Mammut ELEMENT Barryvox Reference Manual page 13

SEARCH MODE
4.1.1 Signal Search
From the start of the search until you hear the first
tone, you are in signal search.
The avalanche surface is searched systematically
until you pick up a signal. During the acoustic sig-
nal search, the rescuer has the visual focus on the
surface of the debris in order to be able to see body
parts or objects protruding the snow surface.
The ELEMENT Barryvox ® uses the symbol
a generic instruction to apply one of the follow-
ing search patterns for new signals!
Optimization of Range
To optimize the range, rotate the transceiver slowly
around all axes. Hold the device with the loudspeaker
facing your ear sidewise of your head.
®
If your Barryvox detects that the signal search
strip width needs to be reduced due to a device
transmitting far apart from the normative regula-
tion, the reduced search strip width will be indicat-
ed.
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Regardless of the operating mode, the following
search strategies apply:
Search strategy if the last seen point is known. The
signal search strip extends downhill from the last
seen point in the direction of the slide
LAST SEEN POINT
as
Search strategy if the last seen point is unknown.
LAST SEEN POINT
SINGLE RESCUER
LAST SEEN POINT
MULTIPLE RESCUERS
4.2 Auto-Revert to SEND
Auto-revert to SEND automatically switches the
transceiver from the SEARCH mode to the SEND
mode if no user interaction occurs during 8 min-
.
utes.
Prior to reverting, the device will sound an audible
alarm. Reverting can be avoided if either of the
keys is pressed within 30 seconds of the alarm.
In case rescuers are buried in a second avalanche,
this function allows them to be located using trans-
ceivers.
UNKNOWN
UNKNOWN
Elementary understanding of transceiver search
The 457kHz transmitter of the transceiver has a spa-
cial, kidney shaped transmit distribution, which is
visualized with field lines in the illustration below.
The searching transceiver leads the rescuer along
the field lines and therefore usually not in a straight
line to the buried subject.
Search Along the Field Line: Flux line search
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