13
GROUND REJECT PROCEDURE
When your Gold Bug-2 is properly tuned or “ground balanced,”
it will have only a minimum response to ground minerals when
the search coil is raised or lowered. Precise adjustment of the
GROUND REJECT control is critical to your success. The lower the
MINERALIZATION or the higher the SENSITIVITY settings, the more
important it is to maintain proper
ground rejection.
If you change the
MINERALIZATION setting, you may
have to retune your Gold Bug-2
slightly to maintain optimum
performance. However, the
GROUND REJECT setting should be
close enough for pinpointing or for
a quick check in one of the other
modes. At worst, a change in
modes will require only a quick fine
tuning.
To tune your Gold Bug-2, follow these steps:
1. With your controls still set as
described in the “Turn On
Procedure” (See page 12), hold
the search coil parallel to and
about 6 inches above the
ground.
2. Lower the coil to within an inch
or two of the ground and
quickly raise it. Note that the
threshold tone becomes louder
as you lower the coil,
disappears when you raised it
and finally returns to normal
when you hold it 6 inches above
ground.
3. Your objective now is to adjust
Tune your Gold Bug-2 by bobbing
the search coil up and down while
adjusting the GROUND REJECT
control.
The GROUND REJECT
control consists of a coarse-
adjustment knob on top of
a fine-adjustment knob.
Figure 9.
Figure 10.
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