Emergency Position-Indicating Radio Beacon (EPIRB)
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An Emergency Position-Indicating Radio Beacon (EPIRB) is a critical maritime safety device that, when activated, transmits a 406 MHz distress signal via satellite to global search and rescue (SAR) services. It identifies the vessel and provides precise location data, typically within 100 meters, to initiate rescue efforts, operating for at least 48 hours.
Key Features and Functions:
Activation: EPIRBs can be activated manually or automatically when submerged in water, typically housed in a float-free bracket on the deck.
Signaling: They send a 406 MHz signal to the Cospas-Sarsat satellite system, which alerts international rescue coordination centers.
Locating: Most modern units feature GPS/GNSS, providing, as described by Seas Of Solutions, location accuracy within 50 meters, and emit a 121.5 MHz homing signal for close-range detection by rescue teams.
Registration: They are registered to a specific vessel, allowing rescue authorities to identify the boat and contact its owners instantly.
AIS-Enabled: Newer EPIRBs also broadcast via AIS (Automatic Identification System), alerting nearby vessels to the emergency.
Key Features and Functions:
Activation: EPIRBs can be activated manually or automatically when submerged in water, typically housed in a float-free bracket on the deck.
Signaling: They send a 406 MHz signal to the Cospas-Sarsat satellite system, which alerts international rescue coordination centers.
Locating: Most modern units feature GPS/GNSS, providing, as described by Seas Of Solutions, location accuracy within 50 meters, and emit a 121.5 MHz homing signal for close-range detection by rescue teams.
Registration: They are registered to a specific vessel, allowing rescue authorities to identify the boat and contact its owners instantly.
AIS-Enabled: Newer EPIRBs also broadcast via AIS (Automatic Identification System), alerting nearby vessels to the emergency.