Item: 457 khz electromagnetism and the future of avalanche transceivers
Title: 457 khz electromagnetism and the future of avalanche transceivers
Proceedings: Proceedings of the 2000 International Snow Science Workshop, October 1-6, Big Sky, Montana
Authors: John Hereford, Rescue Technology, Inc. Bruce Edgerly, Backcountry Access, Inc
Abstract: The standardized frequency for avalanche transceivers, 457 kHz, presents many interesting, important, and confusing issues, especially related to receive range, flux lines, near field, interference, point sources, receiver design, searching, and specifying and measuring transmit power and receive range. Improved standards and the possible addition of a higher frequency will help in providing a sophisticated, yet uncomplicated beacon in the future for the expeditious rescue of avalanche victims.
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Keywords: flux lines, transceiver, victims, avalanche
Digital Abstract Not Available