User manual

Graphic Target Imaging 2500 - 87
eralization could also limit detection depth
when searching in the Discriminate mode.
There is a way, however, to let the precise
discrimination possible with the GTI 2500
help you find gold even though discrimi-
nation usually limits the amount of small
nuggets found. There are some highly
productive areas, however, that contain
so much iron trash that a small amount of
discrimination becomes highly desirable,
even necessary.
Here's a suggestion: Occasionally you con-
tinually encounter one particularly trouble-
some trash target in an area where you're
hunting for gold. The GTI 2500 offers
you an easy solution. Just switch to the
Discriminate/Zero mode and "notch out"
that single pesky target. Then, when
you encounter suspicious targets in the
All-Metal mode, you can quickly and eas-
ily check them with your "notched" Zero
mode. Or, you can hunt in the Zero mode
itself. You may lose some depth on an
occasional nugget; but, the time you save
could enable you to find more nuggets that
you might have missed!
Hot rocks are a problem for any electronic