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.

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.

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 ...