Eagle Magna II, Magna II Plus INSTALLATION AND OPERATION INSTRUCTIONS

p

Magna

II

and

Magna

II

INSTALLATION

INSTRUCTIONS

LITHO

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IN U.S.A.

988-0106-56

EAGI

AND

Plus

OPERATION

1TM

TABLE

OF CONTENTS

INTRODUCTION

INSTALLATION POWER

SPEEDTrEMPERATURE KEYBOARD

DISPLAY MENUS

OPERATION

AUTOMATIC

RANGE

ZOOM ZOOM

SENSmVITY GRAYLINE®

FISH CHARTSPEED

DISPLAY ALARMS FISHALARM

DEPTHALARM LAMP

FEET/METER DISPLAY

ASP

SIDE SIDE SCAN

SIDE

MENU SUMMARY

TRANSDUCERS

SIGNAL

FISHARCHES

WATER TEMPERATURE

SURVEYINGA

BAIT FISH

SONAR

CONNECTIONS

-

Automatic

-

Manuai

ID

(Advanced

SCAN

SCAN-ALARM

INTERPRETATION

TROUBLESHOOTING

. 1

BASICS

Operation

MODE

CONTRAST

Signal

Processing) 17

-

RANGE

AND CONE ANGLES

LAKE

SENSOR

AND THERMOCUNES

2

3 4

5 5

6 6

6 7

8 9

10

11

12

14 14

15 16 16

16

Is

18 19

19 20

21

22 23

25 25

26

Copyright

All features

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and

All screens in

©

All

specifications

1990

1991,

rights

subject

this manual

Eagle

reserved.

to

Change

are simulated.

Electronics

without notice.

4. The boat must be

is motionless,

lines.

ELECTRICAL

A

majorcause

sonar's

completely

or not at all.

To

cause. With the boat electrical

your Magna be a

equipment

turn on the

turn the

all electrical

noted,

display

coverthe screen with black dots,

eliminate or minimize the

equipment

steady

on the boat and view

bilge pump

pump

then turned off.

moving

fish

stay

NOISE

of sonar

as random

then turn

on, bottom

signal

then turn on the

off,

equipment

at a

slowtrolling speed

In the

cone, showing

problems

at rest in the

on the

and viewthe

has

is electrical

patterns

effects of electrical

boat off. Make certain the

off ASP

on

been turned

of dots or lines. In

water,

(Advanced Signal

the

display.

the effect on the sonar's

sonardisplayfor

VHF radio and transmit.

seefish arches. lithe

to

on the

display

noise. This

or cause the unit

noise,

the first

thing you

Now turn

their effect

on,

Processing).

on each

noise. If no

as

straight

usually appears

severe

cases,

operate erraticly,

to determine the

first

try

should do is turn

is

engine

off,

There should

of electrical

piece

display.

on the sonar

For

noise is

Keep doing

boat

horizontal

on the

it can

Turn

also.

example,

present,

this until

display

all

INTRODUCTION

Thank

is a

men. These units bottom, fish, structure,

However, menu

easy-to-use

To

get

where it all

is road.

for

you

purchasing

high quality

if

you

The

key.

menus.

started with

begins. Improper

After

you've

sonar

have an automatic feature

wish to

Magna

your Eagle

read

of the manual. The

perform

water.

for

INSTALLATION

you.

Take

an

designed

Eagle

for both

sonar.

and more! All

fine tune the

series has

first read the installation

unit,

installation can cause

the

instructions,

more

know about

you

this manual for

Your

Magna

professional

that finds and

to do is

have

you

all

unit,

powerful

you

features available

install the

your unit,

reference when

II or

Magna

and novice

displays

the on

press

have to do is

section. This

problems

then read the rest

unit,

the better it will

head for the

you

II Plus

fisher-

the

key.

the

press

through

down the

If

find noise

you

or

radio,

cable and transducer

power interference.

certain to

unit's

power noise

If no

certain

the

wiring. Try using resistorspark plugs,

power the

supplied

everything

Increase the RPM

problem

cable

battery helps

When no noise noise source

experience

orwhen

water,

be the location and/or

will must be

Read

yourtransducer

interference from an electrical instrument, trolling

to isolate the

try

VHF radio antenna

the sonar's

keep

cable

directly

displays

with the

could be one of

from

away

eliminate noise

with the unit when

appears

is

probably

make

hasty

the boat is at rest.

in a location

placed

problem.

cable

cables radiate noise when

wires

away

to the

battery

the sonar unit from electrical

on

the sonar unit is turned off,

except

gearshift

three

things; spark plugs,

engine wiring. Again, routing

problems.

the

wiring

sonar unit after all of the above tests,

on the

cavitation.

sonar installations

In

of the transducer. The face

angle

that has a smooth flow of water

owners manual

You can

from the

away

from it. You

to Isolate

in neutral.

alternatorf

power

Many

all

nearly

for the best

28

wiring

may

it from

If noise

liters,

the

the cause

mounting

re-route

need to route the sonar

otherwiring

equipment,

then stall

appears

alternator,

or

routing

power

the

usually

Make certain to

cable to

novices or

which function

cases,

motor,

the sonar unit's

that Is

transmitting,

on the

pump,

causing

so be

on the

then make

the

engine.

display,

ortachometer

the sonar unit's

cable

use the in-line fuse

battery.

persons

perfectly

directly

then the

with limited

in shallow

of the malfunction

of the transducer

at all boat

position.

speeds.

the

boat.

to

Mountthe

Magna

when it'stilted wood screw or

of

piece

plywood

II in

forthe

through

Make certain there

transducer cables.

Drill a hole

location

the bracket

transducer cables

a

power

in

the

for this hole is

covers the hole. The smallest

or transducer connector

convenient location,

any

bestviewing

bolt

angle.

mounting.

on the back side of

is

enough

dash for the

can

room behind the

power

immediately

through

pass

under the

is one inch.

and another cable

1

clearance

providedthere

is

Holes in the bracket's base allow

It

thin

be

may panels

necessary

to reinforce the

unitto attachthe

and transducer

gimbal

hole both the

However,

cables. The best

bracket. This

through

you

to

place

panel.

power

can't

a one

a

and

way,

and

pass

inch

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hole.

Therefore,

through from

the hole from under the dash.

the front side of the dash.

the transducer

fasten

the bracket to the dash.

after

and

drilling

power

the

hole,

pass

Then

the

transducer connector

drop

Slide the bracket overthe

cables out the

slots in the

the

power

hole,

bracket.

cable down

up

then

route

Finally,

Weak bottom

echo,

digital readings erratic,

2. Electrical noisefromthe

the sonar to This can

from the

automatically

causethe unit to eliminate

display.

or no fish

boat's motorcan interfere with the sonar. This causes

increase its

Discrimination or noise

weakersignals

such asfish oreven structure

signals (cont.):

rejection

feature.

POWER The

wn the

away

CONNECTIONS

II

Magna

works from a 12 volt DC

cable

power

from other boat

directly

wiring,

the best isolation from

enough

attach the

have

information

to reach the

cable to an

power

problems

with

on electrical noise.

BLAcK

12 VOLT

BATrERY

battery, splice

system

to the boat's

especially

electrical noise. If the

#18

gauge

3

amp

FUSE

or

MAGNA II

accessory

electrical interference. See

only.

battery. Keep

the

engine's

supplied

insulated

power buss, however,

Forthe best

the

wires.

results,

power

This will

cable is not

wire to it. You can

you may

28 for more

page

cable

give long

3. The water

sonar

can't find the bottom

flash

continuously.

are in. If this

you

to a realistic

range

move into

you

4. Check the also

drops, reducing

Bottom echo bottom echo while boat Is

1. The

transducer

flow of water in water

disrupt

other

targets.

2.

Electrical noisefrom the boat's motorcan interfere with the

the

sonar to

This can cause the unit

from the

and

No

display. Try using resistorspark plugs

transducer cables

fish arches when the Fish ID feature Is

be

may

battery voltage.

disappears

deeper

It

may change

happens,

one,

shallower

its

may

order for the sonar to work at all

the sonar

The

technical term for this is 'Cavitation'.

automatically

than the sonar's

while it's in the automatic

signal

(for

example,

water,

ability

at

be in turbulent water, It must be signals,

increase its

to eliminate

away

the

range

the unit in the manual

place

0-100

a bottom

If

the

voltage drops,

to

find the bottom or

high speeds

moving

interfering

Discrimination or noise

weakersignals

from other electrical

ability

to limits

and increase the

feet)

should

signal

or erratic

boat

with its

such as fish oreven

or

routing

wiring

off:

the unit's

targets.

ability

to

find the bottom. If the

the

mode,

fargreaterthan

mode,

appear.

transmitter

digital

the water

then

change

sensitivity.

digital reading

mounted in a smooth

speeds.

Air bubbles in the

to find

the bottom or

sonar. This causes

re]ection

the sonar units

on the

boat.

will the

As

power

or weak

feature.

structure

power

MACNA II

PLUS

1. Make certain

problem

manual for more

2. The

sensitivity may

it has to be able to receive the

arch,

3

amp

FUSE

2

until it leaves. ft the

when it is in the center

3. Use the Zoom in on a small better luck This

enlarges

if a

partial

range

seeing

transducer is

arch is

information.

sensitivity

pointing straight

displayed.

not be

high enough.

is not

fish's echo from the time it enters the cone

high enough,

of the cone.

feature, It is much easierto

of waterthan a

fish arches

the

targets, allowing

large

with a 30 to 60 foot

the

down. This is the

See the Fish Arch section in

In orderforthe unit to

one. For

display

the unit

display

example, you

range

to show much more

displays

fish arches

than a 0 to

27

most common

owners

your

the fish

range.

detail.

a fish

only

display

when zoomed

will have much

60 foot

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IMPORTANT

SERVICE INFORMATION!

If

unit is not

your

troubleshooting

tomerservice the How To Obtain Service section on

SONAR

working,

section

department.

TROUBLESHOOTING

or if

before

Unit won't turn on:

Check the

1.

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 check

power

terminal,

batteryvoltage

the

wiring

corroded,

locks

up,

or

need technical

you

contacting

It

save

may

cable is wired

black to

atthe unit's

to the unit is

or the

operates erratically:

a service center or the

thetrouble

you

29 if

page

properly.

negative

powerconnector.

defective,the battery

battery

needs

help, please

of

need service.

you

The red wire connects

or

ground.

use the

factory

returning yourunit.

the

It should be at least

terminals

charging.

wiring.

following

cus-

See

orwiring

These units have reverse

wires are reversed.

power are aft ached

SPEED/TEMPERATURE SENSOR INSTALLATION

Magna Mount the

the flow of

correctly.

II Plus

Only

speed/temp

water is the smoothest. There should be a

polarity protection.

However,

sensor on the boat's transom

the unit will not

turbulence and air bubbles in the chosen location.

transom is

the

if

necessary.

hull

fittings.

a

typical

preferred,

Do not mount the

These will disturb the flow of

installation,

however,

the

speed

from the centerline of the hull. The

function

at

high speed

Once

you

properly.

determinethe

Make certain the chosen

or when the boat is on

proper

the starboard

sensor behind

speed

sensor is

sensor must

plane.

location, place

Make certain the sensor's bottom is flush with the the transom in four

places,

two

in

each slot.

at each location. Mount the sensorto the

screws. Use a

the sensor so it is flush with the

Adjust

screws.

good grade

of

caulking compound

No

damage

work until the wires

in

The

(right)

strakes, ribs,

water to the

mounted six to twelve inches

always

location is in the water even

the sensoron thetransom.

bottom of the hull. Mark

Drill a 5/32"

huH with four#1 0 stainless steel

to seal the screws.

bottom of the hull and

will occur if the

-

a location

port

side can be used

speed

be in the water to

mounting

where

minimum of

side of

(left)

orthru-

sensor. In

hole

tighten

the

1. Electrical noise from the boat's

interfering

from other electrical cable

2.

3. Check both the transducer and securely

Weak

1. Make

transducer.

its effectiveness. If the transducer Is mounted inside the

shooting through only

hull. Do NOT use RN silicone rubber adhesive

with the sonar unit.

directly

Inspect

to the

the transducer cable for breaks, cuts,

plugged

bottom

echo, digital readings

certain transducer is

Oil, dirt,

wiring

battery

in to the unit.

andfuel can cause afilmto form onthe

one

layer

motor, trolling

Re-routing

on the boat

instead

of

power

pointing straight

of

fiberglass

the

power

may help.

through

a fuse block or

connectors. Make

erratic,

and that it is

26

or an

motor,

andtransducer cables

Route the sonar unit's

or

pinched

or no fish

down.

Clean the lace of the

transducer, reducing

securely

or Marinetexm.

accessory may

ignition

wires.

certain both are

sIgnals:

be sure it is

hull,

bonded

away

power

switch

to

be

the

If the base of the transom has a

and the sensor with

water flow.

Route the sensor cable

cable. The

speed/temp

caulking compound.

to the in-line connector on the

sensor

radius,

is now

3

fill the

This will

ready

between the transom

gap

insure a smooth

help

Magna

Plus'

for use.

power

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KEYBOARD BASICS

SURVEYING A LAKE

The unit sounds a tone when

has

accepted

ON/CLEAR

Use this

menus from the screen. OFF

This

key

MENU

The

Magna

accessed with this

a command.

to turn the unit on. It also clears menu selections and the

key

turns the unit off.

II

and

Magna

key.

II

Plus have

UP and DOWN ARROWS Use these Use these

keys keys

to

adjust virtually every

to

adjust

the

you press any key.

menus of features

many

feature and function on the unit.

sensitivity,

chart

speed, range,

This tells

the unit

you

that are

and more.

The most successful

after

day that

produce

and at what

season.

the

year depending

With the

and

day

fish

depth, they

And

they

Magna II,

anglers

year

consistently. They

realize that these

on water

anyone

the areas where fish are

The most efficient survey

it with

indicate the As

you

type Keep

the

Magna

school exactly

lake. Unless

big may

about

go

of bottom. It will also reveal

a

few marker

thus

the

right spot.

not be able to find it

way

your Magna

promising spots

your survey, your Magna

buoys

II

indicates a school of

marked, you

This is essential

mark the school of

you

on

any body

after

year. Eventually,

of

discover

can

expect

level,

can eliminate

to

likely

to become

Il. Start with a

to find the fish

productive

temperature,

guesswork

be. Even

acquainted

map

if

in relation to landmarks on

suspended

in the

boat,

ready

throw the

fish,

can make

again.

turn and come back to fish in

your

when

fish when

water are those who fish it

learn the hot

they

through experience

they

areas

change

and other factors.

food,

and

concentrate on

spots

where,

want at

throughout

any

it's the first time on the lakel

with a

of

the

II will

fish.

lake,

tell

of water is to

body

if

possible,

shore.

the

you

depth

and

to toss overboard. When

out. With the

buoy

far from shore on a

you're

over

it,

you

BAIT FISH

NOTE: The are

displayed.

up

arrow

key

In other

also

and starts the chart when no menus

stops

words, anytime you

make certain no menu is on the screen. Then

chart will freeze and the word "STOP"

screen. To

the

start the

chart, press

appears

the

up

4

-'I

wish to

the

press

at the

arrow

I

the

arrow

chart,

key.

stop

up

top right portion

key again.

first

The

of

The

importance

sized.

They

Bait fish are the

shad. Bait fish can also be the

bluegill,

Most bait fish

promotes fishing

feature

Usually, game

and bass.

the

is to use the

off,

bait fish.

of bait fish to successful

are the

growth

principle

plankton feeding forage fish,

concentrate within five feet of the surface where

of the

Magna

a school of

fish will be

food of all

young

plankton

II

to find the bait fish first. With the Fish ID

bait fish will look like a "cloud" on the

nearby,

often

fishing

game

of

game fish,

on which

directly

can't be

fish in

most waters.

such as minnows and

such as

feed. One

they

beneath the

25

over-empha-

crappies,

sunlight

method of

display.

school of

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DISPLAY - General

SURFACE LAYER

ABSORBS HEAT

FROM THE SUN

EPILIMNION

THERMOCLINE

MOST pRbDucTIvI

ZONE FOR FISHING

VARIES IN DEPTh

DUE TO WIND.

750

560

The Three menus

(LAMP), (DARK/LIGHT).

from feet to

appears. appear.

to

lighten

to

wait,

Whenthe

below. The unit is depth range displays

range

top

flash for about ten seconds

lights

appear,

feet-meter selection

To turn the

meters,

To

adjust

Now

press

it. The menus

the ON/CLEAR

press

II

0

to

of the screen.

is from

left

Magna

portion

the

is first

in

60 feet. The

when the

Magna

II is turned on.

one after the other. The menus are the

(FEET/METER),

lights

down arrow

the

press

the

contrast, arrow

up

key

disappear

key

turned

on,

the automatic

on,

press

wait for the

to darken the

after a few seconds. If

to clear the menus from the screen.

the

display appears

mode and the Fish ID feature is on. The

and contrast

arrow

the

up

when the

key

DARK/LIGHT menu to

screen,

key.

the down arrow

you

sirnilartothe one

on the left side of the screen. In this

bottom

digital

depth display

El-

373FT

4C

lights

adjustment

To switch

proper

menu

don't want

example,

the

shows at the

500

470

The

temperature

bottom. warm and cool thickness of Ihe thermocline can

deep are

Many

will The

ity

Layers

lakes there

important

times

suspend

Magna

will

probably

of water in the lake is seldom

of different

of water is called a thermocline.

layer

be two or more at different

may

temperatures

to fishermen because

bait

in or

II can detect this invisible

will be above the thermoclinewhile

fish

below it.

just

have to be turned

with the season

vary

are areas where fish

they

layer

to see

up

24

form,

in the

it.

constant from

and the

junction

The

depth

or time of

depths.

Thermoclines

are active.

larger

but the sensitiv-

water,

game

top

of a

day.

to

and

In

fish

MENUS

The

Magna

functions and features. The menu

to customize the unit to

you All

you

key repeatedly. CLEAR

II and

Magna

II Plus use

your particular

have to do to leave one menu and enter another is

If

key.

ever

you clears the menus from the screen.

This

lost in the

get

menustoguide youthroughtheunit's

accesses these

key

needs and water conditions.

menus, simply press

features,

press

allowing

the menu

the ON/

5

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Menus

automatic mode is turned SENS"

new menus can

OPERATION

AUTOMATIC When the

automatic feature automatically adjusts sensitivity according

always keeps

the lower

change depending

"MAN

to

SENS." Other

appear, again depending

Magna

II

is enabled. This

bottom

the

portion

of the screen.

on

off,

is first turned

the unit's

to water conditions. It

depth displayed

To turn the automatic feature

menu

pears. highlights

in

the manual mode. Wait a

menu will

the

Pressing

Toturnthe automaticleature time

until the AUTO/MAN menu

key

Now

the down arrow

press

the letters "MAN." The unit is now

few

off the screen's

scroll

the ON/CLEAR

the

press

up

arrow

key

on

key.

mode

the

sensitivity

messages may appear

range

the

on,

feature

and

unit is in. For

menu

on

in

off,

seconds and

also clears it.

again,

the

press

ap-

This

key.

side.

left

repeattheabove

____________________

example,

changes

from "AUTO

in menu boxes or

selections.

IJ TO

MAN

steps, except

lithe

't

this

small fish

Very

a

partial

fish will

Large

arch. Because of water thermoclines, etc.,

see fish

you

symbols

to

enough

One of the best segment

segment,

this on the

echoes, sensitivity up

screen. In medium to

fish arches.

If

fish

ity

probably

or a

arch,

fish arches.

get

of the water. For

the better the screen resolution will be. The easiest

Magna

making

it easier

as

high

signals

when the Fish 1.0. feature is

will

shape

but turn the

the

to

ways

II is with the Zoom feature. This feature

as

possible

deep

when the unit is in the manual

not arch at all. Medium sized fish will show

similar to an arch if

sensitivity up

conditions,

sensitivity

fish arches is to

get

example,

such as

sometimes

from 45 to 60 feet. The smaller the

they're

in

deeper

heavy

cannot be increased

to see detail. For the best

without

water,

getting

this method should work to

on,

too much noise on the

try increasing

in

deep

water to see the

surface

expand

or "zoom" a

results,

mode,

expands

but don't

the sensitiv-

way

turn the

water.

clutter,

to do

the

display

get

RANGE

You can't

It is

adjustable

however. To do

mode,

the manual mode. Now

keytoclearthescreen.

until the "RANGE

key shown. The current

bottom of the menu. In this

is

60 feet.

decrease the increases the

desired

clear the

it

range, press

will

display.

automatically

the

adjust

when the unit is

Now

press

range, range.

If

you

clear.

range

so,

press

Then

SEL" menu

range

the

the down arrow

After

the ON/CLEAR

wait a few

when the

first

Magna

in

the manual

the unit in

put

the ON/CLEAR

pressthe

appears

shows at the

the

case,

arrow

up

you

key

select the

key

seconds,

6

II is in the automatic mode.

menu

as

range

to

key

to

WATER Water

the activities of all fish. Fish always

colder

about a fourth as much food as

Most fish don't narrow

helps identify various

Bass

too cold tolerance

stay. Schooling provides

here.

TEMPERATURE

temperature

the

temperature

water slows down their metabolism. At this

spawn

limits. The surface

the desired surface water

species.

and other fish

during

than

this

Trout eventually

the summer. While some fish have a wider others,

fish

temperature.

AND

THERMOCLINES

has an

important-if

are cold blooded and their bodies are

of the

surrounding

they

unless the water

temperature

can't survive

die out when stocked in lakes that remain

each has a certain

suspended

over

We assume

23

not

controlling-influence upon

water.

consume

temperature

meter built into the

spawning temperatures

in

streams that

range

water lie at the level that

deep

are the most comfortable

they

During

in

the summer.

within which it tries to

the

winter,

time,

is within rather

Magna

get

temperature

need

they

Plus

too warm.

for

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FISH ARCHES

The

Magna

II and II Plus have the

following ranges:

Fish arches are created when the cone of sound

The distance to a fish when the cone first strikes it is shown as "A"

below. When the center of the cone strikes the

shorter as shown "B". As the cone leaves the increases

as shown in "C".

again

BOATS DIRECTION OF TRAVEL

passes

fish,

over a fish.

the distance is

the distance

fish,

10, 20, 40, 60, 120, 240, 480,

and

5, 10, 20, 40, 60, 100, 200,

ZOOM

The zoom feature

automatic

bottom of the screen. This lets enlarging

bottom Zoom

To zoom the

menu

the zoom mode. A new menu

This is the zoom size menu. Zoom size is the distance between the

limit and the lower limit. The

mode,

all echoes that

in

the manual

-

Automatic

appears.

enlarges

it tracks the bottom

Operation

display,

Now

pressthe

all echoes on the screen. If the unit is in the

see small

you

appear

mode,

first

on the screen. The unit doesn't track the

and the

press

down arrow

immediately appears

upper

adjustments

the

MENU

limit shows at the

and 900 feet.

and 300 meters.

signal, always keeping

at the same time

detail,

are

slightly

until

key

key.

the RANGE/ZOOM

This switches the unit into

as shown

left corner of the

top

it near the

different.

on the

ZI1——20

37jFT

RANGE

act

3IAFT

ZOOM

SIZE

•c

right.

upper

TRACK

I

a

Jr

a

A

When the Fish l.D. mode is and

shape

example,

displayed cone diameter and the resolution limitations of the

of the fish arch due to the cone

if the cone

on the

Magna

off,

passes

II

may

B C

the

over a fish in shallow

not arch at all. This is due to the narrow

22

of the water will affect the size

depth

diameter. For

angle

water,

display.

the

signal

screen. The lower limit is in the bottom left corner. For

limit is 40 feet and the lower limit is 70

upper

is 30 feet. The word 'TRACK"

the zoom. This means the

window,

Press the

key

always keeping

arrow

up

to increase the zoom size.

key

appears

Magna

it on the

to decrease the zoom

II is

display.

7

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C

the zoom window size

feet,

inthis menu when

tracking

the bottom in a zoom

size,

press

example,

first activate

you

the

down

if the

arrow

The

Magna

II and II Plus have the

10, 20, 30, 60,120,240,

5, 10, 20, 30, 50, 100,

following

and

zoom

and 480 feet

and 150 meters.

ranges:

Both 8 ings,

model. This is because

ber,

of the

degree

even

the shallow

signal

and 20

though

edge

tells

degree

the bottom

of the

whether

you

are

signal

transducers

is much wider on the

signal

seeing

you

more of the bottom. Remem-

shows

are over

accurate bottom

give

the true

you

rocks, mud,

20

depth.

etc.

read-

degree

The rest

When the unit is switched into the zoom

the letters "ZM"

mode,

the screen. The zoom window size

in the

top right

To turn the zoom feature

until the RANGE/ZOOM menu

key

Now

press

the unit into the

feature off.

zoom

Zoom - Manual To

operate

first

press

ZOOM menu to

automatically appears

the

or down arrows. After

up

menu

key

appears.

window

pressing

move the zoom window surface,

between.

up

corner of the screen.

the

up

range mode,

the zoom feature

the menu

placethe Magna

until the "MOVE ZOOM" menu

This menu lets

ordown in one footincrements

the arrow

down to the

The window

appear

arrow

Operation

key.

next. You can

you

keys. Thus, you

bottom,

stays

it. It doesn't track the bottom

To turn the zoom feature

until the RANGE/ZOOM menu

key Now

the unit into the

zoom feature off.

press

the

arrow

up

range

mode,

at the

off,

key.

Then

off,

key.

the menu

press

appears.

This switches

which turns

when

press

in the zoom mode. The zoom

select the desired

you

movethe zoom

towards

up

or

anywhere

where

signal.

the

press

appears.

This switches

which turns the

of

top

displays

the

Magna

the down arrow

change

by

can

the

in

you put

menu

ZM——20

3IAFT

ZOOM

SIZE

4C

n;

*Vnc!

C

II is in the manual

in the RANGE/

key

size menu

zoom size

the

zoom

3IIAFT

lyiflhll-

IILJVC.

ZOOM

a&,4

by pressing

size, press

ZM——20

e

4-C

'et

mode,

the

'—

SIGNAL INTERPRETATION Your

Magna

passing.

wide

fairly down,

absorbs sensitivity

rocks or

Big

bottom level

height.

line

extending

A

steep slope

returned from a

II

gives

an accurate

A bottom of firm

If

automatic mode is off and the

signal.

then it means that

the sound wave and returns a weak

see a better bottom

to

stumps

signal.

As

you pass

L

the

you

on a smooth bottom send back

The

height

over a

above the bottom

returns

high

a wide

underwater

L

picture

sand, gravel, shell,

have moved over a mud bottom. Mud

signal.

of the

post,

signal.

signal,

cliff are

of the bottom that

signal depends

it should be

the

steeper

usually

your

or haitI

signal.

clearly

clay

signal

Turn

signals

on

the

visible as a short

the wider.

the widest of all.

returns a

narrows

above the

target's

I

boat is

the

up

Signals

8

21

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TRANSDUCER CONE ANGLES

SENSITIVITY

The sound waves from the transducer cone

shaped

The

angle

offers a choice of transducers with either an 8 or 20

Eagle angle. angle. Typically, operating

allows

angle water the 20

degree

The 20

the 8

water,

feet

(300

beam. This looks much like the beam from a

between the outside

The transducer

supplied

wide cone

edges

with the

angle

in shallow to medium water

to see more of the underwater world. In 15 feet of

you

degree

transducer covers

degree

degree mostly

-

fresh

cone covers an area about six feet across. The 8

about a two foot circle.

only

transducer is almost

in salt water. In a

water,

100 feet

-

more desirable. Since the sound area,

it can

penetrate

to much

deeper depths.

spread

of the cone is the cone

Magna

transducers

depths.

always

salt

water)

energy

is concentrated in a smaller

out into the water in a

flashlight.

angle.

cone cone

are ideal for

cone

II has a 20

(20 degrees)

The 20

degree

the best to use in fresh

water

deep

the narrow cone

environment,

angle

50'

is

The

sensitivity

A low

signals,

sensitivity

but it can also clutter the screen with noise and other unwanted

Typically, grayline.

The

Magna

menu lets

level excludes much of the bottom

and other detail.

the best

II

adjusts

sensitivity

the

control the unit's

you

High sensitivity settings

level shows a

sensitivity

level to

ability

good,

keep

to

pick up

information,

lets

solid bottom

you

see

signal

a solid bottom

echoes.

features,

signals.

signal

the screen. It adds a little extra when it's in the automatic mode. This

it the

capability

where it becomes

Typically, increase the

to show fish and other detail.

necessary

this occurs when

sensitivity.

to increase or decrease the

wish

you

The

procedure

However,

to see more

to

adjust

situations

sensitivity

detail,

so

you

need to

it is the same whether

the unit is in the automatic or manual mode. To

changethe sensitivity

menu

If

the unit is

"AUTO SENS." "MAN SENS." Now

to increase the

key

until the

in

automatic,

Otherwise,

sensitivity,

sensitivity

press

decrease it. A vertical bar

box shows the

scrolling

effects of the

onto the

sensitivity

screen

sensitivity change.

the maximum or minimum

tone sounds

alerting you

level,

menu

first

the

press

appears.

the menu shows

the

the down arrow

graph

will also show the

sensitivity level,

arrow

the

you

key

menu

reach

up

in

level. Echoes

If

to the limits.

to

a

fish

with

on

gives

oäcu•r

level.

100'

150'

200'

After

you've adjusted

sensitivity level, press

a few

seconds,

GRAYLINE

on

lets

you

targets

Grayline

gray difference between

or rocks and brush on the

bottom returns a weaker

hard bottom returns a

the unit to the desired

the ON/CLEAR

it will

automatically

distinguish

that are

between

stronger

a hard or soft

bottom. For

signal

strong signal

to clearthe

key

clear.

strong

than a

bottom,

which shows a narrow or no

and

preset

large

example,

that causes a wide

display.

weak echoes. It

level. This shows the

fish versus smaller

a

soft, muddy,

gray

If

you

or

gray

line.

wait

"paints"

ones,

weedy

line. A

8 DEGREE

20

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If

have two

you

the

target

structure,

Grayline weakechoes,

To

change

menu

appears.

arrow to decrease it. The bar level of

ing

of the

maximum or minimum alerting you

The level chosen first turned on is conditions.

the

FISH

The Fish ID feature identifies The

thermoclines,

ing targets

in

medium, otherwords,

fish, The

distinguish submerged

outwards from a feature to

screen

ID feature is on

When the turned

ID feature's menu

Grayline

onto the screen will also show the effects

Grayline change.

Grayline setting

ID

micro-computer analyses

of the

place

a medium fish

micro-computer

when,

on,

targets

with

gray

or the

®

is

adjustable.

changingthe

the

Grayline

Now

to the limits.

Experiment

FEATURE

and other undesirable

are fish. The Fish ID feature

actual fish echoes. There are four

and

large.

it

displays

between fish and other

floats,

distinguish

in

fact,

Magna

also. To turn this feature

of

equal size,

is the

stronger

fish from a smaller one.

larger

Since it shows the difference between

level

level,

pressthe up

now in use. Echoes scroll-

If

level,

the

by

usually adequate

Magna

with

that's best.

These show the relative size between

a small fish

symbol

is

sophisticated,

air

bubbles,

of limbs are the hardest

group

from fish. You

there are no fish.

and off to become more familiar with Fish

II is first turned

appears

as shown below. Now

echo. This

may require

first

press

arrow

graph

reach the

you

a tone sounds

II when it's

for most

unit to find

your

targets

all

echoes and eliminates

symbolwhen

on a

larger target,

etc. Individual tree limbs

on,

off, press

one with

the MENU

keyto

in the

Grayline

that meet certain conditions as fish.

signals.

displays symbols

but it can be fooled. It can't

suspended objects

may

Practicewiththe

the Fish ID feature is

and the other

gray

helps distinguish

adifferent

increasethe

In most

etc.

see Fish ID

the menu

sensitivity selling.

until the

key

menu box shows the

instances,

symbol itthinks

sizes: atarget

such as

objects

symbols

unit when the Fish

key

the down arrow

press

without,

fish from

and

strong

Grayline

the down

level,

surface

clutter,

remain-

on the screen

tiny, small,

targets.

small

is a

turtles,

extending

for the Fish

on the

ID.

automatically

until the Fish

In

ID

SIDE RANGE menu

the side

side scan mode are 60 meters. Press the ON/CLEAR

erase the

wait a few seconds

clear.

SIDE SCAN

The side scan

sounds when a Fish ID

the

and is scan feature is

back on edly

range

display.

automaticallyturned

again, press

while the side scan feature is on. When

the Side Alarm the

arrow

up

from the screen or wait a few seconds and it will

MENU SUMMARY

The menus listed below are while the

The order of the menus

different features are

when the unit is first turned on.

t

key

Magna

s

appears.

or the

up

0-10, 20,40,60,

menu from the screen or

and it will

-

ALARM

feature also has an alarm that

This is called the Side Alarm

enabled. To turn it

the MENU

menu

appears, press

toturn it on. Press the ON/CLEAR

II is in the normal mode with automatic and Fish

selected,

a

ZO

.

P'

9.

MAN

ICHARTI ISPEEDI

6.

10 .

Now

arrow

key

automatically

symbol appears

on when the side

key repeat-

shown in order as

the menus

(and

however

'RANGE'

I SET I

I BY I

IAUTOI

MODE

lDI9p

LHn

FISH

li''al

•j

13.

ON

14.

I I

IMETERI

the down arrow

press

to increase

and 120 feet or

to

key

on

or

off,

the down arrow

themselves)

this is order the menus are in

a

SHI

IOFF

I

7.

I SEP13

iI,r&

ISHALI

IALAR11I

ii

l4

I OFFi loiRKl

15.

P6HTI

II "I

it. The available

AUTO

keyto

0-10, 20,40,

key

erasethis

keyto

automatically

you press

will

ID

decrease

ranges

to tum it

off,

menu

clear.

the MENU

ID on.

change

ISIDEI

4.

IOFFP

I GRAYI

8.

LINE

I

Iiw&I

IDEEPI

12.

IALARMI

I&

I UFFI

16.

lUFF

in

and

or

key

as

I

10

19

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SIDE SCAN

The

Magna

unique ability

the boat. This

and

requires

accessory package.

of a

transducer,

II and

Magna

to view

the

targets

feature is called 'side scan"

optional

adjustable

ScanPac transducer

ScanPac consists

The

a "'1" cable. The transducer

trolling

motorwith

The "'1" cable connects

transducer and transducer connector. See

instructions for

To use the

repeatedly press

Side Scan menu

arrow

key

The screen shown

the

adjustable

both the ScanPac

the

Magna

to the

Magna

the ScanPac's installation

more detail.

Magna

II in the side scan

the MENU

appears.

to turn the side

at

Now

scan feature on.

right appears.

II Plus have the

out to the side

metal

strap,

attaches to the

metal II's normal

of

and

strap.

II's transducer

mode,

until the

key

the

press

up

This turns

key.

but

press

The Fish ID feature

Magna

II is in the manual

the automatic

will

automatically

CHART

the feature off. To turn it back

the

up

feature

SPEED

arrow

can't be used when the

be turned

instead.

key

mode. If

the Fish ID feature

oft,

off,

also.

you

turn

The rate echoes scroll across the screen

the chart

called pressing

menu

the menu

appears.

mum whenthe decrease

the

graph

it,

press

speed again.

of the

speed.

effects of the warning

tone sounds.

speed.

Chart

Magna

thedown arrow

The bar

change.

It's

until the

key

speed

II is firstturned

graph

Echoes

If

you

scrolling

adjustable

chart

speed

is set to

maxi-

on. To

Press the

key.

in the Chart

onto the screen will also show the

the maximum or minimum

reach

on, repeat

is

by

Speed

the above

arrow

up

keyto

menu box shows a

steps,

increase

an

level,

Target

lines on the left

symbols appear screen when the

group

symbol

tothe

In the

the fish to the

echoes

of echoes are fish. When a Fish

appears,

boat shows at the bottom of the example

symbol

digital depth

appear

side of the screen. Fish ID

on the

unit's

the distance tiom the

shown at disappears,

display.

as

right

computer

right!

horizontal

short,

side of the

thinks

a fish

the

display

the screen on the left.

See

a

ID

symbol

screen.

symbol

is 27 feet from the boat. After

at the boffom of the screen

The water is 64 feet. This is the distance bottom

not the side scan.

trolling

to the

motor,

depth

a

large

sounding transducer,

By slowly

area around the boat

reverts

depth

from the

rotating your

can be scanned.

SIDE SCAN-RANGE

Therange showsonthesidesofthedisplay.

Remember,

of the

change

while the

boat,

the

side scan feature is on until the

18

this is the

not towards the bottom.

range, press

out to the side

range

the MENU

To

key

To

stop

CLEAR press

pears

arrow

up

the

chart,

You can't

key.

the

arrow

up

at the

top right portion

key again.

first clear

stop

The chart will freeze and the word "STOP"

key.

menu from the screen

any

the chart while a menu is of the screen. To start the

11

by pressing

displayed.

chart,

the

press

ON!

Now

ap-

the

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DISPLAY MODE

The

Magna

six. To

(Display Mode)

until the desired mode number

MACNA II ONLY

CHI 1

This is Magna

lowing

1. Automatic On

2. Fish ID

3.

Digital Depth Display

II has three

change

menu

(Chart #1)

modes,

different screen modes. The

press

appears.

the default mode used when the

II

is first turned on. It has the fol-

features:

Feature On

On

the MENU

Then

press

appears.

Magna

until the "DISP MODE"

key

the

The modes are as follows:

or down arrow

up

II Plus has

keys

373FT

DISI

MODE

CHT1

To until the decrease the The bar shows a will also show the effects

you

tone sounds

menu will clear seconds or

key

the

adjust

up

reach the maximum or

to

clear the screen.

contrast,

DARK/LIGHT menu

it, press

arrow

key

in

graph

of the contrast. The screen

graph

alerting you

you

press

the down arrow

to increase the contrast.

the

Dark/Light

automatically

can

press

the menu

appears.

Press

key.

menu box

of the

change.

minimum

to

the limits. The

the ON/CLEAR

level,

after a few

key

To

If

a

CHT 2 This is the

the

at

1.

2.

3.

DIG This is the

digital depth display

in

alarm digital depth.

(Chart

chart

a

high

Automatic Off

Fish ID Feature Off Digital

1

(Digital #1)

very large

settings

#2)

High Speed

into

speed

rate. It has the

Depth Display

digital only

numbers. The

high gear, sciolling

are

No chart shows on

Scroll mode. It

following

Off

screen. It

at the

displayed

of the screen

top

shallow and

beneath the

shifts

echoes

features:

shows the

deep

this screen.

1:1

E:::::::..::::.:::::::::s::;.::.

.:

-n

DEPTH FT

[ 60+8.

SHAL ALM

I

L

I I

OFT

DEEP ALM

OFT

ASP

(Advanced Signal

ASP is a

II's

eliminate no!se. It

signals echoes are

allows true screen ture is

you operate

adjusting When the

turn

Now

menu will CLEAR

program

computer

that is

from the

with a minimum of clutter. This fea-

especially

receiver,

noise and

target

the boat at all

the

sensitivity

Magna

ASP

off,

press

the

press

up

clearautomatically

to clear the screen.

key

Processing)

embedded

specifically

continually

echoes to

useful since it

II

or

Magna

the menu

arrow to turn it on

in

the

designed

monitors

determines which

rejects

them. This

display

typically

speeds

or other controls.

II Plus is first turned

key repeatedly after a few

— —

E

t-ct

appears.

Magna

to

the

on the

lets

without

373FT

ASP

t.O

___________________

ASP is enabled. To

on,

until the ASP menu

or the down arrow to turn it off. The

seconds

oryou

can

pressthe

ON/

12

17

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LAMP

The

Magna backlighted lights

until the LAMP menu

edly

press

down arrow to turn them off. The menu clear

can

you the screen.

II and

for

night

on or

off,

press

the

arrow to turn the

up

automatically

the ON/CLEAR

press

Magna

II Plus'

To

use.

the menu

appears.

after a few

display

the back-

turn

key repeat-

on or the

lights

seconds or

to clear

key

is

Now

will

373FT

__________

I LAMPI

_______

__________ ____

ect

_____

.4

DISPLAY MODE

MAGNAII PLUS ONLY CHT 1

This is the default

Magna

lowing

1. Automatic On

2. Ash ID Feature

3.

(Chart #1)

II Plus is

features:

Digital Depth

(cont.)

mode used when the

firstturned on. It has the fol-

On

Display

On

ZM——20

34.1FT

743°F:

2

FEET/METER

The

Magna

depth can also show

enheit or

hour or

miles or nautical

the metric

zooms, When a unit

above

To

change

FEET/METER metric,

is first turned

or

you

DISPLAY CONTRAST The unit's

This will

of the

II and

Magna

in feet or meters.

temperature

Celsius, speed

and distance

knots,

miles. When either unit is in

all

mode,

and alarm

settings

from feet to meters or

the

up

can

press

displaycontrast

help you

day.

depth readings, ranges,

sethngs

is in the feet

are in feet.

menu

arrow to switch to feet.

on. The menu will clear

the ON/CLEAR

see the screen from different

II Plus can showthe

The

Magna

in

degrees

in statute miles

in statute

(log)

are in meters.

mode,

appears.

is

all of the

vice-versa, press Press the

key

adjustable

16

II Plus

Fahr-

per

menu

the

down arrow

in feet when the unit

Displays

automatically

show

after a

to clear the screen.

to suit different

angles,

lighting

or at various times

key

to switch to

key

few seconds

conditions.

until the

CHT 3 Same

display.

(Chad

as Chart #1

#3)

plus digital speed

CHT

Same as Chart #1

water

CHT This is

the chart

features:

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(Chart #2)

pIus digital

temperature display.

4

(Chart #4)

the

High Speed

speed

echoes at

1. Automatic

2. Fish ID Feature Off

3. All

a

Digital

13

into

rate. It has the

high

Off

Displays

surface

Scroll mode. It

high gear,

Off

scrolling

following

shifts

DISPLAY MODE DIG1

(Digital#1)

This is the first

the

digital depth display

screen in and neath the

this

DIG

The this

temperature, speed,

the

Magna Magna

zero.

very large

alarm

deep

digital depth.

screen.

2(Digital#2)

digital depth display

screen

depth.

The

II Plus is first turned on. When the

II Plus is turned

(cont.)

digital only

settings

in:

very large digits.

log

screen. It shows

at the

numbers. The shallow

are

displayed

No chart shows on

shows at the

and

starts

shows beneath

log

counting

the

off,

log

of the

top

The

digital

when the

is reset to

DEPTH FT

[60.8]

SHAL ALM

I

OFT

DEEP ALM

be-

L

F

OFT

DEPTH FT

of

[38.3]

TEMP °F

F

I_

ISPEED

L

I

T88

33.8

LOGMI

8.3

MPH

DEPTH ALARMS

Thedepth will activatethese alarms. The

alarm. The shallow alarm sounds an alarm tone when the bottom shallower than the alarm's the bottom

although through

alarms

aretriggered onlybythe

goes deeper

different menus.

depth

setting.

than ft's

setting.

bottom

alarms consistof a shallow and

The

deep

signal.

alarm sounds a tone when

Both alarms

Nootherechoes

the

adjust

same,

Shallow Alarm

To setthe shallow repeatedly

appears. crease the

until the "SHAL ALARM" menu

Press the down arrow

the

depth,

alarm,

up

press

arrow

the menu

key

decreases

key

to in-

it. The number in the shallow alarm's menu

box shows

When the number reaches the desired set-

ting,

CLEAR menu from the screen. Nowwhenthe bottom depth goes

ting the alarm

on the screen as shown below.

the current shallow alarm

release the arrow

to remove the shallow alarm

key

shallower than the alarm's set-

key.

setting.

Press the ON!

an alarm tone sounds. At the same time

sounds,

a

message

box

appears

deep

goes

ALARMS

373FT

___________

SHAL

.-t

Press the

This will turn the alarm

shallow

arrow

up

alarm is

silence the alarm.

keyto

off

sound

triggered again.

until the

ALARM

FISH ALARM The Fish Alarm sounds a tone when a fish

symbol appears fish

alarm,

"FISH ALARM" menu

Now

press

on.

Repeat

alarm off.

it will be turned on when

alarm

on.)

on the screen. To use the

the menu

press

the

arrow

up

the above

If the Fish ID feature is

(Note:

appears

steps

key

on the screen.

to turn the alarm

key

to turn the fish

you

until the

off,

turn the fish

14

MUTE

S

Alarm

Deep The

ALARM" menu to deeper

deep

than the

alarm

adjusts

setting,

To turn the alarm

until the shallow alarm menu press

appears;

the

same as the shallow alarm. Use the 'DEEP

the

adjust

deep

an alarm tone sounds.

off, press

the

arrow

up

alarm. When the bottom

15

key

the menu

appears.

until the word "OFF"

signal goes

key

Then

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Eagle Magna II, Magna II Plus INSTALLATION AND OPERATION INSTRUCTIONS

Specifications and Main Features

Frequently Asked Questions

User Manual