🔍 Key Concepts

• LRIT (Long-Range Identification and Tracking) is a separate system from AIS, SSAS, and standard Inmarsat-C GMDSS messaging • Understand what equipment and terminals are actually used to transmit LRIT data on a SOLAS ship • Know the difference between safety/traffic systems (e.g., AIS, GMDSS Inmarsat-C) and security systems (e.g., SSAS)

💭 Think About

• Which piece of equipment or console on a typical IMO/SOLAS ship is normally associated with LRIT reporting and polling by the Administration? • Look at each option and ask: does this device primarily relate to AIS broadcasts, SSAS alerts, basic satellite power, or routine Inmarsat-C operation—and which of those carries LRIT? • Which choice involves checking the normal satellite communications terminal that shares functionality with LRIT reporting rather than a separate navigation or security-specific unit?

✅ Before You Answer

• Identify which of the listed units is normally used for LRIT communication (often via an Inmarsat-C or similar terminal under GMDSS equipment) • Confirm that AIS (Automatic Identification System) and LRIT are different systems using different channels and purposes, even though both relate to ship identification and tracking • Recall that SSAS (Ship Security Alert System) sends covert distress/security alerts and is not the routine channel for LRIT position reports