🔍 Key Concepts

• GMDSS locating signals vs distress alerts – what each one is used for • Equipment that actually helps home-in on a casualty (direction finding / homing) • Typical locating-signal transmitters: SARTs, survival craft radios / EPIRBs, vs older systems like autoalarm generators

💭 Think About

• Ask yourself: which of these devices sends a signal specifically designed to help rescuers physically home in on the position, not just announce distress? • Which item in the list is an older, pre‑GMDSS system, and does it transmit a modern GMDSS locating signal? • For each option, decide: does this equipment send a homing/locating signal, a distress alert, or both?

✅ Before You Answer

• For each device in the options, verify its primary function in GMDSS: distress alert, locating, or both. • Confirm whether a SART (Search and Rescue Transponder) and a survival craft VHF are identified in GMDSS as locating devices. • Check if an autoalarm generator is part of the current GMDSS locating-signal suite, or if it belongs to an older radiotelegraphy system no longer used for GMDSS locating.