Control Functions - Fisher Gold Bug Operating Manual

CONTROL FUNCTIONS

1. MODE: This thumb activated switch instantly puts
your Gold Bug into one of three operating modes:
Auto-Tune, No-Motion or Motion. The Auto-Tune and
Motion modes are recommended for searching
whereas the No-Motion mode is usually used for
pinpointing. For a more detailed discussion, see The
section titled "OPERATING MODES".
2. SENS: Adjusts sensitivity to targets and ground
minerals. the higher the setting, the deeper you'll
detect. You'll also detect smaller targets. However
the Gold Bug is so sensitive at the maximum setting
that you'll also pick up more false signals in mineralized
soil or in areas of electrical interference. In the
extreme counterclockwise position this control
doubles as a battery test. A loud tone indicates good
batteries. A faint tone indicates weak batteries. No
tone means that it's time for a change. As a general
rule, you'll be able to use your Gold Bug for about an
hour after the battery test goes silent.
3. GROUND REJECT: This dual knob control is used
to electronically tune the search coil to ignore
ground minerals. The small knob on top is a single-
turn coarse adjust with about twenty fixed positions.
The large 16-turn, fine tuning knob is on the bottom.
This control works in conjunction with all three
operating modes.
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