Minelab GPX6000 User Manual page 11

Mono coil advanced procedure
The GPX 6000 detector combined with a mono coil is a powerful combination that is
ultra sensitive to gold nuggets� Mono coils go deeper than Double-D coils, however
they are more susceptible to noise�
1. Apply recommended settings
2. Swing the coil and listen for noise
3. Increase the sensitivity level if
quiet
` If the detector is quiet, begin detecting.
` If the detector is still noisy, continue the steps below.
4. Conduct a Noise Cancel
5. Reduce the Sensitivity level
6. Change to the GPX 14 Double-D coil
` If the detector is quiet, begin detecting.
CONTENTS
Adjust the detector settings to the following settings:
` Sensitivity: Level 6 (manual)
` Ground Type: Normal
` Coil Type: Mono
These settings provide the best basis for the advanced
Mono and Double-D coil detecting procedures�
Swing the coil over an area of metal-free ground near to
where you will be detecting� Swing the coil as close and
parallel to the ground as possible� Listen carefully to the
signals� There should be audible tone variation, but not so
much that signals sound erratic or noisy�
If the signals are very stable and audible indicating very
low levels of environmental noise,
increase the Sensitivity level�
If noise is present when the coil is held still over the
ground, EMI is likely to be the source of the noise�
Conduct a Noise Cancel procedure (page <?>)� This will
remove noise caused by EMI�
Reduce the Sensitivity level
Keep the coil stationary when adjusting the sensitivity in
order to remove noise from EMI�
There is too much EMI for a Mono coil�
Power off the detector and change to the
Double-D coil, then follow the steps in
advanced procedure" on page
11
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"Double-D coil
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