TREES IN THE
WATER
The
signals
on the
dial
shown here indi-
cate an underwater
tree
with a few fish
above it.
The water
is
50
feet
deep,
the tree
20 feet
tall,
and the
fish
are between ten
and 13
feet
deep.
Limbs at
various
depths
return indi-
vidual
signals
and ac-
count for
the wide
band of
signals
on the
dial. Brush
appears
similar,
though
not so
tall.
Bass
and
panfish
often
hang
around
submerged vegetation,
not
only
near the
sur-
face
but down
to
depths
of 25 or
30
feet,
depending
on the
thermocline
To detect
them,
anchor
bow and
stern
so
your boat
can't
move. Constant
signals
indicate tree
limbs.
Signals
that
come and
go
or shift
up
and down
are fish
—
limbs don't
move.
IMPORTANT
When
installing
the
power
cable,
make certain that the in-line
fuse
supplied
with the unit is at-
tached to the red conductor of
the
power
cable as close to the
power
source as
possible.
This
will
protect
both the unit
and
the
power
cable in case either is
ever shorted. A connector is
supplied
to attach the fuse to the
power
cable.
The
positive
conductor in the
power
cable is
the red conductor.
The unit is
protected
from acci-
dental
polarity
reversals
and no
damage
will result
if
battery
connections are
wrong.
However,
the unit will not work.
MOUNTING
The
depth
sounder can
be in-
stalled in
any
convenient loca-
tion which has a flat surface.
The
adjustable yoke permits
mounting
on either a bottom or
overhead
supporting
surface. If
the unit is to be located in the
vicinity
of a
compass,
run it in
position temporarily
to make
sure it does not affect
compass
readings.
If
compass heading
changes,
choose an alternate lo-
cation.
Note: the
unit must
be
running
when
you
make this
test. Holes in the base of the
bracket allow wood screw
or bolt
mounting.
Thread both
knobs
partially
into
the
mounting bushings
on
the
case. The
gimbal
bracket
has
slots in the
top
of it that allows
the unit to
"snap"
in
without
removing
the
gimbal
knobs.
These
slots will clear the
threads
of the
gimbal knobs,
but not the
mounting bushing
on the case.
2
The bracket sides will have to be
spread slighlty
to clear the
gim-
bal
bushings,
but will return
to
their
original position
when re-
leased. Holes in the
gimbal
bracket
align
with the
gimbal
bushings
on the case and will
not allow the unit to come off
even in severe wave conditions.
Th remove the
unit, simply
loosen the
gimbal
knobs, spread
the bracket sides
away
from the
case,
and
pull
the unit
up
and
out of the bracket.
TRANSDUCER
INSTALLATION
IWo different
mounting
methods
are available to install
your
EAGLE
transducer,
either
transom mount or shoot-thru-
hull.
Although
the transom
mount will work on most
hulls,
we recommend that the shoot-
thru-hull method be used
only
on solid
fiberglass
hulls. The
transducer
signals
will
penetrate
single
thicknesses of
fiberglass,
but will not
go through porous
materials such as
wood or foam.
The
signals
also will not
pass
through
air
pockets
or voids in
the
fiberglass
laminations. Re-
gardless
of which
mounting
method is
used,
the
installation
should
be made in an area that
has minimum
water
turbulence,
air
bubbles,
and where
the water
is
the smoothest.
The transducer
cable should be
routed
away
from other electri-
cal
wiring.
Do not cut the
trans-
ducer cable if it
is too
long.
In-
stead,
coil it and
store the excess
in
an unobtrusive area.
IIans-
ducer extension
cables Model
TEC-lO are
available that will
extend the cable 10 feet. If
the
Fig.
21
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