4< H I I FISH I.D. AND FISH I.D. PLUS INSTALLATION AND OPERATION INSTRUCTIONS LITHO IN U.S.A. 988-0106-31 PDF compression, OCR, web-optimization with CVISION's PdfCompressor EAGI TABLE OF CONTENTS INTRODUCTION INSTALLATION POWER CONNECTIONS NOISE TRANSDUCER KEYBOARD BASICS OPERATION SENSITIVITY 1 1 1 SECOND ECHO - Another echo that registers at roughly twice the depth ofa targetecho. This is caused by the sound waves reflecting off the bottom, strikingthe surface of the water, travelling to the bottom again, and returning to the surface. SECOND FUNCTION KEY - A buttonthat convertsthe functions of the primarykeys to other functions. SENSITIVITY - The ability of a sonar unit's receiverto displaytargets. Increasingthe sensitivity allows weaker targets to be displayed. Also 3 3 4 7 7 10 10 11 CHARTSPEED RANGE ZOOM DIGITAL FISH I.D. FEATURE AUTO ALARMS called "gain". SCROLL SPEED - See CHARTSPEED. CHARTALARM FISH ALARM SPEAKER LIGHT MODE TRANSDUCERS AND CONE ANGLES SIGNAL INTERPRETATION FISH ARCHES WATERTEMPERATURE AND THERMOCLINES SURVEYING A LAKE BAIT FISH HOWTO OBTAINSERVICE SPECIFICATIONS GLOSSARY 12 13 13 14 15 15 15 16 the hull. SHOOT-ThROUGH-HULL A transducerinstallation which allowsthe sonar signalsto pass through a fiberglasshull withoutcuffing a hole in SUPPRESSION - A method used in some sonar units to help eliminate interference or noise. 20 21 21 SURFACECLARITY CONTROL - Reduces or eliminates undesirable signals displayed near the water's surface. Also called "SCC". 23 24 25 25 26 26 THERMOCLINE A layerof watercaused by the meeting of warmand cool layers of water. The thermocline provides the temperature most fish prefer. TRANSDUCER - The element of a sonar system that converts the electrical energy from the transmitter into ultrasonic sound waves. When a return echo strikes the transducer, it convertsthesound waves into electrical energywhich is received and displayedby the sonar unit. TRANSOM MOUNT - A method of mounting transducers or other sensorson thetransomof theboat. UPPER/LOWERLIMIT - These are the range limits displayed on the sonar screen or paper. The upper limit is shown at the top of the display, while the lower limit is at the bottom. For example, a 20 to 30 foot range has 20 feet as theupper limit and 30 feet as thelower limit. Copyright© 1989, Eagle Electronics All rights reserved. All featuresand specifications subiectto changewithoutnotice. 29 PDF compression, OCR, web-optimization with CVISION's PdfCompressor LCD Liquidcrystal display. The screen or display of a Liquid Crystal Graph sonar instrument. LCG - Liquid Crystal Graph. NOISE Any undesired signal. Electrical noise is caused by engine ignitions systems, radios, etc. Acoustic noise is causedby the vibration of the engine or other mechanical sources. Noise appears on the displayas random dots or lines. OPERATING FREQUENCY- Frequency of a sonar unit's transmitter and receiver. (See kHz.) - - INTRODUCTION Welcome to the world of sportfishing sonar. Your Eagle Fish l.D. and Fish 1.0. Plus are highquality sonar designed for both professional and novice users. These units have an automatic feature that finds and displaysthe bottom depth, fish, and structure. As you becomefamiliar with your Fish 1.0., you can "fine tune" the unit to the surrounding conditionsto get the most from your sonar. (Note: All operatinginstructions forthe Fish l.D. and Fish 1.0. Plus are the same except for speed and temperature. Only the Fish l.D. Plus hasthose functions. To simplifythis manual, all references to the Fish 1.0. will also hold true for the Fish 1.0. Plus. OUTPUTPOWER- The amplitude of electrical energytransmittedfrom the sonar unit to the transducer. Measured in watts, the higher the output power, thedeeper a sonar unit can read, and more detail can be displayed. PIXEL- The small dots or squareson a liquidcrystaldisplay or CAT. PIXEL DENSITY - The number of pixels per square inch on a liquid crystal display. Typically, the greater number of vertical pixels, the betterthe resolution. PULSE LENGTh - The amount of timethat the sonartransmits. This is measured in micro-seconds. The shorter the pulse length, the better theresolution. For example, a30 micro-second pulse lengthis equal to a one inch resolution. RANGE The section of water shown on the sonar display. For example, a 60 foot range has zero for the upper limit and 60 for the lower limit. REMOTE - An intelligent "repeater" unitthat receives depth information from another sonar unit. A remote doesn't have a transmitter or receiver. However,it doeshave it's own featuresthat are adjustable and operate separatelyfrom the master. RESOLUTION - The ability of a sonar unit to separate targets from each other or from the bottom. SCALE - The markings on a sonar unit's display. To determine the depth of a target, simply compare the target'slocation 10 the locationof the scale markers on the display. To get started with your Fish l.D., first read the installation section. This is where it all begins, and improper installation can causeproblems down the road. After you've read these instructions and installed your Fish l.D., read the rest of this manual in detail. The more you know when you get tothe water, the moreyour Fish 1.0. will dofor you. Take this manual for reference when you head for thewater. INSTALLATION Mounting Install the unit in any convenient location, providedthere is clearance when tilted for the bestviewingangle. Holes in thebracketbase allow wood screw or through bolt mounting. Place a pieceof plywood on the back of thin panels to secure the mounting hardware. Make certain there is enough room behind the unit to attach the power and transducercables. You can routethe power and transducer cables through the one inch hole in the baseof thegimbal bracket. Then pass them through a hole in themounting surface. First passthetransducerconnectorand cable up through the hole and gimbal bracket. Then push the power cable wire down throughthe bracket and dash. After routing the cables, fill the hole with silicone rubber adhesive (RTV). Offset the bracket to coverthe majoilty of the hole. Power Connections The Fish l.D. operatesfrom a 12 volt battery system. Attach thepower cable to an accessory or power buss. If you have problems with electrical interference, then attach the cable directly to the battery. 1 28 PDF compression, OCR, web-optimization with CVISION's PdfCompressor the boat's engineor an accessory is on. Electrical interference shows as random dots on the display whenever The power cable has two wires, red is the positive lead and black is negative or ground. Attachthe in-linefuse holderto the red wire on the powercable with thecrimpconnector. The other end ofthefuseholder attaches to the battery or accessory buss. If the cable is not long enough, spliceordinary#18 gauge wire onto it. Be certainthat the fuse holder is as close to the power source (battery or accessory buss) as possible. This protectsthe powercable and your unit in the eventof a short. Use a 3-amp fuse. CONE ANGLE - Angle of the transducers cone of sound. Eagle has transducers available with coneanglesfrom 8 to 45 degrees to suit the varying needs of fishermen. CRT - Abbreviation for Cathode Hay Tube. See Video Graph. DEFINITION- The ability of a sonar unit's display to show detail. A display with high definition can show more detail than one with low definition. These units have reversepolarity protection. No damagewill occur if thepowerwires are reversed. (However, the unitwillnot work until the wires are attachedcorrectly.) DISCRIMINATION - A feature available on Eagle LC.G.'s and paper graphs that separatesfalse echoesfromtruetarget information. The Discrimination feature on Eagle sonar units removes many false signals from other sonars, acoustic and electrical sources, and more. FISH ALARM- Analarm that activates when a fish or suspended object is detected. FISK ARCH A sonar with good resolution and definition can display suspended targets as upside down "Vees" or arches. These signals are typicallyfish, hence the name "Fish Arch". See page 20 for more information. - FROM SPEED/TEMP SENSOR r FISH l.D. PLUS FUSE HOLDER FLUSH MOUNT A transducer that is installedwith the bottom of the transducerflush with the bottom of the hull. GIMBAL BRACKET - A bracket used to install a sonar unit permanently. The sonar unit can rotate in the bracket for the best viewing angle. - 12VOLT BATrERY FISK LD. FUSE GRAYLINE This feature shows the relative strength of signals displayed on the screen. Signals weaker than theGRAYLINE setting are displayed in black, stronger targets are gray. It also givesclues to the compositionof the bottom. In other words, you can tell if the bottom is soft or hard. A hard bottomreturns a strong signalcausinga wide gray line. A soft, muddy or weedy bottom returns a weaker signal which is emphasized with a narrowgray line. IN-DASH - A sonar unit installed through a hole in the boat's dash. Usually,theface of thesonar is flush or nearlyso with the dash. 12 VOLT BAIlERY kHz- Kilohertz. A measurement of frequency. Your Eagle sonar operates at 192 Kilohertz. (192,000 cycles per second). 27 PDF compression, OCR, web-optimization with CVISION's PdfCompressor 2 SPEED/TEMPERATIJ RE SENSORINSTALLATION SPECIFICATIONS Dimensions Weight Transmitter frequency Output Power (typical) Receiver Sensitivity Operating Current Operating Voltage 5 7/8"H x 7 3/4"W x 3 7/16"D 1 3/4 pounds 192 kHz 275 watts peakto peak 34.4 watts RMS 82 db temperature stabilized 200 ma (lights off) 500 ma (lightson) 9-15 vdc 50 x 27 (verticalx horizontal) 1350 Total Mountthespeed/temp sensor on theboat'stransomin a locationwhere the flow of water is smoothest. There should be a minimum amountof turbulenceand air bubbles in the chosen location. The port (left) side of thetransomis preferred, however thestarboard(right) side can be used if necessary. Do not mount the speed sensor behind strakes, ribs, or thru-hullfittingsthat will disturb the flow of waterto thespeed sensor. In a typical installation, the speed sensor is mountedsix to twelve inches from the centerline of the boat. The sensormust be in thewater at all times to function properly. Make certain the chosen location is in the water evenat high speed or when the boat is on plane. Oncethe proper location has been determined, placethe sensoron the transom with the bottom of thesensor flush with thebottom ofthe hull. Mark thetransomin thecenter of each slot and drill a 5/32" mounting hole. Mount the sensor to the hull with the screws provided with the sensor. Use a good grade of caulking compoundto seal the screws. Adjust the senor so it is flush with the undersideof the hull and tighten Fish l.D. Plus Only Numberof pixels Display Scroll Speed Maximum Chart Range Maximum Digital Range .5" per minute (minimum) 32" per minute (maximum) 180 feet 400 feet the screws. GLOSSARY ANCHOR WATCH - A setting of the sonar unit's alarm. The alarm activates when the boat drifts into shalloweror deeperwater than the alarm set points. Ifthe baseofthetransom hasa radius,fill thegép betweenthetransom and the sensorwith caulking compound to insurea smoothwater flow. Route the sensor cable to the in-line connector on the sonar unit's power cable and attach it. BACK-LIGHTED A displayor keyboardilluminated from behind by a light. Back-lighted displays are essential when night fishing or navigating. CAVITATION - Air bubbles created by the high speed movement boat or transducer through water. of a SECURELY A1TACH GOOD SPEEDITEMP SENSOR LOCATION CHART SPEED - (1) The speed pf the chart paper on a paper graph recorder. (2) The speed of an image across the screen of a liquid crystalgraph. (Also called "scroll speed"). CABLE ToTRANSOM 3 26 PDF compression, OCR, web-optimization with CVISION's PdfCompressor BAIT FISH The importance of bait fish to successful fishina can't be over-emohasized. They are the principalfood of all game fish in mostwaters. Bait fish are the plankton feeding forage fish, such as minnows and shad. Bait fish can also be the young of game fish, such as crappies, bluegill, and bass. Most bali fish concentratewithin five feet of thesurface where sunlight promotesthegrowth of the plankton on which theyfeed. One method of fishing is to usethe unitto find the baitfish first. A school of baitfish will look like a "cloud" on the unit's display. Usually, game fish will be nearby,often directlybeneaththe school of baitfish. KEYBOARDBASICS This section gives a brief explanation of the keyboard. Read the Operationsectionfor a detailed description of each key's operation. HOWTO OBTAIN SERVICE If you havea problemwith your sonar unit, please give us a chance to ON OFF Fa.--] These L I keys turnthe unit's poweron and off. To turn it on, simply pressthe ON key. To turn it off, press the OFF key, help beforesending it in for repair. 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