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Eutelsat W3A
Eutelsat W3A is a communications satellite owned by Eutelsat S.A. Placed at 7° East, it broadcasts TV channels, radios and other digital data. It entered operational service on 15 May 2004. Built by EADS Astrium on a Eurostar-3000S satellite bus, it is equipped with 42 Ku-band transponders broadcasting in Europe, North Africa, the Middle East and sub-Saharan Africa and 2 Ka-band transponders. It was launched on 15 March 2004 at 23:06:00 UTC by Proton-M / Briz-M from the Baikonur Cosmodrome. It had a launch mass of . Its estimated lifespan is 15 years. It is equipped with Skyplex technique for multiplexing on board. It is the first geostationary satellite to use a lithium-ion battery. It is used by the European Broadcasting Union's Eurovision network. It broadcasts the Turkish Digiturk offerings and numerous Internet connection services such as OpenSky, Hughes Europe Hughes Europe is an operating and sales organisation for Hughes Network Systems, LLC (HUGHES) wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Communications Satellite
A communications satellite is an artificial satellite that relays and amplifies radio telecommunication signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth. Communications satellites are used for television, telephone, radio, internet, and military applications. Many communications satellites are in geostationary orbit above the equator, so that the satellite appears stationary at the same point in the sky; therefore the satellite dish antennas of ground stations can be aimed permanently at that spot and do not have to move to track the satellite. Others form satellite constellations in low Earth orbit, where antennas on the ground have to follow the position of the satellites and switch between satellites frequently. The high frequency radio waves used for telecommunications links travel by line of sight and so are obstructed by the curve of the Earth. The purpose of communications sate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eutelsat 33B
Eutelsat 33B, formerly known as Eutelsat 3F1, Eutelsat W1, Eutelsat W5, Eutelsat 70A and Eutelsat 25C, is a telecommunications satellite owned by Eutelsat Consortium. Eutelsat W5 provides coverage to Europe, Middle East, and Asia. The satellite can use either six steerable beams or two fixed beams to provide the coverage. Satellite description Eutelsat W1 was built by Aérospatiale and is a Spacebus-3000B2 satellite. The satellite measures and has a span of on orbit. Eutelsat W1 features three axis stabilization to help keep it stable and pointed at the Earth at all times. It features twenty-four Ku band transponders. It was used to provide video distribution and contribution links, occasional-use video as well as Internet backbone connections. Eutelsat W5 The original Eutelsat W1 satellite was damaged during construction by a malfuncioning fire extinguishing system. During testing, when the factory where it was being built caught fire. The cause of the fire was determi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hughes Europe
Hughes Europe is an operating and sales organisation for Hughes Network Systems, LLC (HUGHES) with its facilities in Germany, Great Britain and Italy. These facilities are mainly used to provide Internet access to organisations and other institutions via satellites and traditional terrestrial connections. Hughes Europe develops, installs, manages and maintains company communications networks. It provides fast broadband internet access and Managed Network Solutions for companies of all sizes across a broad range of industries, including the automobile, retail, energy (oil and gas), financial services, industrial, information technology, telecommunications and lottery sectors. Broadband services and solutions Under the HughesNet name brand, Hughes Europe offers Managed Network Services and Managed Digital Media Solutions. These include: *Terrestrial and satellite-based broadband networks *Hybrid broadband networks *Backup solutions *Broadband internet access *Digital signage * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
OpenSky
OpenSky is a registered trademark of Harris Corporation and is the trade name for a wireless communication system, invented by M/A-COM Inc., that is now a division of Harris RF Communications. OpenSky technology applies voice over IP transport to radio communications applications in a unique architecture. In the mid-1990s Federal Express invited proposals for a data and voice network to the vehicular level. As the world's largest shipper, FedEx was a key opportunity, and major market players presented their existing product offerings over some time. M/A-COM presented their concept, and won the business. They delivered a standards-based infrastructure that attempted to leverage open systems to the largest degree possible, while adapting specific input/output to meet the customer's exact requirements. OpenSky received the direct attention of Tyco Electronics when they acquired it along with AMP Inc. Tyco Electronics funded the company to acquire the EDACS radio system team and p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digiturk
Digiturk is a Turkish satellite television provider founded in 1999, with services starting in mid-2000. They provide both national television channels and their own channels, national radio, and music streams of different genres. Digiturk is also the current owner of the broadcasting rights of Turkish Super League. In addition to Turkey, Digiturk offers its television service throughout Europe, mainly for members of the Turkish diaspora. Reportedly, they have over 3.5 million subscribers worldwide. Digiturk's service is provided from Eutelsat 7A, positioned some 35 degrees west of the more traditionally used Türksat, and is encrypted via Cryptoworks and Irdeto conditional access systems. Digiturk channels include national channels, news channels, film and series channels, sports channels, children channels, music channels, documentary channels, entertainment and lifestyle channels and other international channels. The Qatar-based beIN Media Group acquired Digiturk on 13 July 20 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eurovision Song Contest
The Eurovision Song Contest (), sometimes abbreviated to ESC and often known simply as Eurovision, is an international songwriting competition organised annually by the European Broadcasting Union (EBU), featuring participants representing primarily European countries. Each participating country submits an original song to be performed on live television and radio, transmitted to national broadcasters via the EBU's Eurovision and Euroradio networks, with competing countries then casting votes for the other countries' songs to determine a winner. Based on the Sanremo Music Festival held in Italy since 1951, Eurovision has been held annually since 1956 (apart from ), making it the longest-running annual international televised music competition and one of the world's longest-running television programmes. Active members of the EBU, as well as invited associate members, are eligible to compete, and 52 countries have participated at least once. Each participating broadcaster se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
European Broadcasting Union
The European Broadcasting Union (EBU; french: Union européenne de radio-télévision, links=no, UER) is an alliance of Public broadcasting, public service media organisations whose countries are within the European Broadcasting Area or who are member states of the Council of Europe, members of the Council of Europe. , it is made up of 112 member organizations from 54 countries, and 31 associate members from a further 20 countries. It was established in 1950, and had its administrative headquarters in Geneva and technical office in Brussels. The EBU owns and operates the Eurovision (network), Eurovision and Euroradio telecommunications networks on which major television and radio broadcasts are distributed live to its members. It also operates the daily Eurovision news exchange in which members share breaking news footage. In 2017, the EBU launched the Eurovision Social Newswire, an eyewitness and video verification service. Led by Head of Social Newsgathering, Derek Bowler, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lithium-ion Battery
A lithium-ion or Li-ion battery is a type of rechargeable battery which uses the reversible reduction of lithium ions to store energy. It is the predominant battery type used in portable consumer electronics and electric vehicles. It also sees significant use for grid-scale energy storage and military and aerospace applications. Compared to other rechargeable battery technologies, Li-ion batteries have high energy densities, low self-discharge, and no memory effect (although a small memory effect reported in LFP cells has been traced to poorly made cells). Chemistry, performance, cost and safety characteristics vary across types of lithium-ion batteries. Most commercial Li-ion cells use intercalation compounds as the active materials. The anode or negative electrode is usually graphite, although silicon-carbon is also being increasingly used. Cells can be manufactured to prioritize either energy or power density. Handheld electronics mostly use lithium polymer batteries ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multiplexing
In telecommunications and computer networking, multiplexing (sometimes contracted to muxing) is a method by which multiple analog or digital signals are combined into one signal over a shared medium. The aim is to share a scarce resource - a physical transmission medium. For example, in telecommunications, several telephone calls may be carried using one wire. Multiplexing originated in telegraphy in the 1870s, and is now widely applied in communications. In telephony, George Owen Squier is credited with the development of telephone carrier multiplexing in 1910. The multiplexed signal is transmitted over a communication channel such as a cable. The multiplexing divides the capacity of the communication channel into several logical channels, one for each message signal or data stream to be transferred. A reverse process, known as demultiplexing, extracts the original channels on the receiver end. A device that performs the multiplexing is called a multiplexer (MUX), and a dev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skyplex
Skyplex is a proposed and planned entertainment complex, It would be located on a lot at the northeast corner of Sand Lake Road and International Drive in Orlando, Florida. Plans for the complex include a tower which would feature the world's tallest roller coaster, Skyscraper, and the world's largest Perkins Restaurant and Bakery. In January 2019 the project was expected to cost and include space for a future hotel. The complex was originally planned to open in 2020. However, , construction on the project has not begun, and it is uncertain if the complex would be built. History The project began in 2012 with a planned budget of US$500,000,000. After several successful land negotiations conducted under the name WF IDrive Realty, development of Skyplex and the roller coaster began. The complex was designed by Helman Hurley Charvat Peacock/Architects Inc. In May 2014, a website seeking investors was published. In 2015, Wallack Holdings LLC spent to develop a retail comple ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Satellite Bus
A satellite bus (or spacecraft bus) is the main body and structural component of a satellite or spacecraft, in which the payload and all scientific instruments are held. Bus-derived satellites are opposed to specially produced satellites. Bus-derived satellites are usually customized to customer requirements, for example with specialized sensors or transponders, in order to achieve a specific mission. They are commonly used for geosynchronous satellites, particularly communications satellites, but are also used in spacecraft which occupy lower orbits, occasionally including low Earth orbit missions. Examples Some satellite bus examples include: * Boeing DS&S 702 * Lockheed Martin Space Systems A2100 * Alphabus * INVAP ARSAT-3K * Airbus D&S Eurostar * ISRO's I-1K, I-2K, I-3K, I-4K, I-6K, and Indian Mini Satellite bus * NASA Ames MCSB * SSL 1300 * Orbital ATK GEOStar * Mitsubishi Electric DS2000 * Spacecraft bus of the James Webb Space Telescope * SPUTNIX TabletSat * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio
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, spacecraf ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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