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An avalanche transceiver or avalanche beacon is a type of emergency locator beacon, a radio transceiver (a transmitter and receiver in one unit) operating at 457 kHz for the purpose of finding people buried under snow. They are widely carried by skiers, particularly back country skiers for use in case a skier is buried by an avalanche.
The transmitter coder takes consecutive pairs of data symbols {S1, S2}, normally sent directly from one antenna. For two transmit antennas the symbols {S1, S2} are transmitted unchanged from antenna #1 while simultaneously from antenna #2 is sent the sequence {-S2*, S1*}. At the receiver some linear algebra is needed for decoding.
The company also offers avalanche transceivers under the Barryvox brand. [27] In addition to the main Mammut brand, the Mammut Sports Group also included Ajungilak (sleeping bags), Lucido (headlamps) and Raichle (shoes) as independent brands. The company now only carries Mammut as its main brand (for example, Raichle was discontinued around ...
Antenna dismantled, deteriorating transmitter building and Haiku Stairs remain Bratland - Omega Station A (LEA) Brattland, Norway: 12.1 kHz: 11,500-foot (3,500 m) valley span antenna over salt water. dismantled in 2002. Building and helix house remains
Avalanche Transceivers — known as beacons, "beepers", peeps (pieps), ARVAs (Appareil de Recherche de Victimes en Avalanche, in French), LVS (Lawinen-Verschütteten-Suchgerät, Swiss German), or various other trade names, are important for every member of the party. They emit a "beep" via 457 kHz radio signal in normal use, but may be switched ...
"I think I was only there the first day. Maybe I made it to day two," she added. "We did the read-throughs and they staged it, and then they're like, we better get somebody else."
New York-based cybersecurity firm Wiz says it has found a trove of sensitive data from the Chinese artificial intelligence startup DeepSeek inadvertently exposed to the open internet. In a blog ...
The suspects in the killing of a Border Patrol agent had been associating with multiple people suspected in a series of violent crimes across the U.S., prosecutors say.