Distress Radiobeacon
Distress radio beacons, also known as emergency beacons, PLB, ELT or EPIRB, are tracking transmitters which aid in the detection and location of boats, aircraft, and people in distress. Strictly, they are radiobeacons that interface with worldwide offered service of Cospas-Sarsat, the international satellite system for search and rescue (SAR). When manually activated, or automatically activated upon immersion, such beacons send out a distress signal. The signals are monitored worldwide and the location of the distress is detected by non-geostationary satellites, and can be located by some combination of GPS trilateration and doppler triangulation.
The basic purpose of a distress radiobeacon is to help rescuers find survivors within the so-called "golden day" (the first 24 hours following a traumatic event) during which the majority of survivors can usually be saved.
Since the inception of Cospas-Sarsat in 1982, distress radiobeacons have assisted in the rescue of over 28,000 people in more than 7,000 distress situations. In 2010 alone, the System provided information which was used to rescue 2,388 persons in 641 distress situations.
Read more about Distress Radiobeacon: General Description, Classification Nomenclature, Beacon Modes, Frequency, Types, Activation Methods, Advantages and Disadvantages of The Various Beacons, Phase-out of 121.5 & 243 Beacons, SAR Response To Various Beacons, Responsible Agencies, Statutory Requirements, How They Work, GPS-based, Registered, High-precision Registered, Traditional ELT, Unregistered, Location By Doppler (without GPS), Operational Testing, Satellites Used, History, Current Events, Alternative Technologies
Famous quotes containing the word distress:
“He is not affected by the reality of distress touching his heart, but by the showy resemblance of it striking his imagination. He pities the plumage, but forgets the dying bird.”
—Thomas Paine (1737–1809)