EPIRBs and PLBs emit a digital 406
MHz distress signal, containing a unique 15-digit HexID beacon identifier, to the international Cospas-Sarsat Satellite System
the Signal is forwarded to the nearest local user terminal (LUT) ground station within minutes
the alert is then processed by the nearest mission control centre (MCC) and forwarded to the rescue coordination centre (RCC)
if validated, RCC begins to arrange search and rescue operation
the beacon registration details at AMSA are provided to the RCC in the country in which the beacon is both activated and registered
if your beacon is registered, AMSA Search and Rescue will ring your emergency contacts immediately for information regarding your whereabouts
if the beacon has GPS location capability then the time to provide location and alert is up to 20minutes with a location accuracy of 120m
if the beacon does not have GPS location capability then the time to provide location and alert is 1.5-5hrs with a location accuracy of 5km
weather, terrain and accessibility of your location may further delay searches
in general you should expect at least a few hours before a search and rescue team arrive in your vicinity
it is thus important that you have first aid (eg. snake bite bandages) and survival gear (warm dry clothes, ability to light a fire, etc) with you