor parabolic antenna commonly referred to as a satellite dish and a low-noise block downconverter. A satellite receiver then decodes the desired television program for viewing on a television set. Receivers can be external set-top boxes, or a built-in television tuner. Satellite television provides a wide range of channels and services. It is usually the only television available in many remote geographic areas without terrestrial television or cable television service. Modern systems signals are relayed from a communications satellite on the X band (8–12 GHz) or Ku band (12–18 GHz) frequencies requiring only a small dish less than a meter in diameter. The first satellite TV systems were an obsolete type now known as television receive-only. Thes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Communications Satellites In Geostationary Orbit
Communication (from la, communicare, meaning "to share" or "to be in relation with") is usually defined as the transmission of information. The term may also refer to the message communicated through such transmissions or the field of inquiry studying them. There are many disagreements about its precise definition. John Peters argues that the difficulty of defining communication emerges from the fact that communication is both a universal phenomenon and a specific discipline of institutional academic study. One definitional strategy involves limiting what can be included in the category of communication (for example, requiring a "conscious intent" to persuade). By this logic, one possible definition of communication is the act of developing meaning among entities or groups through the use of sufficiently mutually understood signs, symbols, and semiotic conventions. An important distinction is between verbal communication, which happens through the use of a language, and non ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Little Rock, Arkansas
(The Little Rock, The "Little Rock") , government_type = council-manager government, Council-manager , leader_title = List of mayors of Little Rock, Arkansas, Mayor , leader_name = Frank Scott Jr. , leader_party = Democratic Party (United States), D , leader_title2 = City council, Council , leader_name2 = Little Rock Board of Directors , unit_pref = Imperial , area_total_sq_mi = 123.00 , area_total_km2 = 318.58 , area_land_sq_mi = 120.05 , area_land_km2 = 310.92 , area_metro_sq_mi = 4090.34 , area_metro_km2 = 10593.94 , population_as_of = 2020 United States Census, 2020 , population_est = , pop_est_as_of = , population_demonym = Little Rocker , population_footnotes = , population_total = 202591 , population_rank = US: List of United States cities by population, 118 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centralcasting
In terrestrial radio and television broadcasting, centralcasting refers to the use of systems automation by which customised signals for broadcast by multiple individual stations may be created at one central facility. Definition Centralcasting is a form of broadcast automation which operates on the presumption that large quantities of content are similar and are handled in a consistent or repetitive manner across multiple stations in a broadcast station group. While each individual station has its own digital on-screen graphic logo, call sign and identity, much of the content on a typical affiliate station consists of a common television network or syndicated programming with a small number of local broadcast programming time blocks employed for television news and sports television coverage, public affairs programming or local television commercials. Traditionally, many operations at an individual broadcast station were handled manually by broadcast engineering technici ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Master Control
Master control is the technical hub of a broadcast operation common among most over-the-air television stations and television networks. It is distinct from a production control room (PCR) in television studios where the activities such as switching from camera to camera are coordinated. A transmission control room (TCR) is usually smaller in size and is a scaled down version of centralcasting. Master control is the final point before a signal is transmitted over-the-air for terrestrial television or cablecast, satellite provider for broadcast, or sent on to a cable television operator. Television master control rooms include banks of video monitors, satellite receivers, videotape machines, video servers, transmission equipment, and, more recently, computer broadcast automation equipment for recording and playback of television programming. Master control is generally staffed with one or two master control operators around-the-clock to ensure continuous operation. Master cont ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Equity Media Holdings
Equity Media Holdings Corporation was a broadcasting company based in Little Rock, Arkansas that owned and operated television stations across the United States. Prior to March 30, 2007, the company was known as Equity Broadcasting, a name later used for its broadcast station subsidiary. The company had a focus on Hispanic and Asian American communities in large markets while owning a combination of English-language network affiliates in medium and small markets. Equity was known for its use of broadcast automation to control dozens of small, local UHF television broadcasting stations from one central Little Rock location; the feeds were readily visible on free-to-air satellite television through much of North America, despite the very small terrestrial footprint of the individual stations over the air. Most commonly, Equity stations were low-power television affiliates of Univision, Fox, The WB/UPN or carried music videos and classic television reruns. In late 2005, Equity laun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galaxy 10R
Galaxy 10R was an American communications satellite which was operated by PanAmSat, and later Intelsat. It was constructed by Hughes and is based on the HS-601HP satellite bus. Launch occurred on 25 January 2000, at 01:04. The launch was contracted by Arianespace, and used an Ariane 4 42L-3 carrier rocket flying from ELA-2 at the Guiana Space Centre. Galaxy 10R was built to replace the Galaxy 10 satellite, which had been lost in a launch failure on the maiden flight of the Delta III in 1998. It was launched just fourteen months after the contract to build the satellite had been signed, due to Hughes' advance production of components to allow quick production of replacement satellites. Following its launch and on-orbit testing, it was placed in geostationary orbit at 123° West, from where it provided communications services to North America. It was expected to remain in service for fifteen years, however following a malfunction of its Xenon Ion Propulsion System in August 2004, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transponders
In telecommunications, a transponder is a device that, upon receiving a signal, emits a different signal in response. The term is a blend of ''transmitter'' and ''responder''. In air navigation or radio frequency identification, a flight transponder is an automated transceiver in an aircraft that emits a coded identifying signal in response to an interrogating received signal. In a communications satellite, a satellite transponder receives signals over a range of uplink frequencies, usually from a satellite ground station; the transponder amplifies them, and re-transmits them on a different set of downlink frequencies to receivers on Earth, often without changing the content of the received signal or signals. Satellite/broadcast communications A communications satellite’s channels are called transponders because each is a separate transceiver or repeater. With digital video data compression and multiplexing, several video and audio channels may travel through a single trans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hawaii
Hawaii ( ; haw, Hawaii or ) is a state in the Western United States, located in the Pacific Ocean about from the U.S. mainland. It is the only U.S. state outside North America, the only state that is an archipelago, and the only state geographically located within the tropics. Hawaii comprises nearly the entire Hawaiian archipelago, 137 volcanic islands spanning that are physiographically and ethnologically part of the Polynesian subregion of Oceania. The state's ocean coastline is consequently the fourth-longest in the U.S., at about . The eight main islands, from northwest to southeast, are Niihau, Kauai, Oahu, Molokai, Lānai, Kahoolawe, Maui, and Hawaii—the last of these, after which the state is named, is often called the "Big Island" or "Hawaii Island" to avoid confusion with the state or archipelago. The uninhabited Northwestern Hawaiian Islands make up most of the Papahānaumokuākea Marine National Monument, the United States' largest protected ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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