Fisher Labs Gold Bug DP, Руководство пользователя

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GOLD PROSPECTING
Gold Prospecting continued on next page
In the United States, gold is found in many places in the
western states, Alaska, and in a few localities in the
Appalachians. The old saying "Gold is where
you find it," means that to find gold, you
should look in areas where the yellow
metal is known to be present.
Hillsides are the best areas for
gold prospecting using a
metal detector, because
hillsides cannot be
cleaned out by panning
and dredging the way
streams can. Also,
gold on hillsides, not far
from its source vein,
tends to be larger, and hence more
readily detected, than alluvial (placer)
gold which tends to get pounded to
pieces and worn away as it rolls along
the streambed with gravel during floods.
Gold is valuable because it is a scarce
commodity. Even in a good gold producing
area, you will often spend an entire day
without finding any gold. Meanwhile you
will dig bits and pieces of other metal--
birdshot, shells and bullets from hunting and target
practice, bits of rusted barbed wire, chips off shovels and other mining tools,
rusted tin cans, etc. Hot rocks -- rocks containing concentrations of iron
oxides that sound like metal when you pass over them -- are also a nuisance
in many gold areas. Discrimination is usually ineffective because the loss of
sensitivity resulting from discrimination is enough to cause those little nuggets
to vanish. If you have gone many hours without finding gold and are
wondering if there is something wrong with your metal detector or how you are
using it, the most important clue is this: if you are digging tiny pieces of trash
metal, then if gold were present you would have found small gold pieces too!
CONTROL PANEL
CONTROL KNOBS:
1. OFF/ON/GAIN
a. Click right to turn on. Click left to turn off.
b. Turning the knob clockwise increases the detector’s sensitivity; the
higher the sensitivity, the deeper targets will be detected, and the more
likely the detector will be to detect very small targets.
c. As you turn the knob, notice that the GAIN value at the bottom-right of
the screen displays your current sensitivity setting.
Sensitivity in DISC mode
The left knob is labeled “GAIN” and in DISCRIMINATION mode it alone
controls the sensitivity of the detector.
GAIN in ALL-METAL mode.
In All-Metal mode, GAIN increases as you rotate the knob clockwise.
THRESHOLD is controlled independently using the right knob.
2. DISC / ALL-METAL / THRESHOLD
a. Click knob to the far-left “DISC” position and the detector enters
DISCRIMINATION mode.
b. Click on clockwise to operate in ALL-METAL mode.
c. In ALL-METAL mode, rotate knob to increase the threshold.
Threshold values range from -40 to +40.
In ALL-METAL mode, the Threshold control can be used in two ways.
Control knobs continued on next page