Intro to GMDSS

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    The United Kingdom Hydrographic OfficeThe United Kingdom Hydrographic Office

    INTRODUCTION TOINTRODUCTION TO

    GLOBAL MARITIME DISTRESSGLOBAL MARITIME DISTRESS

    & SAFETY SYSTEM (GMDSS)& SAFETY SYSTEM (GMDSS)

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    The United Kingdom Hydrographic OfficeThe United Kingdom Hydrographic Office

    OLD SYSTEMOLD SYSTEM

    All vessels of 1600grt and aboveAll vessels of 1600grt and aboveand all passenger vesselsand all passenger vessels -- morsemorse

    telegraphy on 500 KHztelegraphy on 500 KHz

    All vessels of 300grt and aboveAll vessels of 300grt and above --MF and VHF telephony on 2182 kHzMF and VHF telephony on 2182 kHz

    and 156.8 MHz (Channel 16)and 156.8 MHz (Channel 16)

    Ship to ship alertingShip to ship alerting

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    The United Kingdom Hydrographic OfficeThe United Kingdom Hydrographic Office

    SOLAS V Regulation 4SOLAS V Regulation 4

    (Navigational Warnings)(Navigational Warnings)

    Each Contracting Government shall take all stepsEach Contracting Government shall take all steps

    necessary to ensure that, when intelligence of anynecessary to ensure that, when intelligence of anydangers is received from whatever reliable source, itdangers is received from whatever reliable source, it

    shall be promptly brought to the knowledge of thoseshall be promptly brought to the knowledge of those

    concerned and communicated to other interestedconcerned and communicated to other interestedGovernments*Governments*

    ** Refer to the Guidance on the IMO/IHO WorldRefer to the Guidance on the IMO/IHO World--WideWide

    Navigational Warning Service adopted by theNavigational Warning Service adopted by theOrganization by resolution A.706(17) as amendedOrganization by resolution A.706(17) as amended

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    The United Kingdom Hydrographic OfficeThe United Kingdom Hydrographic Office

    Undertakings By ContractingUndertakings By Contracting

    GovernmentsGovernments(SOLAS IV(SOLAS IV Extract of Regulation 5:Extract of Regulation 5:

    Provision ofProvision ofradiocommunicationradiocommunication services)services)

    Each Contracting Government undertakes toEach Contracting Government undertakes to

    make available, as it deems practical andmake available, as it deems practical and

    necessary, either individually or in conecessary, either individually or in co--operation with other Contractingoperation with other Contracting GovernmentsGovernments ,,

    appropriate shoreappropriate shore--based facilities for spacebased facilities for space

    and terrestrial radiocommunication servicesand terrestrial radiocommunication serviceshaving due regard to the recommendations ofhaving due regard to the recommendations of

    the Organisation.the Organisation.

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    The United Kingdom Hydrographic OfficeThe United Kingdom Hydrographic Office

    99 FunctionalFunctional RequirementsRequirements1.1. Transmission of shipTransmission of ship--toto--shore distress alerts by at leastshore distress alerts by at least

    two separate and independent means, each using atwo separate and independent means, each using adifferent radio communication service;different radio communication service;

    2.2. Reception of shoreReception of shore--toto--ship distress alerts;ship distress alerts;

    3.3. Transmission and reception of shipTransmission and reception of ship--toto--ship distressship distressalerts;alerts;

    4.4. Transmission and reception of search and rescue coTransmission and reception of search and rescue co----ordinating communications;ordinating communications;

    5.5. Transmission and reception of onTransmission and reception of on--scenescene

    communications;communications;6.6. Transmission and reception of signals for locating;Transmission and reception of signals for locating;

    7.7. Transmission and reception of Maritime SafetyTransmission and reception of Maritime SafetyInformation (MSI);Information (MSI);

    8.8. Transmission and reception of general radioTransmission and reception of general radiocommunications to and from shorecommunications to and from shore--based radio systemsbased radio systemsor networks;or networks;

    9.9. Transmission and reception of bridgeTransmission and reception of bridge--toto--bridgebridgecommunications;communications;

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    The United Kingdom Hydrographic OfficeThe United Kingdom Hydrographic Office

    GMDSS IncludesGMDSS Includes

    Distress alerting (via DSC radioDistress alerting (via DSC radioand/or satellite)and/or satellite)

    Locating signals (Locating signals (SARTsSARTs,, EPIRBsEPIRBs))

    Transmission/reception of MSITransmission/reception of MSI

    General communications (ship toGeneral communications (ship to

    ship, ship to shore and SAR coship, ship to shore and SAR co--ordination via DSC radio and/orordination via DSC radio and/or

    satellite)satellite)

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    The United Kingdom Hydrographic OfficeThe United Kingdom Hydrographic Office

    Description of GMDSS Sea AreasDescription of GMDSS Sea Areas

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    as aboveas above406 MHz406 MHzCospasCospas--SarsatSarsat

    HFHFMFMF

    VHFVHF

    North of 70North of 70NNoror

    South of 70South of 70SS

    A 4:A 4: Other areas (i.e.,Other areas (i.e.,beyondbeyond InmarsatInmarsat

    range)range)

    as aboveas above406 MHz406 MHz

    CospasCospas--SarsatSarsat

    as above, plus, 1.5as above, plus, 1.5--1.61.6

    GHz alerting or as A1 andGHz alerting or as A1 and

    A2 plus all HFA2 plus all HF

    frequenciesfrequencies

    HF orHF or

    SatelliteSatellite

    MFMF

    VHFVHF

    7070NN--7070SSA 3A 3 : Within: Within

    geogeo--stationarystationary

    satellite range (i.e.satellite range (i.e.

    InmarsatInmarsat))

    as aboveas above406 MHz406 MHz

    CospasCospas--SarsatSarsat

    as above, plus,as above, plus,

    2187.5 kHz DSC,2187.5 kHz DSC,

    2182 kHz RT,2182 kHz RT,

    2174.5 kHz NBDP,2174.5 kHz NBDP,

    518 kHz NAVTEX518 kHz NAVTEX

    MFMF

    VHFVHF

    about 50about 50--250 n miles250 n milesA 2:A 2: Within range ofWithin range of

    shoreshore--based MFbased MF

    stationsstations

    9 GHz radar9 GHz radar

    transpondertransponder

    (SART); VHF(SART); VHF

    portable radio (Chportable radio (Ch

    16 and one other16 and one other

    frequency)frequency)

    406 MHz406 MHz

    CospasCospas--SarsatSarsat

    or VHF EPIRBor VHF EPIRB

    156.525 MHz (Ch 70) for156.525 MHz (Ch 70) for

    DSCDSC

    oror

    156.8 MHz (Ch16) RT156.8 MHz (Ch16) RT

    VHFVHFDepends on antennaDepends on antenna

    height at shoreheight at shore--basedbased

    VHF station, aboutVHF station, about

    2020--50n miles50n miles

    A1:A1: Within range ofWithin range of

    shoreshore--based VHFbased VHF

    stationsstations

    Survival CraftSurvival CraftEPIRBsEPIRBsFrequenciesFrequenciesRadioRadioDistanceDistanceArea Descript ionArea Descript ion

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    The United Kingdom Hydrographic OfficeThe United Kingdom Hydrographic Office

    Global Maritime distress and Safety System

    Ship inShip indistressdistressDistress alert is normally

    init iated manuallyManual acknowledgement

    Distress alerting ~ ship-to-shore

    Distress alerting ~ shore-to-ship

    Distress alerting ~ ship-to-ship

    SAR co-ordination communications

    Locating signals

    Bridge to Bridge communications

    Area 1

    area within RT coverage of at least one VHF coast radio

    station (~20-30 miles) providing continuous availability

    of digital selective calling (DSC) alerting

    Area 2

    area, excluding area A1, within the RT coverage of at

    least one MF DSC coast radio s tation providing

    continuous availability of alertingarea, excluding areas A1 and A2, within

    the coverage of INMARSAT

    geostationary satellites providing for

    continuous availability of alertingArea 3

    Area 4

    area, excluding areas A1,

    A2 and A3. Basically, in

    very high latitudes, e.g. thepolar regions. Possibly on

    coverage of one HF DSC

    station

    INMARSAT

    Geostationary satellite transmission system

    (global coverage between 70N and 70S)

    Transmitting & Receiving Maritime Safety Information

    Maritime Safety Information- Navigational warnings- Meteorological warnings

    - SAR information

    W W N W S

    Generalradiocommunications

    - medical advice

    - vessel traffic services- ship reporting- public correspondence

    General radiocommunications

    Coast

    earth

    station

    (CES)

    Coast

    earth

    station

    (CES)

    Coast radio

    station(HF, MF, VHF DSC)

    Terrestrial

    communication

    network

    Rescueco-ordination

    centre

    (RCC)

    COSPAS-SARSAT

    Polar orbiting satellite system

    operating globally the dis