Eagle Electronics 320 manual Basic Sonar Quick Reference

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Basic Sonar Quick Reference

1.Mount the transducer and unit. Connect the unit to electric power and the transducer.

2.Launch your boat.

3.To turn on the unit, press and release PWR key.

4.Head for your fishing grounds. Your unit automatically displays digi- tal depth and surface water temperature in the corner of the screen.

The auto settings will track the bottom, displaying it in the lower por- tion of the screen. The full sonar chart will scroll from right to left, showing you what's under the boat as you cruise across the water.

5. As you're watching the sonar returns, you can change the display by:

Zoom in to enlarge the chart for more detail: press ZIN.

Zoom out to return to full chart mode: press ZOUT.

6.If necessary, adjust sensitivity to improve chart readability. Press

MENUENT and the Sensitivity Menu will appear on the left of your screen. Use and to change the setting.

Boosting sensitivity will show more information on your screen, which may cause clutter. Reducing sensitivity will filter out some information, but could omit important images. We recommend adjusting sensitivity until the background is lightly "peppered" — that is, scattered dots ap- pear, but individual objects (like fish arches or bottom structure) can be easily picked out of the background.

7.Watch the display for the appearance of fish arches. When you see arches, you've found fish! Stop the boat and get your lure or bait into the water at the depth indicated on the sonar chart.

8.Gauge the fish depth by visually comparing the fish arches with the

depth scale on the right side of the screen, or get a more accurate measure with the Depth Cursor. Press MENUto DEPTH CURSORENT. Press (or ) to align the cursor line with the fish arch. The exact depth appears in a box at the right end of the cursor line. To clear the cursor, press EXIT.

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Contents FishMark 320 SeaFinder 320DF Page Table of Contents Fish I.D. Fish Symbols & Depths How this manual can get you out on the water, fast Read Me FirstGeneral Figuration and installation, bottom composi How Sonar Works How to use this manual typographical conventionsPage Page Preparations Transducer InstallationShoot-through hull installations Single-frequency transom installationsDual-frequency transom installations Single-frequency trolling motor installationsGood and poor transducer locations Transom Transducer centerline Hull bottom Dot Transom Transducer Assembly and MountingTransducer Alignment lettersAlignment PositionsRatchets Bolt Bolt Flat washer Lock washer NutMetal Nut Washer Rubber WashersTransom Hull BottomFlat-bottom hull Deep-vee hull Internal tooth washer TMB-S bracket Bolt Nut Flat washer Full fish arch Proper transducer angle Partial fish archesTransducer aimed Too far backSHOOT-THRU-HULL Preparation Transducer location High speed Trolling speed Spread epoxy here Sand this surface Speed/Temperature SensorsRear view Sonar unitGood location Transom Bottom of hull Power ConnectionsOptional power off switch for Ducer socket Sonar unit Rear view Power/transPower c able Accessory Transducer Cable Mounting the Unit Bracket, In-Dash or PortableFront 173.9 23.4 137.9 157.9 Millimeter 56.9 Inch 72.9113.5 Millimeters Inches 146.5Face Cover Cell batteryKeyboard Basic Sonar OperationPower/lights on and off Menus Main Menu Commands Sonar Menu Commands Pages Sonar Page, showing full sonar chart mode. bar graph Page Basic Sonar Quick Reference Sonar Operations Page Important Tip To Restore Factory SettingsPage Page Sonar Options & Other Features Alarms To adjust and turn on the deep alarm To adjust and turn on the shallow alarmTo adjust and turn on the zone alarm Brightness To turn the fish alarm onCalibrate Speed Chart SpeedDepth Cursor ContrastDepth box Depth Range Automatic To switch to Manual Depth RangeDepth Range Manual Bar graph Fish I.D. Fish Symbols & DepthsFasTrack To turn Auto Depth Range on againPage Page Press → ↓ to Fish ID Depthsentexitexit Symbols with FishTrack depthsFishTrack FishRevealPage Fish Not Visible Fish arch Fish arches Frequency Change Transducer Frequency SeaFinder 320DF onlyGrayline Grayline Hard Bottom Muddy bottom Hard Fish nearHard Muddy bottom bottom Grayline HyperScrollNoise Rejection Overlay DataTo change displayed data font size To turn off displayed dataPing Speed & HyperScroll Page Pop-up Help Reset OptionsScreen Contrast and Brightness Reset Water DistanceSensitivity & Auto Sensitivity Page Set Keel Offset Press MENUMENU↓ to SET Keel Offsetent Software Version Information Set LanguagePress MENUMENU↓ to Software Infoent Sonar Chart Display Options Sonar Color ModePage Page Customizing the Digital Data/Chart Screen Sonar Simulator Stop ChartPress ↓ or ↑ to select clarity levelEXITEXITEXIT Surface ClarityZoom & Zoom Bar Units of MeasureZoom Pan Page Troubleshooting Page Noise Page Page Page Supplemental Material How to Obtain Service… Accessory Ordering Information for all countries Visit our web site
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320 specifications

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