Set the Front Control Panel switches to the
following positions.
Press and release the On/Off switch on the
Rear
Control Panel (p. 26)
.
Raise the coil off the ground and Press the
Auto Tune (p. 32)
button to reduce electrical interference. The tuning process
takes approximately 60 seconds. Do not move the coil or
pass metal objects near the coil until you hear 3 beeps.
Turn the
Threshold (p. 33)
control clockwise until a hum is
audible through the headphones.
Whilst raising and lowering the coil, between 25mm and
100mm (1" and 4") from the ground, change the Ground
Balance switch to
Tracking (p. 40)
. Any variations in the
Threshold will smooth out within 3–5 seconds.
Adjust the
Threshold (p. 33)
to a very faint but still audible
level. It should be smooth with only minor fluctuations.
You are now ready to start searching!
Minelab is always interested in your opinions. If you have
any questions or comments regarding your GPX Series or
any other Minelab product, please feel free to contact us
directly or via your local Authorised Minelab dealer.
For further product information and detecting tips, refer to:
www.minelab.com
Quick Start
Summary of Contents for GPX 4800
Page 1: ...Instruction Manual...
