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ITU-R Sg.8 Seminar The Global Maritime Distress and Safety System (GMDSS) Eirik Bliksrud Norwegian Post and Telecommunications Authority.

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Presentation on theme: "ITU-R Sg.8 Seminar The Global Maritime Distress and Safety System (GMDSS) Eirik Bliksrud Norwegian Post and Telecommunications Authority."— Presentation transcript:

1 ITU-R Sg.8 Seminar The Global Maritime Distress and Safety System (GMDSS) Eirik Bliksrud Norwegian Post and Telecommunications Authority

2 The (Future) Global Maritime Distress and Safety System Planned in the -70s/-80s to replace morse: Automatic, not manual New technology:digital modulation satellite systems

3 Fulfil 9 functional requirements wherever it is Alert shore and ships Communicate Be located Receive safety information

4 Sea areas A1: VHF - Line of sight A2: MF - Ground wave A3: Inmarsat – GSO A4: HF - Reflections

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6 Radiosystems in the GMDSS VHF, MF and HF:DSC, voice, data Inmarsat:Voice, data, nav.info NAVTEX:Nav. Information COSPAS-SARSAT:EPIRBs

7 Digital Selective Calling (DSC) Call individual or groups of stations Distress, safety, routine calls Contains identity, position and other info 100/1200 b/sTime diversity

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9 WRC-07 Agenda 1.14: Review of the GMDSS Listening watch on ch. 16 Digitalisation of VHF (Appendix 18) Digitalisation of HF New data systems: HF internet

10 New systems in GMDSS? New satellite systems ? IMT-2000 ? Coverage Priority Pouting to RCC Globally implemented On-scene communications

11 GMDSS Not so fancy Not so modern Serves well, saves lives Simple, robust systems/equipment True global compatibility Still not fully implemented Changes are slow to implement


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