Item: Avalanche beacons -working principles, specifications and comparative propertiest
Title: Avalanche beacons -working principles, specifications and comparative propertiest
Proceedings: 1984 International Snow Science Workshop, Aspen, Colorado, USA
Authors: David A. Lind and W. R. Smythe
Abstract: The most widely used personal avalanche beacons operating at 2.275 kHz or 457 kHz frequency depend on the magnetic coupling of the sender and receiver units. The sensitivity depends on the separation distance, r, as the function r-and in a complex manner on the relative orientation of the sender and receiver. A discussion of the performance and strategies for optimum use is given. Means to establish standards of performance will also be suggested. Finally, remarks concerning interference and spurious signals are made along with suggestions for improving directional and quantitative response.
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Keywords: frequency, separation distance, principles of operation
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