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Virtually all 406 MHz beacons incorporate a self-test mode of operation. Standard Self-Tests of beacons usually involve pressing a button or lifting a lever on the beacon and holding it for a few seconds. This usually results in the beacon flashing an LED or Strobe and/or creating an audible sound that indicates that the internal circuitry of the beacon is functioning correctly. You should always carefully follow the beacon manufacturer's instructions when carrying out a self-test as it is possible to get false results or inadvertently trigger a false alarm if perform the self-test incorrectly. If the beacon fails, then you should contact the beacon manufacturer or an appointed service agents for further advice and instructions.
Emergency Locator Transmitters (ELTs) are distress radio beacons which transmit location information about aircraft directly to Search and Rescue (SAR) forces letting them know that the owner is in grave and imminent danger.
A UIN is a Unique Identifier Number that is programmed into each beacon at the factory. The UIN number consists of 15 digit series of letters and numbers that make up the unique identity of the beacon. The UIN is on a white label on the exterior of the beacon. The UIN is also referred to as the Hex ID.
You should check the local regulations of any place you plan to visit with your beacon. Some countries require you to have a radio license and some countries even have restrictions on the use of beacons. However, if it's a true emergency, then you should always activate your beacon.
If a problem is detected in the ELT, the LED will produce a coded signal. The LED will flash in order of importance with approximately .5 to 1 second pulse between each coded signal if multiple errors are present. The coded signal and related problems are as follows:
Southeast Aerospace has full bench test and programming capabilities for all Artex (Cobham) ELTs. Please contact the SEA Service Dept for any ELT service questions.