This is disturbing as Inmarsat C, launched in 1991 to provide low-cost data communication and GMDSS services, counts an estimated 125,000 maritime terminals.

France Telecom Mobile Satellite Communications upgraded its land earth station in Aussaguel, France to ensure that its Inmarsat-C and Mini-C services are SSAS-compatible. The SSAS heightens ...

Operating on L-band via the Inmarsat fleet of four I-4 satellites, Inmarsat FleetBroadband terminals are equipped with the same GMDSS functionality as Inmarsat C.