13
AUDIO TARGET ID
Depending on the operating mode
and Disc/Notch control setting, the
Quick Draw II emits three distinct
tones which classify metal objects into
categories.
IRON & STEEL:
In the DISCRIMINATION mode most
iron and steel objects will induce a low
tone. Highly oxidized iron can induce a
high tone, 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:
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 it does not contain much trash,
and can therefore ignore the specific
segment descriptions.
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 “notched out” in NOTCH
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
search coil 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.
Audio Target Identification (ATI) classifies metals into three categories.
LOW TONE
Nails & Bottle Caps,
Gold & Nickel
MEDIUM TONE
Old & New Pull Tabs, Zinc
Pennies (Post 1982)
HIGH TONE
Copper, Silver & Brass
Copper Pennies (Pre 1982)
8
LCD TARGET DISPLAY
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, in inches.
Pass the search coil repeatedly over a
target, and observe the target readout.
The detector will register a repeated,
unchanging target identification 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. For example, if
you pass the coil repeatedly over a nickel,
your detector will repeatedly register a
nickel. However, if you repeatedly register
a nickel, for an unknown buried object,
you could be detecting some other
metallic object with the same magnetic
signature as a nickel.
GOLD TARGETS
Gold objects will
register on the left side of the LCD scale.
Gold flakes
will register under Iron/Foil
Small gold items
will register under Pull
Tab.
Medium-sized gold items
will register
under S-caps.
Large gold items
will register as Zinc 1¢.
SILVER TARGETS:
Silver objects will
register to the right of the scale, under
25¢, 50¢, or $1, depending on the size
of the object. The larger the object, the
farther to the right it will register.
IRON/FOIL:
All sizes of iron and
aluminum 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 historic iron relic.
PULL TAB:
All older pull tabs from
beverage cans will register here. Most
newer pull tabs will register here. Many
gold rings will also register here.
S-CAPS:
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.
1¢ ZINC:
Newer pennies (post-1982)
will register here. Many non-U.S. coins
of recent vintage will also register here.
10¢:
Dimes and pre-1982 pennies will
register here. Older, pre-1982, pennies
are composed of copper, which has a
metallic signature similar to a dime.
Caution:
The target indications are
visual references. Many other types of
metal can fall under any one of these
categories. You will experience a
trash-to-treasure ratio when treasure
hunting. The more you practice, the
lower you will push your trash-to-
treasure ratio. While the Quick Draw II
will eliminate or indicate the presence
of most common trash items, it is
impossible to accurately classify ALL
buried objects. The LCD provides a
visual reference to minimize the
detection of trash objects. By using the
target ID in conjunction with
discrimination control and the three-
tone audio identification system
(discussed later), you can further
reduce the trash-to-treasure ratio.
