Fisher 1225-X - Manual (Page 9)

Now comes the fun part - if you follow a few simple rules.
Good search techniques are every bit as important as a good
detector.
1. The 1225-X has two operating modes. The “Search”
mode is activated simply be turning the unit on.
This is a “VLF-Motion Discrimination” mode which
automatically ignores most ground minerals, rejects
junk and works only when the search coil is moving.
The “Pinpoint” mode is activated by depressing the
PINPOINT button and will be explained later.
2. Adjust your SENS control. Only experience will tell
you how much sensitivity to use in any given situation
but start out at 8.
As a general rule, turn your sensitivity down to reduce
excessive false signals caused by highly mineralized
ground interference caused by power lines, radio
stations, etc. Turn it up if you want the deepest,
smallest targets and you’re willing to put up with a
few more false signals.
3. Decide how much discrimination you want to
use.
a. In relatively non-trashy soil use a low level of
discrimination (2 for example). In this manner the
1225-X will detect all metal targets within its range
and you can instantly increase the discrimination
for further identification.
b. In trashy areas you will probably want to operate
at a high level of discrimination (6 for example)
to cut down on the amount of time you spend
digging bad targets.
4. Keep the search coil moving at a comfortable
rate. Remember that the 1225-X is a motion detector
and responds only when the search coil (or the
target) is moving while in search mode.
5. Keep the coil parallel to, and as close to the
ground as practical. This is important for maximum
coverage and depth. If you are hunting on a lawn
you can set the coil right on the grass and search.
6. Overlap your sweeps approximately 50%.
SEARCHING
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