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Mobile-satellite Service
Mobile-satellite service (MSS, or mobile-satellite radiocommunication service) is – according to Article 1.25 of the International Telecommunication Union's Radio Regulations – "A radiocommunication service * between mobile earth stations and one or more space stations, or between space stations used by this service; or * between mobile earth stations by means of one or more space stations. This service may also include feeder links necessary for its operation." Details Most commercial voice and some data mobile satellite services are provided by systems operating in the L-band by Iridium, Inmarsat, Globalstar and Thuraya. The L-band spectrum allocated for MSS is between 1.5 and 2.5 GHz, with the upper portion often referred to as the S-band. Constellations of low earth orbiting (LEO) satellites are used by Iridium (66 satellites) and Globalstar (48 satellites). Inmarsat and Thuraya currently use 4 (i4) and 2 geostationary satellites respectively, their L-band services ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orbcomm
ORBCOMM is an American company that offers industrial IoT solutions designed to track, monitor, and control fixed and mobile assets in markets including transportation, heavy equipment, maritime, oil and gas, utilities and government. The company provides hardware devices, modems, web applications, and data services delivered over multiple satellites and cellular networks. As of June 30, 2021, ORBCOMM has more than 2.3 million billable subscriber communicators, serving original equipment manufacturers (OEMs) such as Caterpillar Inc., Doosan Infracore America, Hitachi Construction Machinery Co., Ltd., John Deere, Komatsu Limited, and Volvo Construction Equipment, as well as other customers such as J. B. Hunt, C&S Wholesale Grocers, Canadian National Railways, C.R. England, Hub Group, KLLM Transport Services, Marten Transport, Swift Transportation, Target, Tropicana, Tyson Foods, Walmart and Werner Enterprises. ORBCOMM owns and operates a global network of 31 low Earth o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viasat (American Company)
Viasat, Inc. (formerly stylized as ViaSat) is an American communications company based in Carlsbad, California, with additional operations across the United States and worldwide. Viasat is a provider of high-speed satellite broadband services and secure networking systems covering military and commercial markets. History Viasat was co-founded in May 1986 by Mark Dankberg, Mark Miller and Steve Hart. Mark Dankberg became chief executive officer and Mark Miller and Steve Hart became chief technical officers. Viasat received venture capital financing of $300,000 from Southern California Ventures. In December 1996, Viasat had its initial public offering (IPO). In 1999, Viasat reloacted its headquarters to Carlsbad, California. Viasat launched a spin-off company, TrellisWare Technology, in 2000. The self-funded company focuses on developing communications and signal processing systems. The acquisition of the satellite networking business of Scientific-Atlanta for $75 million in ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Telecommunication Union Region
The International Telecommunication Union (ITU), in its International Radio Regulations, divides the world into three ITU regions for the purposes of managing the global radio spectrum. Each region has its own set of frequency allocations, the main reason for defining the regions. Boundaries *Region 1 comprises Europe, Africa, the Commonwealth of Independent States, Mongolia, and the Middle East west of the Persian Gulf, including Iraq. ** The western boundary is defined by Line B and the eastern boundary is defined by Line A, except that all territory of Iran is excluded, and all territory of Armenia, Azerbaijan, Georgia, Kazakhstan, Mongolia, Uzbekistan, Kyrgyzstan, Russia, Tajikistan, Turkmenistan, Turkey and Ukraine and the area to the north of Russia which lies between lines A and C is included. *Region 2 covers the Americas including Greenland, and some of the eastern Pacific Islands. ** The eastern boundary is defined by Line B and the western boundary is defined by Line C. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frequency Allocation
Frequency allocation (or spectrum allocation) is the part of spectrum management dealing with the designation and regulation of the electromagnetic spectrum into frequency bands, normally done by governments in most countries. Because radio propagation does not stop at national boundaries, governments have sought to harmonise the allocation of RF bands and their standardization. ITU definition The International Telecommunication Union defines frequency allocation as being of "a given frequency band for the purpose of its use by one or more terrestrial or space radiocommunication services or the radio astronomy service under specified conditions".ITU Radio Regulations, Section IV. Radio Stations and Systems – Article 1.16, definition: allocation (of a frequency band). ''Frequency allocation'' is also a special term, used in national frequency administration. Other terms are: Bodies Several bodies set standards for frequency allocation, including: * International Telecomm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeronautical Mobile-satellite Service
Aeronautics is the science or art involved with the study, design, and manufacturing of air flight-capable machines, and the techniques of operating aircraft and rockets within the atmosphere. While the term originally referred solely to ''operating'' the aircraft, it has since been expanded to include technology, business, and other aspects related to aircraft. The term "aviation" is sometimes used interchangeably with aeronautics, although "aeronautics" includes lighter-than-air craft such as airships, and includes ballistic vehicles while "aviation" technically does not. A significant part of aeronautical science is a branch of dynamics called aerodynamics, which deals with the motion of air and the way that it interacts with objects in motion, such as an aircraft. History Early ideas Attempts to fly without any real aeronautical understanding have been made from the earliest times, typically by constructing wings and jumping from a tower with crippling or lethal res ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maritime Mobile-satellite Service
Maritime mobile-satellite service (MMSS, or maritime mobile-satellite radiocommunication service) is – according to Article 1.29 of the International Telecommunication Union's Radio Regulations (RR) – "A mobile-satellite service in which mobile earth stations are located on board ships; survival craft stations and emergency position-indicating radiobeacon stations may also participate in this service", in addition to serving as navigation systems. Classification This radiocommunication service is classified in accordance with ''ITU Radio Regulations'' (article 1) as follows: Mobile service * Maritime mobile service (article 1.28) **Maritime mobile-satellite service **Port operations service (article 1.30) **Ship movement service (article 1.31) 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Land Mobile-satellite Service
Land mobile-satellite service (short: LMSS; also: Land mobile-satellite radiocommunication service') is – according to ''Article 1.27'' of the International Telecommunication Union's (ITU) Radio Regulations (RR) – defined as ''«A mobile-satellite service in which mobile earth stations are located on land.»'' ;See also: Classification Variations of this radiocommunication service in line to the ITU Radio Regulations article 1 are as follows : Mobile service (article 1.24) *Mobile-satellite service Mobile-satellite service (MSS, or mobile-satellite radiocommunication service) is – according to Article 1.25 of the International Telecommunication Union's Radio Regulations – "A radiocommunication service * between mobile earth stations and ... (article 1.25) **Land mobile-satellite service (article 1.27) Frequency allocation The allocation of radio frequencies is provided according to ''Article 5'' of the ITU Radio Regulations (edition 2012).''ITU Radio Regulations, CH ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mobile Service
Mobile may refer to: Places * Mobile, Alabama, a U.S. port city * Mobile County, Alabama * Mobile, Arizona, a small town near Phoenix, U.S. * Mobile, Newfoundland and Labrador Arts, entertainment, and media Music Groups and labels * Mobile (band), a Canadian rock band * Mobiles (band), a 1980s British band Other uses in music * ''Mobile'' (album), a 1999 album by Brazilian Paulinho Moska * "Mobile" (song), a 2003 song by Avril Lavigne from ''Let Go'' * "Mobile", a song by Gentle Giant from the album '' Free Hand'' Other uses in arts, entertainment, and media * Mobile (sculpture), a kinetic sculpture constructed to take advantage of the principle of equilibrium * ''Mobile'' (TV series), a British ITV drama * "Mobile", a short story by J. G. Ballard, later renamed " Venus Smiles" * Mobile, a feature of the game ''GunBound'' * '' Mobile Magazine'', a publication on portable electronics Military and law enforcement * '' Garde Mobile'', historic French military unit * Mob ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vizada
Vizada was a Norwegian firm and later subsidiary brand of EADS and Marlink providing satellite communications services. It operated stations that connected satellite communications to terrestrial telecommunications and IP networks. Vizada's services covered maritime, land, and aeronautical services. In 2011, the Vizada Group was acquired by EADS and integrated as a subsidiary of Astrium. History Vizada was formed in 2007 when private equity firm Apax Partners acquired France Telecom Mobile Satellite Communications (FTMSC - a division of France Telecom) and Telenor Satellite Services (a division of Telenor) and merged their operations. Apax sold Vizada to EADS for 673 million euros in 2011. EADS would go on to merge Vizada with EADS Astrium, its space subsidiary. While operative as a firm, Vizada acquired and reorganized several global telecommunications entities including FTMSC and Telenor Satellite Services, as well as vertically-specialized companies such as Sait Communic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telespazio
Telespazio Spa is a European spaceflight services company founded in 1961. It is a joint venture owned by Leonardo (67%) and Thales Group (33%) headquartered in Rome. Telespazio provides services that include the design and development of space systems, the management of launch services and in-orbit satellite control, Earth observation services, integrated communications, satellite navigation and localization and scientific programmes. The company manages space infrastructure, such as the Fucino Space Centre - and is involved in programmes including Galileo, EGNOS, Copernicus, COSMO-SkyMed, SICRAL and Göktürk. Telespazio operates in France as Telespazio France; in Germany as Telespazio Germany, GAF and Spaceopal; in the United Kingdom as Telespazio UK; in Spain as Telespazio Ibérica; and in Romania as Rartel. Telespazio operates in South America through Telespazio Brasil and Telespazio Argentina. In Italy, the company is also present through e-GEOS. History On 18 Oct ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Globalsat Group
Globalsat Group is a consortium of companies providing satellite communication services worldwide with headquarters located in the United States. Origins Globalsat Group was founded by J. Alberto Palacios in 1999. Palacios is also the active Executive Chairman of this multi-company entity. Satellite services Most products and services provided by the consortium are in the field of mission-critical satellite-based communications including voice, Internet, and Machine-to-Machine (M2M) with emphasis on L band mobile satellite service (MSS) through the Iridium, Inmarsat, Globalstar and other satellite constellations. Fixed-satellite service (FSS) / VSAT and system integration are also provided in some markets, as well as Inmarsat's Ka band mobile service known as Global Express (GX). One of the group's largest projects as of 2022 involves a utility company in Brazil which uses mixed L-band and terrestrial cellular for redundant high availability mobile push-to-talk communicati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
