Garrett ACE 350 Manual Del Usuario página 35

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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.
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.
34 Garrett Metal Detectors