bca Tracker DTS Quick Reference page 8

Operating Instructions
Step back from beacon 1 at least three meters and re-engage
beacon 1 in your center search light. With the center search light
engaged, switch the Tracker to SP mode (Figure I). Then rotate
the Tracker slowly until another signal is detected (beacon 2),
most likely with a larger distance reading. If the Tracker is rotated
more than about 40 degrees away from the flux line of beacon 1,
that signal will disappear, allowing you to focus on the signal
from beacon 2. This "filtering" process can often simplify multiple
searches.
Figure I
Multiple burials/
Special mode
Only travel far enough in SP
mode to confirm the distance
is decreasing and which way
the flux line is trending. At
1
this point, a good rule of
thumb is to ignore further
readings and swiftly travel at
3
least 3/4 of the distance dis-
played. Then lock in beacon
2 by switching back to search
mode.
If two signals are captured in the same directional window, or no
other signal is captured at all, it can be helpful to step three
meters to the right or left and try again.
Once you have located another signal, 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 flux line is trending. If
the flux line is curving sharply, continue in SP mode until it
becomes straighter. 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.
If after finding a victim, you do not know how many are still
buried, it is helpful to enter SP mode and check all four sides
surrounding that victim. If still no signals are detected, continue
the search as if it were a multiple burial. Revert to search mode
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and perform a primary search of the remaining unchecked areas
within the debris pile.
Three or more victims
If more than two beacons are buried, multiple burials become
extremely complex with any transceiver. If using special mode,
after locating beacon 1, it is helpful to start each fine search from
the same point, most likely back at beacon 1. By returning to this
reference point, you are likely to recognize which signals you
have located and which ones you have not. If using search
2 mode, after locating beacon 1, it is best to perform a primary
search pattern away from that beacon through the remaining
unchecked area. The Tracker will isolate each beacon as you
become closer to that beacon than the ones already located.
For more details on multiple burials, please refer to our website:
www.bcaccess.com.
Operating Instructions
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