Which device is used to transmit distress signals automatically in a sinking vessel?

Which device is used to transmit distress signals automatically in a sinking vessel?

• A. Emergency Position Indicating Radio Beacon
• B. SART
• C. AIS
• D. Radar Reflector

Answer: (A)

An EPIRB is designed to automatically transmit a distress signal when a vessel is in trouble, including if it is sinking. When activated (and many models auto-activate on immersion), it sends a beacon signal on dedicated frequencies to satellites (COSPAS-SARSAT) with your vessel’s identity and approximate location, triggering search-and-rescue response worldwide. This automatic, satellite-assisted alerting is what allows rescuers to locate you even if you cannot communicate directly or if you’ve already gone down. SARTs are radar transponders that respond to interrogation by a ship’s radar to aid detection on radar screens; they don’t continuously broadcast distress signals and aren’t automatic distress beacons in a sinking vessel. AIS transmits vessel data to other ships and shore stations, but it isn’t a dedicated automatic distress beacon and may not reach SAR authorities in the way an EPIRB does. A radar reflector is passive and only increases radar return; it does not transmit anything.

An EPIRB is designed to automatically transmit a distress signal when a vessel is in trouble, including if it is sinking. When activated (and many models auto-activate on immersion), it sends a beacon signal on dedicated frequencies to satellites (COSPAS-SARSAT) with your vessel’s identity and approximate location, triggering search-and-rescue response worldwide. This automatic, satellite-assisted alerting is what allows rescuers to locate you even if you cannot communicate directly or if you’ve already gone down.

SARTs are radar transponders that respond to interrogation by a ship’s radar to aid detection on radar screens; they don’t continuously broadcast distress signals and aren’t automatic distress beacons in a sinking vessel. AIS transmits vessel data to other ships and shore stations, but it isn’t a dedicated automatic distress beacon and may not reach SAR authorities in the way an EPIRB does. A radar reflector is passive and only increases radar return; it does not transmit anything.