Auto Notch; Testing And Using The Detector; Indoor Testing - Radio Shack Discovery 200 Owner's Manual

AUTO NOTCH
When the detector is set to AUTO
NOTCH, it sounds a low tone and dis-
plays an indicator when it detects nick-
els and small gold objects, and
automatically ignores most junk metal
items. It sounds a high tone when it
detects metals such as copper, silver,
and brass.
You can widen or narrow the range of
metal types that the detector will de-
tect by adjusting
DISC/NOTCH
on the
front of the detector (see "Adjusting
DISC/NOTCH" on Page
14).
Follow these steps to set the detector
to the AUTO NOTCH target mode.
1. Raise the searchcoil about 1 foot
then press
AUTO NOTCH.
An
arrow on the bottom display points
to
AUTO NOTCH.
AUTO NOTCH
2. Adjust
DISC/NOTCH
on the front of
the detector to widen or narrow the
range of metal types that the
detector will detect.
TESTING AND USING
THE DETECTOR
To learn how the detector reacts to dif-
ferent metals, you should test it before
you use it the first time. You can test
the detector indoors and outdoors.
Indoor Testing
1. Turn on the detector.
2.
Set the tar_ g et mode.
3.
Place the detector on a wooden or
plastic table, then remove any
watches, rings, or metal jewelry
you are wearing.
4. Adjust the searchcoil so the flat
part points toward the ceiling.
Note: Never test the detector on a
floor inside a building. Most build-
ings have metal of some kind in
the floor, which might interfere with
the objects you are testing or
mask the signal completely.
5. Slowly sweep a sample of the
material you want the detector to
find (such as a gold ring or a coin)
1-2 inches or more above the face
of the searchcoil.
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