Depth And Target Display - Fisher F44 Owner's Manual

DEPTH & TARGET DISPLAY
The display shows the PROBABLE
RE DING THE DISPL Y
identification of the metal detected, as
well as its PROBABLE depth.
The detector will register a target upon
each sweep of the searchcoil, 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. With
practice, you will learn to unearth only
the repeatable signals.
Target-ID numbers, as indicated on the
Coin Reference chart (page 17), are
highly accurate when those items are
detected. However, there are many
other metallic items that will register
within these groups, so identification is
not always accurate. Multiple targets
in close proximity to each other,
especially if one is above the other in
the soil matrix, can display non-typical
ID and Depth, or "mask" out the
deeper target altogether. The greater
the distance between the target and
the searchcoil, the less accurate the
target identification.
Depth indication in the Pinpoint mode
is accurate on coin-sized objects as
defined in the category groups, but it
too can be inaccurate if multiple targets
of varying depth and conductivities are
in close proximity of each other.
GOLD TARGETS Gold objects will
generally register in the "GOLD" group
with smaller items in groups 2 & 3 and
larger items in groups 4 & 5. Gold
flakes will register under iron.
SILVER TARGETS: Silver objects will
register in the "Silver" group, A U.S.
dime will ID in group 6, a US quarter in
group 7, a U.S. half dollar in group 8
and a U.S. dollar in group 9.
All sizes of iron objects
will register on the far-left side of the
1-19.
scale. This
worthless item such as a nail, or a
more valuable historic iron relic.
Aluminum foil, such as
a gum wrapper, will register as foil. A
20-29.
small broken piece of pull tab may
also register here.
newer pull-tabs from beverage cans,
30-39.
the type intended to stay attached to
the can, will register here. Many gold
rings will also register here.
gold rings also register here. A few
40-49.
newer pull-tabs and many gold rings
will also register here. S-CAP: Older
screw caps from glass bottles and
large gold rings (like a class ring)
could also register here. Some non-
U.S. coins of recent vintage will also
register here.
could indicate
U.S. Nickels, most
Many medium-sized
a
19