Information AboutVsat |
| CATEGORIES ABOUT VERY SMALL APERTURE TERMINAL | |
| telecommunications equipment | |
| satellite internet | |
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Schlumberger Oilfield Research co-developed the world's first VSATs with Hughes Aerospace in 1985, to provide man-portable network connectivity for oil field drilling and exploration units. VSAT's are still used at well sites today to transmit real-time data back for processing. VSAT is also used by local car dealerships affiliated with manufacturers such as Ford and General Motors , for transmitting and receiving sales figures & orders, as well as for receiving internal communications, parts ordering, service bulletins, and interactive Distance Learning training courses from the manufacturer. The FordStar network, used by Ford and its local dealers, is an example of this. Wal-Mart stores across the USA also use store-installed VSAT systems for communications (as a backup, normally Leased Line s are used) to Wal-Mart's corporate headquarters for sending information on inventory and sales transactions. VSAT technology is also used for 2-way satellite internet providers such as DirecWay and StarBand in the US, and Amariska , Bluestream & Technologie Satelitarne in Europe, among others. (Direcway is also available in Europe, South America, India and China.) These services are used across the world as a means of delivering broadband internet access to sites which cannot get ADSL or Cable Internet access, which are usually remote or rural locations. Nearly all VSAT systems are now based on IP, with a very broad spectrum of applications. At December 2004, the total number of VSAT terminals ordered stood at over 1 million with nearly 650,000 sites in service. Annual VSAT service revenues were $3.88 billion, with TDMA & DAMA hardware revenues at $746.9 million (source: www.comsys.co.uk).' TOPOLOGIES OF VSAT Most VSAT networks are usually configured in one of these Topologies :
Star topology services like Direcway and others can be used to provide broadband Wide Area Network s, as well as to provide Broadband Internet access. Applications of this include Intranet networking for Front and Back Office applications, managed Store And Forward solutions such as digital signage, and interactive distance learning. SEE ALSO EXTERNAL LINKS
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