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Polar Comms - Iridium Backup

Polar Code Chapter 10 communications - Iridium (GMDSS A4) mandatory for Polar Code voyages beyond INMARSAT coverage.

PolarCommsIridium
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Formula, assumptions, and limits

GMDSS=f(lat,Polar)\text{GMDSS} = f(\text{lat}, \text{Polar})
SymbolMeaningUnit
A1/A2/A3/A4A1/A2/A3/A4GMDSS sea areas

Source: Polar Code Ch. 10

In short

Polar Code Chapter 10 communications - Iridium (GMDSS A4) mandatory for Polar Code voyages beyond INMARSAT coverage.

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