NaviTrack FloatSonde User Manual
Locating the NaviTrack
FloatSonde
™
The FloatSonde is weighted to position its core
vertically in order to produce a stronger signal for
locating. Because of the altered orientation, the
procedure for locating the FloatSonde differs from
that of a conventional sonde, which has a horizontal
core.
When locating with a horizontal sonde, a NaviTrack
receiver sees two poles and an equator. (Fig. 1)
When locating the FloatSonde, only one pole is
‘visible’. The equator and second pole cannot be
seen above ground. (Fig. 2)
Fig. 1
Fig. 2
Under normal conditions, the sonde will be located
directly below the pole, and the pole will be located at
the point of highest signal strength. If the pole and
highest signal strength are
not
located at the same
point, the sonde is tilted. (Fig. 3)
Fig. 3
Locating a tilted FloatSonde is similar to locating a
horizontal sonde. The equator and possibly the
second pole will be visible, depending on the angle of
tilt. A tilted sonde, however, will not be located
directly below the pole, or the equator. The
FloatSonde can still be located by finding the point of
maximum signal strength.
pole
pole
pole
equator
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