What is defined as an area, excluding sea...

What is defined as an area, excluding sea...

Question 1 of 27070U6bJHnlqh6rwCuH9A3U0

What is defined as an area, excluding sea areas A1 and A2, within the coverage of an Inmarsat geostationary satellite in which continuous alerting is available?

Question 1 of 27070

Q

What is defined as an area, excluding sea areas A1 and A2, within the coverage of an Inmarsat geostationary satellite in which continuous alerting is available?

🔍 Key Concepts

• GMDSS sea areas (A1, A2, A3, A4) and how each is defined • The role of Inmarsat geostationary satellites in providing continuous alerting • Which sea areas are outside VHF/MF coverage but still have satellite coverage

💭 Think About

• First, recall the formal GMDSS definition of each sea area (A1 through A4); which one explicitly mentions "within the coverage of an Inmarsat geostationary satellite"? • Why does the question say "excluding sea areas A1 and A2"? What type of communication/alerting equipment mainly defines A1 and A2? • Think about where Inmarsat geostationary satellites can and cannot provide coverage on the globe. Which labeled sea area corresponds to that coverage zone?

✅ Before You Answer

• Check the official definition of each GMDSS sea area (A1–A4) in SOLAS/ITU references. • Confirm which sea area is defined by Inmarsat satellite coverage rather than VHF DSC (Digital Selective Calling) or MF DSC. • Make sure you do NOT pick an answer that is just a list of satellite regions or a generic description like coastal/inland waters, but the specific GMDSS sea area name.