Turn On Procedure - Fisher M-Scope Gold Bug 2 Operating Manual

TURN ON PROCEDURE

Figure 8.
The threshold signal is a soft
background tone heard when
operating the Gold Bug-2, is set
by adjusting a metal stem at the
rear of the control housing.
at the maximum sensitivity and LOW MINERALIZATION settings.
2. Hold the search coil waist high, away from any
nearby metal.
3. Turn the VOLUME control to 10. A short, loud
squawk is normal at turn-on, so if you're wearing
headphones, start the volume at 0 and let the audio
settle down before you increase it to a level that's
comfortable when the coil is passed over a large
or shallow target.
NOTE: If your headset has volume controls, set the
volume control on your Bug to "10" and your headset
volume to zero. Then adjust your headset volume
controls to a comfortable level when the coil is
passed over a large or shallow target.
4. With the search coil still in the air, rotate the
THRESHOLD control on the back of the control
housing until you hear a very faint, continuous signal.
This is the audio threshold tone you'll need to hear
while hunting to maintain optimum performance
from your Gold Bug-2.
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1. Set your controls as follows:
MODE: NORMAL
MINERALIZATION: LOW
SENS: 10
GROUND REJECT: 10
VOLUME: OFF
NOTE: You will probably find
that most of your searching will
be done with the MODE and
MINERALIZATION switches set
to NORMAL and the SENSITIVITY
control set at something less
than 10. If you're working in
unfamiliar ground, however, we
recommend that you try starting
SEARCHING
mode, however, will ignore most hot rocks and small
a ferrous objects while responding to gold and other
nonferrous objects.
10. You can also use the IRON DISC mode to identify
many buried targets that produce a good, strong
signal. Once you have zeroed in on a target, switch
to IRON DISC and pass the coil over it. If you still get
a response, dig it.
NOTE: Keep in mind that the IRON DISC mode is not 100-percent
accurate. Small and/or deep nuggets giving faint target responses
will often be ignored in the IRON DISC mode. Conversely, large
iron objects, like a railroad spike, may produce a good signal in
the IRON DISC mode. Remember, when in doubt, dig!
PINPOINTING
Always use the same procedure to pinpoint with the Gold Bug-2,
regardless of control settings. With a little practice you'll be able to
zero in on most targets quickly and accurately. Use this procedure:
1. Once a buried target is indicated by the "beep" of
the Gold Bug-2, continue sweeping the search coil
from side-to-side, narrowing the search pattern.
2. When you have narrowed the sweep as much as you
can and still hear the target, stop the search coil.
3. Now move the search coil forward and then straight
back toward you a couple of times. Stop the search
coil over the area where you get the strongest
response.
4. Move the search coil slowly side-to-side one more
time, stopping at the loudest target response.
5. Your target should be below the "HOT SPOT" of the
search coil, which is marked with a bull's eye.
6. Slowly move the coil aside, keeping your eyes on the
spot where the HOT SPOT was, and quickly mark the
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