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IN THE FIELD TECHNIQUES (continued)
Swing
the
overlapping each sweep as you move
forward. It is important to sweep the
coil at a consistent speed over the
ground as you search.
identifying a target, your sweep
technique can help in identifying both
the location and the nature of the
target.
If you encounter a weak
signal, try moving the coil in short,
rapid sweeps over the target zone;
such a short rapid sweep may provide
a more consistent target identification.
Most worthwhile objects will respond
with a repeatable tone. If the signal
does not repeat after sweeping the
coil directly over the suspected target
a few times, it is more than likely trash
metal.
Crossing the target zone with
multiple intersecting sweeps at
multiple angles is another way to
verify the repeatability of the signal,
and the potential of the buried target.
To use this method, walk around the
target area in a circle, sweeping the
coil across the target repeatedly,
every 30 to 40 degrees of the circle,
about ten different angles as you walk
completely around the target. If a
high-tone
target
disappears from detection at a given
angle, chances are that you are
detecting oxidized ferrous metals,
rather than a silver or copper object.
WHAT
READS
LIKE THIS
16
searchcoil
slowly,
completely
...MAY
ACTUALLY
BE THIS
If the tone changes at different
angles, you may have encountered
multiple objects. If you are new to the
hobby, you may want to dig all targets
After
at first. With practice in the field, you
will learn to better discern the nature
of buried objects by the nature of the
detector's response.
You may encounter some false
signals as you proceed. False signals
occur when the detector beeps, but
no metal target is present.
signals
electromagnetic
oxidation, or highly mineralized
ground soils. If the detector beeps
once, but does not repeat the signal
with several additional sweeps over
the same spot, there is probably no
target present.
When searching very trashy ground,
it is best to scan small areas with
slow, short sweeps.
surprised just how much trash metal
and foil you will find in some areas.
The trashiest areas have been
frequented by the most people, and
frequently hold the most promise for
finding the most lost valuables.
Also maintain the searchcoil
positioned just above the surface of
the ground, without making contact
with the ground. Making contact with
the ground can cause false signals.
can
be
induced
interference,
You will be
False
by
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