Sensitivity - Whites MX 7 Owner's Manual

If the minerals within these spots exceeds typical ground mineral levels, and
are seen as metal ore, they cannot be reduced by ground tracking. Reducing
the sensitivity of the detector, or using the discrimination mask, is necessary
to reduce metal responses. In some regions, hot rocks (iron rich stones) can
exceed the metal content of a mineral and thus exceed the range of any metal
detector's ground rejection. Any metal (gold silver, copper, nickel, aluminum
etc) can be found in metal ore (rock) form, as well. Again, Discrimination and
Sensitivity adjustments are the only way to deal with these responses.
The MX 7 captures ground mineral information in real time. Turning off the
Power and turning back on will automatically unlock a locked ground balance
level. This is necessary to capture new ground information. Switching in and
out of the Beach mode (a different ground rejection range) will also unlock a
locked ground balance. When powering ON/OFF or switching in or out of the
Beach mode, remember to re-lock the ground tracking if that is required for
the area.

SENSITIVITY

Sensitivity is used to increase or decrease responsiveness to targets, ground,
and external electrical noise. Maximum depth will be achieved by using the
highest setting possible for the area. Settings 1–10 are available. Increasing
sensitivity to 10 activates the Audio Boost feature, which amplifies the audio
responses of small signals. Audio Boost is intended to achieve maximum preci-
sion on weak signals, and is not well-suited for general searching. Reduced
sensitivity is often needed to search bad ground conditions or high electrical
activity areas.
When the ground is highly mineralized (typically high iron), reduced sensitivity
often increases detection depth. Finding the level that provides for smooth,
stable operation and easy target identification is important to maximize perfor-
mance. Few areas will allow maximum sensitivity settings.
• During normal searching, press the + button to increase sensitivity; press the - button to
decrease sensitivity. The MX 7 provides quick and convenient up or down sensitivity during
use without accessing Options. The current sensitivity setting shows briefly where the VDI
number normally is displayed.
• Sensitivity adjustment is not availabe in Options, but only with the + or - buttons when not in
the Options mode.
PROGRAMS
A program is a complete selection of options for specific or targeted metal
detecting.
To select a Program:
1. Press Options and use the up & down arrows to select Program.
2. Press + & - to select the highlighted program.
3. Press Options again to return to normal searching or wait for it to time out
(10–15 seconds).
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