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HOW AN EPIRB WORKS – COSPAS/SARSAT
When a 406 MHz beacon is activated, the digital distress message is transmitted to
Cospas-Sarsat satellites, which in turn, relay this message to reach the SAR Authorities.
The distress message contains important information about the beacon and its owner.
Additional information about the beacon is accessed by SAR from the beacon registration
database. At the same time the 406 MHz signal is activated, a 121.5 MHz signal is turned
on. The 121.5 MHz signal is used by SAR to home in on the beacon, as they approach it.
Registration is Mandatory
this EPIRB must be promptly registered with the appropriate National Authority.
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