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S E A R C H M o d e
A d va n c e d Fe a t u r e s
4.5.4 Further Search Methods
There are further methods to search for multiple
buried subjects in close proximity.
One method uses concentric, circular search strips
with radiuses of three, six, and nine meters around
the first located subject. As with the micro search
strips, the locations with the strongest signal strength
are of interest. From there the subjects are located
using a traditional bracketing method.
5.
Advanced Features
5.1
Manual Volume Control in Analog Mode
(Analog Mode = Manual)
In the analog mode (with activated manual volume
control), the receiver sensitivity (volume) can be set
manually. This makes acoustic searches possible, as
conducted with traditional transceivers.
Buried subjects are located based on the acoustic
change in intensity of the received signal. The use of
this mode requires intensive training.
In order to be able to use the manual volume control
in analog mode, you must enable it in the «Settings»
by choosing «Manual» in the setting «Analog mode».
When using the manual volume control in analog
mode, the display can be disabled, in order to
significantly increase the range. By pressing the
- key for + on volume level 8, the display is
deactivated; subsequently pressing the
- key
for – activates the display again.
By activating the manual volume control in analog
mode, an analog tone is used for the group check,
as well.
Once your Barryvox is configured accordingly, you
can toggle between standard and analog mode with
manual volume control by briefly pressing and hold-
ing both keys at the same time for three seconds.
The sensitivity of the receiver is initially controlled
automatically.
The user can manually change the sensitivity by
pressing the
- key for + and the
- key for –.
A1 represents the shortest, A8 the greatest distance to
the buried subject.
As soon as the volume is set manually, a border is
displayed around the volume bar. The automatic vol-
ume control is disabled. If the volume is set too high
or too low, the distance and direction indications
become unreliable, and a blinking display prompts
the user to adjust the volume.
To return to the standard mode, both keys must be
pressed simultaneously.
Orthogonal Search System
(Secondary Search Phase)
Orthogonal search system with manual selection of
the receiver sensitivity:
1.
Maximum tone
Search for the loudest tone on a straight line.
2.
Reduce volume
Reduce volume until the tone is barely audible.
3.
Turn 90°
Search at a 90° angle to the previous direction.
Display in analog mode
(on the second lowest
volume setting)
