bca Tracker2 Owner's Manual page 17

If no other signal is captured in SP mode and you suspect victims are
nearby, stand up and try again at chest height. If still no other signal is
detected, take three steps back and repeat (or revert to SE mode and
use the three-circle method).
Figure I
In search mode (SE), only the
strongest signal (beacon 1) is
shown. Signals further away
are received (beacon 2), but
not shown in the distance and
direction display.
Once you have located another signal in SP mode, begin to move in
that direction. If the distance consistently decreases, you are going
in the right direction. Travel far enough in SP mode to confirm the
distance is decreasing and which way the signal is trending. If more
than one signal is being displayed and it becomes unclear which one
to pursue, continue in the direction you have been searching. Always
switch back to SE mode when you think you are getting closer to
beacon 2 than beacon 1.
Figure J
In special mode (SP), all signals
are shown, but Tracker2 acts as
a "spotlight" with narrowed vision:
approximately 75 degrees in front
and in back of the searching beacon.
Only the signals within this angle
(beacon 2) are shown. This 75° angle
corresponds to the Tracker's center
three lights.
Always switch back to search mode
(SE) when you're more than halfway
from beacon 1 to beacon 2.
After finding a victim, if no further signals are detected in SP mode,
then continue the search if there are still missing victims. Revert
to search mode and perform a signal search of the remaining
unchecked areas within the debris pile. Resume your signal search at
the point where it was originally abandoned.
For more details on multiple burials, please refer to our website:
www.backcountryaccess.com.
Special Search Techniques
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