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A good method for pinpointing in ALL METAL Mode is "X-ing" the target with the searchcoil.
Remember that the target's response sound is always greatest when the target is directly under
the center of the searchcoil. To "X" a target, sweep the searchcoil over the target from side to
side and then from front to back until you can identify the center of the X—the spot on the
ground where the target response sound is the greatest.
Pinpointing a target in DISCRIMINATE Mode is probably best done by "X-ing" as well.
Remember that the detector will beep just as the target passes under the center of the searchcoil.
Slowing the sweep speed down will help you pick out the center of the X because the target
response is reduced at very slow speeds making it easier to correlate the sound with the coil
center.
Another easy method is to sweep the coil from side to side across the target in very short sweeps
as you slowly move forward and backward across the target. Slow down the sweep rate and
shorten the sweeps until you just barely get a response at one spot. The target will be directly
below the coil center at this response time.
Another method of pinpointing in the DISCRIMINATE Mode is to quickly change to the ALL
METAL Mode to check the target response. Remember that the ALL METAL Mode is not
susceptible to the false signals of the DISCRIMINATE Mode and can sometimes give a clearer
and more consistent response to difficult targets such as a dime buried next to a pulltab. By
switching back and forth between modes and comparing the target response sound in all metal to
the target response sound in discriminate, you can often better identify the likely location of the
target.
Finally, raising the searchcoil during pinpointing can also help by narrowing the response to the
target. Practice pinpointing often, and you will soon become more accurate and faster.
Recognizing False Signals in Discriminate Mode
When operating in the DISCRIMINATE Mode, some "false signals" may be caused by 1) heavy
concentrations of trash metal objects, 2) very large trash metal objects, or 3) electrical
interference. These signals are generally short, choppy sounds and sound different than "good
signals" (good target response sounds).
At the end of your sweep, as you reverse the coil direction, the detector is most susceptible to
trash-induced noise. There are two ways to tell whether these sounds are good deep signals or
trash "noise." The first is by repeatability. Trash-induced noises will not be regular as you sweep
the coil over the suspected target several times, whereas a good target response will be
repeatable. The second method is to switch to the ALL METAL Mode and check the target
response sound. If the response is weak, it may well be a deep, good target. But if the response is
very strong, it is probably trash. Note that a coin close to the surface can give a double beep
sound, but it is regular and repeatable. Raising the coil an inch or two will restore the single beep
on surface targets.
When searching in the DISCRIMINATE Mode, it is best not to use a higher DISCRIMINATE
LEVEL setting than necessary. Nickels and most smaller rings are rejected when the
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