Page 1

(
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
Page 2

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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Page 3

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
Page 4

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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Page 5

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
Page 6

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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Page 7

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
Page 8

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
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Page 9

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
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30
7
Page 10

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
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Page 11

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
Page 12

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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Page 13

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'
8°at3db
—it
H8t
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26
-
bility
and bottom
qualityofthetransducer
See the
bottom
LOWER LIMIT
11
maximum
the X-40
conditions
specifications
depth capability.
depth capa-
depends
on water
the
plus
installation.
for
typical
Page 14

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
-
ING)
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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Page 15

Setthe
UPPER
4, 0,
When
limits,
1 feetwillcausetheX-4otosound
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
Press
ap-
Use
ALARM
off or on.
selection
,._zSFNSIi!VtiY
CHANCE
PRESS
ALARM
J.
tOR4
CRAYL INE
1
—4
—1
-.
—v
—
J
LINES
FOR NO
CHANCE
PRESS.
CLEAR
SEWS/i
I
To CHANCE
PRESS
ALARM
tc4R4
SCALES
OFF
FOR NO
CHANGE
PRESS
Example:
D
—
-
Press:
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.
PDF compression, OCR, web-optimization with CVISION's PdfCompressor
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
0 IS OFF
FOR NO
CHANCE
PRESS
CLEAR
L-
tjF.
SIZE
—
Page 16

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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Page 17

Discrimination
should be an
DISC
key.
desired, (0 through 10).
immediate
Turn
To view the Discrimination
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
Use Surface
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
This can
orothertargets.
action,
with the level of SCC
boat
Inversions,
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
Then
in the noise
by pressing
setting
without
L
and
wakes,
and
Control
re-
pulse,
for the
For
Turning
to a different ievel,
SOC or
2nd,
currently
the DISC
press
displayed
0,DISC
changing it, press
Sec
I
sr:.Ns 1.' t/lT' -!:,._
key.
on the screen.
or
CLEAR,DISC.
TO CHANGE
PRESS
TUFt
I
ECL I
-4
THERE FWE
10 LE"EL3
OF 'ECC
0 IURh.E'
OFF 9CC
TO CHANGE
HI
4 3CC PRESS
0-10 ZND
FOR NO
C HHt4CE
PRESS
CLEAR
F
the X-40 on automati-
simply
SCC. The
in
2nd,
Use the arrow
use.
seconds after
simply press
There
the
—
enter a
the SOC
1e'L1.W
SHALWW
SET
ZONE ALARM
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,
The letters "ZN'
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
The
press
If
When the zone alarm is
the words ZONE ALM will
If the
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
The letters
the
on
right
and
top
ends of
larger
the shallow
on the screen.
displays
thealarm. To
deeper.
alarm bar will travel.
on the far left
echothat
Any
of the
alarmwindowup,
The
disappear.
the letters "ZA" in the lower
key
depth.
off,
press
It doesn't turn
is
changed,
don't track the
they
.t&'
Al
I
t I
T
DISPLAY
the
press
ALARM
"ZN'
displays
on
six seconds.
Any
side of the
bottom of
both
Adjust
this bar to
"win-
alarm
(top)
SET
key.
appears
adjustthetop
longer you
However,
then the arrow
first,
DISPLAY
2nd,
the alarm
triggered by
appear
the zone
__________________
________________
____________
r.
r
ZONE
A
between
orthe
hold the arrow
Release the
the zone alarm is still activated
adjusted
alarm bar
the
on
alarm
range settings.
the
of the bar
downarrow
key
portion
keys
continuously,
again.
off,
just
an
echo,
display.
settings may
ALII
;•
and bottom of
top
press
thefaster the
key,
and in six seconds
of the screen.
in the same manner.
the bottom of
to set
This won't
the alarm bar.
the alarm
)'[
8
the
arrow
up
move
keyto
press 2nd,
affect the
will
sound
need to be
ii)
H
PDF compression, OCR, web-optimization with CVISION's PdfCompressor
20
17
Page 18

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
The
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
IflND1
operation
out when the X-40 is turned off.
go
FAUTÔ1
J
LIGHT
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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