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AUDIO TARGET ID
Depending on the operating mode
and Disc/Notch control setting, the
Fortune Hunter emits three distinct
tones which classify metal objects into
categories.
IRON & STEEL:
In the ALL/METAL mode most iron
and steel objects will induce a medium
tone. Highly oxidized iron can induce a
high
tone,
in
discrimination,
depending on the Disc/Notch control
setting. For instance, some rusted
bottle caps will induce a high tone and
indicate to the right of the LCD target
display.
GOLD:
In DISCRIMINATION mode, gold
objects will induce a low or medium
tone, depending on their sizes. Very
small gold objects will indicate on the
left-most segment. Large gold objects
will read under the Zinc segment. If
you are gold prospecting, you will
usually be looking for natural gold in
an area which does not contain much
trash, and can therefore ignore the
specific segment descriptions.
LOW TONE
MEDIUM TONE
Nails & Bottle Caps,
Old & New Pull Tabs, Zinc
Pennies (Post 1982)
Gold & Nickel
Audio Target Identification (ATI) classifies metals into three categories.
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PULL TABS:
Pull tabs are the most bothersome
trash items for detectorist. Most will
induce a medium tone. Most will be
eliminated automatically in the AUTO
NOTCH mode, or alternatively be
manually "discriminated out" in DISC
mode with the Disc/Notch control. The
older pull tabs (those not attached to
the can after opening) are sometimes
broken in half; these broken tabs can
induce low tones. Highly oxidized pull
tabs can also induce high tones.
It can be very difficult to differentiate
pull tabs from gold rings. When they
both induce medium tones, you might
notice a "double beep" from a gold
ring but a "single beep" from pull tabs.
To achieve this distinction, sweep the
searchcoil very slowly, and at different
angles. Two tones might signal as the
detector passes over each side of the
round ring.
COPPER, SILVER & BRASS:
Most valuable coins are composed of
these metals and will usually induce a
high tone. Valuable objects other than
coinage can also be composed of
copper, silver and brass.
HIGH TONE
Copper, Silver & Brass
Copper Pennies (Pre 1982)
LCD TARGET DISPLAY
Please refer to the display on your
detector and reference the TARGET
I.D. categories below applicable to
your model (not all detectors include
all of these categories).
READING THE DISPLAY
The Liquid Crystal Display (LCD) shows
the PROBABLE identification of the
targeted metal, as well as the PROBABLE
depth of the target.
The detector will register a consistent
target identification, upon each sweep of
the coil, when a buried target has been
located and identified. If, upon repeated
passes over the same spot, the target
identification reads inconsistently, the
target is probably a trash item, or oxidized
metal. With practice, you will learn to
unearth only the repeatable signals.
The segment identifications are highly
accurate, when detecting the objects
described on the label. However, if an
object registers in a given category for
an unknown buried object, you could
be detecting a metallic object other than
the object described on the label, but
with the same metallic signature. Also,
the greater the distance between the
target and the coil, the less accurate the
target identification.
GOLD TARGETS Gold objects will register
towad the middle or left-of-center on the
LCD scale.
Gold flakes may register under iron.
Small gold items may register under foil
or 5¢.
Large gold items will register toward the
center of the scale.
SILVER TARGETS: Silver objects will
register to the right of the scale, under
dime or higher.
IRON: All sizes of iron objects will
register on the far-left side of the scale.
This could indicate a worthless item
such as a nail, or a more valuable
- motion modes only
historic iron relic.
FOIL: Aluminum foil, such as a gum
wrapper, will register as foil. A small
broken piece of pull tab may also
register here.
5¢: Most newer pull-tabs from beverage
cans, the type intended to stay attached
to the can, will register here. Many gold
rings will also register here.
ALUM: Older pull tabs, which always
detached completely from the can,
register here. Many medium size gold
ring also register here.
PT(pull-tabs):
Pull-tabs from older
beverage cans will register here. Few
newer pull-tabs will also register here.
Many gold rings will also register here.
S-CAP: Older screw caps from glass
bottles will register here. Large gold
rings, like a class ring, could also register
here. Some non-U.S. coins of recent
vintage will also register here.
Zinc: Medium conductivity objects and
many non-U.S. coins of recent vintage
are classified here.
The Target Identification Categories to
the right of the display, such as copper
coins, 10¢, DIME, 25¢, Quarter, 50¢, $1
accurately identify these U.S. coins.
When used in areas outside the U.S.,
these categories identify coins or metal
objects of high relative conductivity
(such as silver coins or relics), or large
objects made of any type of metal.
Caution: The target indications are visual
references. Many other types of metal
can fall under any one of these
categories. While the detector will
eliminate or indicate the presence of
most common trash items, it is
impossible to accurately classify ALL
buried objects.
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