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I-4 satellite

The Inmarsat-4 satellites, or I-4 satellites are a satellite constellation operated by Inmarsat. They provide the Inmarsat BGAN, FleetBroadband, and SwiftBroadband communications networks. They operate on the L band everywhere on Earth, except in polar regions.

Data services
Both streaming and background data service is provided, where streaming allocates a fixed guaranteed bandwidth to a user, and background uses the excess bandwidth available to a satellite to eventually transmit data.{{cite journal|title=Real-time, near global, low earth orbit communications using geostationary INMARSAT BGAN system as a relay |author1=Christian Lenz |author2=Chris McCormick |author3=Rob Goldsmith |author4=Eyal Trachtman == See also ==
Source: Wikipedia ↗
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