Emergency Position Indicating Radio Beacon – EPIRB

Emergency Position Indicating Radio Beacon – EPIRB


The system of modern 406 megahertz
satellite EPIRBs became operational in 1989 designated as category 1 or
automatic and category 2 or manual these units operate on a dedicated rescue
frequency to provide worldwide all-weather distress signalling
capability the 1995 introduction of gos or geostationary Earth orbiting
satellites gave the system instantaneous signal recognition from virtually
anywhere on the globe today activating a 406 megahertz each firm provides
authorities with all of the information contained on the owners epub
registration and identification card within 6 to 10 minutes data from polar
orbiting satellites gives them the EPIRBs precise position as soon as the
satellites are in proper orientation depending on your location
this occurs within a period ranging from a matter of minutes to a few hours an
older system of Class A and Class B units broadcasting at 121 point five and
243 megahertz remains operational these are civilian and military distress
frequencies that are monitored by satellites and aircraft while the older
units still work they don’t offer all of the benefits of the 406 megahertz system
the older EPIRBs system leaves large portions of the world entirely
unprotected and the shared broadcast frequencies suffer from interference and
false alarms Class A units no longer satisfy
regulatory requirements and should be used only for backup Class B units
remain popular options primarily as personal units for Mariners whose
vessels operate in covered areas before you rely on one of the older units be
sure you understand its limitations eeep herbs are designated as either automatic
or manual automatic units must be installed in a manner that permits them
to float free from a sinking vessel once freed from the canister or mounting
bracket an automatic EPIRBs turns itself on and assumes a correct operating
position automatic units incorporate manual switches for activating or
disarming the eeper manual units must be switched on by the user
in either case the signal is relayed to a Rescue Coordination Center while the
old one 21.5 243 megahertz system enables authorities to determine the
location of an FM signal the more stable signal provided by the 406 megahertz
system provides greater accuracy and greatly improves the chance that you’ll
be found quickly

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