🔍 Key Concepts

• Inmarsat NCS (Network Coordination Station) role in connecting a ship earth station to the right ocean region and network • Purpose of MSI (Maritime Safety Information) and NAVAREA broadcasts over Inmarsat • How signal strength/coverage and distress and safety (SAR) communications affect the choice of network or ocean region

💭 Think About

• Which answer options talk about things that an Inmarsat network actually controls (coverage, safety services, MSI areas) versus things it does NOT control (like commercial email providers or ship‑ship costs)? • How does the ship’s trading area and the NAVAREA it is in influence which Inmarsat ocean region and NCS you need in order to receive safety and weather information? • In a distress or SAR situation, what features of the Inmarsat network become most important for choosing or remaining with a particular NCS?

✅ Before You Answer

• Identify which answers mention MSI / NAVAREA / safety communications that are clearly tied to GMDSS and Inmarsat services. • Eliminate any choices that include items that are not functions of an NCS (for example, commercial email brands or local port‑interference concerns). • Check which options correctly combine coverage/signal strength with distress/SAR and safety information areas (NAVAREAs), since these are key to NCS selection.