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  2. Global Maritime Distress and Safety System - Wikipedia

    en.wikipedia.org/wiki/Global_Maritime_Distress...

    GMDSS consists of several systems which are intended to perform the following functions: alerting (including position determination of the ship in distress) ships in the vicinity and ashore authorities, [1]: 1 search and rescue coordination, locating (homing), maritime safety information broadcasts, general communications, and bridge-to-bridge ...

  3. Inmarsat-C - Wikipedia

    en.wikipedia.org/wiki/Inmarsat-C

    The disadvantage is that voice communication is not possible with Inmarsat-C. [1] The service is approved for use under the Global Maritime Distress and Safety System , meets the requirements for Ship Security Alert Systems (SSAS) defined by the International Maritime Organization (IMO) and is the most widely used service in fishing Vessel ...

  4. Marine VHF radio - Wikipedia

    en.wikipedia.org/wiki/Marine_VHF_radio

    Marine VHF radio is a worldwide system of two way radio transceivers on ships and watercraft used for bidirectional voice communication from ship-to-ship, ship-to-shore (for example with harbormasters), and in certain circumstances ship-to-aircraft.

  5. Search and rescue transponder - Wikipedia

    en.wikipedia.org/wiki/Search_and_rescue_transponder

    Shipboard Global Maritime Distress Safety System (GMDSS) include one or more search and rescue locating devices. The radar-SART may be triggered by any X-band radar within a range of approximately 8 nautical miles (15 kilometers).

  6. Emergency position-indicating radiobeacon - Wikipedia

    en.wikipedia.org/wiki/Emergency_position...

    Overview diagram of COSPAS-SARSAT communication system used to detect and locate ELTs, EPIRBs, and PLBs First generation EPIRB emergency locator beacons. An emergency position-indicating radiobeacon (EPIRB) is a type of emergency locator beacon for commercial and recreational boats, a portable, battery-powered radio transmitter used in emergencies to locate boaters in distress and in need of ...

  7. International Mobile Satellite Organization - Wikipedia

    en.wikipedia.org/wiki/International_Mobile...

    International Mobile Satellite Organization (IMSO) is the oversight body of the satellite communications elements of the Global Maritime Distress and Safety System (GMDSS) established by the IMO designed to provide a worldwide system for automated emergency signal communication for ships at sea.

  8. Seafarer's professions and ranks - Wikipedia

    en.wikipedia.org/wiki/Seafarer's_professions_and...

    Ship officers may be licensed by the Federal Communications Commission as GMDSS operators and electrical officers as GMDSS maintainers. Morse code has not been used on French ships since 1997 [6] and on U.S. ones since 1999 [7] However, an FCC certificate for radiotelegraphy may still be obtained.

  9. AIS-SART - Wikipedia

    en.wikipedia.org/wiki/AIS-SART

    Shipboard Global Maritime Distress Safety System (GMDSS) installations include one or more search and rescue locating devices. These devices may be either an AIS-SART (AIS Search and Rescue Transmitter) (from January 1, 2010), or a radar-SART (Search and Rescue Transponder).