Ground Balance - Minelab GPX 6000 User Manual

Ground Balance

Ground Balancing enables the detector to separate unwanted ground signals from
target signals� The GPX 6000™ features automatic ground tracking as well as
manually initiated Ground Balance� It also has two Ground Type settings for even
greater Ground Balance control�
The GPX 6000™ is constantly monitoring and tracking the ground as well as the operators' input in order to track and remove
ground noise� The in‑built automatic tracking is a reliable choice for most detecting conditions, however this section will
guide you through the additional ground balancing options and when to use them�
To fully understand the ground balance process there are several things to consider:
Upon Start‑up
Shortly after the detector is powered on and the start‑up process is complete, the detector will begin to rapidly track and
cancel the ground response� For this reason it is recommended to hold the coil 100 mm (4 in) above the ground before
powering on the detector� This ensures as much time as possible is available to capture the ground response as the coil is
raised and lowered over the ground�
Always follow the turn‑on sequence over ground that does not contain any metal targets�
Automatic Tracking
The detector is always tracking the ground and is constantly removing ground noise� Automatic tracking provides slow,
steady and reliable ground balancing for a seamless detecting experience�
Quick‑Trak
The operator can manually initiate a rapid ground balance by performing the Quick‑Trak procedure
required when moving between different detecting areas in order to manage any changes in ground conditions�
Ground Type
Ground Type controls the amount of unwanted ground noise that is removed from the audio response�
Difficult Ground (Default)
In some ground, there are medium to high levels of mineralisation, or the ground conditions will vary quite quickly
across several metres (yards) of distance� To manage these ground conditions, changing the Ground Type to
Difficult is recommended�
Normal Ground
If the ground response is minimal, changing the Ground Type to Normal is recommended�
Conductive Ground
In some circumstances the ground noise may be due to conductive ground effects� Conductivity is common in salty ground
or in wet ground after a recent rain� In these instances, change to a Double‑D coil and then follow the
Cancel Procedure (page 14)�
CONTENTS
15
(page 16)� This is
Double‑D Coil Noise