Garrett Metal Detectors Metal Detectors GTAx 550 - Manual (Page 22)

Target Identification
Target identification of the last target over which the
searchcoil passed will be indicated on the Upper
Scale of the graphic display. In most cases the type
of coin can also be determined by using the coin
ID guide. Encrustation or patina—and sometimes
ground mineralization—may affect conductivity of
the coin resulting in improper classification.
Recovery
Whenever your detector locates a target, you'll
want to recover it with the least amount of digging.
Locating your target precisely will enable you to
recover it by digging the smallest hole possible.
This is accomplished by pinpointing. (You can
then utilize another function of the GTAx 550 for
measuring coin depth.)
1. Manual Pinpointing
Pinpoint targets by first drawing an imaginary X on
the ground with the searchcoil at the place where
maximum sound occurs. You'll notice that the
searchcoil must be moving slightly and that you
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