bca Tracker S - Fine Search; Pinpointing;Probing; Shoveling; Multiple Burials

ENGLISH
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Operating InstructionsOperating Instructions
Fine Search:Thene
searchisthenalpartof
the transceiver search,
which is performed on
foot with the transceiver
positioned at or near
the snow surface. The
objectiveofthene
search is to locate where
the signal is strongest
(distance reading is
lowest)andtoreduce
the area to be probed.
Move Tracker S slowly
in a straight line along
the surface of the snow
duringthenalthree
metersofthenesearch.
The directional lights do
notilluminateinthenal
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H).Repeatifnecessaryalong
bothaxes.Beginprobingatthelowestdistancereading.
Pinpointing/Probing
At your lowest distance reading, probe in concentric circles, with each
probeholeabout10inches(25cm)apart(FigureI).Yourprobeshould
enterthesnowperpendiculartotheslope.Onceyouhaveconrmedthe
victim’s location, leave the probe in the snow.
90°
10” 10”
25 cm 25 cm
10”
25 cm
Figure I
Shoveling
Shovelingisdicultandconsumesthemajorityoftimeduringanavalanche
rescue.Forbestresults,startshovelingjustdownhilloftheprobe(FigureJ).
Makesureyourholeisatleastone“wingspan”wide.Inburialsdeeperthan
one meter, other shovelers should help move snow out the downhill side of
the hole.
1.5 x
burial depth
Figure J
Multiple Burials
When more than one transmitting victim is within the receiving range
of Tracker S, the multiple burial icon
q
will illuminate and stay solid.
(Note:thisiconcanoccasionallyilluminateirregularlyinthepresence
ofelectromagneticnoiseorwhendetectingolderanalogtransceivers).
If there are more than two transmitting victims within range, then the
“+”iconwillilluminate.
If the multiple burial icon is illuminated and/or Tracker S displays more
than one distance and direction, then there are probably several victims
within range. Stay in search mode and focus on the closest distance
reading, attempting to engage that signal in the center search light.
Onceyouaresignicantlyclosertoonesignalthantheother,TrackerS
will“lock”ontothatsignalandmaskouttheothers.Oncethissignal
is isolated, Tracker S will behave very similar to how it does in a single
transceiversearch.Onceyouhavelocatedandexcavatedtherstvictim,
turnhisorhertransceiveroifyoudeterminetheconditionsaresafe.
Ifyouhaveaclearsignal,thenbeginsearchingforthenextvictim.
Ifitisnotpossibletoturnotherstvictim’stransceiver—andyouhave
enough people to begin shoveling—then we recommend isolating the
nextsignalusingSignalSuppression.
3.0
2.0
1.0
2.0
3.0
1.6
1.6
Bracketing:Makesure
you go well past the
lowreadingtoconrm
it is the lowest. When
bracketing, ignore the
directional lights, which
no longer illuminate at
less than two meters.
Do not rotate the
transceiver during
this process, as it can
change the distance
readings.
Figure H