Disaster Recovery Facility. (ie. AMSA backup facility)
Operating method in which transmission is possible simultaneously in both directions of a telecommunication channel.
Electronic Chart Display and Information System. A computer–based navigation information system that complies with IMO regulations.
Extra High Frequency. (30 to 300 GHz)
Enhanced Group Calling (EGC)
Emergency Position Indicating Radio Beacon.
A frequency–modulated mode of emission using digital information for automatic reception, without the use of a modulating sub–carrier.
A frequency–modulated mode of emission using analogue telephony (i.e. voice).
Forward Error Correction. An error–tolerant broadcast mode for NBDP, where the sending station transmits to an unlimited number of receiving stations.
Provides global voice, fax and high–speed data communications at speeds up to 128 kb/s via Inmarsat. It is suitable for a wide range of vessels, from deep–sea ships to offshore support craft. Provides full support for GMDSS, including features such as emergency call prioritization, as stipulated by IMO Resolution A.888 (21).