Reverse Discrimination Technique - Garrett Infinium LS Owner's Manual

. Reverse Discrimination Technique:
When a target has been discovered while operating
at minimum discrimination, you may use the reverse
discrimination technique to help determine possible
target identification.
A. Once a target is found, increase discrimination to
maximum level (Iron Check).
B. If the target still produces a substantial signal
there is a good chance it is iron. If the target has
disappeared or produces only a faint signal then it's
probably a desirable target and not iron. Be aware,
however, that some small iron may behave like a
desirable target, and some desirable targets such as
large nuggets and coins may behave like iron.
C. A s with all PI detectors, eliminating the detection of
iron is difficult if not impossible; however, the reverse
discrimination technique is effective at identifying
most iron. In addition, attaching a magnet to the
inside of your digging tool can help separate bits of
iron and other debris from your treasure finds.
D. F inally, it is important to remember that any detec-
tion signal, no matter how loud or faint,
represents the sound of metal and its source should
always be determined.
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