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TEST PLOT CONSTRUCTION
As you operate and use your
GTAx 550, you will quickly
grow more proficient in its use. It is recommended that
you build your own test plot. Bury several items, including
a nail, a piece of foil, a pull tab, a bottle cap and several
coins at depths ranging from one to four inches. Bury
them about 18 inches apart and clearly mark the location
of each target. Then scan and study the detection
signals.
Remember that newly buried objects, especially coins,
will be somewhat more difficult to detect than items
that have been buried for some time. This is primarily
a metallurgical phenomenon. Experiment with various
detection modes and pay attention to both audio and
graphic display signals as you scan over your test plot.
Note carefully the response of your detector at various
settings.
Practice pinpointing and locating targets precisely.
Use both the manual and the electronic methods of
pinpointing.
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