transducer cable needs to be ex-
tended longer than 10 feet,
the
depth
sounder and transducer
will need to be returned to the
factory for re-alignment.
1vo other transducers are avail-
able for your EAGLE depth
sounder. Model XD-2 is a high
speed plastic unit that can be
transom mounted or can shoot-
thru-hull. It works well on deep
vee hulls and aluminum boats.
The other transducer
(Model
XD-3)
is for trolling motor
mounting or shoot-thru-hull.
Fig. 3
XD-3 Ji
A special bracket is available for
the XD-2
transducer that will

put

it below
the severe cavita-
tion layer
that is sometimes
present
on aluminum boats. The
model number for
this bracket is
XMB-2.
1. Mounting inside the hull is
recommended for fiberglass
hulls in an area that does not
have air bubbles in the resin
or separated fiberglass layers.
The sonar
signal must pass
through
solid fiberglass.
A
successful transducer installa-
tion can be made on hulls
that have flotation materials
(such as wood or foam) in be-
tween layers of
fiberglass if
the material is removed from
the chosen area. For example,
some manufacturers use a
layer of
fiberglass, then a core
of balsa wood, and then the
outer layer
of fiberglass. By
removing
the inner layer
of
fiberglass and the balsa wood
core, the outer layer
of
The signals returned
from a rocky
bottom
are quite
confusing
when you first see
them. The EAGLE's
dial will indicate the
level of the bottom at
the correct depth, but
it will also show clear
thin signals above and
below the wider main
bottom signal. This is
explained by the fact
that the rocks near the
outer edge of the cone
of sound waves are
farther from the
transducer than those
in the center, while
the tops of the latter
are closer than the
bottom.
This drawing also
shows
the typical sig-
nals indicating a
school of
white bass or
bluegills at a depth of
twenty feet. The sig-
nals are brighter
than
those returned
by bait
fish.
3 16
Fig. 2
SIGNALS RETURNED BY A ROCKY BOTTOM
XD-2
SHOOTING THROUGH THE
HULL
Fig. 20
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