46 Garrett Metal Detectors
AT Gold
™
47
•
Alternative pinpointing technique: DD-tip or tail
. In the
standard pinpointing method described on page 41, the
target is pinpointed beneath the center of the searchcoil.
Some detectorists using DD coils prefer to pinpoint off the tip
or tail of the searchcoil, as follows.
Press and hold the Pinpoint
pushbutton and sweep the
searchcoil side-to-side to center
the target (the point where the
strongest audio response is
heard and the maximum signal
strength is displayed on the lCD).
Then, pull the searchcoil slowly
toward you
(see Image A)
, while
noting the target signal
.
PUll coil toward yoU
5-10cm
5-10cm
Indicates detected target
Indicates target position
Image A
Image B
Once the target signal drops off
(both audibly and on the lCD
meter), shallow targets should
be located immediately in front
of the searchcoil's tip
(see Image
B)
. Deep targets will be under or
just inside your searchcoil's tip.
This is because the conical shape
of the searchcoil's detection field
begins bending in slightly as the
depth increases.
you can reverse this pinpointing technique to pinpoint off
the DD coil's tail; in this case, push the coil away from you.
The audio and lCD meter will place the target just off the
searchcoil's tail.
•
Alternative pinpointing technique: DD-wiggle
. Quickly
locate targets
without using the Pinpoint button
as follows.
Continuously swing the searchcoil side-to-side using fast,
narrow swings of 2 to 4 inches (5–10cm). While continuing
this side-to-side wiggle, slowly move the searchcoil sideways
toward the target's suspected position until the audio response
produces a consistent, symmetric beat. This indicates the
lateral left-to-right position of the target. Then locate the
target's front-to-back position by rotating around 90° and
repeating the same process.
Tip:
Practice any or all of these various pinpointing options in
your test plot. Choose the technique that works best for you.
As you improve your pinpointing accuracy, you will dig smaller
holes and increase your productive hunting time.
