Eagle MODEL SILENT SIXSIXTY INSTALLATION INSTRUCTIONS

HOW TO OBTAIN SERVICE

Eagle Electronicswill providequek and efficientservicewith genuine

Eagle partsshouldyou ever require it. Ifyou do require service, call or writeusatthe addressbelow before sendingintheunit. Wemay beable tosaveyoutheinconvenience ofsendingtheunitback forrepairs.Ifyou dohavetoreturntheunitforservice,pleaseenclose aletter statingthe problem that you are having with the unit. This will assistus in the

testing and repairofyour depth sounder.

Mail to: EAGLE ELECTRONICS P0. BOX 669

CATOOSA, OKLAHOMA 74015

Ifyou live out of the state of Oklahoma,call 1-800-331-2301.

Ifyou live in the state ofOklahoma,call collect918-266-5373.

SCHEMATIC DIAGRAM & PARTSLIST

Should you desire a schematic and parts list for your EAGLE depth sounder,send $1.00 to the addressabove and it will be mailed to you promptlyPleasebesureandgiveus themodelandserialnumberofyour

EAGLE.

41

EAGLE

MODEL SILENT

SIX/SIXTY

INSTALLATION INSTRUCTIONS

	EAGLE ELECTRONICS
LImO IN U.S.A.	EQ. BOX 669, CATOOSA, OKLA. 74015
	966-0087-01

- -	I A DiviiOh Ol
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INTRODUCTION

Thankyou for selecting a water-

proofEAGLE depth sounder. We believe that it is the finest unit

available today, manufactured

right here inthe U.S.A. to preci- sion tolerances.

lb fully enjoy the advantages this equipment brings to you, we

you read this man-

ual thoroughly before any at-

temptat installation or use of this product.

Please fill out the warrantycard and mail it to EAGLE ELEC-

TRONICS. This will register your 1 year FULLwarranty.

We suggest thatyoukeep the original cartonthat the EAGLE

was shipped in, ever needs to be returnedto the fac-

toryfor repairs,a suitable con- tainer will be available.

POWERCONNECTIONS

Power for the

supplied by the boat's 12-volt DC electrical system. Power may be

pickedup at an accessory or powerbuss, but ifyou have prob-

lems with electrical interference, which is indicated by extraneous

flashes on the dial, it can be minimizedby connectingpower

directly to the battery (See

Figure 1.)

Ifa longer power cable is re-

quired, use ordinary #18 lamp cable availableat any hardware

or electrical supply store. Splices should be soldered. Ifthis can't

be done, use crimp-typesplices.

Simpletwistingofsplices may result in intermittentpower

connectionswhich can cause in-

terference. 'Ihpe all splices with electrical tape.

SPECIFICATIONS

Dimensionswith knobs and gimbals .711 x 8Wx 61)

Dial	0-60 (outer), 0-360 (inner)
Voltage	12 volts D.C. (operates10-15
CurrentDrain	volts)
	250 ma., one echo
PulseWidth	200-1000 cs, adjustable
OutputPower	200 watts peak to peak
	(typical)
	25 wafts RMS
	4AMP FUSE

To

12 Volts DC

(Positive)

	Fig. 1	Ground
		(Negative)

FISH SIGNALS

Here are some things that will help you understand the signals

that are displayedon your Eagle: A big fish returns a wide

signal while a small fish returns a narrow one. A school of bait

fish or minnows,nearly always near the surface, returns a great

many thin, rapid signals. Wide signals beneathindicate the

game fish which are often pres- ent under the school of little fel-

lows to feed on them.

Ifyou are cruising at three miles per hour while hunting fish with

your Eagle, a single fish 30 feet deep will return a signal for ap-

proximatelyone second. (Three miles per hour is 4.4 feet per

second and the diameter ofthe circle covered bythetransducer

is approximatelyfour feet at

that depth.) The signal returned by a fish 15 feet deep wouldlast halfa second,and from afish 60

feet deep the signal wouldlast approximatelytwo seconds.

This is a goodpoint to remember because fish often schoolin a

horizontal plane, sometimes rather widely scattered inthat

exact level, but not all vertically, and a signalthat lasts longer has to be made by more than one

fish. Of course, fish suspended at different levels, even ifonly a

few inches higher or lower inthe water, will return different sig-

nals atthecorrespondingdepths on the dial.

Remember, many kindsof game

fish like sharp drop-offs, rocky ledges,and underwater cliffs.

But, as your boat movesacross

these spots, the Eagle will be unable to show the fish because

the slopingbottomsends back such a wide signal.

Many kinds offish remainsus- pended betweenthe watersur-

face and bottomduring hot

weather. Crappieswill usually lie at a uniformdepthsimilarto a horizontal blanketin the

water.

Abig school may extend 100 feet

in each direction and as you pass over it you will get an almost constant signal, plus other flash- ing a few inches above and be-

low. A school ofwhitebass isn't

likely to cover such a big area as a school ofcrappie sometimes does, especially in the summer and fall. The signals will show

these fish occupying a greater

spread vertically (8 to 10 feet).

The largergame fish such as bass and walleyearen't likely to

be so tightlygroupedas white bass, crappie,or other panfish, and the individual members, being larger, return stronger

signals.

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TREES IN THE WATER

The signals on the dial shown here indi-

catean underwater

tree with a few fish above it. The wateris

50 feet deep, the tree

20 feet tall, and the fish are betweenten

and 13 feet deep.

Limbs at various

depths return indi- vidual signals and ac- count for the wide

band ofsignals on the dial. Brushappears

similar, though not so tall.

Bass and panfish often hang around

submerged vegetation, not only near the sur- face but down to

depths of25 or 30 feet, dependingonthe

thermocline. To detect

them, anchor bow and stern so your boat can'tmove. Constant

signals indicate tree limbs. Signals that

come and go or shift up and down are fish

— limbsdon'tmove.

IMPORTANT

		When installingthe powercable,
		make certainthatthe in-line
		fuse supplied with the unitis at-
		tached to the red conductorof
		the power cable as close to the
		powersource as possible.This
		will protect both the unitand
		the power cable in case either is
		ever shorted. A connectoris
	•	suppliedto attachthe fuse to the
	-
		power cable.

The positive conductorin the power cable isthe red conductor.

•The unitis protected from acci-

•dental polarity reversals and no damage will result ifbattery connectionsare wrong. However, the unitwill not work.

MOUNTING

The depthsounder canbe installed in any convenient loca- tion which has a flat surface.

The adjustable yoke permits mounting on either a bottom or overheadsupporting surface. If the unitis to be located in the vicinity ofa compass, run it in position temporarily to make sure it doesnot affect compass readings. Ifcompass heading

•changes, choose an alternate lo- cation. Note: the unitmust be

runningwhenyou makethis test. Holesin the base ofthe bracket allow wood screwor bolt

mounting.

Thread both knobs partiallyinto the mounting bushings on the case. The gimbal brackethas slots in the top of itthat allows

•the unitto "snap" inwithout removingthe gimbal knobs. These slots will clear the threads

	ofthe gimbal knobs, but net the
Fig.21	mounting bushing on the case.

The bracket sides will have to be

spread slighlty to clear the gim- bal bushings, but will returnto their original position when re-

leased. Holesin the gimbal bracket alignwith the gimbal

bushings on the case and will not allow the unitto come ofT

even insevere wave conditions.

lb removethe unit, simply loosenthe gimbal knobs, spread

the bracket sides away from the case, and pull the unitup and out of the bracket.

TRANSDUCER

INSTALLATION

Two different mounting methods are available to install your

EAGLE transducer, either transom mountor shoot-thru-

hull. Although the transom mount will work on most hulls,

we recommendthat the shoot-

thru-hullmethod be used only on solid fiberglass hulls. The transducer signals will penetrate single thicknesses of fiberglass,

but will not go throughporous materialssuch as wood or foam.

The signals also will not pass throughair pockets or voidsin the fiberglass laminations. Re-

gardless ofwhich mounting methodis used, the installation

shouldbe made in an area that

has minimum waterturbulence,

air bubbles, and where the water is the smoothest.

The transducercable should be

routed away from other electri-

cal wiring. Do not cut the transducer cable ifit is too long. In-

stead, coil it and store the excess in an unobtrusive area.'fransducer extension cablesModel

TEC-10 are available that will extend the cable 10 feet. Ifthe

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