Furuno FELCOM 12 manual Inmarsat system satellites

The Inmarsat-C system consists of the Operation Control Center (OCC), Satellite Control Centers (SCC), Network Coordination Sta- tions (NCS), Land Earth Stations (LES) and Mobile Earth Stations (MES). The OCC, located at Inmarsat’s London headquarters, coor- dinates a wide range of activities in the Inmarsat system, including commissioning of mobile earth stations.

The Inmarsat-C system divides the world into four regions and each region is covered by its own satellite.

Table 1 Inmarsat system satellites

Region	Satellite	Satellite Position
AOR-West	Inmarsat-2, F4	54.0°W
AOR-East	Inmarsat-2, F2	15.5°W
IOR	Inmarsat-2, F1	64.5°E
POR	Inmarsat-2, F3	178.0°E

In each region there is one NCS and several LESs. The NCS keeps track of all Inmarsat-C transceivers in its region and broadcasts in- formation such as navigational warnings, weather reports and news. The LES provides the link between the MES and the terrestrial tele- communications networks via satellite.

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