Eagle Electronics 500CDF 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.

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Contents Installation and Operation Instructions Page Table of Contents ColorLine level To turn Auto Sensitivity back on Page How this manual can get you out on the water, fast Read Me FirstPage Figuration and installation, bottom composi How Sonar Works How to Use this Manual Typographical Conventions Page Preparations Transducer InstallationSingle-frequency transom installations Pad Deadrise less than Strakes Good and poor transducer locations Transom Page Dot Alignment letters Positions Transducer Ratchets Bolt Transom Bottom Hull Flat-bottom hull Deep-vee hull Internal tooth washer TMB-S bracket Bolt Nut Flat washer Transducer mounted on trolling motor, side view Partial fish arches Hulls With Flotation Materials Transducer location High speed Trolling speed Page Epoxy transducer to hull Speed/Temperature Sensors Optional Speed Sensor Installation Good location Power Connections Power connections for the sonar unit Page Front 72.9 173.9 23.4 157.9 Millimeter 56.9 Inch In-Dash Template Face Cover Page Keyboard Basic Sonar OperationPower/lights on and off Main Menu Pages Pages Menu, showing Sonar display options Page Page Sonar Page, showing full sonar chart mode Basic Sonar Quick Reference Sonar Operations Page Page Important Tip Page Page Page ASP Advanced Signal Processing Sonar Options & Other FeaturesAlarms To adjust and turn on the shallow alarm To turn off the alarm, press ALARM↓ to Deep Alarm Enabledentexit Backlight Level Calibrate Speed Chart Speed ColorLine Thin or no ColorLine Wider ColorLine Depth Cursor ContrastDepth Range Manual Depth Range AutomaticFasTrack Fish I.D. Fish Symbols & Depths FishTrack Frequency Change Transducer Frequency SeaFinder CDF only Symbols with FishTrack depthsSonar Features menu with a frequency of 200 kHz selected HyperScroll Noise RejectionOverlay Data Page To return to the previous page, press Exit Tip Ping Speed & HyperScrollPage Pop-up Help Reset Options Reset Water Distance Screen Contrast and Backlight LevelSet Keel Offset Press MENUMENU↓ to SET Keel Offsetent Sensitivity & Auto Sensitivity Page Software Version Information Set LanguageSonar Page & Sonar Chart Display Options Sonar Chart ModePage Page Customizing the Digital Data/Chart Screen Sonar Simulator Stop Chart Surface Clarity Press ↓ or ↑ to select clarity levelEXITEXIT Units of Measure TransparencyZoom & Zoom Bar VolumeZoom Pan Troubleshooting Page Page Page Supplemental Material FCC Compliance Page Index Page Page 102 103 How to Obtain Service… Accessory Ordering Information for all countries Visit our web site