Magna
and
Magna
Plus
INSTALLATION
INSTRUCTIONS
LITHO IN U.S.A.
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988-0106-42 EAGI
AND
OPERATION
F7jTM
i-low to
We
back
genuine
authorized
will
help you
Customer Service
Service Center are
Obtain Service
investment in
your
Eagle replacement
Eagle
find the
Service
Center.
your
surface carrier at no
Factory Repair
If
unit needs
your
use the
following
repair,
address:
Center nearest
closest
repairfacility.
Transportation
responsability.
charge.
and
quality products
If
parts.
you
need
you.
If
The
you
wish to
write or send a
with
quick, expert
service or
repairs,
The enclosed Service
desired, you
expenses
product
can contact the
to us or to the
will be returned to
product
service and
contact the
Center List
Factory
Authorized
you by
to the
factory,
EAGLE
Alt:
12000 E
ELECTRONICS
Service
Department
Skelly
Dr
Tulsa, OK 74128-2486
You can
Customer
technician
returning your
For the
When
do the
1. Use the
2.
3. For
call or write to an
Service
may
unit.
Eagle
factory
sending
following:
a
original
shipping your
Always
insure the
proper testing,
describing
address,
the
and a
Department
be able to solve the
product
product.
problem.
daytime
IMPORTANT: Be sure
product
if it is still in
authorized
before
Eagle
sending your
problem
customer service
to the
factory
box and filler
department,
or a service
material the
parcel against damage
and
repair,
warranty.
service,
Be sure
telephone
to include
to include
number.
proof
Service
Center or the
unit in for
and save
product
or loss
the inconvenience of
you
call
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we
center,
was
during shipment.
send a brief note
your name,
of
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repair.
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return
sending
in when
product
shipping
packed
with the
A
you
the
27
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boat must be
4. The
is
motionless,
lines.
fish
moving
stay
at
in the
aslowtrolling
cone,
showing
speed
on the
ELECTRICAL NOISE
A
sonar's
completely
cause of sonar
major
display
problems
as random
coverthe screen
or not at all.
To eliminate or minimize
cause. With the boat at rest in the
electrical
your
be a
equipment
turn onthe
turn the
all
noted,
If
you
or
power
interference.
certain to
unit's
If
certain
Increase the RPM with the
the
wiring. Try using resistorspark plugs,
power
the
supplied
equipment
then turn off ASP
on,
Magna
bottom
steady
the boat and view the effect on the sonar's
on
bilgepumpandviewthesonardisplayfornoise.
off,
pump
electrical
equipment
then turned
find noise interference from an electrical instrument,
radio, try
to isolate the
cable and transducer cable
VHF radio antenna
the sonar's wires
keep
powercable
no noise
problem
battery helps
displays
everything exdept
could be one of three
cable
away
eliminate noise
with the unit when
the effects of electrical
on the boat off. Make
signal
then turn on the VHF radio andtransmit.
has been turned
off.
directlyto
on the sonar unit from
from
engine wiring. Again,
is electrical noise. This
patterns
with black
on the
problem.
the
of dots or lines. In
dots,
the first
water,
(Advanced
display.
cables radiate noise when
away
battery
certain the
Now turn
on,
You can
from the
away
from it. You
to isolate
the sonar unit is turned
gearshift
in neutral. If noise
things;
spark plugs,
alternatorfilters,
problems.
wiring
the
Make certain to
power
to see fish arches. lithe boat
as
display
or cause the
noise,
thing you
Signal Processing).
on each
effect on the sonar
their
usually
wiring
may
it from
electrical
off,
the
routing
cable to the
straight
usually
appears
severe
unit
first
cases,
operate
determine the
to
try
should do is turn all
is
engine
off,
There should
piece
display.
For
If no noise is
Keep doing
motor,
trolling
re-route
the sonar unit's
that is
transmitting,
need to route the sonar
otherwiring
equipment,
then start the
appears
alternator,
or
routing
power
on the
ortachometer
the sonar unit's
cable
use the in-line fuse
battery.
horizontal
on the
It can
erraticly,
also. Turn
of electrical
example,
present,
this until
display
pump,
causing
on the boat.
then make
the
so
engine.
display,
directly
be
to
TABLE OF CONTENTS
INTRODUCTION
INSTALLATION
POWER CONNECTIONS
SPEED/TEMPERATURE SENSOR
KEYBOARD BASICS
DISPLAY
MENUS
OPERATION
AUTOMATIC
RANGE
ZOOM - Automatic
ZOOM - Manual
SENSITIVITY
GRAYLINE®
FISH ID
cHART5PEED
DISPLAY MODE
ALARMS
FISH ALARM
DEPTH ALARM
LAMP
FEET/METER
DISPLAy CONTRAST
ASP
(Advanced Signal Processing)
TRANSDUCERS AND CONE ANGLES
SIGNAL INTERPRETATION
FISH ARCHES
WATER TEMPERATURE
SURVEYINGALAKE
BAIT FISH
SONAR TROUBLESHOOTING
HOW TO OBTAIN
Operation
Operation
AND THERMOCLINES
SERVICE
1
2
3
4
5
5
6
6
6
7
8
9
9
10
11
12
14
14
15
16
16
16
17
18
19
20
21
23
23
24
27
When no noise
source is
noise
experience
orwhen the
water,
will be the location
be
must
Read
yourtransducer
appears
probably
make
in a location that has a smooth flow of water
placed
on the sonar unit after all of the
cavitation.
sonar installations which function
hasty
boat is at rest. In
and/or
angle
Many
all
nearly
cases,
of the transducer.
owners manual for the
above
novices or
persons
perfectly
the cause of the
The face of the transducer
at all boat
best
mounting
position.
then the
tests,
with limited
shallow
in
malfunction
speeds.
Copyright
All features and
All screens
©
1990,
All
rights
specifications
in
this
Eagle
Electronics
reserved.
subject
to
change
manual are simulated.
without notice.
26
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Weak
bottom
2.
Electrical noisefromthe boat's
the sonarto
This can cause the
from the
3.
The water
echo,
automatically
dispiay.
may
digital readings erratic,
unit to eliminate
be
deeper
sonarcan't find the bottom
flash
continuously.
are in. If
you
to a realistic
range
move into
you
it
this
may change
happens, place
one,
(for example,
shallower
water,
or no
fish
signals (cont.):
motorcan interfere with the sonar. This causes
increase its Discrimination or noise
weakersignais
than the sonar's
while it's in the
signal
the
range
such as fish or even structure
to find the bottom. if the
ability
automatic
to limits
fargreaterthan
the unit in the manual
0-100
a bottom
and increase the
feet)
should
signal
mode,
mode,
appear.
rejection
then
feature.
the
digital
the water
change
sensitivity.
will
the
As
4. Check the
also
drops, reducing
Bottom echo
bottom
1. The
flow of water
water
disrupt
other
targets.
2.
Electrical noise fromthe boat's motorcan interfere with
the
sonar to
battery voltage,
its
disappears
echo while boat is
transducer
may
in orderfor the sonar to work at
the sonar
The technical term for this is
automatically
This can cause the unit to
from the
and transducer cables
display. Try using
away
No fish arches when the
1. Make certain
problem
manual for more
2. The
sensitivity may
it has to be
arch,
until it leaves. If the
when it is in the
if a
transducer is
arch is
partial
information.
not be
able to receive the fish's echo from the time
sensitivity
center of the cone.
lithe
voltage drops,
to find
ability
at
high speeds
the bottom or
or
erratic
moving
be in turbulent water, It must be
all boat
signals, interfering
increase its Discrimination
eliminate
weakersignals
resistorspark plugs
with its
'Cavitation',
or
from other electrical
Fish ID feature is off:
pointing straight
displayed.
See the Fish Arch section in
high enough.
is not
high enough,
down. This is the most
In
orderforthe unit to
the unit's
targets.
transmitter
digital reading
mounted in a smooth
speeds.
ability
or noise
such as fish or even
routing
wiring
the unit
Air bubbles in the
to find the bottom or
the sonar. This causes
rejection
the sonar unit's
on the boat.
your
display
it enters the cone
displays
the fish
power
or weak
feature.
structure
power
common
owner's
a fish
only
3. Use the
in on a small
better luck
This
Zoom feature. it is much easier to
of waterthan a
range
fish arches with a 30
seeing
enlarges
the
targets, allowing
large
to 60 foot
the
display
fish
display
one. For
example,
range
to show much more
arches when zoomed
will
you
than a 0 to 60
have much
foot
detail.
range.
25
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IMPORTANT
SERVICE INFORMATION!
If
unit is not
your
troubleshooting
tomerservice
the How To Obtain Service section on
working,
section before
department. Itmaysave
or if
SONAR TROUBLESHOOTING
Unit won't turn on:
1. Check the
2. Make certain the
to the
positive battery
3. Check the fuse.
4. Measure the
11 volts. If it
on the terminals are
Unit
isn't,
freezes,
cable's connection at the unit. Also
power
power
terminal,
batteryvoltage
the
wiring
corroded,
locks
up,
or
need technical
you
contacting
cable is wired
black to
atthe unit's
a service center or the
youthetroubleof returning yourunit.
27 if
page
properly.
negative
powerconnector.
to the unit is defective,
orthe
operates
battery
needs
erratically:
help, please
need service.
you
The red wire connects
or
ground.
use the
check
factory
the
wiring.
It should be at least
the
batteiyterminals
charging.
following
cus-
See
orwiring
INTRODUCTION
Thank
is a
high quality
you
for
purchasing
sonar
fishermen. These units
the
displays
press
have to do
features available
To
get
This is
down the
bottom, fish,
the on
key. However,
is
press
started with
where it all
road. After
through easy-to-use
your Eagle
begins. Improper
an
designed
Eagle
for both
sonar. Your
have an automatic feature
structure,
if
the menu
you've
and morel All
wish to fine tune the
you
The
key.
first
unit,
installation
read the
read the rest of the manual. The more
it will
better
head for the
INSTALLATION
Mount the
ance when it's tilted for the best
base allow wood screw or
to
place a piece
the
panel.
the
power
perform
water.
Magna
Make certain there
and transducer cables.
for
in
any
of
plywood
Take this manual
you.
convenient
location, provided
viewing angle.
through
bolt
on the back side of thin
is
enough
or
and
Magna
novice
Magna
professional
that finds and
have to do is
you
all
unit,
has
Magna
menus.
series
powerful
read the installation section.
can cause
instructions,
know about
you
install the
problems
unit,
your
unit,
for reference when
there is clear-
Roles in the bracket's
It
mounting.
be
may
panels
necessary
to reinforce
room behind the unit to attach
Plus
you
then
the
you
1. Electrical
interfering
from other electrical
cable
2.
Inspect
3. Check both the transducer
securely plugged
Weak bottom
1. Make certain transducer is
transducer.
its effectiveness. If the transducer is mounted inside
shooting through only
hull. Do NOT use RTV
noise from the boat's
with the sonar unit.
wiring
to the
directly
battery
the transducer cable for
in to the unit.
echo,
digItal readings
Oil, dirt,
andfuel cancauseafilmtoformonthetransducer, reducing
one
silicone rubber adhesive or MarinetexN.
motor, trolling
may help.
through
breaks,
power
erratic,
24
the
connectors. Make certain both are
straight
Re-routing
on the boat
instead of
and
pointing
layeroffiberglass
motor,
powerand
Route the sonar
a fuse block or
or
cuts,
pinched
or no fish
down. Clean the face of the
and that it is
or an
accessory
transducercables
upit's power
ignition
wires.
signals:
the
securely
be sure it is
hull,
bonded to the
may
away
switch
be
Drill a hole in the dash for the
location for this hole is
the bracket covers the hole.
way,
and transducer cables can
can't
pass a power
immediately
pass
or transducer connector
transducer cables. The best
and
power
under the
gimbal
The smallest hole both the
inch.
through
is one
and another cable
1
bracket. This
power
However,
you
through
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a one inch hole.
connector
cable down from
power
over the
in the bracket.
POWER CONNECTIONS
The
run
cable
will
not
to it.
however,
page
hole,
Magna
the
power
away
the
give
long enough
You can attach the
you may
26 for more
Therefore,
up through
the hole from under the dash. Then
then route
Finally,
fasten
works from a 12
cable
directly
from other boat
best isolation from electrical
to reach the
have
information on electrical noise.
after
drilling
the
hole,
the transducer
pass
drop
the
the front side of the dash. Slide the bracket
the transducer and
cables out the
power
slots
the bracket to the dash.
volt DC
to the
wiring, especially
battery, splice
power
problems
system only.
boat's
cable to an
with electrical interference. See
battery. Keep
noise.
#18
accessory
For the best
the
engine's
If
the
gauge
results,
the
power
wires. This
supplied
insulated wire
or
cable is
power buss,
SURVEYING A LAKE
The most successful
it
after
day
spots
ence
want at
change
food,
With the
day
that
produce
where,
and at what
season. And
any
throughout
and other factors.
Magna,
and
year
fish
the
anyone
anglers
year depending
the areas where fish are
lake!
The most efficient
to
survey
it with
and indicate the
to
way
your Magna.
promising spots
on
any body
after
year.
consistently. They
depth, they
they
Eventually, they
can
realize that these
on water
can eliminate
to be. Even if it's the first time on
likely
become
guesswork
acquainted
Start with a
in relation to landmarks on shore.
of water are those who fish
learn the hot
discover
expect
map
through experi-
to find the fish
productive
level,
temperature,
and
concentrate on
with a
body
of the
lake,
they
areas
the
of water is
if
possible,
As
you go
type
about
your survey, your
of bottom. It will also reveal
Magna
suspended
will tell
fish.
you
the
depth
and
MACNA
BLACK
3
amp
FUSE
a few marker
Keep
the
Magna
school thus
exactly
a
you may
the
lake. Unless
big
not be able to find it
indicates a school of
marked,
right spot.
you
in
buoys
you
This is
the
boat,
fish,
can make
essential when
throw the
your
to toss overboard. When
ready
turn and come back to fish in
mark the school of fish when
again.
buoy
you're
out. With the
far from shore on
over
you're
it,
l2voLr
BATTERY
MACNA
PLUS
3amp
FusE
2
BAIT
FISH
The
importance
sized.
Bait
shad.
bluegill,
Most
promotes
of
ID feature
display. Usually, game
school of bait fish.
They
fish are the
Bait fish can also be the
and bass.
bait fish concentrate within five feet of the surface
fishing
of bait fish to successful
are the
the
growth
is to use the
off,
principle
plankton feeding forage fish,
of the
Magna
a school of bait fish will look like a "cloud" on
food of all
young
plankton
to find the
fish will be
fishing
game
of
game fish,
on which
bait
nearby,
23
can't
be
in
fish
such as
most waters.
minnows and
such as
feed. One method
they
fish
first. With the Fish
often
directly
over-empha-
crappies,
where
sunlight
the
beneath the
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These units have reverse
the
wires are attached
power
wires are reversed.
correctly.
polarity protection.
However,
the unit
No
damage
will occur if
will not work until the
e
SURFACE LAYER
ABSORBS HEAT
FROM THE SUN
EPILIMNION
at
THE RMOCLINE
pRoDucTivE
MOST
ZONE FOR FISHING
760
750
680
660
500
SPEEDITEMPERATURE
SENSOR INSTALLATION
-
Magna
Plus
Only
Mount the
where the
of turbulence
speed/temp
flow of water is the smoothest. There should be a minimum
and air bubbles in the chosen location. The
side of the transom is
can be used if
strakes,
the
speed
mounted six to twelve inches from the centerline of the hull. The
sensor must
necessary.
or thru-hull
ribs,
sensor. In a
always
the chosen location is in the water even
boat is on
Once
transom. Make certain the sensor's bottom is
plane.
determine the
you
the hull. Mark the transom in four
32"
mounting
hole at each location. Mount the sensor to the hull
four #10 stainless steel screws. Use a
pound
to seal the screws.
bottom of the hull and
sensor on the boat's transom in a location
port (left)
preferred,
however,
Do not mount the
fittings.
typical
These
installation,
be in the water to
proper
location,
the starboard
speed
will
disturb
the
speed
function
at
properly.
high speed
the sensor
place
(right)
sensor behind
the flow of water to
sensor
Make certain
or when the
on the
flush with the bottom of
Adjust
tighten
in
places,
two
good grade
the sensor so it is flush with the
the screws.
slot. Drill a 5/
each
of
caulking
side
is
com-
with
470
The
temperature
bottom.
warm and cool
thickness of the thermocline can
In
Thermoclines are
where fish are active.
thermocline while
The
ity
deep
Magna
will
probably
Layers
lakes there
of water in the lake is seldom constant from
of different
layer
may
important
larger game
temperatures
of water is called a thermocline. The
be two or more at different
to fishermen because
times bait fish will be above the
Many
fish will
can detect this invisible
have to be turned
22
form,
with the season
vary
suspend
in the
layer
to see it.
up
and the
or time of
depths.
they
in or
just
water,
junction
depth
are areas
below it.
but the
to
top
of a
and
day.
sensitiv-
If the base of the transom has a
transom and the sensor with
caulking compound.
radius,
fill the
between the
gap
This
a smooth water flow.
Route the sensor cable to the in-line connector on the
power
cable. The
speed/temp
sensor is now
3
ready
for use.
will
help
Magna
insure
Plus'
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KEYBOARD BASICS
The unit sounds a tone when
unit has
ON/CLEAR
Use this
menus from the screen.
accepted
key
a command.
to turn the unit on. It also clears menu selections and the
OFF
This
MENU
The
accessed with this
turns the unit off.
key
Magna
and
Magna
key.
Plus have
you press any key.
menus of features
many
This tells
the
you
that are
small fish
Very
show a
water.
partial arch,
Large
to see the arch.
clutter, thermoclines, etc.,
creased
One of the best
segment
the
segment,
to do
this on the
expands
results,
turn the
probably
fish will
Because of water
enough
to
ways
of the water. For
the better the screen resolution will be. The easiest
Magna
the
echoes,
sensitivity up
will not arch at all. Medium sized fish will
or a
arch,
fish arches.
get
to
get
similar to an arch if
shape
but turn the
conditions,
the
sensitivity
fish arches is to
example,
sensitivity up
from 45 to 60 feet. The smaller
is with the Zoom feature. This feature
making
it easier to see detail. For the best
as
high
as
much noise on the screen. In medium to
should work to
display
fish arches.
they're
such as
sometimes cannot be in-
expand
possible
without
deep water,
in
deep
in
deeper
heavy
water
surface
or "zoom" a
getting
this method
way
too
UP and DOWN ARROWS
Use these
unit. Use these
more.
keys
to
adjust virtually every
keys
to
adjust
the
feature and function on the
sensitivity,
L
NOTE: The
menus are
first make certain no menu is on the screen. Then
chart,
arrow
key.
top right portion
key again.
arrow
up
displayed.
also
key
In other
and starts
stops
words, anytime you
The chart will freeze and the word "STOP"
of the screen. To
start the
4
chart
speed, range,
LI
the chart when no
wish to
appears
chart, press
the
stop
press
up
and
the
the
at the
arrow
up
If
see fish
you
fish
get
sensitivity.
WATER
Water
temperature
the
activities of all fish. Fish are cold blooded and their bodies are
always
colder
the
water slows down their metabolism. At this
signals
symbols
TEMPERATURE AND THERMOCLINES
temperature
about a fourth as much food as
Most fish don't
spawn
narrow limits. The surface
Plus
helps identify
for
various
Bass and other
species.
remain too cold
temperature
tolerance than
which it tries to
the level that
most
comfortable here.
provides
when the unit is in the manual
when the Fish 1.0. feature is
has an
important-if
of
the
surrounding
they
unless the water
temperature
not
controlling-influence upon
water.
consume in the summer.
temperature
meter built into the
the desired surface water
Trout can't survive in streams that
fish
eventually
the summer. While some fish have a wider
during
stay. Schooling
this
die out when stocked in lakes that
others,
temperature.
each has a certain
fish
suspended
We assume
21
mode,
on, try increasing
During
time, they
is within rather
spawning temperatures
get
range
over
deep
they
but don't
the
the
winter,
need
Magna
too warm.
within
water lie at
are the
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FISH ARCHES
DISPLAY - General
Fish arches are created when the cone
The distance to a fish
below. When the center of the cone
shorter as shown "B". As the cone leaves the
increases
again
when the cone first strikes it is shown as "A"
as shown in "C".
BOATS DIRECTION OF TRAVEL
of sound
strikes the
passes
the distance is
fish,
the distance
fish,
over a fish.
The
Three menus
(LAMP),
(DARK/LIGHT).
switch from feet
menu
menu to
the down arrow
onds. If
menus
When the
one below.
is on. The
example,
display
flash for
lights
appear,
feet-meter
appears.
appear.
don't
you
from the screen.
Magna
The unit is in the automatic mode and
depth range displays
the
range
shows
at the
about ten seconds when the
one after the other. The menus
selection
To turn the
to
meters,
To
adjust
Now
to
lighten
want to
is first turned
is from 0 to 60 feet. The
top
(FEET/METER),
lights
the down arrow
press
the
contrast,
the
press
it. The menus
left
up
wait,
press
on,
on the left side of the screen.
portion
on,
press
wait for the
arrow
the ON/CLEAR
the
display appears
of the screen.
LI—-
373FT
4-C
Magna
and contrast
the
up
key
to darken
key
disappear
the Fish ID feature
digital
is turned on.
are the
arrow
when the
DARK/LIGHT
after
key
bottom
lights
adjustment
To
key.
proper
the
screen,
a few sec-
to clear the
similar to the
In this
depth
a.
.1
A
When the Fish l.D. mode is
size and
example,
displayed
cone diameter and the
shape
if the cone
on the
fish arch due to the cone
of the
passes
Magna may
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1
B C
the
off,
over a fish in shallow
not arch at
resolution limitations of the
20
of the water will affect the
depth
angle
all. This is due to the narrow
diameter. For
the
water,
display.
signal
MENUS
The
Magna
functions and features. The
allowing you
conditions.
press
simply press
screen.
and
to
All
the menu
the ON/CLEAR
Magna
customize the unit to
you
key repeatedly.
Plus
have to do to leave one menu and enter another
.'n'..l
use menus to
menu
key
If
you
This clears the menus from the
key.
5
guide you through
accesses these
your particular
ever
get
lost
needs and
in
the unit's
features,
water
is
the menus,
Menus
change depending
on
the automatic mode is turned
"AUTO
menu
selections.
SENS" to "MAN SENS." Other
boxes or new menus can
the mode the unit is in. For
the
off,
sensitivity
messages may
appear, again depending
menu
changes
appear
example,
from
in
on
previous
if
Both 8
ings,
model. This is because
ber,
degree
even
the shallow
rest of the
and 20
though
signal
degree
the bottom
of the
edge
tells
you
transducers
signal
are
you
signal
whether
accurate bottom read-
give
is much wider on the 20
seeing
more of the bottom. Remem-
shows
are over
you
you
the
true
rocks, mud,
depth.
degree
The
etc.
OPERATION
AUTOMATIC
When
the
Magna
automatic feature is enabled. This feature
automatically adjusts
sensitivity according
always keeps
in the lower
To turn the automatic feature
menu
appears.
This
until the AUTO/MAN
key
Now
highlights
is now in the manual mode.
is first turned
the unit's
the
on,
range
to water conditions. It
the bottom
portion
press
the letters "MAN." The unit
depth displayed
of the
screen.
the down
Wait a few
off,
menu
arrow
press
and
the
key.
seconds and the menu will scroll off the
screen's left side.
Pressing
the automatic feature on
time
RANGE
You
Magna
adjustable
mode,
in
the manual mode. Now
CLEAR
press
SEL"
current
menu. In this
Now
the
range,
the
range.
press
can't
the
adjust
up
the
arrow
range
is in the automatic mode. It is
when the unit is in the manual
however. To do
to clear the screen. Then
key
the menu
menu
range
the
press
appears
until the
key
as shown.
shows at the bottom of the
the
case,
arrow
up
the down arrow
After
select the desired
you
the ON/CLEAR
again, repeat
key.
when the
first
so,
range
key
put
the ON/
press
"RANGE
The
is
60 feet.
to decrease
increases
key
the
the unit
key
above
AUTO
also
clears it. To turn
steps,
except
this
SIGNAL INTERPRETATION
Your
Magna
passing.
fairly
down,
absorbs the sound
sensitivity
Big
A bottom
wide
signal.
then it means
to see a better bottom
rocks or
stumps
bottom level
height.
line
A
returned from a
As
you pass
extending
steep slope
an accurate
gives
firm
of
If
sand, gravel, shell,
the automatic mode is off and the
that
you
wave and returns a weak
on a smooth bottom send back
signal.
The
height
over a
above the bottom
returns a wide
underwater cliff are
high
picture
of the bottom that
or hard
clay
signal
boat is
your
returns a
narrows
have moved over a mud bottom. Mud
of the
post,
signal.
signal,
signal.
signal depends
it should be
the
steeper
usually
signal.
Turn
signals
on the
clearly
visible as a short
the wider.
the widest of all.
the
up
above the
target's
Signals
6
19
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TRANSDUCER CONE ANGLES
The sound
cone
The
Eagle
cone
cone
ideal for
cone
feet of water the 20
The 8
The 20
water,
ment, (300
angle
smaller
waves from the transducer
shaped
angle
beam. This looks much like the beam from a
between the outside
edges
spread
of the cone is the cone
offers a choice of transducers with either an 8 or 20
angle.
angle. Typically,
angle
The transducer
operating
allows
degree
degree
the 8
degree mostly
feet - fresh
supplied
wide cone
in shallow to medium water
to see more of the underwater world.
you
degree
transducer covers
transducer is almost
cone covers an area about
in salt water. In a
water,
100 feet
is more desirable. Since the sound
area,
it can
penetrate
to much
with the
transducers
angle
about a two foot circle.
only
always
the best to use
-
salt
water)
energy
deeper depths.
out into the water in a
flashlight.
angle.
degree
Magna
depths.
has a 20
(20 degrees)
The 20
degree
are
degree
In 15
six feet across.
in fresh
water environ-
deep
narrow cone
the
is concentrated
in a
range, press
seconds,
ZOOM
The zoom feature
the automatic
the ON/CLEAR
it will
automatically
enlarges
mode,
key
clear.
all echoes on the screen.
it tracks the bottom
the bottom of the screen. This
time
enlarging
track the bottom in the manual
different.
Zoom - Automatic
To zoom the
ZOOM menu
echoes that
all
Operation
display,
appears.
first
Now
press
press
the unit into the zoom mode.
shown on the
right.
to clear the
signal, always keeping
lets
appear
mode,
the
see small
you
on the screen. The unit doesn't
and the
MENU
down arrow
the
A new menu
If
display.
wait a few
you
If the unit is in
at the same
detail,
adjustments
until the RANGE/
key
key.
immediately appears
are
slightly
This switches
it near
as
RANGE
50'
100'
Zoom size is the distance between the
The
limit shows at the
upper
top
left
limit is in the bottom left corner. For
40 feet and the lower limit is 70
word "TRACK"
window,
always keeping
appears
Magna
it on the
feet,
in this
the
is
7
20 DEGRE:
18
150'
200'
8 DEGREE
This is the zoom size menu.
limit and the lower limit.
upper
corner of the screen. The lower
example,
if the
upper
limit is
zoom window size is 30 feet. The
menu when
tracking
display.
the bottom in a zoom
first activate the zoom. This means the
you
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Press the
zoom
size,
increase the zoom size.
When the unit is switched into the
mode,
arrow
up
press
key
the down arrow
the letters "ZM"
to decrease the
key
zoom
appear
at the
of the screen. The zoom window size
displays
screen.
To turn the zoom feature
menu
appears.
This switches the unit into the
feature off.
in the
key
top right
until the
Now
press
corner of the
press
range
the
key.
mode,
off,
RANGE/ZOOM menu
the
up
arrow
to
C
3IAFT
ZOOM
SIZE
top
wa
2OFT
C
which turns the zoom
ZM-—2O
•-
To
until the DARK/LIGHT menu
decrease
Press the
contrast. The bar
menu box shows a
The screen will also show the effects of the
change.
minimum
to the
cally
the ON/CLEAR
the
adjust
limits. The menu will clear automati-
after a few seconds or
contrast, press
it,
up
If
you
level,
the down arrow
press
arrow
key
graph
graph
reach the maximum or
atone sounds
to
key
the menu
appears.
key.
to increase the
in the
Dark(Light
of the contrast.
alerting you
can
you
clear the screen.
key
To
press
Zoom - Manual
To
operate
first
press
RANGE/ZOOM menu to
in the zoom mode. The zoom size menu
automatically appears
change
the zoom size
or down arrows. After
desired zoom
until the
This menu lets
window
by
can move the zoom window
the
anywhere
where
bottom
"MOVE ZOOM" menu
up
pressing
surface,
you put
signal.
To turn the zoom feature
ZOOM menu
the unit into the
Operation
the zoom feature
the menu
or down in one foot increments
the arrow
down to the
in between. The window
key.
size,
press
move the zoom
you
keys.
it. It doesn't track
appears.
mode,
range
when the
Then
press
the
place
next. You can
by pressing
select the
you
the menu
bottom,
off,
Now
Magna
the
key
appears.
Thus,
you
towards
up
or
stays
the
the
press
the
press
which turns the zoom
the down arrow
up
up
Magna
menu
key
arrow
is in the manual
key
__________________
C
ZM——EO
mode,
in the
344FT
C
____________________
until the RANGE/
This switches
key.
feature off.
ASP
(Advanced Signal Processing)
ASP is a
Magna's
designed
monitors
determines which echoes are noise and
rejects
echoes to
minimum of clutter. This feature is
cially
operate
controls. When
enabled. To turn ASP
ASP menu
arrow
seconds or
program
computer
to eliminate noise. It
the
them.
display
useful
the boat at all
to turn it off. The menu will clear
embedded in the
that is
signals
since it
appears.
you
from the
This allows true
on the screen with a
typically
speeds
the
Magna
off,
Now
can
press
specifically
continually
receiver,
target
espe
lets
you
without
or
Magna
press
press
Plus is first turned
the menu
the
up
the ON/CLEAR
.i—
—J;;
___________________
adjusting
arrow to turn it on or the down
automatically
the
sensitivity
key repeatedly
after a few
to clear the screen.
key
ASP is
on,
until the
or other
8
17
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LAMP SENSITIVITY
The
Magna
backlighted
backlights
repeatedly
Now
on or the down arrow to turn
menu will clear
seconds or
to clear the screen.
key
FEET/METER
The
Magna
depth
can also show
Fahrenheit or
miles
and
Magna
for
night
on or
oft, press
until the
the
press
up
automatically
can
you
and
Magna
in feet or meters. The
temperature
Celsius,
hour or
per
Plus'
use. To turn the
the menu
LAMP menu
arrow to turn the
the ON/CLEAR
press
Plus can show the
speed
and distance
knots,
display
them off. The
after a
Magna
in
degrees
in statute
is
key
appears.
lights
few
Plus
(log)
in statute miles or nautical miles. When
either unit is in the metric
readings, ranges,
settings
the feet
are in meters. When a unit is
mode,
zooms,
all of the above
mode,
all
and alarm
settings
depth
in
are
in feet.
To
change
the FEET/METER menu
to
metric,
the unit is first turned on. The menu will clear
seconds or
from feet to meters or
appears.
the
arrow to switch to feet.
up
you
can
the ON/CLEAR
press
vice-versa, press
Press the
Displays
key
373FT
I LAMP
______
___________
FEET
the menu
down arrow
in feet when
show
automatically
to clear the
ect
key
to switch
key
after a few
screen.
a-:
until
The
sensitivity
oes. A low
fish
signals,
features,
wanted
solid bottom
The
on the
This
situations
the
detail,
signals. Typically,
Magna adiusts
screen. It adds a little extra when it's in the automatic
gives
sensitivity
so
menu lets
sensitivity
and other detail.
but it can also clutter the
signal
level excludes
with
the
it the
capability
occur where it becomes
level.
Typically,
need to increase the
you
control the unit's
you
High sensitivity settings
the best
grayline.
sensitivity
to show fish and other
this occurs when
ability
much of the bottom
screen with noise and other un-
sensitivity
level to
necessary
sensitivity.
level shows a
a
keep
to increase
The
it is the same whether the unit is in the automatic
To
change
the menu
appears.
menu shows "AUTO SENS."
the
sensitivity
until the
key
If the unit is in
sensitivity
first
level,
menu
automatic,
Otherwise,
press
the
It—-
37•3FT
the menu shows "MAN SENS." Now
the
press
sensitivity,
A
vertical bar
shows the
scrolling
effects of the
reach the maximum or minimum
a tone sounds
level,
limits.
After
you've adjusted
ON/CLEAR
automatically
up
arrow
to increase the
key
the down arrow to decrease it.
in the menu box
graph
sensitivity
onto the screen will also show the
sensitivity change.
level. Echoes
sensitivity
alerting you
to the
If
you
the unit to the desired
to clear the
key
clear.
display.
If
you
iSENS
na
sensitivity level, press
wait a
to
pick up
information,
lets
solid bottom
detail.
wish to see more
you
procedure
see
you
good,
signal
mode.
However,
or
decrease
to
or manual mode.
AUTO
few
seconds,
ech-
adjust
the
it will
DISPLAY CONTRAST
The unit's
tions. This will
various times
display
contrast is
help you
of the
day.
adjustable
the screen from different
see
to suit different
16 9
lighting
angles,
condi-
or at
GRAYLINE°
Grayline
"paints" gray
shows the difference
smaller
muddy,
lets
you distinguish
on
targets
or rocks and brush
ones,
or
weedy
bottom returns
between
that are
between a hard or soft
strong
stronger
than a
on the bottom. For
a weaker
signal
and weak echoes. It
preset
bottom,
level. This
fish versus
large
example,
which shows a
a
soft,
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narrow or no
causes a wide
If
have two
you
without,
guish
Grayline®
and weak
setting.
To
the MENU
appears.
increase the
the
fish from
change
Now
is
echoes,
the
key
decrease it. The bar
menu box shows the
in use. Echoes
line. A hard
gray
line.
gray
targets
with
target
structure,
adjustable.
changing
Grayline level,
until the
the
press
the down arrow to
level,
graph
level of
scrolling
of
gray
will also show the effects
If
change.
minimum
reach the maximum or
you
a
level,
tone sounds
to the limits.
The level chosen
first turned on is
with
unit to find the
your
the
by
usually adequate
bottom returns a
stronger
larger
press
menu
key
Grayline
one
fish from
may require
to
now
equal size,
is the
or the
Since it shows the difference between
the level
first
Grayline
arrow
up
in
the
Grayline
strong signal
with
gray
echo. This
a smaller one.
a different
and the other
helps
onto the screen
of the
Grayline
alerting you
when
Magna
Grayline selling
it's
for
most conditions.
that's best.
Experiment
that DEPTH
The
depth
echoes will activate these
distin-
shallow and
when the bottom
alarm sounds a tone when the bottom
strong
sensitivity
Both alarms
Shallow Alarm
To set the shallow
key repeatedly
menu
to increase the
decreases it. The number in
alarm's menu box shows the current
shallow alarm
reaches the desired
arrow
remove the shallow alarm menu from
screen. Now when the bottom
shallower than the alarm's
tone
sounds. At the same time the alarm
sounds, a message
ALARMS
alarms are
alarm. The shallow
deep
goes
the
adjust
alarm,
until the "SHAL ALARM"
appears.
Press the down
depth,
setting.
setting,
Press the ON/CLEAR
key.
box
triggered only by
alarms. The
the bottom
alarms consist of a
depth
alarm sounds an alarm tone
shallower than the alarm's
goes
deeper
same,
although through
the menu
press
arrow
the
up
arrow
key
key
the shallow
When the
appears
number
release the
to
key
the
depth goes
setting
an alarm
on the screen as shown below.
signal.
selling.
than it's
No other
The
setting.
different menus.
deep
FISH ID
FEATURE
The Fish ID feature identifies
fish.
The
micro-computer analyses
clutter, thermoclines,
stances,
symbols
four
relative size between
symbol
a
larger target,
The
distinguish
submerged
outwards from a
remaining targets
on the screen in
symbol
sizes:
when it thinks a
micro-computer
between fish and other
floats,
and other undesirable
are
place
tiny, small, medium,
targets.
target
etc.
is
sophisticated,
air
bubbles,
of limbs are
group
targets
that meet certain conditions as
all echoes and eliminates surface
signals.
fish. The Fish ID feature
of the
actual fish echoes. There are
and
large.
In other
is a
small
words,
it
a medium fish
fish,
In
These show the
displays
but it can be fooled. It can't
objects
such as
for the Fish ID
suspended
etc.
Individual tree limbs
the hardest
10
objects
most in-
displays
a small fish
symbol
turtles,
extending
on.
373FT
SHAL
ALARM
MUTE
a
-
-
60
Alarm
Deep
The
"DEEP ALARM"
signal goes
deep
alarm
deeper
act
.e-c
.
-
-
adjusts
menu to
than the
Press the
alarm. This will turn the alarm
until the shallow alarm is
To turn the alarm
until the shallow alarm
Then
press
word "OFF"
the same as the shallow
the
adjust
setting,
15
arrow
up
key
off, press
the
deep
arrow
up
appears.
alarm. Use the
alarm. When the
an alarm tone
to silence the
sound off
triggered again.
the menu
menu
appears.
until the
key
bottom
sounds.
key
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DISPLAY
DIG
This is the
shows the
the screen
sha!low and
displayed
chart shows on this screen.
MODE
1
(Digital #1)
first
digital depth
in
deep
beneath the
(cont.)
digital only
very large
alarm
digital depth.
display
numbers. The
settings
screen. It
at the
are
top
No
DEPTH FT
[60.8]
SHAL ALM
I
of
L
I
L
OFT
DEEP ALM
OFT
feature to
screen
Fish ID feature is on and off to
When the
ID
feature
To turn this feature
until the Fish
shown below.
key.
back
the
distinguish
in
when,
Magna
is
automatically
ID
This turns the
on,
repeat
arrow
up
key
from fish. You
are no fish. Practice with the unit when the
there
fact,
is first turned
turned
off,
press
feature's
Now
the above
instead.
menu
the down arrow
press
feature off. To turn it
steps,
see Fish ID
may
become more familiar with Fish
the Fish
on,
also.
on,
the menu
appears
key
as
373FT
symbols
FISH
ID
but
press
on the
ID.
2
DIG
(Digital #2)
The
digital depth display
of this screen in
digital temperature, speed,
beneath the
when the
When the
very large digits.
depth.
Magna
Magna
Plus is first turned on.
Plus is turned
shows at the
The
log
and
starts
is reset to zero.
ALARMS
FISH ALARM
The Fish Alarm sounds a tone
symbol appears
fish
alarm,
ALARM"
"FISH
screen. Now
turn the alarm on.
on the
press
menu
press
to turn the fish alarm off.
ID feature is
turn the fish alarm
you
off,
screen. To use the
the menu
appears
the
up
Repeat
will
it
be turned on
on.)
key
arrow
the above
(Note:
top
The
shows
log
counting
the
off,
when a fish
until the
on the
log
to
key
steps
If the Fish
when
14
DEPTH FT
[38.3]
TEMP °F
I
L
ISPEED
L
I
L
76.8
MPH
33.8
LOOMI
81.9
The Fish
Magna
the automatic feature
feature
CHART SPEED
The rate echoes scroll across
adjustable by pressing
____________________
ID
feature
is in the manual
will
afflomatically
IC---
'373FT
CHART
SPEED
To
from the screen
CLEAR
a menu is
arrow
word "STOP"
portion
press
the
stop
chart,
key.
displayed.
The chart will freeze and the
key.
of the screen. To start the
the
up
can't be used when the
4Ct
first clear
by pressing
You can't
appears
arrow
key again.
mode. If
the
off,
be turned
the menu
•1
stop
Now
press
at the
turn
you
Fish ID
also.
off,
the screen is called the chart
until the chart
key
appears.
when the
decrease
Press the
speed
Speed
speed.
will also show the effects
If
you
level,
Chart
Magna
it,
press
arrow
up
again.
menu box shows a
reach the maximum or minimum
an
The bar
Echoes
warning
speed
is set to maximum
speed
is first turned on. To
the down arrow
to increase the
key
graph
scrolling
onto the screen
of the
tone sounds.
C—
373FT
—
menu
any
the ON!
the chart while
the
up
top right
chart,
11
speed.
menu
in the Chart
of the
graph
change.
-STOP
It's
key.
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DISPLAY MODE
DISPLAY MODE
(cont.)
The
Magna
six. To
(Display Mode)
until the desired mode number
MACNA ONLY
CHT
This is the default mode
Magna
features:
ing
1.
Automatic On
2. Fish ID Feature On
3.
Digital Depth Display
CHT 2
This is the
shifts the chart
scrolling
following
1.
Automatic Off
2. Fish ID
3.
Digital
has three different screen
change
1
(Chart #1)
is
first turned on.
(Chart #2)
High Speed
echoes at a
features:
Feature Off
Depth Display
modes,
menu
speed
press
appears.
used when the
It has the follow-
On
Scroll mode, It
into
high gear,
rate. It has the
high
Off
modes. The
the MENU
Then
press
appears.
Magna
until the "DISP MODE"
key
the
The modes are as follows:
or down arrow
up
37_3FT
Plus has
keys
t.ct
oIsP
MODE
CHT1
-.
n'%fl 'r
MACNA PLUS ONLY
CHT 1
This is the default mode
Magna
following
1. Automatic On
2. Fish ID
3.
(Chart #1)
Plus is first turned on. It has the
features:
Feature On
Dig'dal Depth
Display
211——
373FT
oIsP
MODE
used when the
On
tt
e-c
3IAFT
743°F
t4.c
-
CHT 3
Same
display.
(Chart #3)
as Chart #1
plus digital speed
CHT 2
Same as Chart #1
water
(Chart #2)
temperature display.
plus digital
C
surface
ZM——20
3III4FT
47MPH
C
speed
Scroll mode. It
into
high gear,
rate. It has the
high
Off
DIG 1
(Digital #1)
This is the
digital depth display
screen in
and
beneath
on this screen.
deep
the
digital only
very
large
alarm
settings
digital
depth.
screen.
at the
numbers. The shallow
It shows the
of the
top
are
displayed
No chart shows
12
DEPTH FT
[60+8.
SHAL ALM
I
I.
I
L
OFT
DEEP ALM
OFT
60
, ____
4
CHT
This is the
shifts the chart
scrolling
following
1. Automatic Off
2. Fish ID Feature Off
3.
(Chart #4)
High Speed
echoes at a
features:
All
Digital Displays
13
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