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Pinpointing with the ACE 250
Pinpointing is
one of the most important, but
simple to learn, techniques you
need when treasure hunting.
Knowing how to pinpoint
correctly can mean the
difference between digging a
six-inch hole or a 2-inch plug.
Using the Pinpoint Mode (ACE
250)
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The
ACE 250 is equipped
with an electronic
Pinpoint pushbutton
that makes
pinpointing more
accurate. Using this
Pinpoint Mode is
simple to do. After
detecting a target,
place the searchcoil
on the ground to the
side of the target's
suspected location.
Now, press and hold
the Pinpoint
pushbutton while
maintaining contact
with the ground and
slowly move your
searchcoil from left
to right and then
front to back over
the suspected
target's location.
The maximum sound
will be heard when
the target is
directly beneath the
center of the
searchcoil as shown.
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Targets typically
pinpoint under
center of coil. |
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Also,
while electronically
pinpointing, the
Upper Scale on the
LCD indicates signal
strength. When the
greatest number of
LCD segments
(increasing left to
right on the scale)
is shown, the center
of the searchcoil is
directly over the
target.
NOTE: Keeping the
searchcoil on the
ground will help
ensure the distance
between the coil and
the ground remains
constant throughout
the pinpointing
process; in this
case the distance is
zero inches. If the
terrain does not
allow for this type
of "coil scrubbing"
then do your best to
maintain a constant
height between the
coil and the ground. |
Pinpointing Shallow or Irregular
Targets (ACE 250)
Very shallow targets
may pinpoint under
tip of inner coil |
The
pinpoint location is
almost always in the
center of the coil.
In other words, a
target pinpointed
with an ACE 250 will
be directly beneath
the center of the
searchcoil (See
Using the Pinpoint
Mode). However,
exceptions to this
rule may occur for
oddly shaped iron
targets, such as a
nail or piece of
wire lying
horizontally in the
ground; flat objects
on edge; or, even a
very shallow coin.
In cases such as
these, the pinpoint
location may be
closer to the front
of the inner coil as
shown here.
By carefully
paying attention to
the audio signals
(and the Upper Scale
indication on the
250) you'll quickly
become familiar with
how your ACE
pinpoints deep and
shallow targets. |
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