Eagle Electronics Fish Finder ID 128 User Manual

Fish ID 128  
Fish ID 128  
INSTALLATION AND OPERATION  
INSTRUCTIONS  
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INTRODUCTION  
ThankyouforpurchasinganEaglesonar.YourFishID128isahighquality  
sonar designed for both professional and novice fishermen. This unit has  
anautomaticfeaturethatfindsanddisplaysthebottom,fish,structure,and  
more! All you have to do is press the on key. However, if you wish to fine  
tune the unit, simply press a menu key. This unit has powerful features  
available through easy-to-use menus.  
TogetstartedwithyourEaglesonar,firstreadtheinstallationsection.This  
is where it all begins. Improper installation can cause problems down the  
road. After you’ve read the instructions, install the unit, then read the rest  
ofthemanual. Themoreyouknowaboutyourunit, thebetteritwillperform  
for you. Take this manual for reference when you head for the water.  
SPECIFICATIONS  
Dimensions ...................... 5.9" W x 5.35" H x 3.4" D  
Input Voltage .................... 10 - 15 vDC  
Current Drain ................... 150 ma (lights off)  
........................... 250 ma (lights on)  
Transmitter  
Frequency.......... 192 kHz  
Output Power..... 275 watts (peak-to-peak)  
........................... 37.5 watts (RMS)  
Display ........................... 128 pixels (H) x 64 pixels (W)  
........................... Supertwist Liquid Crystal Display  
5.9"  
3.4"  
NOTICE!  
The storage temperature for your unit is from -4 degrees to +167 degrees  
Fahrenheit (-20 degrees to +75 degrees Celcius). Extended storage in tempera-  
tures higher or lower than specified will damage the liquid crystal display in your  
unit. This type of damage is not covered by the warranty. For more information,  
contact the factory customer service department or your local service center.  
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INSTALLATION - Bracket  
You can install the unit on the top of a dash or from an overhead with the  
supplied bracket. It can also be installed in the dash with an optional IDA-  
3 or IDA-4 mounting kit. If you use the supplied bracket, you may be  
interested in the optional GBSA-1 swivel bracket kit. This converts the  
gimbal bracket to a swivel mount which can be used on the dash or  
overhead mounting positions. Installation instructions for the in-dash and  
swivel mounting kits are supplied with the adapter kits.  
Mount the unit in any convenient location, provided there is clearance  
whenit’stiltedforthebestviewingangle. Holesinthebracket’sbaseallow  
woodscreworthroughboltmounting.Itmaybenecessarytoplaceapiece  
of plywood on the back side of thin panels to reinforce the panel. Make  
certain there is enough room behind the unit to attach the power and  
transducer cables.  
Drill a hole in the dash for the power and transducer cables. The best  
locationforthisholeisimmediatelyunderthegimbalbracket.Thisway,the  
bracket covers the hole. The smallest hole the power/transducer cable  
connector can pass through is 5/8". Note: Install the transducer before  
wiring the power cable!.After installing the transducer and power cables,  
slidethebracketoverthehole,thenroutethetransducerandpowercables  
outtheslotinthebackofthebracket.Finally,fastenthebrackettothedash.  
FISH ID 128  
GIMBAL BRACKET  
RUBBER WASHER  
PLASTIC WASHER  
(PORTABLE UNITS ONLY)  
GIMBAL KNOB  
Attach the unit to the gimbal bracket using the supplied gimbal knobs and  
washers as shown above.  
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PERMANENT MOUNT TRANSDUCER INSTALLATION  
The HS-WSPC supplied with your sonar is a transom mount transducer.  
It can be installed on any outboard or stern-drive (inboard\outboard)  
powered boat.  
The “kick-up” mounting bracket helps prevent damage if the transducer  
strikes an object while the boat is moving. If the transducer does “kick-  
up”, the bracket can easily be pushed back in place without tools.  
Read the enclosed transducer installation instructions carefully before  
attempting the installation. Determine which of the mounting positions is  
right for your boat. Use extreme care when mounting the transducer,  
since the transducer location is the most critical part of a sonar installa-  
tion. If it isn’t done properly, the sonar can’t perform at it’s designed  
potential.  
Location - General  
1. The transducer must be placed in a location that has a smooth flow  
of water at all times. If the transducer is not placed in a smooth flow of  
water, interference will show on the sonar’s display in the form of ran-  
dom lines or dots whenever the boat is moving.  
2. The transducer should be installed with it’s face pointing straight  
down, if possible.  
3. Make certain the transducer's location doesn’t interfere with the  
trailer or hauling of the boat. Also, don’t mount it closer than approxi-  
mately one foot from the engine’s lower unit. This will prevent cavitation  
interference with the propeller. Typically, the transducer should be  
mounted as deep in the water as possible. This increases the chance  
that it will be in the water in high speed and reduces the possiblity of air  
bubble interference.  
POOR LOCATION  
POOR ANGLE  
GOOD LOCATION  
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4. If possible, route the transducer cable away from other wiring on the  
boat. Electrical noise from engine wiring, bilge pumps, and areators can  
be displayed on the sonar’s screen. Use caution when routing the trans-  
ducer cable around these wires.  
CAUTION!  
CLAMP THE TRANSDUCER CABLE TO  
TRANSOM NEAR THE TRANSDUCER. THIS  
WILL HELP PREVENT THE TRANSDUCER  
FROM ENTERING THE BOAT IF IT IS  
KNOCKED OFF AT HIGH SPEED.  
GOOD LOCATION  
Transducer Assembly and Mounting  
The best way to install this transducer is to loosely assemble all of the  
parts first, then place the transducer’s bracket against the transom and  
see if you can move the transducer so that it’s parallel with the ground.  
1. Press the two small plastic ratchets into the sides of the metal bracket  
as shown below. Notice there are letters molded into each ratchet.  
Place each ratchet into the bracket with the letter “A” aligned with the  
dot stamped into the metal bracket.This position sets the transducer’s  
coarse angle adjustment for a fourteen (14) degree transom. Most  
outboard and stern-drive transoms have a fourteen degree angle.  
DOT  
2. Slide the transducer between the two ratchets. Temporally slide the  
bolt though the transducer assembly and hold it against the transom.  
Looking at the transducer from the side, check to see if it will adjust so  
that its face is parallel to the ground. If it does, then the “A” position is  
correct for your hull.If the transducer’s face isn’t parallel with the ground,  
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RATCHETS  
remove the transducer and ratchets from the bracket. Place the ratch-  
ets into the holes in the bracket with the letter “B” aligned with the dot  
stamped in the bracket. Reassemble the transducer and bracket and  
place them against the transom. Again, check to see if you can move  
the transducer so it’s parallel with the ground.If it does, then go to step  
3. If it doesn’t, repeat step 2, but use a different letter until you can  
place the transducer on the transom correctly.  
3. Once you determine the correct position for the ratchets, assemble  
the transducer as shown below. Don't tighten the lock nut at this time.  
METAL  
WASHER  
NUT  
RUBBER  
WASHERS  
METAL  
WASHER  
BOLT  
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4. Hold the transducer and bracket assembly against the transom. The  
transducer should be roughly parallel to the ground.The bottom of the  
transducer bracket should be in line with the bottom of the hull. Don't  
let the bracket extend below the hull! Mark the center of the slots for  
the mounting holes. Drill two 5/32" holes in the marked locations for  
the #10 screws supplied with the transducer.  
TRANSOM  
SIDE VIEW  
5. Remove the transducer from the bracket and re-assemble it with the  
cable passing through the bracket over the bolt as shown below. At-  
tach the transducer to the transom. Slide the transducer up or down  
until it’s aligned properly on the transom as shown below. Tighten the  
bracket’s mounting screws.Adjust the transducer so that it’s parallel to  
the ground and tighten the lock nut until it touches the flat washer, then  
add 1/4 turn. Don’t over tighten the lock nut! If you do, the transducer  
won’t “kick-up” if it strikes an object in the water.  
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6. Route the transducer cable to the sonar unit. Make certain to leave  
some slack in the cable at the transducer as shown at the bottom of  
the previous page. If possible, route the transducer cable away from  
other wiring on the boat.Electrical noise from the engine’s wiring, bilge  
pumps, VHF radio wires and cables can be picked up by the sonar.  
IMPORTANT!  
Clamp the transducer cable to the transom close to the transducer. This  
can prevent the transducer from entering the boat if it is knocked off at  
high speed.  
7. Make a test run to determine the results. If the bottom is lost at high  
speed, or if noise appears on the display, try sliding the transducer  
bracket down. This puts the transducer deeper into the water, hope-  
fully below the turbulence causing the noise. Don't allow the trans-  
ducer bracket to go below the bottom of the hull!  
Fish Arches  
If you do not get good fish arches on your display, it could be the  
transducer is not parallel with the ground when the boat is at rest in the  
water, or at slow trolling speeds. If the arch slopes up, but not back  
down, then the front of the transducer is too high and needs to be  
lowered. If only the back half the the arch is printed, then the nose of the  
transducer is angled too far down and needs to be raised.  
TRANSDUCER AIMED TOO FAR  
TRANSDUCER AIMED TOO  
BACK  
FAR FORWARD  
PROPER TRANSDUCER ANGLE  
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POWER CONNECTIONS -PERMANENT MOUNT UNITS ONLY  
IMPORTANT! INSTALL THE TRANSDUCER BEFORE WIRING THE POWER CABLE!  
The Fish ID 128 works from a 12 volt DC system only. For the best results,  
run the power cable directly to the boat’s battery. Keep the power cable  
awayfromotherboatwiring,especiallytheengine’swires.Thiswillgivethe  
bestisolationfromelectricalnoise. Ifthesuppliedcableisnotlongenough  
to reach the battery, splice #18 gauge insulated wire to it. If you do extend  
thepowercable,makecertaintoattachthein-linefuseholdersuppliedwith  
the unit to the battery or power source. This will protect both the unit and  
the power cable in the event of a short. Use only a 3-amp fuse.  
IMPORTANT!  
Do not use this product without a 3-amp fuse wired into the power cable!  
Failure to use a 3-amp fuse will void your warranty!  
You can also attach the power cable to an accessory or power buss,  
however,youmayhaveproblemswithelectricalinterference.Thisunithas  
reverse polarity protection. No damage will occur if the power wires are  
reversed. However, the unit will not work until the wires are attached  
correctly.  
TO  
SONAR  
UNIT  
TO  
TRANSDUCER  
RED  
BLACK  
WIRE  
WIRE  
3 amp  
FUSE  
12 VOLT  
BATTERY  
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FISH ID 128 PORTABLE ASSEMBLY  
INSTALLING THE BATTERIES  
Release the latch on the front of the battery case. Open the compartment  
and install eight "D" cell batteries into the adapter. For the longest life, we  
recommendyouusealkalinebatteries.Thisbatterycasewillalsoholdone  
rechargable battery instead of the "D" cells. See the enclosed coupon for  
more information on the rechargable battery.  
"D" CELL BATTERY  
After installing the batteries, close the case and plug the power cable on  
the battery case into the sonar unit. Plug the adapter cable into the back  
of the sonar unit. Turn the sonar unit on. If it doesn't work, make certain  
thebatteryterminalsaremakinggoodcontactagainstthebatterycontacts.  
Also check the wiring connections on the D-cell battery adapter. The red  
wire on the power cable should be attached to the red wire on the D-cell  
battery adapter and the power cable's black wire should be connected to  
theblackwireontheD-cellbatteryadapter.Ifitstilldoesn'twork,checkthe  
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battery voltage. Most of the complaints we receive about portable units  
result from stale batteries. Make certain the ones you buy are fresh.  
Always remove batteries from the battery compartment before storing the  
unit as dead batteries can leak and corrode the contacts.  
In cold weather the efficiency of dry cell batteries drops with the tempera-  
ture.Wefinditagoodideatohavethesonarunitgoodandwarmalongwith  
the batteries before we leave home. If the batteries do lose a charge, you  
cansometimesrestorethembyplacingtheminawarmroomorcarinterior.  
A better way is to replace them with batteries that have been kept warm.  
Don'teverheatthebatteriesoveranopenflameordirecthotairontothem.  
A fire or explosion could result.  
PORTABLE TRANSDUCER ASSEMBLY  
Assemble the transducer and bracket as shown below. Attach the  
transducer to the bracket with the supplied hardware. Make certain there  
is one washer on each side of the transducer, inside the bracket. Slide the  
other washer over the end of the bolt and thread the nut onto it. Screw the  
suctioncupontothebracketusingthesuppliedscrewandflatwasher. Tie  
the nylon cord through the hole in the top of the bracket. When using this  
transducer, tie the other end of the nylon cord to the boat. This will help  
prevent the loss of the transducer if it comes off the boat.  
TIE  
NYLON  
CORD  
HERE  
SCREW  
NUT  
BOLT  
WASHER  
WASHER  
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Cleanthechosenareaofthehullbeforeattachingthesuctioncup. Locate  
the transducer on the hull as shown below. Don't allow the bracket to go  
below the hull, as water pressure against it can cause the suction cup to  
come off at speed. Moisten the cup, then press it onto the hull as firmly as  
possible. Tie the nylon cord to the boat and route the transducer cable to  
the sonar unit. Plug the transducer connector into the Fish ID 128. Your  
portable sonar is now ready for use.  
HULL  
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KEYBOARD BASICS  
The unit sounds a tone when you  
press any key. This tells you the  
unit has accepted a command.  
PWR/CLEAR  
Use this key to turn the unit on and  
off. It also clears menu selections  
and the menus from the screen.  
Fish ID 128  
Note!Toturntheunitoff,pressand  
HOLD the PWR/CLEAR down. A  
countdown from 3 seconds ap-  
pears on the screen when you hold the PWR key down for more than a  
couple of seconds. When the countdown reaches zero, the unit shuts off.  
This prevents you from accidentally turning the unit off.  
MENU FWD/MENU REV  
This sonar has many features that are accessed with these keys. To scroll  
forward through the menus, press the MENU FWD key repeatedly. To go  
backwards through the menus, press the MENU REV key repeatedly.  
UP and DOWN ARROWS  
Use these keys to adjust virtually every feature and function on the unit.  
The up arrow key also stops the chart when no menus are displayed.  
DISPLAY - General  
The lights flash for about ten seconds when the unit is turned on. Two  
menus appear, one after the other. The menus are the lights (BACK  
LIGHT) and feet-meter selection (FEET/METER). To turn the lights on,  
presstheuparrowkeywhilethebacklightmenuisshowing.Toswitchfrom  
feet to meters, press the down arrow key  
when the proper menu appears. The menus  
disappear after a few seconds. If you don’t  
want to wait, press the PWR/CLEAR key to  
clear the menus from the screen.  
When the unit is first turned on, the display  
appears similar to the one at right. The unit is  
in the automatic mode. The depth range  
displays on the upper left side of the screen.  
In the example at right, the range is from 0 to  
60 feet and the bottom depth is 48.6 feet.  
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NOTE: Turning the unit off erases all user settings and it returns to the  
systemdefaults.Forexample,ifyouturnthelightson,thenturntheunitoff,  
the next time you turn the unit on, the lights will be off, since the default  
setting for the lights is off.  
MENUS  
This sonar unit uses menus to guide you through the unit’s functions and  
features. The menu keys accesses these features, allowing you to  
customize the unit to your particular needs and water conditions. All you  
have to do to leave one menu and enter another is press a menu key  
repeatedly.Ifyouevergetlostinthemenus,simplypressthePWR/CLEAR  
key. This clears the menus from the screen.  
Menus change depending on the mode the unit is in. For example, if the  
automatic mode is turned off, the sensitivity menu changes from “AUTO  
SENS” to “MAN SENS.” Other messages may appear in menu boxes or  
new menus can appear, again depending on previous selections.  
Onthescreenshownonthepreviouspage,thebacklightmenuisshowing.  
Pressing the up arrow key while this menu shows turns the back lights on.  
OPERATION  
AUTOMATIC  
When the unit is first turned on, the automatic feature is enabled. This  
feature automatically adjusts the unit’s range and sensitivity according to  
waterconditions. Italwayskeepsthebottomdisplayedinthelowerportion  
of the screen.  
To turn the automatic feature off, press a menu key until the AUTO/MAN  
menu appears. Now press the down arrow key. This highlights the letters  
“MAN.” The unit is now in the manual mode.  
Wait a few seconds and the menu will scroll  
off the screen’s left side. Pressing the PWR/  
CLEAR key also erases it. To turn the auto-  
matic feature on again, repeat the above  
steps, except this time press the up arrow  
key.  
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RANGE  
You can’t adjust the range when the auto-  
matic mode is on. It is adjustable when the  
unit is in the manual mode, however. To do  
so, first put the unit in the manual mode. Now  
press a menu key until the “RANGE SEL”  
menu appears as shown at right. The current  
rangeshowsatthebottomofthemenu.Inthis  
case, the range is 60 feet. Now press the up  
arrow key to decrease the range, the down  
arrow key increases the range. After you  
select the desired range, press the PWR/  
CLEAR key to clear the display. If you wait a  
few seconds, it automatically clears.  
The Fish ID 128 has the following ranges:  
10, 20, 40, 60, 120, 240, 480, and 900 feet.  
and  
5, 10, 20, 40, 60, 100, 200, and 300 meters.  
NOTE: The depth capability of this sonar depends on the transducer  
installation, water and bottom conditions, and other factors.  
ZOOM  
The zoom feature enlarges all echoes on the screen. If the unit is in the  
automatic mode, it tracks the bottom signal, always keeping it near the  
bottom of the screen. This lets you see small detail, at the same time  
enlargingallechoesthatappearonthescreen.  
Remember, however, that the unit doesn’t  
track the bottom while in the manual mode.  
To zoom the display, first press a menu key  
untiltheRANGE/ZOOMmenuappears. Now  
press the down arrow key as shown at right.  
Thisswitchestheunitintothezoommode.All  
echoes are shown at twice their normal size.  
To turn the zoom off, select the RANGE/  
ZOOM menu, then press the up arrow key.  
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SENSITIVITY  
The sensitivity menu lets you control the unit’s ability to pick up echoes. A  
low sensitivity level excludes much of the bottom information, fish signals,  
and other detail. High sensitivity settings lets you see features, but it can  
also clutter the screen with noise and other unwanted signals. Typically,  
the best sensitivity level shows a good, solid bottom signal with grayline.  
This unit adjusts the sensitivity level to keep a solid bottom signal on the  
screen. It adds a little extra when it’s in the automatic mode. This gives it  
the capability to show fish and other detail. However, situations occur  
where it becomes necessary to increase or decrease the sensitivity level.  
Typically, this occurs when you wish to see more detail, so you need to  
increasethesensitivity. Theproceduretoadjustitisthesamewhetherthe  
unit is in the automatic or manual mode.  
To change the sensitivity level, first press a  
menu key until the sensitivity menu appears.  
If the unit is in automatic, the menu shows  
“AUTO SENS.” Otherwise, the menu shows  
“MAN SENS.” Now press the up arrow key to  
increase the sensitivity, the down arrow to  
decreaseit. Echoesscrollingontothescreen  
will also show the effects of the sensitivity  
change. If you reach the maximum or mini-  
mum sensitivity level, a tone sounds alerting  
you to the limits.  
After you’ve adjusted the unit to the desired  
sensitivitylevel,pressthePWR/CLEARkeytoclearthedisplay.Ifyouwait  
a few seconds, it will automatically clear.  
FISH ID FEATURE  
The Fish ID feature identifies targets that meet certain conditions as fish.  
The microcomputer analyses all echoes and eliminates surface clutter,  
thermoclines,andotherundesirablesignals.Inmostinstances,remaining  
targets are fish. The Fish ID feature displays symbols on the screen in  
place of the actual fish echoes. There are three symbol sizes: small,  
medium, andlarge. Theseshowtherelativesizebetweentargets. Inother  
words, it displays a small fish symbol when it thinks a target is a small fish,  
a medium fish symbol on a larger target, etc.  
Themicrocomputerissophisticated,butitcanbefooled.Itcan'tdistinguish  
between fish and other suspended objects such as turtles, submerged  
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floats, air bubbles, etc. Individual tree limbs  
extendingoutwardsfromagroupoflimbsare  
the hardest objects for the Fish ID feature to  
distinguish from fish. You may see Fish ID  
symbolsonthescreenwhen,infact,thereare  
nofish.PracticewiththeunitwhentheFishID  
feature is on and off to become more familiar  
with Fish ID. To turn this feature off, press a  
menu key until the Fish ID feature’s menu  
appears as shown at right. Now press the  
down arrow key. To turn it on, repeat the  
above steps, but press the down arrow key  
instead.  
The Fish ID feature can’t be used when the unit is in the manual mode. If  
you turn the automatic feature off, the Fish ID feature will automatically be  
turned off, also.  
FISHTRACK™  
This sonar automatically displays the depth of a target when the Fish ID  
feature places a fish symbol on the screen as shown below left. This  
feature is automatically enabled when the unit is turned on. To turn it off or  
on again, press a menu key repeatedly until the Fish Track menu appears  
as shown below. Now press the down arrow key to turn it off. Remember,  
Fish ID must be on in order to use the Fish Track feature.  
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CHART SPEED  
The rate echoes scroll across the screen is  
called the chart speed. It’s adjustable by  
pressing a menu key until the chart speed  
menu appears. Chart speed is set to maxi-  
mum when the unit is first turned on. To  
decrease it, press the down arrow key. Press  
theuparrowkeytoincreasethespeedagain.  
Thepercentageofchartspeedalsoshowson  
this menu. Echoes scrolling onto the screen  
willalsoshowtheeffectsofthechange.Ifyou  
reach the maximum or minimum level, an  
warning tone sounds.  
CHART STOP  
To stop the chart, first clear any menu from the screen by pressing the  
PWR/CLEARkey.Youcan’tstopthechartwhileamenuisdisplayed.Now  
presstheuparrowkey.ThechartwillfreezeandthewordSTOPappears  
at the top right portion of the screen. To start the chart, press the up arrow  
key again or the PWR/CLEAR key.  
DISPLAY MODE  
This sonar has two different screen modes -  
Chart 1, (shown at right) which is the normal  
mode and Chart 2 which is the FasTrak  
mode. To change modes, press the MENU  
key until the “DISP MODE” (Display Mode)  
menu appears. Then press the up or down  
arrow keys to change it.  
CHT 2 (Chart #2)  
ThisistheFasTrakmode. Ithasthefollowing  
features:  
1. Automatic Off  
2. Fish ID Feature Off  
3. Digital Depth Display Off  
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ALARMS  
FISH ALARM  
The Fish Alarm sounds a tone when a fish  
symbol appears on the screen. To use the  
fish alarm, press a menu key until the “FISH  
ALARM” menu appears on the screen. Now  
press the up arrow key to turn the alarm on.  
Repeat the above steps to turn the alarm off.  
SHALLOW ALARM  
The shallow alarm is triggered only by the  
bottomsignal. Nootherechowillactivatethis  
alarm. The shallow alarm sounds an alarm  
tone when the bottom goes shallower than the alarm’s setting.  
To set the shallow alarm, press a menu key repeatedly until the “SHAL  
ALARMmenuappears.Pressthedownarrowkeytoincreasetheshallow  
alarm's depth setting, the up arrow key decreases it. The number in the  
shallow alarm’s menu box shows the current  
shallow alarm setting. When the number  
reaches the desired setting, release the ar-  
row key. When the bottom depth goes shal-  
lower than the alarm’s setting an alarm tone  
sounds. At the same time the alarm sounds,  
a message box appears on the screen as  
shown below.  
Press the down arrow key to silence the  
alarm. This will turn the alarm sound off until  
the shallow alarm is triggered again.  
To turn the alarm off, press a menu key until  
theshallowalarmmenuappears.Thenpress  
the up arrow key until the word “OFF” ap-  
pears.  
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LIGHTS  
The display is backlighted for night use. To  
turnthebacklightsonoroff,pressamenukey  
repeatedlyuntilthebacklightmenuappears.  
Nowpresstheuparrowtoturnthelightsonor  
thedownarrowtoturnthemoff.Themenuwill  
clear automatically after a few seconds.  
FEET/METER  
Thisunitcanshowthedepthinfeetormeters  
When the unit is in the metric mode, all depth  
readings, ranges, zooms, and alarm settings  
areinmeters. Whenaunitisinthefeetmode,  
all of the above settings are in feet.  
To change from feet to meters or vice-versa,  
press a menu key until the FEET/METER  
menu appears as shown at the bottom of the  
previous page. Press the down arrow key to  
switchtometric,theuparrowtoswitchtofeet.  
Displays show in feet when the unit is first  
turned on. The menu will clear automatically  
after a few seconds or you can press the PWR/CLEAR key to clear the  
screen.  
DISPLAY CONTRAST  
Theunit’sdisplaycontrastisadjustabletosuitdifferentlightingconditions.  
Thiswillhelpyouseethescreenfromdifferent  
angles, or at various times of the day.  
To adjust the contrast, press a menu key until  
theDARK/LIGHTmenuappears.Todecrease  
it, press the down arrow key. Press the up  
arrow key to increase the contrast. The bar  
graph in the Dark/Light menu box shows a  
graph of the contrast. The screen will also  
show the effects of the change. If you reach  
themaximumorminimumlevel,atonesounds  
alerting you to the limits. The menu will clear  
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automatically after a few seconds or press the PWR/CLEAR key to clear  
the screen.  
ASP (Advanced Signal Processing)  
ASPisaprogramembeddedinthecomputer  
thatisspecificallydesignedtoeliminatenoise.  
It continually monitors the signals from the  
receiver, determineswhichechoesarenoise  
and rejects them. This allows true target  
echoes to display on the screen with a mini-  
mum of clutter. This feature is especially  
useful since it typically lets you operate the  
boat at all speeds without adjusting the sen-  
sitivity or other controls. When the unit is first  
turned on, ASP is enabled. To turn ASP off,  
press a menu key repeatedly until the ASP  
menu appears. Now press the up arrow to  
turn it on or the down arrow to turn it off. The menu will clear automatically  
after a few seconds or you can press the PWR/CLEAR key to clear the  
screen.  
SIMULATOR  
A simulator is built in that can show a simu-  
lated bottom signal with fish. All features of  
thesonarworknormallywhenthesimulatoris  
inuse.Youcanchangetherange,zoom,and  
use the alarms as desired. To use the simu-  
lator, press a menu key repeatedly until the  
SONAR SIM menu appears. Now press the  
uparrowtoturniton.Repeattheabovesteps  
to turn it off, or turn the unit off and back on  
again.  
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FISH ARCHES  
Fish arches are created when the cone of sound passes over a fish. The  
distance to a fish when the cone first strikes it is shown as "A" below.  
When the center of the cone strikes the fish, the distance is shorter as  
shown "B". As the cone leaves the fish, the distance increases again as  
shown in "C".  
When the Fish I.D. mode is off, the depth of the water will affect the size  
and shape of the fish arch due to the cone angle diameter. For example,  
if the cone passes over a fish in shallow water, the signal displayed on  
the unit may not arch at all. This is due to the narrow cone diameter and  
the resolution limitations of the display.  
Very small fish probably will not arch at all. Medium sized fish will show a  
partial arch, or a shape similar to an arch if they’re in deep water. Large  
fish will arch, but turn the sensitivity up in deeper water to see the arch.  
Because of water conditions, such as heavy surface clutter, ther-  
moclines, etc., the sensitivity sometimes cannot be increased enough to  
get fish arches.  
BOAT'S DIRECTION OF TRAVEL  
A
C
B
A
C
B
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One of the best ways to get fish arches is to expand or “zoom” a  
segment of the water. For example, from 45 to 60 feet. The smaller the  
segment, the better the screen resolution will be. The easiest way to do  
this is with the Zoom feature. This feature expands the echoes, making it  
easier to see detail. For the best results, turn the sensitivity up as high as  
possible without getting too much noise on the screen. In medium to  
deep water, this method should work to display fish arches.  
If you see fish signals when the unit is in the manual mode, but don't get  
fish symbols when Fish I.D. is on, try increasing the sensitivity.  
WATER TEMPERATURE AND THERMOCLINES  
Water temperature has an important-if not controlling-influence upon the  
activities of all fish. Fish are cold blooded and their bodies are always the  
temperature of the surrounding water. During the winter, colder water  
slows down their metabolism. At this time, they need about a fourth as  
much food as they consume in the summer.  
Most fish don’t spawn unless the water temperature is within rather  
narrow limits. A surface temperature meter can help you identify the  
desired surface water spawning temperatures for various species. Trout  
can’t survive in streams that get too warm. Bass and other fish eventu-  
ally die out when stocked in lakes that remain too cold during the  
summer. While some fish have a wider temperature tolerance than  
others, each has a certain range within which it tries to stay. Schooling  
fish suspended over deep water lie at the level that provides this tem-  
perature. We assume they are the most comfortable here.  
The temperature of water in the lake is seldom constant from top to  
bottom. Layers of different temperatures form, and the junction of a  
warm and cool layer of water is called a thermocline. The depth and  
thickness of the thermocline can vary with the season or time of day. In  
deep lakes there may be two or more at different depths. Thermoclines  
are important to fishermen because they are areas where fish are active.  
Many times bait fish will be above the thermocline while larger game fish  
will suspend in or just below it.  
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SURFACE LAYER  
ABSORBS HEAT  
FROM THE SUN  
EPILIMNION  
THERMOCLINE  
MOST PRODUCTIVE  
ZONE FOR FISHING  
HYPOLIMNION  
The sonar can detect this invisible layer in the water, but the sensitivity  
will probably have to be turned up to see it.  
TROUBLESHOOTING  
If your unit is not working, or if you need technical help, please use the  
following troubleshooting section before contacting the factory customer  
service department. It may save you the trouble of returning your unit.  
Unit won’t turn on:  
1. Check the power cable’s connection at the unit. Also check the wiring.  
2. Make certain the power cable is wired properly. The red wire connects  
to the positive battery terminal, black to negative or ground.  
3. Check the fuse.  
4. Measure the battery voltage at the unit’s power connector. It should be  
at least 11 volts. If it isn’t, the wiring to the unit is defective, the battery  
terminals or wiring on the terminals are corroded, or the battery needs  
charging.  
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Unit freezes, locks up, or operates erratically:  
1. Electrical noise from the boat’s motor, trolling motor, or an accessory  
maybeinterferingwiththesonarunit.Reroutingthepowerandtransducer  
cables away from other electrical wiring on the boat may help. Route the  
sonar unit’s power cable directly to the battery instead of through a fuse  
block or ignition switch  
2. Inspect the transducer cable for breaks, cuts, or pinched wires.  
3. Check the transducer and power connector. Make certain it's securely  
plugged in to the unit.  
Weak bottom echo, digital readings erratic, or no fish signals:  
1. Make certain transducer is pointing straight down. Clean the face of the  
transducer. Oil, dirt, and fuel can cause a film to form on the transducer,  
reducing its effectiveness. If the transducer is mounted inside the hull, be  
sureitisshootingthroughonlyonelayeroffiberglassandthatitissecurely  
bondedtothehull.DoNOTuseRTVsiliconerubberadhesiveorMarinetexTM.  
2. Electrical noise from the boat’s motor can interfere with the sonar. This  
causes the sonar to automatically increase its Discrimination or noise  
rejection feature. This can cause the unit to eliminate weaker signals such  
as fish or even structure from the display.  
3. The water may be deeper than the sonar’s ability to find the bottom. If  
the sonar can’t find the bottom signal while it’s in the automatic mode, the  
digital will flash continuously. It may change the range to limits far greater  
thanthewateryouarein.Ifthishappens,placetheunitinthemanualmode,  
then change the range to a realistic one, (for example, 0-120 feet) and  
increasethesensitivity. Asyoumoveintoshallowerwater, abottomsignal  
should appear.  
4. Check the battery voltage. If the voltage drops, the unit’s transmitter  
power also drops, reducing its ability to find the bottom or targets.  
Bottom echo disappears at high speeds or erratic digital reading or  
weak bottom echo while boat is moving  
1. The transducer may be in turbulent water. It must be mounted in a  
smooth flow of water in order for the sonar to work at all boat speeds. Air  
bubbles in the water disrupt the sonar signals, interfering with its ability to  
find the bottom or other targets. The technical term for this is ‘Cavitation’.  
2. Electrical noise from the boat’s motor can interfere with the sonar. This  
causes the sonar to automatically increase its Discrimination or noise  
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rejection feature. This can cause the unit to eliminate weaker signals such  
as fish or even structure from the display. Try using resistor spark plugs or  
routing the sonar unit’s power and transducer cables away from other  
electrical wiring on the boat.  
No fish arches when the Fish ID feature is off:  
1. Make certain transducer is pointing straight down. This is the most  
common problem if a partial arch is displayed. See the Fish Arch section  
in your owner's manual for more information.  
2. The sensitivity may not be high enough. In order for the unit to display  
afisharch, ithastobeabletoreceivethefish’sechofromthetimeitenters  
theconeuntilitleaves.Ifthesensitivityisnothighenough,theunitdisplays  
the fish only when it is in the center of the cone.  
3. Use the Zoom feature. It is much easier to display fish arches when  
zoomed in on a small range of water than a large one. For example, you  
willhavemuchbetterluckseeingfisharcheswitha30to60footrangethan  
a0to60footrange. Thisenlargesthetargets, allowingthedisplaytoshow  
much more detail.  
4. The boat must be moving at a slow trolling speed to see fish arches. If  
the boat is motionless, fish stay in the cone, showing on the display as  
straight horizontal lines.  
ELECTRICAL NOISE  
A major cause of sonar problems is electrical noise. This usually appears  
onthesonar’sdisplayasrandompatternsofdotsorlines.Inseverecases,  
it can completely cover the screen with black dots, or cause the unit  
operate erratically, or not at all.  
Toeliminateorminimizetheeffectsofelectricalnoise,firsttrytodetermine  
the cause. With the boat at rest in the water, the first thing you should do  
is turn all electrical equipment on the boat off. Make certain the engine is  
off,also.Turntheuniton,thenturnoffASP(AdvancedSignalProcessing).  
There should be a steady bottom signal on the display. Now turn on each  
pieceofelectricalequipmentontheboatandviewtheeffectonthesonar’s  
display. For example, turn on the bilge pump and view the sonar display  
for noise. If no noise is present, turn the pump off, then turn on the VHF  
radio and transmit. Keep doing this until all electrical equipment has been  
turned on, their effect on the sonar display noted, then turned off.  
If you find noise interference from an electrical instrument, trolling motor,  
pump,orradio,trytoisolatetheproblem.Youcanusuallyreroutethesonar  
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unit’s power cable and transducer cable away from the wiring that is  
causing the interference. VHF radio antenna cables radiate noise when  
transmitting, sobecertaintokeepthesonar’swiresawayfromit. Youmay  
need to route the sonar unit’s power cable directly to the battery to isolate  
it from other wiring on the boat.  
Ifnonoisedisplaysonthesonarunitfromelectricalequipment, thenmake  
certaineverythingexceptthesonarunitisturnedoff, thenstarttheengine.  
Increase the RPM with the gearshift in neutral. If noise appears on the  
display, the problem could be one of three things; spark plugs, alternator,  
or tachometer wiring. Try using resistor spark plugs, alternator filters, or  
routing the sonar unit’s power cable away from engine wiring. Again,  
routing the power cable directly to the battery helps eliminate noise  
problems. Make certain to use the in-line fuse supplied with the unit  
when wiring the power cable to the battery!  
When no noise appears on the sonar unit after all of the above tests, then  
the noise source is probably cavitation. Many novices or persons with  
limitedexperiencemakehastysonarinstallationswhichfunctionperfectly  
in shallow water, or when the boat is at rest. In nearly all cases, the cause  
of the malfunction will be the location and/or angle of the transducer. The  
face of the transducer must be placed in a location that has a smooth flow  
of water at all boat speeds. Read the transducer installation instructions in  
this manual for the best mounting position.  
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EAGLE ELECTRONICS  
FULL ONE-YEAR WARRANTY  
“We", “our”, or “us” refers to EAGLE ELECTRONICS, a division of LEI, the manufacturer of  
this product. “You” or “your” refers to the first person who purchases this product as a  
consumer item for personal, family, or household use.  
We warrant this product against defects or malfunctions in materials and workmanship, and  
against failure to conform to this product’s written specifications, all for one year (1) from the  
date of original purchase by you. WE MAKE NO OTHER EXPRESS WARRANTY OR  
REPRESENTATION OF ANY KIND WHATSOEVER CONCERNING THIS PRODUCT.  
Your remedies under this warranty will be available so long as you can show in a reasonable  
manner that any defect or malfunction in materials or workmanship, or any non-conformity  
with the product’s written specifications, occurred within one year from the date of your  
original purchase, which must be substantiated by a dated sales receipt or sales slip. Any  
such defect, malfunction, or non-conformity which occurs within one year from your original  
purchase date will either be repaired without charge or be replaced with a new product  
identicalorreasonablyequivalenttothisproduct, atouroption, withinareasonabletimeafter  
our receipt of the product. If such defect, malfunction, or non-conformity remains after a  
reasonable number of attempts to repair by us, you may elect to obtain without charge a  
replacement of the product or a refund for the product. THIS REPAIR, REPLACEMENT, OR  
REFUND (AS JUST DESCRIBED) IS THE EXCLUSIVE REMEDY AVAILABLE TO YOU  
AGAINST US FOR ANY DEFECT, MALFUNCTION, OR NON-CONFORMITY CONCERN-  
ING THE PRODUCT OR FOR ANY LOSS OR DAMAGE RESULTING FROM ANY OTHER  
CAUSE WHATSOEVER. WE WILL NOT UNDER ANY CIRCUMSTANCES BE LIABLE  
TO ANYONE FOR ANY SPECIAL, CONSEQUENTIAL, INCIDENTAL, OR OTHER INDI-  
RECT DAMAGE OF ANY KIND.  
Some states do not allow the exclusion or limitation of incidental or consequential damages,  
so the above limitations or exclusions may not apply to you.  
This warranty does NOT apply in the following circumstances: (1) when the product has  
been serviced or repaired by anyone other than us, (2) when the product has been  
connected, installed, combined, altered, adjusted, or handled in a manner other than  
according to the instructions furnished with the product, (3) when any serial number has  
been effaced, altered, or removed, or (4) when any defect, problem, loss, or damage has  
resulted from any accident, misuse, negligence, or carelessness, or from any failure to  
provide reasonable and necessary maintenance in accordance with the instructions of the  
owner’s manual for the product.  
We reserve the right to make changes or improvements in our products from time to time  
without incurring the obligation to install such improvements or changes on equipment or  
items previously manufactured.  
This warranty gives you specific legal rights and you may also have other rights which may  
vary from state to state.  
REMINDER: You must retain the sales slip or sales receipt proving the date of your original  
purchase in case warranty service is ever required.  
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How to Obtain Service  
(Canadian Customers Only)  
We back your investment in quality products with quick, expert service and genuine Eagle  
replacement parts. If you need service or repairs, contact the Eagle Factory Customer  
Service Department at the toll-free number listed below. A technician may be able to solve  
theproblemandsaveyoutheinconvenienceofreturningyourunit. Youwillbeaskedforyour  
unit's serial number.  
800-324-1354  
Canada Only. Monday through Friday 8:00 A.M. - 8:00 P.M. Central Time.  
How to Obtain Service  
(International Customers Only)  
If you need service or repairs, contact the dealer in the country you purchased your unit.  
WARRANTY REPAIR WILL BE HONORED ONLY IN THE COUNTRY  
UNIT WAS PURCHASED.  
Please follow the shipping instructions shown below on this page if you have to mail your  
unit to the dealer. For proper testing, repair, and service, send a brief note with the product  
describing the problem. Be sure to include your name, return shipping address, and a  
daytime telephone number.  
Shipping Information  
When sending a product for repair, we recommend you do the following:  
1. Always use the original shipping container and filler material the product was packed  
in when shipping your product.  
2 Always insure the parcel against damage or loss during shipment. Eagle does not  
assume responsiblity for goods lost or damaged in transit.  
3. For proper testing, repair, and service, send a brief note with the product describing the  
problem. Be sure to include your name, return shipping address, and a daytime  
telephone number.  
Accessory Ordering Information  
To order accessories such as power cables or transducers, please contact:  
1. Your local marine dealer. Most quality dealers that handle marine electronic equipment  
should be able to assist you with these items. Consult your local telephone directory for  
listings.  
2. Canadian customers only can write:  
Lowrance/Eagle Canada, 919 Matheson Blvd., E. Mississauga, Ontario L4W2R7  
or fax 416-629-3118  
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How to Obtain Service (U.S.A. Only)  
Webackyourinvestmentinqualityproductswithquick,expertserviceand  
genuine Eaglereplacement parts. If you're in the United States and you  
havequestions,pleasecontacttheFactoryCustomerServiceDepartment  
using our toll-free number listed below. You must send the unit to the  
factoryforwarrantyserviceorrepair.Pleasecallthefactorybeforesending  
theunit.Youwillbeaskedforyourunit'sserialnumber.Usethefollowingtoll-  
free number:  
800-324-1354  
U.S.A.only. Monday through Friday 8:00 A.M. - 8:00 P.M. Central time, except holidays.  
Your unit is covered by a full one-year warranty. (See inside for complete  
warranty details.) If your unit fails and the failure is not covered by the  
original warranty, Eagle has a flat-rate repair policy that covers your unit  
and accessories packed with the unit at the factory. There is a 180-day  
warrantyonallnon-warrantyrepairsfromthefactory,whichissimilartothe  
original warranty, but is for 180 days rather than one year. For further  
details, please call us at the above number.  
Eagle Electronics may find it necessary to change or end our shipping policies, regulations,  
and special offers at any time. We reserve the right to do so without notice.  
Accessory Ordering Information  
To order accessories such as power cables or transducers, please contact:  
1) Your local marine dealer. Most quality dealers that handle marine  
electronic equipment should be able to assist you with these items.  
Consult your local telephone directory for listings.  
2) LEI Extras, Inc. P.O. Box 129 Catoosa, OK 74015-0129  
or call  
800-324-0045  
(USA orders only.)  
EAGLE ELECTRONICS PO BOX 669 CATOOSA OK 74015  
LITHO IN U.S.A.  
988-0143-23  
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