DIN EN 282:1991-10

Foreword
Introduction
1 Scope
2 Normative references
3 Safety requirements
3.1 General requirements
3.2 Frequencies
3.3 Transmitted field strength
3.4 Modulation and carrier keying
3.5 Temperatures
3.6 Performance after shock
3.7 Performance during immersion in water
3.8 Performance after vibration
3.9 Prevention of loss of essential components
3.10 Switching over from transmit to receive
3.11 Change in the received signal
3.12 User aspects
4 Tests
4.1 Storage temperature
4.2 Free fall
4.3 Vibration
4.4 Correct performance
4.5 Immersion in water
4.6 Joints between essential components
4.7 Changes in the received signal
5 Operating instructions
6 Marking
Internation patent classification

Applies to systems used in searching for and/or finding people hidden by avalanches, for rescue. The avalanche beacons shall consist of a transmitter and receiver part. The two beacons covered are type 1 single frequency (457 kHz) and type 2 double frequency (2,275 kHz and 457 KHZ) temporary type, compatible with beacons having frequency of 2,275 kHz. Intended to ensure the practical interoperability and reliability of products from different manufacturers.