Lowrance X-3 User Manual

INSTALLATION

AND OPERATION

MANUAL

COMMAND SUMMARY

DIGITAL OFF/ON
DIGITAL Ws SIZE

AUTO RANGING OFF/ON•

HIGH-SPEED Scroll ON/OFF
CLEAR ENTRY
CLEAR SCREEN
FREEZE CHART
RESTART CHART
DISCRIMINATION
AUTO-RANGING

BO1TOM TRACK

INCREASE SENSITIVITY
DECREASE SENSITIVITY
INCREASE CHART
DECREASE

CHART SPEED

VIEW
WITHOUT CHANGING

TURN OFF/ON
SENSITIVITY

TURN ON/OFF

FEET-FATHOMS-METERS
CHART

DEPTH ALARM SET

CLEAR
TURN

SPEAKER OFF/ON

ALARM SET

ALARM

ALARM

W/ZOOM

SPEED

CHART SPEED

AUTO

LIGHTS

2nd-5
2nd-2
2nd-B
2nd -4
2nd-O or 2nd-2nd

2nd-0-0

STOP/RESUME
STOP/RESUME

or 2-DISC

0,1,

WINDOW SIZE-2nd-8

PRESS > KEY
PRESS < KEY

PRESS FAST
PRESS SLOW
PRESS 2nd-FAST

PRESS

KEY

KEY

or SLOW

AUTO KEY

2nd-9
2nd-6

SELECT-SHALLOW

UP ARROW

ADJUST
SELECT-SHALLOW

SHALLOW SET-DEEP ALARM DEPTH

DEEP SET

2nd-O -SELECT

NOTE

or DOWN ARROW TO

DEPTH

KEY'

SET or DEEP SET-

ALARM DEPTH-

X-3

LCG

-

RECORDER

INC.

74128

988-0105-04

LOWRANCE

•

12000 E. SKELLY

ELECTRONICS,

DR.,

TULSA,

OKLA.

PDF compression, OCR, web-optimization with CVISION's PdfCompressor

INDEX

Installation 2

Power Connections

BASIC

OPERATION 4

OFF/ON

Sensitivity

ChartSpeed
Clear

Range

Auto

Range

3

SHALLOW

In

shallow

5
7
8
o ______ _______
8 Next,

very

with the

The

easiest

select a

WATER OPERATION

water,

automatic and

way

depth

(less

digital

to do this is to

range.

than

eight feet)

functions turned off.

the LCG

______ ______

press I

2ND

may operate

4

I I

HISPO-

J (

better

Lower Limit 9

Limit

Upper

Digital

ALARMS "

Alarm

Chart
Clearing

Depth
Clearing Depth
Light

Discrimination 17

ADVANCED OPERATION

High Speed

FASTRAK

Feet-Fathoms-Meters
Auto
Auto
Other
Transducers and Cone

Signal Interpretation

Fish
Surface Clutter 27

Water
Surveying

Bait Fish 29
Troubleshooting

Specifications

Row to Obtain Service 32
Schematic
SHALLOW Water

Chart Alarm 15

Alarm 15

Alarm

Scroll 18

with Zoom

Range

Sensitivity

Tips

Signals

Temperature

Bottom Track 21

Angles

and Thermoclines 27

a Lake

Diagram

and Parts List 32

Operation

14

16
17

18

19

20
22

22
23

24
25

29
30

31

34

lithe

sensitivity

Selecting

is too

the

high speed

but also turns off

slower chart
again.

matic
The

sensitivity

bottom

speed

This will turn off

sensitivity,

is too

signal.

high, press

the

digital sonar,

is

desired,

the

auto

ranging

high

scroll feature not

auto

sensitivity,

the 2nd

press

High Speed

and

if

the screen

Scroll

function will remain off.

digital

appears black,

only gives a high

and auto

and

key

mode,

then the 4

however

obscuring

àhat

speed,

ranging.

key

the auto-

the

If a

1

34

PDF compression, OCR, web-optimization with CVISION's PdfCompressor

INTRODUCTION

The Lowrance

more

packs

tal

display (LCD.).

X-3

power

Liquid Crystal
and features

Graph (LCG)

than

other sonar

any

is a

compact

unit that

using a liquid crys-

Range:
Discrimination: Level

High Speed

Sloping

Range:

Fish at 19 feet
Surface Clutter

20 to 40

Bottom, Large

5 to

feet

Scroll:

40 feet

Extends to 15 feet

1

On

Fish from 22 to 34 feet

Fish on Bottom

Large

LCD. sets the X-3

The

writing
information

echo

screen, leaving
No other

on,

on chart

paper

on a screen

is received. As each

behind a record

sonar has as

it will find and

the bottom

of

depth
range, sensitivity,
displayed

needs
However,

to be
The

the internal

of

lighted
Lowrance full

date of

on the screen.

to be touched is the off/on

the X-3 has built

used in

X-3 is

any

nitrogen

parts.

for

easy

warranty

purchase.

use

INSTALLATION
The X-3
tilted for

screw or thru

panels

required

screws. Stainless

certain

transducer cables.

be installed in

may
the best

bolt

with sheet metal

the back of thin

on

there is

enough

from other sonar units.

apart

or a

using

flashing

echo is

small

detected,

neon

squares

of the area that

automatic features as

many

bottom

display

and other controls

combination

the

changes,

If

desired,

in override

filled and sealed

The

liquid crystal display

at

and the X-3 is

night,

signal,

the X-3 will

so that the

the

key.

to best suit local conditions.

for

which covers all

convenient location,

any

viewing angle.

mounting.

screws,

steel is recommended

room behind

Roles in the bracket base

The bracket

however,

fiberglass panels

Instead of a

X-3

the

light,

which turn

the

signals

was

just passed.

the X-3. Once turned

and other

fish,

automatically

bottom will

the

only key

capability

complete

parts

on

that allows the features

waterproof protection

and

keyboard

covered

fully

labor for one

and

provided

be attached

may

a

piece

of

plywood may

to secure

for all

mounting

the unit to attach

stylus

the

displays

black when

move across the

targets.

change

always

keyboard

by

depth

an

As

the

be

that

are back-

a one

year

year

it can be

allow wood

to aluminum

be

the

mounting

hardware. Make

the

power

and

the

from

A Ye" hole is

transducer

The smallest hole that

face.

allow

and

hole
thru the

be filled with silicone rubber

may
offset so

PDF compression, OCR, web-optimization with CVISION's PdfCompressor

33

in the base of the

cables to be routed

will

the transducer connector

the

bracket,

gimbal

bracket and dash.

that the

majority

then

After the cables have been routed,

of the hole is covered.

gimbal

bracket that allows

straight

pass

down

one connector

through

and cable to be

cable wire can

power

adhesive

(RTV),

2

passed

or

the

the

mounting

thru is ¾". This will

up through

be

pushed

the bracket can be

power

sur-

the

down

the hole

and

POWER

Twelve volt DC

The

you
show whenever the boat's

should be attached

CONNECTIONS

power

cable

power
have

problems

may

should be

be

with electrical

directly

engine

to the

supplied by

interference

or other

battery.

attached to an

the boat's electrical

accessory

accessory

or

power

(random

is

buss,

dots or

the cable

on),

system.

but if

lines that

HOW TO

If

you

before

help

Assistance can

of our

Department
If

you

If

you

OBTAIN

have a

live out of
live in the

problem

sending

Authorized Service Centers or the

in

Tulsa,

SERVICE

with

it in for

often be extended

OK.

the state of

state of

Oklahoma,

sonar

your

repair.

by telephone

Oklahoma,

call collect

unit,

please give

us a chance to

or letter. Write or

Lowrance Customer Service

call 1

-800-331-3889,

918-437-6881.

toIl free.

call one

1

Figure

The

ground

supplied
power

should be attached

long enough, splice

the fuse holder is

buss)

of a short The X-3 is

not be harmed if the

until the

Electrical noise

it

ing

the

largest

the

engine

wire for the tachometer which

the

best

engine
away

cable has two

power

or

negative.

An in-line fuse holder

with the X-3.

cable with the

to the

ordinary

as close to the

as

possible.

proper polarity

from other

away

noise

This will

wires are reversed.

picked up

generators

to the boat's

results,

wiring. Bilge pumps

from

them,

keep

too.

wires,

This should be attached

connector. The

crimp

battery

protect

protected

is

applied.)

by

possible

is the

instrument

the

power

are also

Ground

N

alive)

eq

red for the

or

#18

accessory

lamp

power

the

from accidental

the

power

sources of electrical

engine's wiring

panel.

radiates RF

and transducer

noisy,

positive

containing

other end of the fuse holder

cord to reach.

source

cable and

power

(However,

cable can be

This harness

(radio frequency)

so

try

lead and black

a 3

amp

is

fuse is

to the red wire on the

If

buss.

the cable is not

Just be certain that

(battery
polarity

cables

to

or

accessory

in

unit

reversals and will

the unit

harness that

keep

will not work

minimized

interference. One of

usually

energy.

from the

away

the

X-3's cables

the event

rout-

by

runs from

contains a

For

Please detail the

be able to save

may

If it

is determined that

tions will be

SCHEMATIC

Should
send
Please be sure and
Lowrance sonar unit

you

$1.00

to the

Mail To:

problem

provided.

DIAGRAM AND

desire

a schematic and

address below and it will be mailed

Lowrance Electronics

12000 E.

Tulsa,

are

you

the inconvenience of

you

your

experiencing.

unit must be

PARTS LIST

parts

us the model and serial

give

Dr.

Skelly

Oklahoma 74128

Our

returning your

returned,

list for

your

number of

Service

full

shipping

Lowrance

to

you promptly.

Department

unit.

instruc-

sonar,

your

VHF

radio antenna's coax cable

than even

X-3's

radio's

the

engines wiring

and transducer cables as far

power

antenna cable.

radiate RF

hamess. It is

3

energy

very important

away

at

higher power

as

possible

levels

to

the

keep

from the VHF

32

PDF compression, OCR, web-optimization with CVISION's PdfCompressor

Dimensions

Weight

Transmitter

Power

Output
Receiver

Operating

Operating

Sensitivity

Current

Voltage

SPECIFICATIONS

5¾"H x

1¾
192 kHz
600 watts

8°/16"W

pounds

peak

x 2%"D

to

75 watts RMS

> 90 db

200 ma
500 ma

9-15 vdc

(lights off)
(lights on)

When first turned
and chart

speed according

be left in this mode and it

peak typical automatically

will also

tivity
present,
automatic

following chapter

for

make the most out of the X-3's remarkable

fish or other

specific

your

mode

BASIC OPERATION

the X-3

on,

changing
change

as

targets may

Just turn it on and watch it work.

only.

on the X-3's basic

needs.

automatically adjusts

to water and bottom conditions. In

will track the bottom and

the

required,

Later,

as the bottom

range

to

keep

the bottom

be seen. At

operation

read the Advanced

capabilities.

depth

first,

operate

and learn how

Operation

the

sensitivity, range,

fact,

display

it at all

varies. The sensi-

signal displayed.

the X-3 in the

read the

Then,

to

section to

it can

times,

adjust

If

it

Number of

Depth Capability

Display

Temperature

(operating)
Temperature

(storage)

pixels

Scroll

Speed

82 x 32
2624Total

300'-500'
transducer)

500'-700'

transducer)
.5"

8"

32"

0

degrees

+32

—40
—40

minute

per

minute

per

minute

per

degrees
degrees

degrees

typical (with

typical (with

C to

(minimum,

(maximum,

(Nigh
+60

degrees

F to 140

C to +80

+176

F to

20

degree

OFF/ON

8

degree

normal

normal

Speed Scroll) Turning power

degrees

degrees

degrees

mode)

mode)

C time a

F

C

F

The off/on

placed

To turn the X-3
keyboard

themselves off after six seconds.
played

depth
shown in the

return echoes from the
across the

in this location so that it would be

key

and

display.

Turning power

To turn the X-3

erased. This

until

ypy

down until the screen.is erased. If

key

seconds,

is in the lower

key

on, press

is

pressed.

been

has

number "0" will flash. This number is the

the

After the unit has found the

display, proper sensitivity

display

off, press

take several seconds. The unit will

may

release the off/on

the unit won't turn off.

right

on

the off/on

This is how the

The chart

made.)

bottom, fish,

off

and HOLD the off/on

Remember,

key.

hand corner of the

to find—even at

easy

key. (Note:

X-3

lights

A

message (see figure 4)

and

or other

you

the unit

signals

bottom,

that an

will

begin flashing,

the

will be

range

targets

you

will

until the

key

beep continuously

must hold the Off/On

don't hold it for several

keyboard.

night.

will

beep every

on the

entry

then turn

will be dis-

bottom

digital

will be

depth

selected,

begin scrolling

display

It was

and

is

PDF compression, OCR, web-optimization with CVISION's PdfCompressor

31

4

SENSITM

BAR

liii

TROUBLESHOOTING

If the unit works

bottom
Read the transducer installation

procedure.

If the

be

transducer cable

engine

wiring.

signal

transducer is installed

the cause. Double check the

wiring

properly

at

high speed,

routing.

or other

when

the transducer could be

properly,

Make certain that

wiring harnesses,

stopped

manual for the correct

installation,

or at low

then electrical

especially

speeds,

particularly

are

they

the

but loses the

improperly

mounting

interference could

the

away

tachometer

installed.

power

from the

and

SENSITIVITY

When first turned

the

sensitivity

computer

The

sensitivity

adjusted

The

sensitivity

of the

display.

short As

very
increasing

When the
across the

and

to find

can

higher

level

See

sensitivity

in

length

sensitivity

of the

top

II

:E; E A F: c H

•'i1F9i1'1bth'

AUTO

the X-3 is in the AUTO

on,

are

range

and lock onto the bottom.

be left in the automatic

or

lower to suit conditions.

settings

Figure

corresponding

is

display

being automatically adjusted

are

displayed

2.

When the

is

increased,

sensitivity

the bar will travel to the

with

set to

maximum,

from

left to

Figure

j'tU'

SEARCH mode. This means

the micro-

by

mode, or it can be

a horizontal bar at the

by

is at

minimum,

the

higher sensitivity selling.

the bar will run

right

manually

completely

2

top

the bar is

right

Should the

the

digital
digital
scrolling

the

digital regains
digital

unit off and back on
cannot find the bottom

eight feet)
operation

If the unit

the fuse or

Fish

as

irregularly shaped

or

deeper water,

the section "Fish

If the unit will not turn

ON/OFF
down,

On rare occasions
could cause the LCG to

keyboard may

will not turn the unit

key
pressing

simply
and

turn it on.

display "freeze'

bottom

has lost the

when the

bottom

following

may help.

doesn't turn on when the

signals,

key

the unit won't

2nd-O-0.

unplug

depth

the

depth

battery

conections for

especially

using

Signals"

down

not

function

the

power

bottom

digital

bottom. If neither the

is

again.

the

marks. Fish

off,

until the

turn off:

and in certain

This should clear the screen. If

check to see if

is

flashing.

signal,

loses the bottom. It will

flashing

If it

and it is

and the chart won't

The unit should

and

signal,

directions on

in shallow

a zoom

on

remember that

display

properly. (For example, pressing

oft).

cable from the back of the

you

ON/OFF

tightness

water,

arches are most

range (for

25.

page

display goes

installations, electrical interference

random

To

restore it to

the

top

then the

is,

to find it The chart

trying

start

line of the

top

begin

are in shallow

page

working normally.

24

concerning

is

key

or corrosion.

do not

always

example

should

you

blank. If

information on the screen or the

you

working order,

line of the

unit is

working,

moving again

display
then turn the

scroll,

water, (less

shallow water

pressed,

likely

40 to 60

press

then

arch, but

seen in

feet).

and HOLD

don't hold the

the ON/OFF

first

this doesn't

unit

plug

display

but

nor the

than

check

appear

40 feet

Read

try

work,

it

back

or

the

stops

when

If it

the

key

in,

The AUTO

off and on. Press it

sitivity

and

again,

below the

at the

key

auto

sensitMty

sensitivity

middle

top

once,

will

and can be

bar,

position

and autO

on the

keyboard

sensitivity

tUrns

auto sen-

is turned off. Press it

be turned ott The auto annunciator is

seen when the auto

sensitivity

5

is on.

30

PDF compression, OCR, web-optimization with CVISION's PdfCompressor

SURVEYING A LAKE
The

most successful

it

after

day

duce fish

what

depth, they

son. And

year depending

With

the aid of the

and

day

consistently. They

realize that these

they

on

trate on the areas

anglers

year

can

expect

water

X-3, anyone

where fish

on

after

discover

to

level, temperature, food,

are

lake or reservoir are those who fish

any

until

year

through experience where,

find the

productive

can eliminate

likely

the lakel
The most efficient

survey

As

bottom, It will also reveal
suspended

good

farther.

When the X-3

it with

indicate the

you go

school,

a few Lowrance Fish-N-Floats in the

Keep

your

promising

about

over

it is worth it to

indicates a school

to become

way

X-3. Start out with a

in

spots

your survey, your

water, If

deep

relation to landmarks on shore.

fish, perhaps

multiple signals

and fish for them.

stop

of

acquainted

X-3 will tell

fish,

will unwind until the sinker hits bottom.

shape,
make

essential when
school of fish when

it won't unwind

turn and come back to fish in

your

you're

any

far from

you're

farther

over

With

shore

it,

you may

on a

BAIT FISH

The

importance

emphasized.

Bait

fish are the

can also be the

They
white

bass which also feed near the surface.

Most bait
light promotes

method of

fish will be

15 feet

deep.

of bait fish to successful

are the

They

plankton feeding forage

fish are concentrated within five feet of the surface where sun-

the

growth

is to use the X-3 to find the bait fish first.

fishing

nearby—often directly

principle

young

of the

food of

of

fish,

game

plankton

beneath the school of bait fish at 12 to

they

kind

areas

learn the

of fish

hot

want at

they

change throughout

spots

that
any

and other factors.

guesswork

to

be—even if its the first time on

with

of the

map

you

schools of

crappies

on the

boat,

ready

throw the

because of the

Then,

the school thus

exactly

fishing

fish,

the

lake. Unless

big

not be able to find it

can't be over-

fish in

game

such as minnows and shad.

such as

on which

and concen-

a

lake,

the

You

buoy

crappies, bluegill,

of water is to

body

if

possible

depth

display

may

to

toss overboard.

out. The

marked, you

spot.

right

you

most waters.

feed. One

they

Usually, game

and kind of

or

white bass

indicate a

not

get any

marker's

This is

mark the

again.

pro-

and at

sea-

the

and

string

flat

can

and

iiiuii

AUTO

N u N C IATO R

AN

BO1TOM—

SIGNAL

RANGE

0-96 FEET

To

ciator will
arrow

decreases
moves as

bar moves to the
arrow

You can also see the

with too little

properly.

-

WIiCi.E

WEAK

—

manually adjust

disappear.

key>

sensitivity

you change settings.

moves the bar to the

key

Note how the surface

AUTO.

96

Figure

the

To increase the

until the

right showing

sensitivity,

!I!fli!F

J

AUTO.

RANGING

3

sensitivity,

sensitivity
in the same manner. Notice how the

changes

on the

while on the

is also narrow on the left chart. On the

properly;

a

and the bottom

records,

When the horizontal bar reaches

the
are

caused

maka second

To turn Auto

automatic

see the section called

sensitivity

a

used,

by

the AUTO

now

fish is

level is at the maximum level. When

second bottom echo

the

returning signal reflecting

trip

Sensitivity

sensitivity

See

key.

visible,
has widened. For more information on

signal

to the bottom and back.

control can be turned off or on at

Page

the surface

back

on, press

22 for more auto

IIIIIIIHIIIIUhIIHhII

\SURFACE,

CLUTTER

Bo

the AUTO

press

sensitivity, press

at the

is

When

an increase in

left,

signal

Graph Interpretation.

desired level.

press

you

showing

display.

the

right

is

very

right,

clutter

the far

right

may appear

key.

the

sensitivity. Pressing

a decrease

Figure
sensitivity

and the bottom

small,

the

sensitivity

is more

hand

high

This is normal

off the surface of the

the AUTO

key.

sensitivity

I

96

AUTO.

RANGING

4

Figure

The AUTO annun-

and hold the

The left arrow

sensitivity

arrow

right

3 shows a

is

of the

side

sensitivity settings

Remember,

any

features.

key,

in

sensitivity.

graph

adjusted

is

adjusted

pronounced,

graph

screen,

and

is

water,

the

time

by using

FISH

STRONG

-

BOTTOM

SIGNAL

right

<

bar
the

the left

signal

PDF compression, OCR, web-optimization with CVISION's PdfCompressor

29

6

SLOW

CHART SPEED

When

the X-3 is first turned

speed.
chart

the
are
dashed line. This

the
that the chart

speed. By holding

speeded up

right

will

At

Pressing
display
signify

will start the

If a

higher

section of the

display,
pressed,

FAST

press

the

key, foräxample,

speed

or

slowed down. When the horizontal

side of the

sensitivity

screen,

"chirp" signifying

CHART

SPEED

BAR

times it is desirable to

the STOP/RESUME

is

stopped,

that the unit is in the freeze mode.

display moving

is

speed

keyboard

and hold the SLOW

now

represents

is

increasing.

either the FAST or SLOW

the chart

that the maximum chart

,-

uuuo flUID 111111111

-

stop

the

very top

LCHART p

STOP

RESUME

the

on,

desired,

until it runs at the

bar at the

I

chart

speed

and hold the FAST

press

key.

of

top

the chart

the bar will start

There are

is at

speed

jj

or "freeze"

key

of the

at the last chart

the

once wil

surface line will flash on and off

Pressing

FAST

1

runs at a

desired

Whenever either of these

the

display

If

speed.

moving

two

thirty

the

keys,

pre-determined

speed.

will

change

you press

to the

right, signifying

steps

display

in the

key

To slow

and hold

of chart

can be

barreaches the far

its maximum value. The X-3

has been reached.

speed

5

Figure

display

freeze the

speed

to examine an echo.

display.

STOP/RESUME

setting.

While the

keys

to a

to

again

A

knowledge

they usually remain, helps you get
ferent

temperatures,

LDT-3000 is a valuable aid to
extremely quick response

temperatures
The

temperature

tom.

Layers

and cool

of the thermocline can

there

may

to fishermen because

bait

fish will be above the thermocline while

in or

pend

The X-3 can detect

sensitivity

of the water

temperatures

the most

a

surface

for various

temperature meter,

your fishing.

to

identifying

species.

of water in the lake is seldom constant from

of different

of water is called a thermocline. The

layer

temperatures form,

with the season or time of

vary

be two or more at different

are areas where fish are active.

they

above it

just

will

this invisible

probably

have to be turned

temperature layer

"WI

various fish

from

your

such as the

This unit

and in which

prefer,

X-3. To find the dif-

provides

the desired surface water

and the

depths.

up

AUTO.

111—----

junction

depth

Thermoclines are

larger game

in the

to see it

of a warm

and thickness

In

day.

Many

fish will sus-

water,

—THERMOCLINE

an

to bot-

top

deep

important

times

but the

lakes

[2ND]

2ND KEY

The X-3 has
for

keys. Therefore,

key's

primary

is

printed

middle of the
secondary

For

says

underneath with small letters of a

functions of the

example,

"LIGHT". If

the number 9.

the X-3 will turn on

key,

signed

the

meaning

different

many

some of the

function
bottom row labeled 2nd must be

the 9

key

you press

However,

of the 9

functions, but

have

is

printed very large,

keys

keys.

has a small label

the 9

if

the

key by

you press

in the

lights

from a 9 to LIGHT

key

the 2nd

only

more than one function. The

while the

different color. The

beneath the number nine that

itself,

display.

7

a limited amount of

secondary

used to access the

the X-3

key first,

The

2nd

thinks that

then

press

key just

space

function

in the

key

want

you

the nine

reas-

Figure

24

=

4.

A

28

rn

Ut'

:

PDF compression, OCR, web-optimization with CVISION's PdfCompressor

SURFACECLUTTER

The

markings

which can extend

fish

signals

algae, plankton,

or

fish,
These marks are normal and can be seen at

usually

winter.

at the

top

many

or other

targets.

air bubbles caused

temperature

the worst in the

inversions.

of the screen

feet below the surface. This can interfere with

It's called Surface Clutter and is caused

and

spring

represent

wave action or boat

by

summer,

the surface of the water

wakes,

time

any

slacking

off in the fall and

during

the

by

bait

year.

It's

CLEAR

If

you press

before

pressing

"forget"

For

example,

are 2nd

2nd

key by

from the

rect

entry

a

key

another

the last

-9.

screen,

key

if.

you

However,

accident, you

is to

press

101

I CLEJ

that is not what

key

entered.

wish to turn on the

if

you accidentally pressed

could wait six seconds until the

then

press

2nd-O and the last

you

and the X-3 will

2nd-9. Another

wanted,

automatically

lights,

quick way

entered will

key

can wait six seconds

you

the

proper keys

the 0

key

clear or

instead

0

disappears

to clear an incor-

be

to

press

erased.

of the

F

WATER TEMPERATURE

Water

temperature

the activities of
the

temperature

down their metabolism so that
much food as

Most fish don't

has an

all fish.

they

spawn

Fish

of the

surrounding

consume in the summer.

unless the water

AND

THERMOCLINES

important—if

are

blooded and their bodies are near

cold

water.

can

they

not

During

only

temperature

row limits. Trout can't survive in streams that

other fish
during

eventually

the summer. So fish will do without food rather than venture into

water that is too hot or too
ture

change

wider

range

as

temperature
within which it tries to

water lie at the level that

are the most comfortable.

they

die out when stocked in lakes that remain too cold

others will shift

cold;

as one-half of one

slight

tolerance than

stay. Schooling

provides

degree.

others,

this

temperature

each of them has a certain

SURFACE

cLurrER

23

Figure

controlling—influence upon

the

utilize about a fourth as

winter,

this slows

is within rather nar-

too

get

position

While some fish have a

fish

suspended

in

warm;

for a

which,

bass and

tempera-

over

deep

we

assume,

The entire

except

the

display may

digital

be erased

numbers

RANGE

gets

expand

range

upper

the X-3 will

shallower or

the

can be set

limit than 10 feet.

automatically

goes

or look at a different

range,

anywhere

Although
tom

to
The

10 to 999 feet on the lower

the

AUTO RANGE

When the X-3 is first

be turned off

may
manual, pressing keys

this:

2nd-B.)

corner of the
ability

press
tom and

The AUTO RANGING annunciator in the bottom

display

has been

the 2nd-8

place

turned

anytime by pressing

in

will

tumed off. To return to the AUTO RANGE

keys again

it in the lower

by pressing

turned

(if

deeper,

limit,

on)

change

there

from 0 to 989 feet

provided

18

tAUTO

the AUTO RANGE function is enabled. It

on,

sequence
disappear, signifying

and the unit will

4/5

the 2nd

as

just

of the screen.

2nd-0-O.

will be cleared

the

range

are times when it is desirable

segment

Everything

from the

whenever the bot-

of the water below.

on the

upper

the lower limit is no closer to

RNG

then the 8

key,

described will be shown like

the automatic

automatically

display.

limit and

key. (In

right

ranging cap-

mode,

this

hand

simply

track the bot-

PDF compression, OCR, web-optimization with CVISION's PdfCompressor

27

8

SCALE

There are ten scale

determine what the

help

is 0 to 60

range

as a

(such
times six feet=30

ranges

in

MARKERS

feet,

was next to

fish)

multiples

SCALE

feet).

markers

then

printed

of a

depth

each mark is

the 5th

To make it easier to

i.e.

often,

10, 30, 140,

c::

SENSITIVITY/CHAR

•iui

1llmm36

on both sides of the X-3's

is. For

target

line,

to six feet. If

equal

then it is 30 feet

use the

etc.

example,

depth

if the

the

deep (5

scale,

Ii.--.——

—

12

—

24

48

display

depth

target

lines

use

to

Remember,

to

develop

the main
The

depth

to the

shallow
the

narrow cone diameter and the resolution

the

display.

Compared

the

pixels (dots

Therefore,

Very
show a

Large

deeper

high enough

therrnoclines,

One of
ment of the

better the

as

possible

deep water,

there must be some

the arch.

engine

in

gear

Usually

this means

at a minimum

of the water will affect the size

cone

water,

the X-3

small fish

partial arch,

fish will

water There will

the best

screen resolution will be.

diameter. For

angle

the

to a

paper graph,

on the

probably

arch,

to

get

etc.

ways

water,

without

signal displayed

the X-3 cannot

screen)

cannot show fish arches as well as a

will not arch at

or a

shape

but the

sensitivfty

be times when the

fish

arches because of the

to

fish arches is to

get

for

example

getting

too much noise on the

this method should work to

movement between the boat and

example,

on

are much

similar to an

40 to 60 feet. The smaller the

Then,

at

trolling

throttle

and

setting.

shape

if the cone

the X-3

must be turned

may

limitations of

show as fine detail because

larger

while medium sized

all,

arch,

sensitivity

expand

turn

up

display

slow

very

of the fish arch due

passes

not arch at

than

a

paper graph's.

graph.

if

they're

up, especially

cannot be turned

surface

heavy

or "zoom" a

the

sensitivity

screen.

fish arches.

In

the fish

speeds

over a fish in

in

with

due to

all,

will

fish

water

deep

in

clutter,

seg-

segment

as

high

medium to

the

6

Figure

will

imme-

——"OHIO

P1

LOWER LIMIT

To

change

999 feet and then
diately change

the lower

to the new

limit,

press

the LOWER LIMIT

press

depth range

LILI AUTO.

RANUING

F LOW1

LIMIT

J

the lower limit desired from 10 feet to

The

and

key.

display

display

the new lower limit at

the bottom of the screen.
The lower limit
tion is on.

However,

of the bottom while the unit is in the AUTO

the

and the lower limit is 75
limit of 55 feet were entered on the

keep

For

entry

the lower limit

PDF compression, OCR, web-optimization with CVISION's PdfCompressor

may

be

changed anytime,

even if the AUTO RANGE func-

if a lower limit is selected that is less than

RANGE

example, suppose

feet

setting

the X-3 is in the

with the bottom at

keyboard,

of 75 feet.

9

60 feet If a new lower

the X-3 would

mode,

AUTO

the

it won't

RANGE,

chirp,

depth

accept

mode

and

Figure

26

22

FISH SIGNALS

The

signals displayed

shaped markings
created

by noise,

or the

on the X-3

in certain

solid,

by

patterns,

continuous

fish can be identified

as

opposed

markings

to random marks

made

various

by

the bottom.

by

For

example,

to set

the

range

from 0 to 31

feet,

3-1 -LOWER LIMIT.

press

Individual fish
separates

shown
sound is shown as "A"

ter

of the

If a

but not
pointed straight

adjust
and error

Figure

them from their

below. The distance to a fish when it moves into a sonar's cone of

of the

cone,

cone,

arch occurs most of the time on

partial

back

it until the fish show the distinctive arch. This

until the correct

21

at

can,

the distance to it will be

be

times,

Figure

distinguished by

stationary surroundings.

When the fish has moved into the cen-

21.

the distance will increase

or

down,

vice-versa)

down. If the transducer is mounted on the

mounting angle

it could be the transducer is

shorter,

as shown in "C".

again

your

is achieved.

a characteristic arch that

The reason

"B" and as it moves out

unit

(the

may

for this is

mark curves

not

transom,

take some

trial

up,

I'll"

AP\c

—III 0

LOWER LIMIT

NOTE:
actual
bottom

Although

depth

conditions,

the maximum

that the X-3 will reach

UPPER LIMIT

It is often desirable

detail. This is made
To

change
(any
only

limit than 10 feet.
upper

larger (20,

the

number between 0 and
restriction on

limit cannot be set

upper

30, 120, etc.)

the

and

to

expand

possible

limit of the

the

upper

In other

is

.p

lower limit of the X-3 is

is

dependent

of the transducer installation.

quality

UPPER

I

LIMIT

a section of the

on the X-3

screen,

989

feet)

limit is that it must not be closer

words,

closer than 71 feet A ten foot

any

required.

by using

simply

and then the

if the lower limit is

the water

on

display

the UPPER LIMIT

the desired

press

UPPER LIMIT

set to 81

Figure

999

the

feet,

conditions,

to show more

depth

key.

to the lower

the

feet,

segment

7

key.

The

or

and lower

Upper
ments from

expand
chosen,

equal

PDF compression, OCR, web-optimization with CVISION's PdfCompressor

25

or "zoom"

then

to 1½ inches

limits

the surface to the bottom and

a

the screen resolution is 1½". This means

when a ten foot

may

portion

be set in various combinations

of the

display.

nearly anywhere

If a ten foot

segment

is chosen.

10

to show

in between to

segment

seg-

is

that each dot is

Example:

LOWER LIMIt

Set

range

to 16 to

31 feet Press:

1-6-UPPER LIMIT then

3-1

-

The

20

while the 8

ment,

is

the

degree

(300

more desirable because it

sound

transducer is

degree

feet—fresh

energy

is used

is concentrated in a

water,

almost

always

in salt water In a

mostly

100 feet—salt

can

penetrate

the

best to use in fresh

water)

to much

smaller area.

water environ-

deep

the narrow cone

deeper depths

water,

angle

since

8

Figure

NOTE: When the X-3

be

changed

at

the AUTO RANGE
will

keep

the bottom

DIGITAL

A

complete

criminates between the valid bottom
thermocline,

tom

depth.

mode the X-3
Scroll

manual).

When the X-3 is

screen.

digital

or

surface clutter

It

may

modes described in the

may

is in the AUTO RANGE

anytime.

mode,

displayed

sonar is

be used at

be in

(with

turned

on,

If the

upper

the X-3 will

in the lower ¾

15

(PtGrTAL

incorporated

The

anytime,

the

exception

Advanced

the bottom

UPPER

LIMIT

the

limit

continue to select a lower

mode,

is

changed

portion

into the X-3. It

echoes and

digital

in

conjunction

display

false

will

upper

while

of the

automatically

echoes from

show

with

of FASTRACK

will be

section

displayed

Operation

depth

limit

the unit is in

limit that

screen.

the bot-

only

other

any

or

High Speed

of this

on

the

may

dis-

fish,

Both the 8
readings,

model

low

tells

because

edge

whether

you

degree

even

of

Salt water boats need

anti-foulant
nacles and other
er's

sensitivity.

decrease the

carried

paints

transducers.

SIGNAL

Because

you

passing.

wide

rows

absorbs the sound waves and

sitivity.

bar. As the boat

ity

cally

sensitivity
increases while in the same

over a soft bottom. If it
course,

change,

rocks or

Big

bottom,

approach a post
extending

INTERPRETATION

your

an accurate

A bottom of firm

signal.

down,

If

you

increase the

bar will

as the water

also.

the

distance

above the

and the 20

are

you
signal

you

the bottom

seeing

shows

are over

though

the

to have the transducer

to

paint

If the automatic

then it means that

have the

stumps

prevent

marine

Do not use a

transducer's

most marine

by

growth

X-3 is both

picture

or a

of the kind of bottom over

sand, gravel, shell,

automatic

passes

sensitivity

help you

decreases,

depth

on

a smooth bottom send back

depending upon

tree

bottom

organisms

metal based

sensitivity

extremely

sensitMty

over the mud

to

in

depth

increases or

stump,

signal.

degree

you

dealers

transducers

is

signal

more of

the true

rocks, mud, dropoffs,

will cause a

much wider on the

the bottom.

depth.

painted

from

growing.

decrease in the transduc-

anti-foulant

also. There

specifically designed

sensitive and

or hard

is turned

have moved over a mud

you

returns a weak

sensitivity

maintain a

determining

of

water,

then it

their

it will be

signal.

turned

bottom,

good

if the bottom is soft or hard. If it

then the boat has

is over a hard bottom. Of

decreases,

height

clealry

accurate

give

Remember, the shal-

The rest of the

etc.

with a thin coat

If

unchecked,

paint

are

special

powerful,

which

your
returns

clay

and the

off,

Turn

watch the

on,

bottom

20

degree

signal

as it will

anti-foulant

for

it

can

give

boat is

a

fairly

nar-

signal

bottom. Mud

the sen-

up

sensitiv-

the X-3 will automati-

bottom

the

signals

If

you

visable

The

signal.

moved

sensitivity

watch as

will

above the

you

as a short line

of

bar-

11

PDF compression, OCR, web-optimization with CVISION's PdfCompressor

24

TRANSDUCERS AND CONE ANGLE
The sound waves from

shaped beam,

the

outside

much like the beam frOm a

edges

the transducr

of

the cone is called the cone

down ihto the water in a cone

go

flashlight

The

angle.

angle

betWeen

Lowrance offers a choice of transducers with either an 8 or 20
cone
In other
Lowrance transducer of
and no loss of
ers' transducer will result in a loss of

Generally,

for

operating

angle
the 20

degree

that will

angle

words,

wide cone

allows

degree

transducer covers

Cone

Depth

_________ 50'

interchange

Lowrance sonar instrument can be used with

any

the same

performance.

in shallow to medium water

you

Diameter

angle

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

cone

covers

Angle

with

However,

transducers

an area that's

about a two foot circle.

only

of the 192 kHz sonar

any!

frequency

the use of

performance.

(20 degrees)

depths.

about six feet across. The 8

without

any

The 20

retuning

other manufactur-

are

ideally

degree

§:-

50

7ft. 18ft.

14 35••

boo

liso

21 53

200

28 71•

degree

products.

any

of

any kind,

suited

cone

For easier
pressing

again.
2nd-2.

reading,

2nd-2.

The numbers must be

BOTTOM

DEP11-l

the size

To return them back to the smaller

of the

displayed

numbers can be doubled

digital

on the screen before

iumIIIHhi

size,

Figure

press

you press

9

by

2nd-2

100'

150'

20

Figure

F: Li

10

200'

Figure

8°at3db

PDF compression, OCR, web-optimization with CVISION's PdfCompressor

23

!

12

To turn the

Even if
digital

signal,
digital
stop,

the bottom

digital display

the

digital

sonar will still continue to function. If the

the chart

numbers are

the

but

display

digital

signal.

If the chart is in the
the bottom

This

all

times. In

depth

an accurate means of

gives

the X-3 can be turned into a

fact,

2nd-0-5. This will

and

signal,

To

display

in the chart section

key

increase the size of the numbers for

the bottom and other echoes

or back on

off,

again, press

N OTE

numbers are not

will

being displayed

will flash the last valid bottom

freeze

as it

clear the screen of all

mode,

changes.

of the

being displayed

until the

stop

the

digital

on the

screen,

digital display

It does not freeze when the chart

determining

echoes, including

again, press

keyboard.

digital

finds

depth

the

precise

digital

easier

2nd-5.

on the

screen,

loses the

bottom

the bottom. If the

the chart

will

sonar

display

until it

regains

continue to show

bottom

by pressing

the bottom

viewing.

the

STOP/RESUME

the

will

does.

depth

at

AUTO SENSITIVITY

Whenever the X-3 is in the

of the unit to three

tivity

bottom

The

mode. This

is not
changed,

tom

For

the

amount
steps

would
There

auto-sensitivity

The first is to

or

minimum
same is true if

the

sensitivity

signal. (There

sensitivity may

may

enough

to show fish or other detail. Once the

the X-3 will increase the

then add the level that

signal,

example,

bottom,

of

press

sensitivity

if it

it will add three more

of

sensitivity up

sensitivity

be

displayed

are two

press

the left arrow

required

bar will move to

chosen.

be desirable if the level of

ways

mode.

you try

steps

are 32

be

adjusted

took the X-3 five

to 24

could be

at this low

of

adjusting

either

key

to

keep

to

go

auto-sensitivity

above the minimum

of

steps

while the X-3 is in

sensitivity enough

you programmed
steps

steps

a total of

(for

subtracted,

sensitMty setting.

the

the

right

arrow

mode,

sensitivity available.)

sensitivity

of

sensitivity

for a total of

32) may

however

sensitivity

while the X-3 is in the

key>

<to decrease it If the

the bottom

above 32

the left or

the X-3 will

signal,

As

steps.

you press

right, according

it

will

required

the

auto-sensitivity

adjust

to

the sensi-

pick

that the X-3

sensitivity

to

in.

has been

pick up

to find and lock onto

If

eight

be added.

only

desired,

Or,

the bottom

to increase the

value

below the

goes

"chirp'

the arrow

to the amount of

the

up

picked

the bot-

any

three

signal

sensitivity

The

key,

ALARMS

The X-3 has two

alarm

requires

then "sounds off" whenever

the

boundaries set

The

depth

whenever the bottom echo is detected
alarm's

then
ously

upper

switched back and forth.

will

and

alarms,

both an

alarm also allows an

and lower limits. Both

be treated

by

upper

the

a chart

separately

alarm and a

limit and a lower limit

an echo

upper

However,

(such

and lower limits.

upper

chart and

in

13

alarm. The chart

depth

as a

and lower

outside the boundaries set

they

this section.

setting.

fish)

limit

depth

cannot be used simultane-

The alarm

is

detected inside

but it sounds

alarms can be

by

set,

the

The second method allows
number
that it will
the

bottom, press

to ten

steps

the total number of

OTHER

If an incorrect

enter the
and it will erase the last

Press 2nd-FAST or SLOW to

the chart

ing

When

changing

tance between the two is ten feet. If a distance smaller than ten feet is
pressed,

if the

ple,
would

disregard

on the

keys

always

keyboard.

be ten

steps

the 1 -0-AUTO

above the minimum

steps

TIPS

is

entry

desired number.

speed.

the unit will move the

upper

made,

keystroke.

the

upper

limit was 0 and 9-LOWER LIMIT was

the 9 and set the

to enter the amount of

you

For

example,

above the minimum

keys.

required,

to

The

sensitivity

instead of three.

is 32.

wait six seconds for it to

Or, press

or lower

2nd-O within six seconds of an

display

the chart

limits, remember the minimum dis-

to a ten foot

range

limit to ten feet

lower

22

the

adjust

required

will then

disappear,

bar without

speed

separation.

entered,

steps using

sensitivity

to lock onto

increase

Remember,

then

chang-

For

exam-

the X-3

the

so

entry

PDF compression, OCR, web-optimization with CVISION's PdfCompressor

AUTO RANGE WITH ZOOM BOTTOM

An

optional

TRACK. When the X-3 is in the

range
upper

a "window" can be used to "zoom" or

and track it as the bottom rises or falls.
For

example, suppose

window around the

upper
dow. The

may change

this window as it

expand

auto-range

Auto

that will
limit is

and lower limit that will

keep

normally

upper

limit of the

feature is AUTO RANGE with

Range

the bottom

set to

the bottom is 85 feet

bottom, press

auto-range mode,
signal

unless

zero,

5-0-2nd-8. The X-3 will choose an

place

display may

to 95 feet. The bottom will

goes deeper

or shallower

or "zoom" the lower section of

function.

in the

lower 4/5 of the screen. The

have

you

expand

the

the area near the bottom

deep.

bottom

read 45

be tracked and

This is useful if

the

display

TRACK

ZOOM BOTTOM

it

To

signal

feet

a lower limit

picks

in a

it

a 50 foot

fifty

changed

display

while the lower limit

always kept

without

you

disabling

However,

foot win-

inside

wish to

the

CHART

The chart alarm can be

an
To set the chart

keyboard.

ALARM

echo is detected

alarm, press

The words CHART ALARM will be

thought

(such

of as a fish alarm. It wil sound whenever

as a

or a school of

fish,

the SELECT

key

displayed

corner of the screen. To view the Chart Alarm

LOW

SET or DEEP SET

side of the screen. This is the alarm "window".
between the

and

deep

alarm "window".

and bottom of the bar will sound the alarm. Both shaDow

top

ends of the bar

A vertical bar will be

keys.

be

may

adjusted

— — M

to make a smaller or

$5

inside its window.

fish)

on the alarm section of the

in the lower left

setting, press

displayed

echo that

Any

either SHAL-

on the left

appears

larger

uuuum

0

r:.

NOTE

The

Auto
To exit from the Zoom Bottom

Ranging,

and lower limits cannot be

upper

with Zoom Bottom Track mode.

Range

also. To return to Auto

AUTO.

A

35

changed

Track,

press

Range only,

19

AUTO.

RANGING

2nd-B. This will turn off Auto

press

Figure

when the X-3 is in the

2nd-8

again.

CHART

ALARM

BAR

OR

"WINDOW'

CHART

ALARM

ANNUNCIATOR

To

press
arrow

alarm
press

move
window
screen for six seconds and then
alarm bar at

is

visable,

bar will be

the

adjust

the

up

to move the

key

window is set
either the

shallow,

deeper

anytime,

then

displayed

top (or shallow) alarm, press

arrow

key

in

arrow

up

or

press the

After

you

either

press

for another six seconds.

I.

...OHARTALM AUTO.

to move the

of the window

top

the same

to make the bottom

key

down arrow

release the

make certain that the CHART ALARM annunciator

SHALLOW

Figure

ALARM RANGING

the SHALLOW SET

top

deeper

manner Press the DEEP SET

The bottom

window

of the

part

to move the bottom of the

key

the bar will remain on the

keys,

If

disappear

SET or DEEP SET

wish to view the chart

you

or the down

up,

of the window

keys

11

key,

of the

part

key,

and the

then

then

PDF compression, OCR, web-optimization with CVISION's PdfCompressor

21

14

If the chart alarm is set off

and the ALARM can be seen at the bottom of

lithe

since

range

it

operates

is

changed,

independently

the chart alarm

a fish or the

by

and does not track

may

I'll

The note
first

tor at the bottom of
note

key

the audible tone is on

set,

on the

key

again.

Clearing

To turn the Chart Alarm

Alarm,

Deep
in the bottom left hand corner of the screen will

alarm is no

switch the X-3 from the chart alarm to the

alarm

settings

the chart alarm

turns

the audible tone off or on. When the alarms are

which

the

display.

keyboard

once. To turn it

the Chart Alarm

or

press

longer

will remain in

settings.

off, press

2nd -0-SELECT. The

in use. Note:

memory. Pressing

can

be seen

To turn the audible tone

back

the SELECT

annunciator "CHART ALARM"

Simply pressing

depth

bottom,

need to be

on, press

the alarm

the

display

range sethngs.

the note annuncia-

by

the note

to

switch over to the

key

go off,

showing

the SELECT

alarm. All of the chart

2nd-0-SELECT will erase

will sound

changed also,

off,

press

key

that

the

will

key

the

FEET-FATHOMS- METERS

The X-3 can

is first turned

meters, press

showing
displayed, press

the letters "fa" will

6

key again

meters. After six

back to

press

display

that

the X-3 is in the feet mode. While the letters "it" are still

and the

feet, press

2nd-6 at

unit is turned

on,

the

the

display

in either

depth

reads in feet To

2nd-6. The letters 'ft' will be

the 6

key again.

display

The

range

will show the letter "M" and

appear.

seconds the letters will

2nd-6-6. To see which

time and

any

and then back

off,

the letters

16

FT/FA/M

L

feet, fathoms,

change

displayed

Now the letters "ft" will

on,

has

disappear.

ft fa,

it will

changed

range

always

to fathoms. Press the

To

mode the unit is

or m will

return to feet.

or meters. When it

it to fathoms or

on the

screen,

disappear
change

change

appear

and

to

the

range

in,

When the

DEPTH

The

and/or audible
point

water that is

is

exactly opposite

off

NOTE: The
To use the

annunciator

first turned

alarm, press
then

feet is

display

water

NOTE: The maximum alarm

ALARM

Depth

The

only by

press

desired,

in

large

depth goes

Alarm

is

actually

signal

alarm will

deep

deeper

than the alarm set

from the

the bottom

must be on in order to use the

digital

alarm,

depth

appears

both alarms are

on,

the desired

the DEEP SET

press

numbers for 6 seconds and then

below 55

two alarms. The shallow alarm

when in water that is shallower than the alarm set

a visual and/or audible

give

alarm.

chart

not

signal,

press

in the lower left hand corner of the screen.

depth using

key.

5-5-DEEP SET. The number 55 will show in the

feet

fish or

by

the SELECT

automatically

For

example,

the alarm will sound.

depth setting

15

Note that this alarm window

point

the

Also,

other echoes.

any

until the

key

set

the number

if a

Deep

is 999 feet

signal

alarm can be set

depth

Alarm.

Depth

DEPTH

to

keys

disappear.

zero.

on the

alarm

To

a visual

gives

when in

ALM

When

set the

keyboard,

setting
Now if the

Deep

of

55

28

20

Figure

18

PDF compression, OCR, web-optimization with CVISION's PdfCompressor

FASTRAK

The FASTRAK causes

at a

the bottom

the bottom or other echoes

or fall

glance.

echoes
horizontal lines. As
the lines will rise
information

including

FASTRAK

r71

the X-3 to

signal

accordingly.

J

the

display

bottom,

will be converted

This

quick, precise depth

gives

short,

or other

straight

fish, trees,

into

moves shallow or

deeper,

DEEP

ALARM —

SET

iuuammm•iuu

—SE;

p

SHALLOW

ALARM—

SET a..

""WI:

If the auto
be disabled when

To start the FASTRAK

sensitivity,

the FASTRAK mode is enabled.

auto

ranging,

mode, press

and

digital

2nd-7.

functions

eorroM

are

FISH

on,

they

will

DEPTH AIM ,? RANGING

Clearing

A

quick

done
alarm that is
and
annunciator is

press

will

the

method

by pressing

currently

settings, press

deep

2nd-U-SELECT

off

showing

go

92

AUTO.

12

Figure

Depth

Alarm

to erase or clear all functions of the

2nd-C-SELECT.

in use. For

the SELECT

displayed

in the bottom left corner of the

and it will

that the

This erases all alarm

example,

key

immediately

alarm is no

longer

to disable both

until the DEPTH

be cleared.

in use.

DEPTH AIM 1

Figure

alarm can be

depth

settings

the

ALARM

screen,

The annunciator

92

13

shallow

AUTO.

RANGING

for the

then

17

Figure

note

To exit

auto

The

the FASTRAK

sensitivity,

mode,

auto

ranging,

press

2nd-7

and

digital

again.

functions

will still be off after

the FASTRAK mode is turned oft

PDF compression, OCR, web-optimization with CVISION's PdfCompressor

19

The,

first

tor

note

LILJ

set,

.

key

aäain.

W turns the

key

the audible tone is on which

at the bottom of the

on the

keyboard

audible tone off or on. When the alarms are

can be seen

display.

once. To turn it back

To turn the audible tone

16

the note annuncia-

by

press

the note

on,

off, press

key

the

LIGHT

A

light

turned

the

lights

lights

is

provided

the

on,

will

will also

for

operation

will flash for 6 seconds. Press the

lights

on. To

stay

off

when the X-3 is turned off.

go

DISCRIMINATION

Noise is
sonar units. Noise is
an electrical or acoustic

the noise can

cases,

quite

often the

any

produce

19

LIGHT

of the X-3 at

turn the

biggest complaint

undesired
source,

unwanted marks on the

off,

lights

signal

or a combination of

When the unit is first

night.

the 2nd-9

press

fishermen

and it can be

have about their

the two. In both

2nd-9

keys

The

keys.

caused either

display.

and

by

ADVANCED

HIGH SPEED SCROLL

If

there is much noise on the

the

High Speed

fish. When this feature is turned

will

nal)
displayed
displayed
separates

lines that

To turn on
To turn off HIGH SPEED

be scrolled

Scroll mode

as
as

the

may

HIGH SPEED

extremely

dots,

single
very long

fish from the noise.

or

may

not arch.

screen,

may

fast across

however true

lines that will stretch

SCROLL,

SCROLL,

OPERATION

HI

14)

or when

be effective in

all

on,

targets

travelling

showing targets

(including

the screen. Noise will still be

echoes such as fish will be

target

out across the screen. This

Random dots are noise. Fish are

2nd-4.

press

2nd-4

press

again.

at

high speeds,

the bottom

such

sig-

long

as

DISCRIMINATION

OFF(O)

The

Discrimination feature on the X-3

from the
then

1,

Discrimination level is
display, press

DISC
displayed.

receiver,

displays only

and 2. 0 is

There should be

key.

determines which ones are noise and

the

legitimate

"off", 2 is the

the level

highest setting.

automatically

of Discrimination

an immediate

24———

•

...

-

r1

'F—

processes

echoes. Discrimination

When the X-3 is turned

set to 1. If noise is

desired,

change

DISCRIMINATION

LEVEL

14

Figure

all

incoming

echoes

eliminates

them,

has two levels—

on,

on

then the

2)

the

present

and

I,

(0,

in the amount of noise

the

iiiii•iHii

!i•i

;;: !C

15

Figure

It is

important

sensitivity,

turned off. When the HIGH SPEED SCROLL
will still

to note when the HIGH SPEED

auto

ranging,

be off.

AUTO.

•,••

:4"-: •.-..

r.

I:

HIGH SPEED

OFF

and the

ri'

-r

: .1

:ç

AUTO.

RANG! NO

SCROLL HIGH SPEED SCROLL

digital

(including

innimuu

SCROLL is

the

is turned

n

LI

ON

enabled,

digital alarm)

these functions

off,

Figure

auto

will

16

be

17

18

PDF compression, OCR, web-optimization with CVISION's PdfCompressor