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BEACHCOMBING: The
1IDB
and 2/DB
are
designed to
be used in
areas
of wet
or
dry
sand, and
salt
or
fresh water.
The loop is
completely waterproof.
By
setting the
Discriminate Control to cancel out the effects of saltwater, your detector
can
be
us-
ed
to find many valuable items lost
in
swimming
areas
and
the land which surrounds
them.
A
basket with
a
3/8" mesh
will
aid you
in
the recovery of your treasure. Scoop
the target bearing sand into the basket
in
order to
sift
the sand out, allowing the
ob-
ject to
remain.
PROSPECTING: The
object
here is
to locate
an
area
with gold, silver,
or
similarly
valuable metals. Gold nuggets
or
gold dust
are
usually found along with
a
highly
mineralized
"black sand".
You
can
either
pan
for gold dust,
or,
tune out the ''black
sand" effect with the Discriminate Control set
in
the "ground reject"
area,
enabling
you
to hunt for nuggets.
An
excellent place to search
is in
a
stream
bed,
wash,
or
dry
creek
bed.
Especially good places
are
downstream from known mining
and mineral
areas.
Your
TR
instrument
is
perfect for identifying hot rocks
and
can
be used
for
ore
sampling.
TIPS FOR INCREASING YOUR SKILL
1.
"How
deep
will it
go?' Depth
capability
is
determined
by
five factors:
a.
The SIZE
of the object.
b.
The SIZE of
the detector's loop.
c.
The LENGTH OF TIME
the object
has been buried.
d.
The SKILL
of the operator.
e.
The AMOUNT OF MINERALIZATION in the
ground.
The
longer
an
object
has been buried, the easier it
will
be
to detect.
A
chemical
reac-
tion called
a
''halo'' effect
may
cause
your detector to register
a
much larger
in-
crease in
volume than might otherwise
be
expected from
a
small coin.
If
the effect
is
strong enough, your detector
may
continue to register
even
after
you have dug up
the coin.
.
2.
"What will
the detector
locate?"
Silver, lead, copper, gold,
bottle
caps,
tin foil, pull
tabs, cartridge cases, rings,
brass, and
tin
cans,
are
just
a
few of the
numerous
conductive objects which
can
be
detected. Your detector will not locate sticks, rags, bones, paper, wood
or
other non-metallic objects.
3.
Learn how
to interpret different types of responses from your detector,
in
both
its "ground reject" capacity
and
its discriminator capacity. Although
many
objects
may
sound similar, with experience you
will
begin to
identify the
par"-
ticular
sounds of both
"good"
and
"junk"
items.
4.
When using
your detector with the Discriminate Control set to reject junk,
you
will encounter problems with ground mineralization.
Here
are
two search tech-
niques to help compensate for
this
problem.
a.
QUIET ZONE TECHNIQUE:
In
order to
use
the
"quiet
zone" technique to help
eliminate false ground signals,
you must operate
your detector just barely
below its threshold tuning point. Tuned
in
this
way, the
detector will
have
no
sound until
a
metal object
is
detected. However, you must
be very
careful not
to go too far into the
"quiet
zone"
or
the detector
will
lose most of
its
sen-
sitivity
and depth
capability. First, turn the detector
on,
place the loop
'/2
"
off
the
ground, and tune for
a
threshold tone.
Then,
readjust the Tuner
very slow-
Iy
until the tone just
goes away.
Keep
the loop about
'/2
"
off
the ground and
begin searching,
occasionally checking to
make
sure
the detector
is
still
operating
just
below threshold.
b.
SCFlUB
TECHNIQUE: The purpose
of this technique
is
to
keep
the loop
in
con-
stant contact with the ground's surface
in
order to avoid false signals and
loss of depth. This method works quite well
on
areas
of smooth lawn
or
flat
ground. Begin by
turning the detector
on
and
placing the loop directly
on
the
I7
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