The beacon monitoring system

The system for monitoring distress beacons is made up of the Cospas-Sarsat system that tracks distress beacons using satellites and the use of aircraft listening on the aviation distress frequency of 121.5 MHz. All 406 MHz beacons in Australia also transmit a signal on 121.5 MHz used for homing by the search aircraft. Information on beacon alerts is all passed to RCC Australia where it is analysed and a Search and Rescue (SAR) operation coordinated.

This section highlights important changes being made to the system in 2009 and explains the history and workings of the Cospas-Sarsat system.

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This site is maintained by the Australian Maritime Safety Authority