Ground Balancing
All soils contain minerals. Signals from ground minerals are often tens or hundreds of times as strong as the signal from a buried
metal object. The magnetism of iron minerals, found in nearly all soils, causes one type of interfering signal. Dissolved mineral salts,
found in some soils, are electrically conductive, causing another type of interfering signal.
Ground Cancellation is the process by which the metal detector cancels the unwanted ground signals while leaving signals from
buried metal objects intact. This is accomplished by establishing the detector’s internal Ground Phase setting; this setting is
calibrated to the soil and eliminates the ground minerals’ signal.
When the detector is calibrated to the actual soil condition, the result will be deeper target detection, quieter operation, and more
accurate target identification. This calibration, or Ground Cancellation, can be accomplished automatically with the detector’s internal
computer, by pushing the Trigger Switch forward, or manually in the All Metal menu.
The ground cancellation setting carries through into both All Metal and Discrimination modes. In Discrimination mode, the ground
signal is generally inaudible unless the discrimination setting is 0.
Ground Phase
From 1 to 99 level, Ground Phase is a passive data reflect how much the machine react to the ground mineralization.
Mineralization Level
The round bar graph chart is the ground condition display. Magnetic mineralization material such as iron oxide, hot rocks and
magnetite. At the seashore this may involved by black sand or salt water. You need to perform ground balancing by pump the coil to
have the newest ground condition. You can also adjust the ground phase by the mineralization level. For high mineralization ground
you may need to lower the threshold and/or gain level.
Frequency
It is the setting which enables to change the operating frequency of the device. It is used to eliminate the electromagnetic
signals that the device receives from another detector which operates in the same frequency range nearby or from the
surroundings. If too much noise is received when the search coil is lifted in the air, this may be caused by the surrounding
electromagnetic signals or too much gain. In this case, first reduce the GAIN. If the noise is not eliminated, you can choose
to shift the frequency. The device offers 5 different frequencies. Default setting is frequency 03.
PROGRAMMING
Summary of Contents for Quest Pro
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