Garrett Metal Detectors Metal Detector GTI 1500 User Manual
Page 57
as ground and atmospheric conditions
permit. Attempting to operate at sensitivi-
ties above a level that permits a quiet and
stable operation may actually cause you
to miss deep targets that you would have
found had you not "pushed" the detector.
Another point to remember is that when
you are searching with SENSITIVITY set
below the maximum under "less-than-
perfect" conditions, you will always have
additional detection power when you are
able to use it.
Test Plot Construction
As you search and use your GTI 1500,
you will quickly grow more proficient in its
use. Building and using your own test plot
will sharply increase this proficiency. Bury
several items at varying depths of 1"-6"
about 18" apart. Include several coins, a
ring, a nail, a piece of foil, a pull tab and a
bottle cap. Bury large items such as a 12-
oz. can or a length of pipe deeper (10").
Clearly mark where each article is buried
and its depth. Scan over them while care-
fully studying the detection signals.
Graphic Target Imaging 1500 - 57