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Retrieved Hidden categories: Articles with a promotional tone from October All articles with a promotional tone Articles needing additional references from October All articles needing additional references Official website different in Wikidata and Wikipedia. Namespaces Article Talk. Views Read Edit View history. LEO systems are non-geostationary systems, which means that, unlike the geostationary satellites which comprise most of the existing communications satellite network, they move in relation to a fixed point on the Earth's surface.
The Little LEO contenders hope to gain a competitive edge by offering fast and inexpensive services, and by getting a foothold in the market well ahead of their big brothers. Some systems are already partially on-line, but most are due to start offering services between and The majority of ventures intend to use the satellites as either 'bent pipe' systems, or store-and-forward systems.
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The bent pipe system relays messages directly between users, while the store-and-forward approach means that a satellite receives information from a ground station, stores it in on-board memory, continues on its orbit, and releases the information to the next appropriate ground station, or user. Users will be able to access the new Little LEO systems using small hand-held messaging units incorporating a low-power omni-directional antenna and weighing less than half a kilogram.
So much for the technical spec. The principle difference between the proposed offerings of Little LEO operators and other Mobile Satellite Systems MSS is that they concentrate on providing data services, rather than handling real-time voice traffic. The kinds of services you can expect from a Little LEO provider are messaging including e-mail and two-way paging , limited Internet access, and fax. The systems themselves are less technically ambitious that their bigger counterparts.
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