Eagle Electronics 500CDF manual Sonar Operations

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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.

9.If you are drifting at a very low speed or anchored, you are not mov- ing fast enough for a fish to return the tell-tale fish arch signal. As you drift over a fish, or as a fish swims through the transducer's signal cone, the fish echo will appear as a straight line suspended between the surface and the bottom.

10.To turn off the unit, press and hold PWR key for three seconds.

Sonar Operations

As you can see from the quick reference on the previous page, basic operation is pretty easy, right out of the box. If you are a sonar novice, try operating the unit with the factory defaults until you get a feel for how it's working.

As you're learning the basics, there is one setting you might want to tinker with from time to time — Sensitivity.

Sensitivity controls the unit's ability to pick up echoes. If you want to see more detail, try increasing the sensitivity, a little at a time. There are situa- tions when too much clutter appears on the screen. Decreasing the sensitivity can reduce the clutter and show the strongest fish echoes, if fish are present. As you change the sensitivity setting, you can see the difference on the chart as it scrolls.

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Contents Installation and Operation Instructions Page Table of Contents ColorLine level To turn Auto Sensitivity back on Page Read Me First How this manual can get you out on the water, fastPage Figuration and installation, bottom composi How Sonar Works How to Use this Manual Typographical Conventions Page Transducer Installation PreparationsSingle-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 Basic Sonar Operation KeyboardPower/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 Sonar Options & Other Features ASP Advanced Signal ProcessingAlarms 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 Contrast Depth CursorDepth Range Automatic Depth Range ManualFasTrack Fish I.D. Fish Symbols & Depths FishTrack Symbols with FishTrack depths Frequency Change Transducer Frequency SeaFinder CDF onlySonar Features menu with a frequency of 200 kHz selected Noise Rejection HyperScrollOverlay Data Page To return to the previous page, press Exit Ping Speed & HyperScroll TipPage Pop-up Help Reset Options Screen Contrast and Backlight Level Reset Water DistanceSet Keel Offset Press MENUMENU↓ to SET Keel Offsetent Sensitivity & Auto Sensitivity Page Set Language Software Version InformationSonar Chart Mode Sonar Page & Sonar Chart Display OptionsPage Page Customizing the Digital Data/Chart Screen Sonar Simulator Stop Chart Surface Clarity Press ↓ or ↑ to select clarity levelEXITEXIT Transparency Units of MeasureVolume Zoom & Zoom BarZoom 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