Robert Boesch

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Signal search

During the primary search, the avalanche surface is searched systematically with the search strip width of your device (distance depending on type of device) until you pick up a signal. The objective of the primary search phase is to detect a signal.

To optimize the range, rotate the transceiver around all axes. Once a signal is received, maintain the device orientation and continue walking until the signal can be heard clearly. The primary search phase is concluded.


  1. Signal search
  2. Coarse search
  3. Fine search
  4. First Aid
  5. Raising the alarm