bca Tracker2 Owner's Manual page 13

signal is strongest (distance reading is lowest) and to reduce the area
to be probed.
Move your beacon slowly in a straight line along the surface of the
snow during the final three meters of the fine search. The directional
lights do not illuminate in the final two meters, so only pay attention
to the distance readings. From the point where you have located the
smallest reading, "bracket" at 90-degree angles to the left and then to
the right in search of a lower reading (Figure E). Repeat if necessary
along both axes. Begin probing at the lowest distance reading.
Figure E
Bracketing: Make sure you go well past
the low reading to confirm it is the lowest.
When bracketing, ignore the directional
lights, which no longer illuminate at less
than two meters. Do not rotate the beacon
during this process, as it can change the
distance readings.
Probing/Pinpointing
At your lowest distance reading, probe in concentric circles, with each
probe hole about 10 inches (25 cm) apart (Figure F). Your probe should
enter the snow perpendicular to the slope. Once you have confirmed
the victim's location, leave the probe in the snow.
Figure F
Operating Instructions
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