INTRODUCTION
Thank
you for selecting a water-
proof
EAGLE depth sounder. We
believe that it is the finest unit
available today, manufactured
right here in
the U.S.A. to preci-
sion tolerances.
lb fully enjoy the advantages
this equipment brings to you, we
suggest that you read this man-
ual thoroughly before any at-
tempt
at installation or use of
this product.
Please fill out the warranty
card
and mail it to EAGLE ELEC-
TRONICS. This will register
your 1 year FULL
warranty.
We suggest that
you keep the
original carton that the EAGLE
was shipped in, so that if it ever
needs to be returned to the fac-
tory
for repairs,
a suitable con-
tainer will be available.
POWER CONNECTIONS
Power for the depth sounder is
supplied by the boat's 12-volt DC
electrical system. Power may be
picked up at an accessory or
power buss, but if
you have prob-
lems with electrical interference,
which is indicated by extraneous
flashes on the dial, it can be
minimized
by connecting power
directly to the battery (See
Figure 1.)
If a longer power cable is re-
quired, use ordinary #18 lamp
cable available at any hardware
or electrical supply store. Splices
should be soldered. If this can't
be done, use crimp-type splices.
Simple twisting
of
splices may
result in intermittent
power
connections which can cause in-
terference. 'Ihpe all splices with
electrical tape.
FISH SIGNALS
Here are some things that will
help you understand the signals
that are displayed
on your
Eagle: A big fish returns a wide
signal while a small fish returns
a narrow one. A school of bait
fish or minnows,
nearly always
near the surface, returns a great
many thin, rapid signals. Wide
signals beneath
indicate the
game fish which are often pres-
ent under the school of little fel-
lows to feed on them.
If
you are cruising at three miles
per hour while hunting fish with
your Eagle, a single fish 30 feet
deep will return a signal for ap-
proximately
one second. (Three
miles per hour is 4.4 feet per
second and the diameter of the
circle covered by
the transducer
is approximately
four feet at
that depth.) The signal returned
by a fish 15 feet deep would
last
half a second,
and from a fish 60
feet deep the signal would
last
approximately
two seconds.
This is a good point to remember
because fish often school in a
horizontal plane, sometimes
rather widely scattered in that
exact level, but not all vertically,
and a signal
that lasts longer
has to be made by more than one
fish. Of course, fish suspended at
different levels, even if
only a
few inches higher or lower in the
water, will return different sig-
nals at the
corresponding depths
on the dial.
Remember, many kinds of game
fish like sharp drop-offs, rocky
ledges,
and underwater cliffs.
But, as your boat moves across
these spots, the Eagle will be
unable to show the fish because
the sloping
bottom sends back
such a wide signal.
Many kinds of fish remain sus-
pended between the water sur-
face and bottom
during hot
weather. Crappies
will usually
lie at a uniform
depth
similar to
a horizontal blanket in the
water.
A
big school may extend 100 feet
in each direction and as you pass
over it you will get an almost
constant signal, plus other flash-
ing a few inches above and be-
low. A school of white bass isn't
likely to cover such a big area as
a school of
crappie sometimes
does, especially in the summer
and fall. The signals will show
these fish occupying a greater
spread vertically (8 to 10 feet).
The larger game fish such as
bass and walleye
aren't likely to
be so tightly grouped
as white
bass, crappie,
or other panfish,
and the individual members,
being larger, return stronger
signals.
1 18
SPECIFICATIONS
Dimensions with knobs and gimbals . 711 x 8W x 61)
Dial 0-60 (outer), 0-360 (inner)
Voltage 12 volts D.C. (operates
10-15
volts)
Current
Drain 250 ma., one echo
Pulse Width 200-1000 cs, adjustable
Output
Power 200 watts peak to peak
(typical)
25 wafts RMS
4AMP FUSE
Fig. 1
To
12 Volts DC
(Positive)
Ground
(Negative)
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