Eagle Electronics 320, 320DF manual No fish arches when the Fish I.D. feature is off

Page 96

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 sonar display will flash continuously. It may change the range to limits far greater than the water you are in. If this happens, place the unit in the manual mode, then change the range to a realistic one, (for example, 0-100 feet) and increase the sensitivity. As you move into shallower water, a bottom signal 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 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 I.D. feature is off:

1.Make certain the transducer is pointing straight down. This is the most common problem if a partial arch is displayed.

2.The sensitivity may not be high enough. In order for the unit to display a fish arch, it has to be able to receive the fish's echo from the time it enters the cone until it leaves. If the sensitivity is not high enough, the unit shows 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 will have much better luck seeing fish arches with a 30 to 60 foot range than a 0 to 60 foot range. This enlarges the targets, allowing the display to show 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 screen as straight horizontal lines.

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Contents FishElite 320 and SeaCharter 320DF Page Table of Contents Fish I.D. Fish Symbols & Depths Sonar Troubleshooting Basic GPS OperationsBackground Map vs. Mapcreate Map Content Frequency Change Trans Frequency 320DF only107 109115 Transfer Custom Maps and GPS Data Files 118Configure Nmea 320DF only 139 136138 141Searching 165 176Supplemental Material 179 Page Read Me First How this manual can get you out on the road, fastPage General Tion and water conditions. All sonar units Typically read deeper in fresh water thanSalt water How Eagle Sonar Works Arrival/off-course/anchorHow Eagle GPS Works Page Introduction to GPS and Waas Page How to use this manual typographical conventions Page Page Transducer Installation PreparationsSingle-frequency transom installations Dual-frequency transom installationsSingle-frequency trolling motor installations Shoot-through hull installationsGood location Poor location Location Poor angle Transom Transducer centerline Hull bottomTransom Transducer Assembly and Mounting Dot Alignment lettersTransducer bracket Transducer RatchetRatchets Bolt Flat washer NutMetal Nut washer Rubber WashersTransom Bottom HullFlat-bottom hull Deep-vee hull Internal tooth washer TMB-S bracket Bolt Nut Flat washer Partial fish arches Transducer aimedSHOOT-THRU-HULL Preparation Transducer location High speed Trolling speed Spread epoxy here Sand this surfaceSpeed/Temperature Sensors SeaCharter 320DF Sensor Chart MY-4X adapter includedFishElite 320 Sensor Chart FishElite 320 rear view TS-2U temperature sensorCable Built into transducerGood location Transom Bottom of hullGPS Antenna/Receiver Module Power Connections NMEA/DGPS Cable Connections SeaCharter 320DF only NMEA/DGPS Wiring SeaCharter 320DF only Yellow Transmit Receive Com-1 to Orange ReceiveShield Ground To Dgps Receiver GPS socket SeaCharter 320DF, rear view Sonar socket Com portThree GPS antenna ModuleMounting the Unit Bracket, In-Dash or Portable Front173.9 72.9 23.4 137.9 Millimeter 56.9 Inch 146.5 113.5Millimeters Inches MMC or SDC Memory Card Installation Cell batteryOther Accessories Thumb Screw Insert card face up This wayPage Basic Sonar Operation KeyboardPower/lights on and off Main MenuMain Menu Pages Navigation Page, recording a trail, traveling southwest Page Page Digital data Surface signal Basic Sonar Quick Reference Sonar Operations Page To Restore Factory Settings Important TipPage Page Sonar Options & Other Features To change the ASP levelAlarms To adjust and turn on the shallow alarmPress ← to Shallow Alarm Enabledentexitexitexit Zone Alarm To adjust and turn on the deep alarmPress ← to Deep Alarm Enabledentexitexitexit To adjust and turn on the zone alarmTo turn the fish alarm on Press ↓ to Fish AlarmentexitexitexitSonar ALARMSENT↓ to Fish Alarmentexitexitexit Calibrate SpeedChart Speed Depth Cursor Depth Range AutomaticDepth box To switch to Manual Depth Range Depth Range ManualFasTrack To turn Auto Depth Range on againFish I.D. Fish Symbols & Depths Page To turn the Fish I.D. feature on Symbols with FishTrack depthsFishTrack FishRevealTo turn FishReveal on Fish Not Visible Fishfish arch Fish archesFrequency Change Transducer Frequency SeaCharter 320DF only To change the frequency setting to 50 kHz To change the frequency setting to 200 kHzTo adjust the Grayline level GraylineHard Fish near Grayline Hard Bottom Muddy bottom Muddy Hard Bottom bottomLog Sonar Chart Data To record or log chart dataHyperScroll Noise RejectionOverlay Data To select data for displayTo turn off displayed data To change displayed data font size Steering arrowPing Speed & HyperScroll To change Ping SpeedReset Options To turn off HyperScrollReset Water Distance Set Keel OffsetPress MENUMENU↓ to SET Keel Offsetent Sensitivity & Auto Sensitivity Automatic SensitivityTo adjust sensitivity in auto mode To adjust sensitivity in manual modeTo turn Auto Sensitivity back on Sonar Color Mode Sonar Page & Sonar Chart Display OptionsTo change the chart mode color scheme Split Zoom Sonar Chart Split Frequency Sonar Chart SeaCharter 320DF only Customizing the Digital Data/Chart Screen Tip Title bar with chart file name Play symbol flashing Sonar SimulatorPress MENUMENU↓ to Browse MMC Filesentent Stop Chart Surface ClarityZoom & Zoom Bar Surface clutterZoom & Zoom Bar Unit operates only in demo mode Unit wont turn onUnit freezes, locks up, or operates erratically No fish arches when the Fish I.D. feature is off Noise Page Section Basic GPS Operations Power/lights on and off Main Menu Pages Menu, showing some Map display options Page Displays PositionTrail line Page Page Page Interstate Major Street Cursor line Minor Streets POI Pop-up Marker School POI RestaurantPosition Zoom Rangedistance and bearing data Tip 102 Basic GPS Quick Reference Find Your Current Position Moving Around the Map Zoom & Cursor Arrow KeysSelecting Any Map Item With the Cursor SearchingPOI pop-up 106 Set a Waypoint Create Waypoint at Current Position StepNavigate To a Waypoint Press WPT→ to Subcategory column↓ to NewentCreate Waypoint on Map Create Waypoint by Entering a PositionSet Man Overboard MOB Waypoint Navigate Back to MOB WaypointWaypoint Navigate to Cursor Position on Map 112 Navigate to a Point of Interest Creating and Saving a TrailVisible symbol Active Symbol Displaying a Saved Trail Navigating Trails116 North TrailDotted line Trail pointTransfer Custom Maps and GPS Data Files GPS Data files Cancel Navigation Loading to unit memory There may be more than one GPS DataFind Distance From Current Position To Another Location Find Distance From Point to PointIcons Create Icon on MapRoutes Press MENU↓ to Delete MY IconsentCreate and Save a Route PC-created RoutesRoutes Created in the Unit Page Page Delete a Route Edit a RouteVERSEENT← to Navigateent Trails Delete a TrailUtilities Alarm Clock WaypointsDelete a Waypoint Edit a WaypointWaypoint Position Press ↓ to Projected POSITIONENT→ to Createent 134 Section System & GPS Setup Options Important Alarm Notes Auto Satellite SearchCommunications Port Configuration SeaCharter 320DF only Check MMC Files and Storage SpaceTo check MMC Files Press MENUMENU↓ to Browse MMC FilesentConfigure Dgps Configure Nmea Press MENUMENU↓ to GPS SetupentCoordinate System Selection To setup Loran TD To configure a map fix Map FixCustomize Page Displays Dgps StatusGPS Simulator To get to the GPS Simulator Simulating Trail or Route NavigationHide GPS Features Press MENUMENU↓ to GPS SetupententInitialize GPS Map Auto Zoom Map DataShow Map Data Map Datum Selection Map Detail Category Selection Map Orientation Track Up mode, map shows N and arrow to indicate northNavionics Charts To display a Navionics chartTo view Port Services information Port Services icons Pop-up name box Cursor linesPort Information Tidal Current Information To view Tidal Current informationPage Tide Information To view tide informationCursor line Pop-up name box Tide Station icon Pop-up Help Position Pinning Require Dgps SeaCharter 320DF only Press MENUMENU↓ to GPS SETUPENT↓ to Require DgpsentScreen Contrast and Brightness Set Language Show Waas Alarm Press MENUMENU↓ to GPS SETUPENT↓ to Show Waas AlarmSet Local Time Sounds and Alarm Sound Styles Software Version InformationTrack Smoothing Trail OptionsGeneral Trail Options Update Trail Option Delete All TrailsFlash Trails on Screen Option Delete Trail New TrailTrail Visible/Invisible and Other Trail Options Specific Trail OptionsUnits of Measure 164 Searching Find AddressesFind Address Menu Page Find Any Item Selected by Map Cursor Find Interstate Highway Exits Service NameENT Find Map Places or Points of Interest POI Find Streets or Intersections Find a StreetFind Streets command, left, Find Streets menu, right Find an Intersection ENTENT Find Waypoints Page Page Supplemental Material Datums Used by This Unit 180 181 182 FCC Compliance Sensor installation Temperature sensor optional185 186 Eagle Databases License Agreement Databases Limited Warranty Eagle Electronics Full ONE-YEAR Warranty How to Obtain Service… Not toll-freeAccessory Ordering Information for all countries Visit our web site
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320, 320DF, 320 specifications

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