Basics Of Metal Detecting; Ground Minerals - Teknetics G2 Owner's Manual

THE BASICS OF METAL DETECTING
A hobby metal detector is intended for locating buried metal objects. When
searching for metals, underground or on the surface, you have the following
challenges and objectives:
1. Ignoring signals caused by ground minerals.
2. Ignoring signals caused by metal objects that you do not want to find,
like pull-tabs.
3. Identifying a buried metal object before you dig it up.
4. Estimating the size and depth of objects to facilitate digging them up.
5. Eliminating the effects of electromagnetic interference from other
electronic devices.
Your G 2 metal detector is designed with these things in mind.

1. Ground Minerals

All soils contain minerals. Signals from ground minerals can interfere with
the signals from metal objects you want to find. All soils differ, and can
differ greatly, in the type and amount of ground minerals present. You
therefore want to calibrate the detector to the specific ground conditions
where you are hunting. The detector incorporates both automated and
manual ground balancing features which will eliminate false signals from
most types of soils. To maximize the detector's target identification
accuracy and depth of detection, use the GROUND GRAB (GG) function
to calibrate the detector to the ground where you are searching. See the
section on GROUND BALANCING for details.
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