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IPSTAR
THAICOM 4, also known as IPSTAR 1, is a high throughput satellite built by Space Systems/Loral (SS/L) for Thaicom Public Company Limited. It was launched on August 11, 2005, from the European Space Agency's spaceport in French Guiana on board the Ariane rocket. The satellite had a launch mass of 6486 kilograms and is from SS/L's LS-1300 series of spacecraft. IPSTAR 1 is the world's first High Throughput Satellite capable of providing service to up to two million broadband users or nearly 30 million mobile phone subscribers in the Asia Pacific region. Compared to the one or two gigabit per second (Gbit/s) capacity of a typical satellite designed for Fixed Satellite Services (FSS), IPSTAR was designed to provide broadband Internet service. Its 45 Gbit/s of capacity had never been achieved on a satellite before, enabling IPSTAR to provide up to 6 Mbit/s user download and up to 4 Mbit/s upload speeds for a variety of applications and services. Technology The satelli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High Throughput Satellite
A high-throughput satellite (HTS) is a communications satellite which provides more throughput than a classic fixed service satellite (FSS). An HTS provides at least twice, though usually 20 times or more, throughput for the same amount of allocated orbital spectrum, thus significantly reducing cost-per-bit. ViaSat-1 and EchoStar XVII (also known as Jupiter-1) provide more than 100 Gbit/s of capacity, which is more than 100 times the capacity offered by a conventional FSS satellite. When it was launched in October 2011, ViaSat-1 had more capacity (140 Gbit/s) than all other commercial communications satellites over North America combined. Overview The significant increase in capacity is achieved by a high level frequency re-use and spot beam technology which enables frequency re-use across multiple narrowly focused spot beams (usually in the order of hundreds of kilometers), as in cellular networks, which both are defining technical features of high-throughput satellites. By ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space Systems/Loral
SSL, formerly Space Systems/Loral, LLC (SS/L), of Palo Alto, California, is a wholly owned manufacturing subsidiary of Maxar Technologies. SSL designs and builds satellites and space systems for a wide variety of government and commercial customers. Its products include high-powered direct-to-home broadcast satellites, commercial weather satellites, digital audio radio satellites, Earth observation satellites and spot-beam satellites for data networking applications. History The company was founded as the Western Development Laboratories (WDL) of Philco in 1957, which became Philco-Ford in 1966. The Space Systems Division was made a stand-alone Division of Aeronutronic/Ford Aerospace and was acquired by Loral Corp. in 1990 for $715 million from Ford Motor Company, and renamed Space Systems/Loral. All other divisions of Ford Aerospace including Western Development Labs located in San Jose, California, San Jose were also acquired by Loral at that time. In 2012 Space Systems/Lo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thaicom (company)
Thaicom Public Company Limited is a Thai satellite operator and provider of satellite and telecommunication services since 1991. The company operates a fleet of four satellites covering Asia, Oceania, and Africa. Thaicom is a subsidiary of Intouch Holdings PCL, Thailand's biggest telecommunications conglomerate. History The company's satellite project was named Thaicom by King Bhumibol. Thailand-based Shinawatra Computer and Communications Co. Ltd. (later Intouch Holdings PLC) signed a US$100 million contract with Hughes Space and Communications Company Ltd. in 1991 to build Thailand's first communications satellite. Thaicom 1 was launched on 18 December 1993, carrying 12 C-band transponders and covering an area from Japan to Singapore. The company became a listed company on the Stock Exchange of Thailand on 18 January 1994, and is officially traded under the symbol THCOM. Since its establishment, the company has expanded its business activities to include Internet and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French Guiana
French Guiana, or Guyane in French, is an Overseas departments and regions of France, overseas department and region of France located on the northern coast of South America in the Guianas and the West Indies. Bordered by Suriname to the west and Brazil to the east and south, French Guiana covers a total area of and a land area of . As of January 2025, it is home to 292,354 people. French Guiana is the second-largest Regions of France, region in France, being approximately one-seventh the size of metropolitan France, European France, and the largest Special member state territories and the European Union, outermost region within the European Union. It has a very low population density, with only . About half of its residents live in its capital, Cayenne. Approximately 98.9% of French Guiana is covered by forests, much of it Old-growth forest, primeval Tropical rainforest, rainforest. Guiana Amazonian Park, the largest national park in the European Union covers 41% of French ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ariane (rocket)
Ariane is a series of European civilian expendable launch vehicles for space launch use. The name comes from the French spelling of the mythological character Ariadne. France first proposed the Ariane project and it was officially agreed upon at the end of 1973 after discussions between France, Germany and the UK. The project was Western Europe's second attempt at developing its own launcher following the unsuccessful Europa project. The Ariane project was code-named L3S (the French abbreviation for third-generation substitution launcher). The European Space Agency (ESA) charged Aérospatiale (whose former assets now form Airbus) with the development of all Ariane launchers and of the testing facilities, while Arianespace handled production, operations and marketing after its creation in 1980. Arianespace launches Ariane rockets from the Guiana Space Centre at Kourou in French Guiana. As a result of the merger in 2000 that founded Airbus, the new corporation's space branch and su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LS-1300
The SSL 1300, previously the LS-1300 and the FS-1300, is a satellite bus produced by Maxar Technologies. Total broadcast power ranges from 5 to 25 kW, and the platform can accommodate from 12 to 150 transponders. The SSL 1300 is a modular platform and Maxar Technologies no longer reports designators for sub-versions, such as: 1300E, 1300HL, 1300S, 1300X. First available in the late 1980s, the SSL 1300 platform underwent revision multiple times over its design life, all the while remaining a popular communications platform. The earliest models provided 5,000 RF watts of transmitter power, weighed 5,500 kg, and required a 4-meter diameter launch fairing. Newer models provide double that, approximately 10,000 RF watts of transmitter power, weigh 6,700 kg, and require a 5-meter diameter launch fairing. SSL stated that they would use electric propulsion for North-South station keeping for the first time on the MBSat in 2004. The subsystem was supplied by International S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Earth Station
A ground station, Earth station, or Earth terminal is a terrestrial radio station designed for extraplanetary telecommunication with spacecraft (constituting part of the ground segment of the spacecraft system), or reception of radio waves from astronomical radio sources. Ground stations may be located either on the surface of the Earth, or in its atmosphere. Earth stations communicate with spacecraft by transmitting and receiving radio waves in the super high frequency (SHF) or extremely high frequency (EHF) bands (e.g. microwaves). When a ground station successfully transmits radio waves to a spacecraft (or vice versa), it establishes a telecommunications link. A principal telecommunications device of the ground station is the parabolic antenna. Ground stations may have either a fixed or itinerant position. Article 1 § III of the International Telecommunication Union (ITU) Radio Regulations describes various types of stationary and mobile ground stations, and their inter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thaicom
Thaicom Public Company Limited is a Thai satellite operator and provider of satellite and telecommunication services since 1991. The company operates a fleet of four satellites covering Asia, Oceania, and Africa. Thaicom is a subsidiary of Intouch Holdings, Intouch Holdings PCL, Thailand's biggest telecommunications conglomerate. History The company's satellite project was named Thaicom by King Bhumibol. Thailand-based Shin Corporation, Shinawatra Computer and Communications Co. Ltd. (later Intouch Holdings PLC) signed a US$100 million contract with Hughes Aircraft, Hughes Space and Communications Company Ltd. in 1991 to build Thailand's first communications satellite. Thaicom 1 was launched on 18 December 1993, carrying 12 C band (IEEE), C-band transponders and covering an area from Japan to Singapore. The company became a listed company on the Stock Exchange of Thailand on 18 January 1994, and is officially traded under the symbol THCOM. Since its establishment, the compa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thaicom 5
Thaicom 5 was a geostationary communications satellite operated by Thaicom. It was used to provide communications services to Asia, Africa, Middle East, Americas, Europe and Australia. Overview Thaicom 5 was constructed by Alcatel Alenia Space, and is based on the Spacebus 3000A satellite bus, with a configuration identical to the Thaicom 3 satellite which it replaced. It was originally ordered as Thaicom 4, but sold to Agrani as Agrani 2 before completion. It was completed in 1997, and stored until June 2005 when it was cancelled and sold back to Thaicom. It was equipped with 25 G/H band (IEEE C band) and 14 J band (IEEE Ku band) transponders, and at launch it had a mass of , with an expected operational lifespan of 12 years. Thaicom 5 began experiencing technical difficulties in December 2019, causing Thaicom to duplicate some channels, including Korean Central Television, to neighboring satellites. Launch The satellite was launched on an Ariane 5ECA carrier rocket, cont ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thaicom 6
THAICOM 6 () is a Thai satellite of the Thaicom series, operated by Thaicom Public Company Limited, a subsidiary of INTOUCH headquartered in Bangkok, Thailand. THAICOM 6 is colocated with Thaicom 5 at 78.5 degrees East, in geostationary orbit. The total cost for the satellite is . Overview THAICOM 6 is a 3-axis stabilized spacecraft, carrying 18 active C-band transponders and 8 active Ku-band transponders. The Ku-band transponders are both addressed as well as beam-switched to broadband. THAICOM 6 provides communication service to Southeast Asia, Africa and Madagascar with its primary role being DTH service for Thailand. Launch The spacecraft was launched on 6 January 2014, by SpaceX on a Falcon 9 v1.1 launch vehicle. The payload was delivered by SpaceX to a -apogee supersynchronous elliptical transfer orbit that will later be reduced by the satellite builder Orbital Sciences Corporation to an approximately circular geostationary orbit. The supersynchronous transfer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thaicom 8
THAICOM 8 () is a Thai satellite of the THAICOM series, operated by Thaicom Public Limited Company, a subsidiary of INTOUCH, and is considered to be the 8th THAICOM satellite headquartered in Bangkok, Thailand. Overview Manufactured by Orbital ATK, the THAICOM 8 communications satellite will serve Thailand, India, and Africa from the 78.5° East geostationary location. It is equipped with 24 active Ku-band transponders for sending high-definition television signals through the satellite to residential dwellings. Launch THAICOM 8 was approved for launch into orbit on 18 March 2014. It was launched at the Cape Canaveral SLC-40 in Florida on 27 May 2016, by SpaceX. The first stage of the Falcon 9 used to launch THAICOM 8 successfully landed on ASDS - Of Course I Still Love You. It was the fourth successful landing of a Falcon 9 Full Thrust. Reuse of the Falcon 9 First Stage The B1023 first stage was later converted into a Falcon Heavy side booster, which performed a stat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Communications Satellites In Geostationary Orbit
Communication is commonly defined as the transmission of information. Its precise definition is disputed and there are disagreements about whether unintentional or failed transmissions are included and whether communication not only transmits meaning but also creates it. Models of communication are simplified overviews of its main components and their interactions. Many models include the idea that a source uses a coding system to express information in the form of a message. The message is sent through a channel to a receiver who has to decode it to understand it. The main field of inquiry investigating communication is called communication studies. A common way to classify communication is by whether information is exchanged between humans, members of other species, or non-living entities such as computers. For human communication, a central contrast is between verbal and non-verbal communication. Verbal communication involves the exchange of messages in linguistic form ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
