Lowrance X-40 User Manual

(

X-40

CRYSTAL

AND OPERATION

ELECTRONICS,

DR., TULSA,

UTHO

IN U.S.A.

LIQUID

INSTALLATION

•eLOWRANCE

12000 E. SKELLY

988-0105-09

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GRAPH

MANUAL

INC.

OK 74128

TABLE OF

POWER
NOISE

TRANSDUCER
KEYBOARD

DISPLAY
OPERATION

ON

CLEAR
AUTO

SENSITMTY
CHART SPEED

SCALE
RANGE

LOWER LIMIT
UPPER

AUTO BOTTOM
GRAYLINE

DIGITAL

TENTHS
ALARMS

NOTE KEY

ZONE ALARM

DEPTH ALARM
LIGHT

DiSCRIMINATION

8CC

FEET-FATHOMS-METERS
PULSE
COMMAND

MENU #1 - SPEAKER
MENU #2- GRAYLINE

MENU #3
MENU #4

TRANSDUCERS AND
SIGNAL

FISH SIGNALS
WATER

SURVEYING A LAKE
BAIT P1514

HOW

TO OBTAIN SERVICE

SCHEMATIC AND PARTS LIST
SPARE

SPECIFICATIONS

GLOSSARY

CONTENTS

CONNECTIONS 2

BASICS

INTERPRETATION

UM1T

TRACKING

VOLUME

-

SCALES

-

DIGITAL

INTERPRETATION

TEMP. AND

PARTS

CHECKS/LINES

AVERAGING

CONE ANGLES

THERMOCLINES

3
3

4

6
7
7

7

s

8
9

11
11

12

12
13

14
15

16

16
16
17

18
19

19
20

21

22

22
23

24
24

25
26
27

28
29

31

32

32
32

33
33

34

TRANSDUCER -The element of a sonar

energy

from the

echo strikes the
energy

TRANSOM MOUNT-

on ti .e transom o. t1

UPPER/LOWER

which is

1.

screen or
the lower limit
feet as the

VIDEO GRAPH
WINDOW

20

feet and a lower

ZOOM

-

A feature

transmitter Into ultrasonic

transducer,

received and

A method of

S I I...

e oat.

UMIT-These

paper.

-

The

upper

is at the bottom. For

limit and 30 feet as

upper

-

A

sonar unit that uses

A

segment

of the

limit of 50 feet creates

that

enlarges targets

it converts

displayed by

mounting

arethe

limit is shown

example,

the lower limit.

depth range.

system

that convertsthe

electrical

sound waves. When a

return

the sound waves into electrical

the sonar unit.

transducers or other sensors

limits

range

at the

displayed

of the

top

a 20 to 30 foot

a CRT or television

For

example,

display,

range

type

an

upper

on

the sonar

display.

has20

limit

a 30 foot window.

on the

display.

while

of

Copyright

© 1987 Lowrance

Elecfronios,

Inc. All

Rights

Res3rved.

37

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a 60 foot

REMOTE

has zero for the

range

-

An

Intelligent "repeater"

limit and 60 for the

upper

unit that receives

lower limit.

depth

from another sonar unit. A remote doesn't have a transmitter

However,
separately

RESOLUTION

it does have ft's own features that are

from the master.

-

The

of a sonar unit to

ability

separate targets

adjustable

other or the bottom.

-

RMS

A standard

SCALE

ofatarget, simply compare

markers on the

-

The

markings

display.

of transmitter

rating

on a sonar unit's

the

target's

power output.

display.

location to

To determine the

the location of the scale

information

or receiver.

and

operate

from each

depth

INTRODUCTION

Welcome to the world of

is a

high quality sonardesigned

X-40

automatically

by

by turning

just

finds and

it on. As

for both

displays

become

you

sportfishlng

professional

the bottom

familiar with

of its remarkable features. "Fine tune"

to

conditions

You can

shallower or

the most from

get

program

deeper

fish enters an alarm

each other.

Lowrance

Only

maximum

potential.

the X-40 to sound alarms

than a

preset depth.

zone. Zoom in and

gives you

your

the

sonar.

An alarm will also sound

separate

power

sonar.

Your Lowrance X-40

and novice users. The

depth,

your

the unit to

when the boat

fish from

to

adjust

and structure

fish,

try

some

X-40,

the surrounding

goes

when a

structure and

a sonar unit

to its

SECOND ECHO -Another echo that

of a

bottom,
returing

SECOND FUNCTION KEY

primary keys
other

function

SENSITIVITY

lncreasingthe sensitivity

echo. This is caused

target

strikingthe

surface of

by

thewater,

to the surface.

-

A button that converts the functions

on the

keyboard.

with two functions. You can switch functions

keys

key.

-

The

ability

Sonar unitswith a second function

of a sonar unit's receiver to

allows

weakertargets

registers

the sound

at

roughlytwice

waves

travellingtothe

to be

bottom

displayed.

the

depth

reflecting

off the

again,

of the

key

with the second

display targets.

Also called

"gain".
SCROLL SPEED - See CHART

SHOOT-THROUGH-HULL
sonar

signals

hull.

SUPPRESSION
ence or noise.

SURFACE CLARITY CONTROL- Reduces or eliminates undesirable
nals

displayed

THERMOCLINE

of water. Thethermocline

layers

to

pass through

-

A method used in some sonar unftsto

near the water's surface. Also called "SCC".

-Alayerofwatercaused bythe meeting

SPEED.

-

A transducer installation which allows the

a

fiberglass

providesthetemperature

hull without

cutting

a hole In the

eliminate interfer-

of warm

mostfish

and cool

prefer.

and

have

sig-

TogetstartedwithyourX-40,first

is where it all

begins,

the road. After

you've

and

improper

read these instructions

the rest of this manual in detail.

water,

when

the more

head to the lake.

you

X-40 will do for

your

INSTALLATION

Mounting

clearance when tilted for the best

allow wood screw

aluminum

back of thin

certain there is
transducer cables.

hole in the base of the

the

mounting

through

hole and

the bracket and dash.

rubberadhesive

the X-40 in

Install

or

panelswith

fiberglass panels

enough

You can route the

surface. The smallest hole

is

gimbal

Pass the transducer connector and

3/4".

bracket. Then

(RTV).

any

through

metal screws. Place a

sheet

room behind the unit to attach the

power

gimbal

After

routing

Offset the bracketto coverthe

to secure the

bracket. Then

readthe installationsection.

installation can cause

and installed

The more

you.

convenient

viewing angle.

bolt

mounting.

know when

you

Take this

location,

Holes in the bracket base

piece

mounting

and transducer

cables

pass

that will

push

the
the

cable wire down

power

cables,

fill the hole with silicone

problems

your

you get

manual

for reference

provided

Attach the

of

plywood

hardware.

through

them

through

one connector

pass

cable

up

majority

This

down

read

X-40,

to the

there is

bracket to

onthe

Make

the

and

7/B"

power

a hole in

through

of

the

through

the hole.

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36

1

Power Connections

TheX-40

cable to an

interference,
Interference shows as random dots on the

engine

or an

operates

accessory

then

attach the cable

accessory

from a 12 volt

or

power

is on.

buss. If

directly

battery system.

you

have

problems

to the

display

Attach the

with electrical

battery.

whenever the

Electrical

power

boat's

on the screen.

in

black, stronger targets

Signals

of the bottom. In other

hard bottom

or

weedy

narrow

returnsastrong signal causing

bottom returns a weaker

line.

gray

weaker than the GRAYLINE

are

words,

It also

gray.

can tell if the bottom is soft or hard. A

you

signal

clues to the

gives

awide

which is

gray

setting

are

compostition

line. A

soft,

emphasized

displayed

muddy

with a

The

is

negative

power

attaches to the

splice
as close

protects

fuse.

the

wires are reversed.

attached

power

or

ground.

cable with the

ordinary

to the

the

power

The

X-40 has reverse

correctly.)

3-AMP

cable has two

crimp

battery

#18

gauge

source

power

cable and

red is the

wires,

Attach the in-line fuse holder to the red wire on the

positive

connector. The other end of

or

accessory

buss. If the

cable is not

wire onto it. Be certain that the fuse

(battery oraccessory buss)

yourX-40

polarity protection.

(However,

in the event of

No

the unit will not work until

lead and black

the fuse holder

long

enough,

holder is

as

possible.

a short. Use a

damage

will occur if

the wires are

This

3-amp

IN-DASH -A

the face of the sonar is

-

kHz

operates

-

LCD

sonar

-

LCG

NOISE
ignitions systems,

the

engine

random dots or

OPERATING FREQUENCY

and

receiver are tuned to.

OUTPUT POWER

sonar unit installed

flush or

Kilohertz. A

at 192

Liquid

crystal display. Thescreenordisplay

instrument.

measurement of

Kilohertz.

through

nearly

(192,000 cycles per second).

Liquid Crystal Graph.

-

Any

undesired

radios,

signal.

etc. Acoustic noise is caused

Electrical noise

or other mechanical sources. It

lines.

-

Frequency

-Theamplitude

of electrical

a hole In the boat's dash.

so with the dash.

frequency.

that the sonar unit's

sonar unit to the transducer. Measured in

power,
PEAK-TO-PEAK

the

deeper

PIXEL - The small dots

a sonar unit can

-

A measurement of

or

squares

read,

and more

the transmitter's

on a

liquid crystal display

Your Lowrance sonar

of a

Liquid Crystal Graph

is caused

bythe

the

on the

higher

appears

energytransmitted

watts,

detail can be

power output.

Usually,

by engine

vibration of

display

transmitter

as

fromthe

the

output

displayed.

or Crt.

12

VOLT BATTERY

2

PIXEL DENSITY -The number of

display.

in the vertical.
PULSE LENGTH

measured in
resolution. For
inch resolution.

RANGE

The best

-

The section of water shown on the sonar

resolution is obtained when a

-

The amount of time that

micro-seconds. The shorter the

example,

a 30 micro-second

pixels per square

35

inch on a

number of

high

liquid crystal

are

pixels

the sonar transmits. This is

pulse length,

pulse length

display.

the better the

is

equal

For

to a one

example,

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NOISE

GLOSSARY
ANCHOR WATCH

when the boat drifts

points.

A

into shallower or

selling

of the sonar unit's

deeper

-

BACKLIGHTEDAdisplayorkeyboardillUminatedfrombehitX1

Back-lighted displays
navigating.

CAVITATION

transducer

or
CHART SPEED

recorder.
graph. (Also

CONE ANGLE

transducerswith

-Air bubbles created

through

-(1)

The

(2)

speed

"scroll

called

-Width of the transducer's cone

coneanglesfrom 8to45degreesto

and

keyboards

water.

The

of an

speed

image

speed").

are essential

bythe high speed

of the chart

across the screen of a

alarm. The alarm activates

water than the alarm set

byalight.

when

night fishing

movement of a boat

a

on

paper

paper

liquid crystal

of sound. Lowrance

suitthevarying

of fishermen.

-

CRT

Abbreviation for Cathode

DEFINITION
resolution

-

The

display

of a sonar unit's

ability

can show

Tube.

Ray

more detail

See Video

display

Graph.

to show detail. A

than a low resolution one.

or

graph

has

needs

high

Minimize electrical noise

other

possible

generators
instrument

sources

is the

panel.

which radiates HF

power
pump

away

and transducer cables

can sometimes radiate

wiring

from those wires.

of electrical interference. One of

engine's wiring

harness

This

frequency) energy.

(radio

VHF radio antenna cables radiate

than even

power

cables.

speed

This noise is

the transducer.
rpm.

Usually,

noise. Thefasteraboattravets,

noise on the
owner's manual for

the

engine's wiring

and transducer cables as far

If interference

increases,

not

If the noise

air bubbles

display.

begins

then a

Stop

probable

electrical,

the

boat,

does not increase on the

passing

To eliminate

proper

routing

by

the

power

cable

the

harness that runs

usually

away

contains awirefor the

from the

noise so

RF

harness.

at slow boat

It

is

away

speeds, worsening

cause is acoustic noise,

but rather

put

mechanically

the

engine

overtheface of thetransducer

from the

For best

engine wiring.

to

try

keep

energy

important

as

at

higher power

to

possible

induced noise from

in

neutral,

display,

then

results, keep

the X-40's cables

and increase the

the moreair bubbles increaseand

this

problem,

mounting techniques.

read

from

away

largest

engine

noise

to the

tachometer

the

Also, bilge

levels

the X-40's

keep

from VHF radio

as the boat

or cavitation.

it is cavitation.

createacoustic

generate

the transducer

DISCRIMINATION

-

A feature

display onlytrue target
cuts out false

FISH ALARM

FISH ARCH
upsidedown

FLUSH MOUNT

bottom of the

signals

-
"V" orarch. This

transducer flush with the bottom

GIMBAL BRACKET

from other sonar, noise, thermoclines,

-

An alarm that activates

A sonar with

-

transom mount transducer

A

-

A bracket

The sonar unit can rotate

GRAYLINE -Thisfunction shows

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thatallows the sonar to eliminate

information.

Discrimination on

when a fish is detected.

resolution

good

distinguishesfish

used to install

displays

in the bracket for the best

the relative

34

Lowrance

fish

signalsfrom

that is installed

of the hull.

a sonar unit

viewing angle.

strength

of

signals displayed

noise and

products

and more.

signals

with an

othertargets.

with the

permanently.

TRANSDUCER

Installation

in a

separate package.

install the transducer.

instructions for the transducer are

Please

read the instructions

3

with the transducer

carefully

before

you

KEYBOARD

This section

Operation

GRAYLINE SET Press this

the

grayline

DIGITAL SONAR The

sonars in one

is the

graph, designed

echoes. The other sonar is the
designed

the
digital display

alarm

ZONE ALARM

controls the X-40's zone alarm. ft's
rnonly

(such

the alarm if It enters the alarm

UPPER LIMIT
LOWER

Umit

depth ranges.
and then

lowerlimit

the

Lower Limit

displayed

for

bottom

functions.

used as a "fish

as a fish or school of

LIMIT The

keys

press

key.

for the

depth

at the

BASICS

a brief

gives

section for a detailed

to

level.

housing.

one

only

depth.

off oron and

KEYS This

allow

you

Enter the desired

the

appropriate upper

The

top

determines the

key

bottom.

key

is

X-40

really

The mostobvious

to show all

purpose:

These

Upper

to show

turn the

keys

the the

group

alarm." A

will set off

fish)

zone.

and Lower

to select different

Limit

Upper

of the

keysets

display.

description

adjust

two

return

digital,

digital

cf

keys..—

corn-

target

depth

or

The

depth

explanation

of

SHALLOW

F

CLEAR][

of the

each

1

4

7

5121

UPPER

LIMIT

keyboard.

Read the

key's operation.

DIS PLAY

2

5

SOC

8

BTM TIlIC 9 I'T/FA/M

I)

PULSE

"ND

C

3
6

LowER

LIMIT
AUTO

11

JtI.IGHY

]

ON

SPARE

order,

to the

(Note:

Part

151-0071-00 Power

003-2249-00 Gimbal Knobs

PARTS

The

following

simply

above address.

Number

write the list of

Price

subject

is a list of the most

parts required

to

change

without

Description

Cable 6.75

notice.)

(w/washers,

003-2045-00 Gimbal Bracket
003-2181-00 Fuse Holder

(w/3 amp fuse)

988-0105-09 Owner's Manual

SPECIFICATIONS

Dimensions

Weight
Transmitter

Frequency

Output

Receiver

Operating

Sensitivity

Current

Power

5

3/4"H

1

3/4 pounds

192 kHz

600 watts

75 watts RMS

>

85 db

200 ma
500 ma

commonly

on a

slip

x 8

3/16W

to

peak

peak

temperature

(lights off)
(lights

on)

needed

of

paper

2

ea.)

x 2

5/8"D

typical

stabilized

To

parts.

and mail it

Price

3.95

7.75

3.95

2.50

CLEAR The
entry.

will see

you

C

CLEAR

erases the last

key

ft can also erase other

later.

features,

as

ON OFF
off. Toturn

To turn it

tone or
telling you

mand,

4

ThesekeystumtheX.4Oonand

iton,

simplypressthe Owkey.

off,

Pressing any key generates

"beep."

the OFF

press

This is the X-40's

that

it has

key.

accepted

way

a com-

a

of

Operating

Number

Depth

Capability

Voltage

of

pixels

9-15 vdc
192 x

64

(vertical x horizontal)

12,288

300'-SOO'

(with

500'-700'

with 8

Total

typical

20

degree transducer)

typical

degree transducer)

33

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BAIT FISH

The

importance

emphasized. They

Baitfish arethe

shad.
bluegill,

sunlight promotes
method of

fish will look like a

nearby,

Bait fish can also be the

and bass.

Most bait

fishing

is to usetheX-40 to find the baitfish

"cloud" on theX-40's

often

directly

bait fish to successful

of

are the

principle

planktonfeeding

food of all

young

foragefish,

of

game

fishing

game

suchas minnows and

fish,

fish concentrate within five feet of

the

growth

of the

plankton

on

which

first. A school of bait

display.

beneath the school of bait

Usually, gamefish

fish.

be over-

can't

fish In most

such as

waters.

crappies,

the surface where

feed. One

they

will be

SENSITIVITY These

graph's sensitivity.

adjusts

catly
sensitivity

over a wide

arrow
arrow

has

keydeoreases

increases it.

key

Its

sensitivity.)

S2steps,

range

(The digital

of conditions.

the

control the

keys

automati-

The receiver

allowing adjustment

sensitivity,

The left

the

right

KEYBOARD BASICS

CHART

trols the chart
chart

FAST.

the

it. The

starts

NOTE
alarm off or on.

The CHART

speeds, ranging

Pressing

chart

speed.

STOP/RESUME

the chart

KEY This

group

The X-40 has 10

speed.

from

the FAST

The SLOW

key stops

display.

turns the audible

key

con-

of

keys

to

slow

very

key speeds up

reduces

key

and re-

HOW TO OBTAIN SERVICE

If

have a

you

chance to

help

before

Assistance can often be extended

the Authorized

a service center

at

1-800-331-4105,

Customer Service Center nearest

nearyou,

toll free. Oklahoma residents call 918-437-6881,

collect.

Please detail the

be able to save

department

unit.

your

may

If the unit must be

It

damaged.

during

SCHEMATIC

send

$1

promptly.
Lowrance sonar unit.

is advisable

transit.

DIAGRAM AND PARTS LIST

If

desire a schematic and

you

.Oototheaddress belowandthe

Be sure to include

problem

sending

Lowrance Customer Service

Tulsa,

with

it in for

call

thefactory

problem you

you

returned,

to insure the unit in case it's lost or

the model and serial number of

Mail To:

12000 E.

Oklahoma 74128

sonar

your

unit, please give

repair.

telephone

by

to

you.

customer service

are

experiencing.

the inconvenience of

it

pack

parts

informationwill be mailed

Skelly

carefully

list for

Dr.

your

Lowrance

us a

or letter. Call

If there Isn't

department

The service

returning

it won't be

so

damaged

sonar,

toyou

your

2nd This allows

function. Notice that some of the

a small word

function label. The white

mary

designates

function

Then

function

AUTO

on It. "LIGHT" is the AUTO
function. Press the 2nd

key

a 2nd function. Activate a 2nd

by

press a key

printed

keyalso

to turn the

to have more than one

keys

in white below its

printed

first

pressing

white. For

in

hasthe word "LIGHT"

lights

the "2nd

which has the second

example,

key's

then the AUTO

key,

on.

keys

lettering

printed

second

DISC Discrimination

noise

rejection system.

key

display.

are 0

keys

one function.

to use the other functions.

a numeric

adjustment

0-9 These

bersothroughg. Someofthesekeyshave
more than

function

Pressing

numberin awindow

the

AUTO The AUTO

is an

through

allow the

key displays

nearthetop

switches

key

adjustable

The levels of

10.

entry

Use

In or out of the automatic mode.

the

automatically adjusts

selection at

range

AUTOkeyallowsyou
X-40, making
desired.

matic

mode,

immediately

have

Note: The X-40 has

pri-

manual

When the X-40 is in the auto-

the word "AUTO"

below the

features than the ones

sensitivity

on.

power

Pressing

to take control of

adjustments

sensitivity

many

just

cussed. For a detailed look at

key."

the X-40's features and
tion instructions,

the

read the

eration section of this manual.

of num-

the 2nd

the

centerof

the X-40

The X-40

and

the
the

as

displays

bar.

more

dis-

opera-

Op-

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32

5

DISPLAY

we'll turn on the X-40

First,

the

ON

seconds. The chart scrolls the

echoes across the screen

digital

It's flashes 0 untIl it finds the
Once it finds the

displayed.

INTERPRETATION

Now let's look at the

The

key.

searches for the bottom

lights

bottom, the

display.

by pressing

will

flash for six

and the

bottom.

depth

return

depth.

is

ii

TiTjIii

The

temperature

to bottom.

Layers

warm and cool

layer

of water in the lake is seldom constant from

of different

temperatures

of water is a

thethermoclinecanvarywiththe

be two or more at different

may

fishermen because

fish will
just

be above the thermocline

below it.

are areas where

they

The X-40 can detect this

sensitivity

will

probably

have to be turned

form,

thermocline. The
season ortime of

depths.

Thermoclines are

fish are active.

while

larger

game

invisible

up

layer

to

see

and the

depth

In

day.

fish will

in the

it.

top

lunction

of a

and thickness of

lakesthere

deep

important

Many

suspend

water,

times bait

to

in or

but the

Here the X-40 has

bottom at

80

lower limit

nal near

48 feet. The
It

feet.

automatically

that

the bottom of the

placesthe

The bar at the

is

the

play

sensitivity

from left

indicates minimum

the

bar to run

sensitivity

in

to

sensitivity

completely

use. The bar

right.

to maximum

The word STOP indicates
Thetopline

to

left,

showing

decreases,

the dashed

chart causes the

The

range

bottom of the

Scale

markersprinted

depth.

display,

For best

in

explains
features not

detail all of the functions that are in

discussed here.

found the

is zero

sig-

the

extends

the

top

to

a

range

chooses

bottom

display.

of the dis-

top

bar. It shows

A

sensitivity. Setting

very

causes the

across

short bar

the X-40's chart is

ofthe

chart

the chart is

line

isalways

moving.

changes speed

line to flash on and off.

is both an

respectively.

on both sidesof

results,

read the

limit and a lower limit

upper

In this

thedisplay

Operation

-L

__________________

of the

display.

adashed line. It

As the chart

accordingly. Stopping

example,

helpdeterminetheactual

section of this manual. It

the

this

stopped.

movesfrom

speed

increases or

at the

isO -80 feet.

range

section,

top

pIus

right

the

and

other

which

A

knowledge

they usually

of the water

remain,

SURVEYING A LAKE

The most

fish it
that

and at what

And

after

day

produce

realize that

they

depending

With the

successful

and

day

fish

year

consistently. They

depth, they

these

on water

level,

X-40, anyone

can

on the areas where fish are

The most efficient

is to

survey

indicate the

of bottom. It will also

type
dial

usually

for them. You

overboard.

The

string

marker's flat

marked, you

spot.
mark the

again.

it with

promising

As

you go

indicate a

may

a few

Keep

When the X-40 indicates a school of

will

unwind until the sinker hits bottom.

shape,

can make

This is

essential when

X-40. Start with a

your

spots

about

good

not

get

Lowrance Fish-N-Floats in the

it won't unwind

your

school of fish when

temperatures

helps you get

anglers

afteryear. Eventually, they

on

any body

discover

to find the fish

expect

productive

temperature,

can

likely

wayto

in relation to landmarks on

areas

food,

eliminate

to be. Even if ft's the first time on the lake!

become

your survey, your

reveal

suspended

school of fish and it's worth it to

further.

any

any

turn and come

you'refarfrom

over

you're

various fish

the most from

of water are

through experience where,

they

change throughout

and other factors.

guesswork

acquainted

of the

map

X-40 will tell

fish.

further. With

back to fish in

shore on

it, you

lake,

Multiple

boat,

throw the

fish,

Then,

a

big

not be able to find it

may

prefer,

X-40.

your

those who

learn

the hot

want at

any

season.

the

and

concentrate

with

a

if

shore.

you

of water

body

possible,

the

depth

signals

and fish

stop

ready

buoy

because of the

the school thus

exactlythe right

lake. Unless

and in

spots

year

and

and

on the

to toss

out.

you

6

31

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

Mostfish

don'tspawn

unlessthewatertemperature

narrow limits. To find the different

meter,
provides

water

streams that

stocked in lakes that

have a wider

within which it tries to

at the level that

such as the LDT-3000 is a valuable

an

extremely quick response

spawning temperatures

too warm. Bass and other fish

get

remain too cold

temperature

for various

tolerance than

stay. Schooling

provides

this

temperature.

comfortable here.

temperatures,

aid to

to

identifying

species.

the summer.

during

others,

fish

each has a

suspended

We assume

iswithin rather

a surface

your

temperature

boat. This unit

the desired surface

Trout can't survive In

eventually

die out when

While some fish

certain

over

they

water lie

deep

are the most

range

OPERATION

When the

the bottom
the scales to a
much more.

concentrate on

manuailyadjustableso

Take this manual with

ON

The ON

found

easily
ON

flashing,

seconds

display

depth.

An audible

key.

then

as the chart scrolls across the

will

X-41) is first turned

and

depth,

Using

range

fishing.

adjusts

that

the

itcan be

you

is located in the lower

key

in this location

beep

aftersixseconds. The Lowrance

stop

flash "0"

until it finds the bottom. Then it

It

on,

automatically

the

sensitivity

will

X-40 in this mode is

However, virtually every

keep

the bottom

tothe

signal
simple

"finetuned"tothesurrounding

reference

as a

guide.

roN j

corner

-

even at

reflects the

right

To turn the X-40

night.

key press.

display.

The chart

The

and

finds

proper

on

and allows

level.

the

displays

It

also

display,

you

function of the unit

conditions.

of the

keyboard.

on, press

will

lights

will flashforafew

logo

digital

displays

bottom

the

depth

digital

sets

plus

to

is

It's

the

begin

OFF

[oFF]

To turn

2nd

The X-40 has

Therefore,

keys.

primary

function is in one

access the second function on a

the

appropriate key.

"LIGHT."

automatic

the X-40's

from AUTO to LIGHT.

key

CLEAR

lfyou

wait six seconds. The X-40

For

are

press

instead of the 2nd

key

to start over.

you

the X-40

some of the

Pressing

mode.

on. The 2nd

lights

makea

However,

off,

press

different functions,

many

keys

color,

For

example,

the AUTO

pressing

key just reassigned

mistake,

and

will

if

example,

2nd,AUTO. However,

The CLEAR

wish to

you

key. Pressing

key

the OFF

I2ND1

t J

have more thanone function. Each

while it's second

key, press

key by

the 2nd

[CLEAR]

key.

but

"2nd"

the

the AUTO

itself takes

key,

a limited

only

space

function is white. To

keyfirst,

also has the label

key

then

the X-40 out of the

then the AUTO

the

meaning

key,

of the AUTO

key's

press

turns

pressakeyotherthanwhatyouwanted,

automatically

turn on the

suppose you

the CLEAR

also erases or turns

erase the

lights,

accidentally pressed

key

entry.

the

erases

proper keys

the

0, allowing

off other functions

the 0

for

to

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

30

7

of the X-40

including

8CC, Discrimination,

functions are described in

explained

in detail.

this

manual,

and

Upper

the CLEAR

Limit. When other

key's operation

will

be

If a

curves

not

pointing straight

but not back

up,

partial

arch

down.

fish show the distinctive

achieve the correct

mounting.

occurs most of the time on

or

down,

vice-versa)

Adjust

arch. This

a

transom mounted transducer until the

maytake

it

could be the transducer is

some trial and error until

your

unit

(the

mark

you

AUTO

Turning

manual

AUTO

sensitivity
Return

mode,

key

the X-40 to automatic at

the X-40 on

pressthe

erasestheword

and

ranging, giving you

AUTO

I

—

____

enables the automatic mode. To switch to the

located above the ON

key

AUTO atthe

complete

time

any

—1 I1 ii kq

IGRAYLINEI

SET

SENSITIVITY

When first turned

micro-computer automatically adjusts

lock onto

or

level.
Increasing

length

barto extend

available.)

turns auto

disappear,
sensitivity, press

desired

Notice how
pressthe

in

sensitivity. Pressing

the
the

On
higher

the bottom. You can leave the

manually

A

horizontal bar at the

When the

the

correspondingly. Selling

To

place

sensitivity
signifying

level. The left arrow decreases

the

rightarrow key,

sensitivity
display.

The

photo

the

right,

surface clutter are now

it to suit conditions.

adjust

sensitivity

sensitivity

across the

the X-40 in manual

off. The word AUTO at the

that the X-40 is in

and hold the

sensitivity

has

decreased

on the next

the

graph

the X-40

on,

top

is at its

causes the bar to travel

the

of the

top

bar

the bar

the left

has a

display. (There

mode, pressthe

arrow

right

moves as

moves tothe

arrow

key

accordingly.

shows a

page

proper sensitivity setting.

visible,

8

key. Pressing

the

topof

manual control of the unit.

by pressing

display.

This cancels auto

the AUTO

key again.

i.e_i

in

is

the AUTO SEARCH mode. The

the

sensitivity

sensitivity

of the

screen

minimum

sensitivity

the manual mode. To Increase the

key

sensitivity

you change settings.
moves the bar to the

You'll also seethe

graph

and the bottom

and

in

the automatic mode

displays

the bar is

level,

to the

right, increasing

range

the

to find and

sensitMty

short.

very

to maximum will cause the

are 32

AUTO

top

until the

in the same manner.

right, indicating

with too little

signal

of

steps

of the

sensitivity

sensitivity

once. This

key

display

When

an

left,

change

sensitivity.

A fish

along

has widened.

is at the

increase
showing

the

in

will

you

on

with

Remember,

thefishto
with

developthe

the main

Thedepth

duetothe

in shallow
is

due to the narrow cone diameter and the

display.

The

a

paper

well asa

the screen

coneanglediameter. Forexample,

water,

Compared

reason for this is the

graph's markings.

graph.

than a

Very

show a

Largefishwill arch,
Because of

etc.,

arches.

partial arch,

water

the

sensitivity

One of the best

segmentofthewater.
the better

as
deep

WATER

the screen resolution will be.

possible

without

water, this method should work to

TEMPERATURE AND

Water

the

upon

aiwaysthe temperature

activities of all fish. Fish are cold blooded and their

water slows down
as much

food as

there must be

engine

arch.

in

gear

Usually,

some movement between the boat and

this

at a minimum

meanstrolling atveryslowspeeds

throttle

of thewaterwill affectthe size and

if

thecone

the

signal displayed

to a

it

Plus,

paper

small fish

or a

paper graph,

pixels (dots

Therefore,

requiresa

graph.

probablywill

shape

on the X-40

may

resolution limitations of the

a X-40 cannot show as fine of detail.

on the

screen)

the X-.40 cannot

bit

morework

not arch at all. Medium

similar to an arch if

initiallyto

butturnthesensitivity upin deeperwaterto

conditions,

sometimes cannot be increased

For

getting

such as

to

ways

example,

fish arches is to

get

40 to

too much noise on

surface

heavy

60 feet. The smaller the

turn

Then,

up

the screen. In medium to

display

fish arches.

THERMOCLINES

temperature

has an

of the

surroundingwater. During thewinter,

their metabolism. At this

consume in the summer.

they

important-If

29

time,

not

they

selling.

of the fish arch

shape

passes

overafish

not arch at all. This

are much

larger

than

show fish arches as

read and

they're

clutter, thermoclines,

enough

expand

the

sensitivity

controlling-influence

interpret

sized fish will

in

water.

deep

seethearch.

to

get

or "zoom" a

segment,

as

high

fish

bodies are

colder

need

about a fourth

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

Brush

usually

abovethe bottom
their

signal

is not as

FISH SIGNALS

The

signals displayed

shaped markings

noise. Or the

by

solid,

lies on

signal.

strong

in

certain

the bottom and shows

Brush

signals

as rock.

on the X-40

patterns,

continuous

look similarto

as

markings

fish are

by

opposed

made

as

up

large

identified

to random

the bottom.

by

clumps rising

however

rocks,

various

by

marks created

11/Vs

AUTO

Typically,

them from their

below. The distance

fish are

stationary surroundings.

identified

by

to a fish when it moves into the sonar's

isshownas "A" below. Whenthefishhas
the distance to it

will

distance will Increase

be

shorter,

again

"B". As it moves out of

shown In "C".

as

a characteristic arch

The reason

moved intothe

for this is shown

centerofthecone,

that

separates

cone of sound

the

cone,

the

8C

SENSITIVITY:

When the horizontal bar reaches the far

screen,

the

a second bottom

caused

it makes

pressing

functions on and off at

by

a second

To turn Auto

the

TOO LOW

sensitivity

echo

the

returning signal reflecting

trip

SensitMty

AUTO

key

SENSITIVITY:

level is at maximum.

(second echo) may appear.

to the bottom and back

back

on,

turns both automatic

With

the surface of the water. Then

off

again.

the AUTO

press

sensitivity

the same time.

PROPER

hand side of the

right

sensitMty settings,

high

This is normal. It's

Remember,

key.

auto

and

ranging

AUTO SENSITIVITY ADVANCED

When the X-40 is in the automatic

the

This

the

surrounding

minimum

sensitivity

may

level while the X-40 is

be desirable if the

automatically adjuststo

itatalevel

places
signal.

Changing

rnodeis

possible.

to show fish

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

28

slightlyabovethe

or other small detail. The X-40 will increase

OPERATION

mode,

conditions. The

requiredto pickupthe

sensitivitylevel

9

the receiver's

micro-computer

in the automatic

is not

the

sensitivity

sensitivity

bottom

enough

to

pick upthe
you

simply press

decrease the
move

bottom

can add

To

adjust

or

right

signal,

sensitivity up

the

the

right

sensitivity.

left, according

CHART SPEED

At

power on,

For a

higher speed, press

the

keyboard.

the FAST

either of these
change

display.

FAST

key

that the chart

Holding

slowed down. When
screen,

indicating

2nd,

an echo before it
once will

display.

chart

displayed.

the chart

SLOW.

speedsetting. lfthedigital

When the scroll

To

key.

slowthedisplay, press

keys

to a dashed line.

This

bar

for

either the FAST or

maximum chart

To view

At

times

freeze the

Press

Thedigital

represents

example,

speed

speed

the chart

it

is desirable to

scrolls off the screen.

display.

STOP/RESUME againtostartthe

then add

to the

sensitivity

arrow

As

51.0W FAST

the chart

and hold

causes the

The letters "CHT" will

the bar will start

is

increasing.

SLOW

the horizontal bar reaches the far

is

at its maximum value. The X-40 will sound a tone

speed.

speed

in

the level

maximum.

you programmed.

while the X-40 is in the automatic

to

increase it. Press the left arrow

key

press

the

sensitivity

RESUME

speed

the arrow

scrolls at a

you

to

the FAST

reaches the desired

speed

and hold the

sensitivity

the chart

keys,

without

stop

bar at the

speed.

moving

There are 10

the

display

changing

or "freeze" the

Pressing

The word "STOP"

the

key,

level chosen.

pre-determined speed.

in the CHART

key

SLOWkey. Pressing

top

appear

If
to the

appears

near the

you press

right.

steps
can be

it,

press 2nd,

display

the

STOP/RESUME key

near the

sensitivity

speed,

of

the

and

This

of

chart

speeded up

right

to examine

displaymoving

does not

sonar

stopwhenthe

ison,

the bottom

depthis continually

chart isinthe "freeze" mode.

If

desired,

mode,

to

key

barwill

section of

release

display

top

to

of the

hold the

signifys

speed.

or

side of the

FAST or

of the

top

atthe last

The 20

the 8

water,

-

feet

fresh

desirable. Since the sound
penetrate

Both 8

readings,
model.

the

signal

This is because

shallow

tells

degree

degree mostly
water,

to much

degree

even

though

edge

whether

you

Paint transducers on

to

paint
other marine

Do not use a metal based

transducer's

designedfortransducers. They're

prevent organisms

growth

sensitivity.

transducer is

in salt

100

deeper depths.

-

feet

energy

and 20

salt

the bottom

are

you

of the

signal

are over

you

saltwater boatswith a thin coat of anti-foulant

from

will cause a

anti-foulant

There are

water.

water)

degree

seeing

shows

growing.

decrease

readilyavailableat

SIGNAL INTERPRETATION

Since

an accurate
firm

sand,

gravel, shell,

automatic

you

returns a weak
sensitivityturned on,

mud

a

good

sensitivity

have moved over

bottom,

bottom

bottom is soft or

the boat has

bottom.

sensitivity

the bottom

height.

extending

moved over a soft bottom. If it

Of

will

rooks or

Big

level

As

you pass

above the bottom

X-40 is both

your

picture

of the

or

is off and the

extremely

bottom that

hard

clay

signal

a mud bottom. Mud absorbs the sound

signal.

Turn

watch the

the

X-40 will

signal.

course,

also

The

hard. If it increases while in

as the water

change.

stumps

signal.

over a

the

up

sensitivity

automatically

sensitivity

on a smooth bottom

The

height
post,
signal.

almost

In

a

always

deep

the best to use in fresh

water

environment,

the narrow cone

Is

concentrated In a smaller

transducers

is

signal

more of the

the true

you

rocks, mud,

paint

special

sensitive and

your

returns a

narrows

sensitivity.

bar. As

increase the

bar will

decreases,

depth

of the

it will

signal depends

be

much wider on the 20

If

unchecked,

in

the transducer's

as it will decrease the

anti-foulant

boat is

fairly

down,

If

the boat

help you

the same

increases or

send back

clearly

accurate bottom

give

bottom.

depth.

etc.

paints specifically

most marinedealers.

powerful,

passing.

wide

then it

have

you

sensitivityto

in

determining

depth

then 'it is over a hard

decreases,

visible as a short line

(300

is more

angle

it can

area,

degree

Remember,

The rest of the

barnacles and

sensitivity.

it

gives

A bottom of

signal.

If the

means that

wave and

the automatic

passes

overthe

maintain

if the

of

signals

on the

water,

above

target's

then

the

10

returned

A

steep slope

from a

returns a

underwater cliff are

high

wide

signal,

usually

27

the

steeper

the widest of all.

the wider.

Signals

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TRANSDUCERS AND CONE ANGLES

The sound waves from the transducer

a cone

shaped

between the outside

angle

Lowrance offers a choice of transducers

degree
products.

Lowrance transducer of the same
However,

of

operating

allows

degree

covers

cone

angle.

In other

the use of

performance.

Typically,

in shallow to medium water

to see more of the underwater world. In 15

you

cone covers an area about sixfeetacross.

about a two foot circle.

only

50 Ttt.

lOG 14- 35-
ISO 21- 53-

200 U- 71-

This looks much like the beam from

beam.

edges

These will

words,

anyother

wide cone

Con.

MgI.

DIITIS

interchange

use

any

manufacturers'

angle

r a'

IBt

the cone is the cone

of

Lowrance sonar

frequency

transducers

depths.

spread

with

with no

transducerwill result in a loss

The

out into the

aflashlight.

angle.

with either an 8 or 20

of the 192 kHz sonar

any

Instrument with

loss of

degrees)

(20

20

degree

feet of water the 20

The 8

degreetransducer

water in

performance.

are ideal for

cone

50'

100'

150'

The

any

angle

--a

pt•

SCALE

line,

in

etc.

scale markers

the

display.

the

depth

the

If

range

mark Is

as

then it is 30

=

30

multiples

There are ten

printed

This

a
0 to

on both sides of

to determine

helps

60

For

feet,

target.

example,

then each

to six feet. If a

next tothe 5th

Is

(5linestimes6feet

deep.

To make

scale,
Le.

it easier to use the

use

ranges

10,20,30,

target (such

RANGE

When the X-40 is

the

matic,

the bottom

the bottom

however,
expand

target.

0 to 9989 feet and the lower

ranges change

signal

depth

it

may

the

range

The

upper

on the

varies. At

be desirable to

or zoom In on a

limit

from lOto999Qfeet.

tion of the two limits Is
ceptthe

than ten feet to

Entering a segment

feet causes the

alert. The

the

lower limit cannot

the

X-40 to sound an

will then

range

previous setting.

in auto-

to

display

adjusts

combina-

Any

allowed ex-

be closer

upper

than ten

less

remain at

of

is

equal

a

fish)

feet

feet.)

depth

often,

keep

as

times,

from

limit

limit.

NOTE: The

of

200'

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bility
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See the

bottom

LOWER LIMIT

11

maximum

the X-40

conditions

specifications

depth capability.

depth capa-

depends

on water

the

plus

installation.

for

typical

LOWER

LIMIT

LOWER LIMIT

To

make certain the

thetop

change

ofthescreen.

the automatic
also

disables the automatic

function.)

press
Next,
10 to 9999 feet and

LIMIT
change

If the

the AUTO

pressthe

The

key.

to the

displaythenewlowerlimitatthebottom

the lower

limit,

first

word "AUTO" Is off at

Thisindicatesthat

mode is off.

automatic mode

once to disable It.

key

This

(Note:

sensitivity

is

on,

lower limitdesired from

the LOWER

press

displaywill immediately

new

depth range

and

of the screen.

For

example,

from 0

LIMIT.

NOTE: The maximum
However,

bottom

to

80

feet,

the actual

conditions,

When the

lowerlimit selected will

limit will be a number

hundred,

UPPER

to

show more detail. You can do

feature.

is off. Then

9989

upperlimit

words,

etc.

LIMIT

Often ft's

-

To

change

simply press

feet). Next, press

isthat it

setting

the

closer than 71 feet. It

cannot

you

segments anywhere

scale

change

Set

upper

expansion

to set the

press

range

8,O,LOWER

lower limit the X40 can

that it can reach Is

depth

the

plus

X-40

quality

changes ranges

always

of the transducer

bea

multiple

that ends in zero such as

UPPER

I

LIMIT

desirable to

expand

or "ZOOM" a section of the

this on the X-40

the

display's upper

the desired

depth (any

the UPPER UMIT

mustnot be closertothe lowerllmttthan I

lower limit to 81 feet

requires

the

upper

and

between the surface and the

or "zoom" of a

a ten foot or

limit if the X-40 Is in

lower limits in various

portion

12

display

dependent

while in the

often. In

automatic

otherwordsthe lower

ten,

by using

first make certain that

limit,

number

The

key.

prevents

the

only
upper

is

on water and

installation.

twenty, forty,

the

between 0 and

restriction on the

Ofeet. In other

limit

larger segment. Remember,

automatic.

combinations to show

bottom. This

of the

display.

9999 feet.

mode,

one

display

Limit

Upper

AUTO

from

being

permits

the

a

MENU

MENU

#5- PULSE WIDTH

#6-SCC-page2O

MENU #7 - ZOOM SIZE

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page

MENU

For

example

were

included in the Command

pressing

then

the 2nd

COMMAND

been

explained previously, please

above for Instructions.

13

#8-

FEET/FATHOMS/METERS

These

functions are

2nd,

press

the COMMAND

then the COMMAND

key,

for the Pulse

MENU

#4- DIGITAL AVERAG-

ING

The

40 is a

highly

rapid updates
Under most

contour

changes

play appears

the

display

can be
bottom

tion,

ings

will

difficult to determine the actual

depth.

the X.40

and

displaysthe

40 is first turned
abled.

2nd,COMMAND

or

press

the

up

ALARM section of the

To disable

4,2nd, COMMAND.

or

down arrow in the ZONE

off oron. Wait six
to clear or

ume

-

page

press

operation.

22

(AUTOMATIC

printed

0 for the

key.

Width menu. Since these functions have

in white on

width

pulse

section since

You can

also

key.

refer to the

25

press

For

sonar used in the X-

digital

sensitive device that

of the water's

conditions,

so

to

"Jitter".

change

To

minmize this condi-

averages

on,

until

seconds forthe

the CLEAR

BO1TOM

-

page

on the

keys

menu.

they

the menu

example, press

page

the bottom

that the dis-

quIck

In

other

so

quickly

the bottom read-

result. WhentheX-

averaging

it,

4

menu

keyboard

appears,

Next,

key

TRACK-

21.

keyboard.

However,

are available

number,

5, 2nd,

numbers listed

words,

to turn it

display

they

gives

depth.

that it

is en-

press

press

to res-

by

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UPPER

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When

limits,

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changing

remember the minimum

the

upper

upper

I2ND1

The lower limit

depth changes.

Tracking

and

tracking

in on the bottom and track It as its

changes,

To use this

will

keep

the bottom

it

Now

press

place

40 foot window. The bottom will

be inside this window. If the

size is 40 feet or

limits will end in zero

Otherwise the limits are in one foot

121

t J

PULSE

There isa

resolution and transmitter
Resolution,

to

sonar

the
ability

deep

the less

ceived.
increases
increases.

pulse

probability
even better

gives you
pulse length

bine
twenty

X-40

other

press

ZONE ALARM

short

or
your

separate

length,

pulse

to

separate targets.

water,

likely

In

the

length

of echo detection

the

the narrow

foot

displays

liquid crystal

To

2nd,
pulse

waft several seconds

selection.

relationship

in

this

case,

targets.

is the

the better

the shorter

a

fact,

pulse

In shallow

is beneficial,

target separation,

capability

further

pulse

segment

small

change

0. Use

section to

or normal

the

return echo will be

X-40

the

length

water,

than normal.

length

or "zoom" and

detail far better

graphs.

to a narrow

the arrow

pulse.

COMMAND

As

you

"menus" of

Thereare8

can

TheX-40 has

theunittoyourneeds.

accessed with the COMMAND

are

menu

appears.

Volume.

numberone.

The number "1" atthe

Pressthe COMMAND

between

length.

pulse

The shorter

the sonar's

However,

pulse length,

automatically

as the

ability

range

of a

a narrow

since the

is

high.

the X-40

to narrow

Com-

withaten

than

pulse,

in the

keys

change

for the

to the

Pres the CLEAR

display

r1

I

il

command

pagesofn

key.

see on the next

bottom of

0

PULSE

C

—

in

—

re-

—

For

—

the

or

-'

the

to cI

Pres

th

keyagaii

MENU

#2

-

GRAYLINE

CHECKS OR LINES

This menu

from a checkered

change, press
MAND

2nd,

down arrow

of the

press
and return to the chart

several seconds and the
automatically

until menu

COMMAND.

keyboardforchecksorlines.

CLEAR to activate the selection

MENU #3

Turn the

display

2nd,

pears, orpress3, 2nd,

the arrow

section to

Press CLEAR to activate

or wait several seconds and it will auto-

matically

off or on

COMMAND until this menu

keys

switch

activate.

changesthe Grayline

pattern

2nd, COMMAND,

2

appears,

Next,

in

the ZONE

clear.

-

SCALES

with

in the ZONE

the

press

ALARM

display.

and lower limit

upper

this menu.

COMMAND.

numbers

your

to lines. To

COM-

or

press 2,

the

or

up

section

Then

waft

Or

display

will

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Use

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off or on.

selection

,._zSFNSIi!VtiY

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FOR NO
CHANGE

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Example:

D

—

-

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LIMIT.

lower
distance between the

example,

lower limit of 20 feet.

limittol

-

an alert. The

change.

AUTOMATIC

-

Y

TRACKING

bottom

Bottom

tivity
zoom

depth

a zoom window.

40 foot zoom window.

the X-40

above the lower

placing
the X-40 tracks

deeper.

The X-40 will choose an
limit that will

the
always

segment
window

etc.).
Increments.

CLEAR

To

change

ALARM section

menu selections,

of the

keyboard.

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use

Once

22

yot

S

TRK,

24

If

you simply press

the X-40

displays

rom 40 to 80 feet.

rangef

LIMIT, 8, 0,

the

LOWER

upper

two is ten feet. For

limit is 10

Changing

lowerllmitswon't

and

BTMTRK

J

feet,

the lower

8

with a

BOTTOM

will

change

When Automatic

is

activated,auto

are also turned on. To

the

follow

feature,

For

the

limit.

signal

it moves shallower or

as

steps

example,

This means that

upper

Automatically

in this

4, 0, 2nd,

upper

the bottom

as the

sensi-

below.

first choose

lets use a

limit 40 feet

window,

BTM TRK.

and lower

signal

greater,

(10,20,30,

2nd,

a screen describ-

or

in

the

BTM

13

TO CHANCE

H

PRESS

ALARM

.

—

t OF

ZOO,r,1 SIZE

.

TO CHANCE

ZOOM

ENTER SIZE
THEN F'RES

2ND AND :3

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FOR NO
CHANCE

PRESS

CLEAR

L-

tjF.

SIZE

—

how to activate the Automatic Bottom

Ing

Bottom

ZONE ALARM

example,
press

to

Tracking

if

the

up

30 feet. If the down arrow was

to 10 feet. If

window

in 4

BTM TAK. Or

size

meter

To exit from this

Is

on,

section to increment or decreni

the window size is

arrow in

the ZONE ALARM

the X-40's

In 2

fathom

with each

steps

the AUTO

press

press

range
steps.

press

function,

the

up

currently

is in

If ft's in meters

key

S

GRAYLINE

The GRAYLINE functions tells the r

displayed

bottom. In other
bottom

weedy

on the

returns a

bottom returns a weaker

GRAYLINE: OFF

EJWVfTY

I—

screen. It also

words,

strong signal causing

can tell if the boti

you

signal

-ml

Tra

or down

20

feet,

section

pressed,

the ',I

fathoms,

of the arrow

2nd

0,

press

to turn off

1GIIAYLIN9

clues

gives

a wide

which

C

ar

ti

Ø

i

I DIGITAL

I

ISHALLOWI

iO ALARM

10th

The

the bottom

plays

bert

Displaythe

of

a foot in water

pressing

goes
sonarwill

numbers
freeze
continue to show the

changes.
chart

shallowwaterwarningsfromfish

off.

2nd,

deeper

automatically display

again.

mode, the

It does not

does.

Thus, you

Press

sonar

digital

depth

bottom

less than 100 feet

10th. If

than

99.9

If

the chart is in the

digital display

bottom

10th

2nd,

DIGITAL BO1TOM

DEEP

ALAflI

I

normally

in

whole nurn-

in tenths

depth

the bottom

the

feet,

in

depth

freeze when the

can

distinguish

alarms.

to turn

ALARMS

The

alarm. The
screen. The

inside the

the zone
a

high pitched

the alarm's

echo is

boundaries of the

The

alarm,

upper

detected at or

X-40 has two

zone alarm consists of

alarm sounds an

alarm has

depth

this

tone when the

limit. It

different

zone bar.

userselectable

alarm

deeper

sounds on the bottom

only

bottom echo is detected

sounds with a low

than the

alert whenever the

dis-

by

depth

digital

whole

will

as it

tenths

DEPTH'

alarms,

a bar that

a zone

displays

upperand

pitched

alarm's lower limit.

SENSTI7ITY

—

alarm and a

on the left side of

X-40 detects an echo

signal.

digital

lowerlimits. Unlike

It alarms with

at or shallower

tone when the

bottom

depth

the

than

pressing a key

To view the
To turn

8CC

and it will

8CC level without

off,

press 0, 2nd,

automatically

I2ND]

t FT/FA/Il

changing

8CC or

FEET-FATHOMS-METERS

The X-40

eitherfeet,

display

fathoms or

A

highlighted.

zone alarm section

fathoms. Press the CLEAR

the selection or wait
the

feet when ft's

reads in feet.

menu

appears

menutodisappear.

can

display

fathoms,

meters, press 2nd,

or meters. At

To

with the current

Use

the arrow

to switch to meters or

key

several seconds for

TheX-40

turned off.

the

change

FT/FA/M.

keys

to

revertsto

CLEAR,

in

depth

the

first,

it to

mode

in the

activate

erase.

it,

simply press 2nd,

8CC.

2nd,

9

I

TO

—

-

-. CHANCE

PRESS

E4LARN

1•

FOR

F' F: E S S

C!.EAR

8CC.

CHTh.;E

OR 1..

NO

I

1T:

14

NOTE

on

is

once.
again.

off.

KEY

The note

enables the

also. To turn the

on,

The note
This does not

turns the

key

audible tone. The

audible tone

display

change any

audible tone off and on.

will turn off. To

t_!!!tl

note

display

off,

press

turn it back

alarm

settings,

16

at the bottom

the note

on,

it

merely

key

press

Turning

the alarm

of the screen

on the

keyboard

the note

turns the sound

0

key

21

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Discrimination

should be an

DISC

key.

desired, (0 through 10).

immediate

Turn

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Discrimination off

change

[2'1 I

SURFACE

of the

top

feet below the surface.

many
interf ere with fish

These

are caused

bait

fish,

other reasons.

(SCC)
clutter. SOC varies the

ceiver between each transmit

while the

return echoes. The

echoes near

increases as the
maximum
one-half of the selected

example,

60 foot
from the surface to 30 feet.

sets SCC to level 1. To

caily
numberfrom 0 to

SCC menu

in the

keys
levei. Pressthe

CLARITY CONTROL

The

markings

display

markings

by

temperature

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can at

signals

are Surface Clutter

wave

to reduce or eliminate surface

receiver is

gain

the surface. It

depth
that SOC will affect is

depth

with maximum

would have an effect

SCC

range,

SCC has ten leveis of

10,

appears

keyboard's

CLEAR

noise—at the

--or

times extend

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orothertargets.

action,

with the level of SCC

boat

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Clarity

of the

gain

"listening"

is the lowest for

gradually

increases. The

depth range.

on a 0 to

SCC,

adjustment.

change

then

press

zone alarm section to increase or decrease

erasethe menu orwait severai

keyto

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in the noise

by pressing

setting

without

L

and

wakes,

and

Control

re-

pulse,

for the

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SOC or

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currently

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press

displayed

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changing it, press

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key.

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F

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simply

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in

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use.

seconds after

simply press

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the

—

enter a

the SOC

1e'L1.W

SHALWW

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To set the Zone

SHALLOW

section
display

screen.

SET

key

of the

keyboard.

in the iower ieft corner of the

A vertical bar also

the left side of the screenfor

This is the Zone Alarm's "window."

echo that

screen between the

this barwill soundtheaiarm.
the shallow and

make a smaller or

dow."

alarm,
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vertical

side of the screen. This is the zone

alarm's
this barwill sound

keyto

the

end of the zone

the zone

as

Just

b the bar to the

DISPLAY. To turn it
zone alarm

and

changed

appears

deep

To

adjust

the SHALLOW

press

display

bar also
"window".

movethetop

the bar

of

top

alarm barwill

can see

you

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press

If

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the words ZONE ALM will

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by

bottom of the zone alarm bar is

DEEP SET

the

desired

wish to view the zone

you

settings.

range

since

also,

Alarm,

in the ZONE

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the

on

right

and

top

ends of

larger

the shallow

on the screen.

displays

thealarm. To

deeper.

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on the far left

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of the

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disappear.

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press

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they

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t I

T

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the

press

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displays

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six seconds.

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side of the

bottom of

both

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alarm

(top)

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key.

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longer you

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then the arrow

first,

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appear

the zone

__________________

________________

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orthe

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the

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key

portion

keys

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off,

just

an

echo,

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settings may

ALII

;•

and bottom of

top

press

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and in six seconds

of the screen.

in the same manner.

the bottom of

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20

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TotumtheZoneAlarm

SET. All of the Zone Alarm

turned off.

back on with the

DEPTH

awarningwhenyou're

alarm

bottom

alarm.
NOTE: In orderto

Pressing eithershallowordeep

previous settings.

ALARM.

The

gives

signal

a

alarm is

depth

warning

is

the

usethe

inwatershallowerthanthealarm

in water at or

only

depth

be on.

both

Selling

a "window" to

boat

alarmwill

the

convenient when

Into water

goes

sound. Adifferenttonewill sound if thebottom

alarm

deep

the shallow and

be

positioned

that is shallower than the shallow

setting.

navigating through

To use the shallow

then

pad,

alarm

pressthe

to 15

feet,

the screen as it's
lower

portion

into water fifteen
"SHAL ALM" will

SHALLOWALARM

1

press

of

the screen to indicate it is activated. Now if the

,5,SHALLOW

entered,

feet

deep

flash on the

off, pressCLEAR,SHALLOWSET

DIGITAL

ISHAU.OW DIEP

will remain in

set

ALARM ALARM

memory

keyswill

two alarms. The

than

deeper

trigger

alarms,

between the surface and

eitherthe

deep

a

channel.

enter the

key.

ALARM.

disappears.

the alarm will sound

less,

display.

the alarm set

either the shallow or

digital

alarms at the same time allows

anchor watch. It is also

desired

Forexample,

The number 15

The

letters "DA"

settings

I

actually

echo that will

This makes a useful

alarm,

then

or

orDEEP

until the X-40 is

turntheZoneAlarrn

shallow alarm

set

point. Thedeep

point.

gives

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deep

orautomatic must

the bottom. If the

alarm's

depth

selling,

goesdeeperthan

on the

the

10-key

to setthe shallow

displays

appear

boat moves

and the words

on

in the

LIGHT

A

Is allows

uniton

and the
again.

DISCRIMINATION

Noise is

acoustic

produce

signals.

which ones are noise

echoes.

highestlevel.

1. If too much noise

light

causesthe

lights

The

Unwanted noise on the

any

source,

unwanted marks on the

The

It

lightstoflashforsixseconds. Pressthe2nd,

will

lights

undesired

on. To turn the

stay

will also

ora combination of the two. In both

X-40 has Discrimination which is effective In

processes

all

and eliminates

Discrimination has ten levels -0

TurningtheX-4oonautomaticallysets

DIscRIMINATIoN:

Nsfl-fv1Ty-—-—--—-.

OFF

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out when the X-40 is turned off.

go

FAUTÔ1

J

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of the X-40

off,

lights

at

pressthe

Lm]

is a

fairly

caused

echoes from the

them,

displaying only

through

on the

display, press

DIscRIMINATIoN: PROPER SEllING

¼_.

signal.

incoming

is

present

display

It can be

display.

J

At

night.

by

first,

turning

UGHT

LIGHT

2nd,

common

complaint.

either an electrical or

the noise can

cases,

combating

receiver,

10. 0 is

Discriminationtolevel

determines

the

legitimate

10 is

off,

the level

the

keys
keys

noise

the

of

The

depth,then pressthe

to

50

feet,

press

or

deep

on the

deeper,

display.

To view

SHALLOW ALARM or DEEP ALARM

To turn

ALARM. The CLEAR

shallow and
the

display.

alarm is used in the

deep

DEEPALARM

DEEP ALARM. If the boat

5, 0,

the alarm will

the

settings

each alarm

can

key

alarms

deep

same manner. Enter the desired

key.

Forexample,

tosetthe

moves into water 50 feet

sound. The words "DEEP ALM" also flash

of the shallow or

off,

press

be used

areturned

off,

keys.

SHALLOW ALARM or

0,

in

place

the letters "DA" will

18

deep alarms, press

of the 0

if desired. If both

key,

disappearfrom

deepalarm

the

DEEP

0,

—H

b

ii

19

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