GMDSS havområder.

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Presentation transcript:

GMDSS havområder

GMDSS COSPAS (russiske) SARSAT (US/CA/FR) I alt 5 satelliter. NORD-SYD over polerne. Ca. 1000 km over jorden. 406 MHz, position ved doppler. INMARSAT, 4 SATELITTER Geostationære ved ækvator. Ca. 36.000 km. 1,5/1,6 GHz.

EPIRB - Emergency Position-Indicating Radio Beacon EPIRB is used to alert search and rescue services in the event of an emergency. It does this by transmitting a coded message on the 406MHz distress frequency, which is relayed via satellite and earth stations to the nearest rescue coordination centre. Marine EPIRBs work with the COSPAS-SARSAT polar orbiting satellite network which provides true global coverage, and can determine the casualty's position by triangulation to within 3 Nm (doppler) - or just a few metres if fitted with a built-in GPS (Global Positioning System). Most units also have a secondary distress transmitter, which operates on the old 121.5MHz and is used for homing purposes.

RHOTHETA DIRECTION FINDER (NØDSIGNALER)

SART – Search And Rescue Transponder Sender på 9 GHz (3 cm) navigationsradar frekvens

EPIRB - Emergency Position-Indicating Radio Beacon SART – Search And Rescue Transponder

AIS SART Sender sin position (GPS), som registres på AIS modtagere og ECDIS (kortplotter) på 161.975 MHz og 162.025 MHz (VHF) Kan erstatte SART’en