Lowrance electronic Fish Finder manual Sonar Operations

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Full sonar chart (left) and Split Zoom Chart (right).

Digital Data page (left) with Flasher page (center) and Pro Tips page

(right).

Sonar Operations

Sensitivity controls the unit's ability to pick up echoes. If you want to see more detail, try increasing the sensitivity. There are situations when too much clutter appears on the screen. Decreasing the sensitiv- ity can reduce the clutter and show the strongest fish echoes, if fish are present.

You can change the sensitivity level whether you are in Auto Sensitiv- ity mode or Manual Sensitivity mode.

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Contents M52 Pro Visit our web site Table of Contents Split Zoom Sonar Chart Index Page Sonar GeneralBack-up memory Sonar soundingGPS How to use this manual typographical conventionsGraphic symbols for Waypoints or event Receiver/antennaTransducer Installation PreparationsRecommended Tools and supplies Selecting a Transducer LocationHow low should you go? Shoot-thru-hull vs. Transom Mounting Transom Transducer Assembly and Mounting Insert bolt and check transducer position on transom Transom Trolling Motor Bracket Installation Transducer Orientation and Fish Arches SHOOT-THRU-HULL Preparation Testing Determines Best LocationHulls With Floatation Materials Transducer location High speed Trolling speed Shoot-thru-hull Installation Power and Cable Connections Page In-Dash Installation Mounting the Sonar Unit In-Dash or BracketBracket Installation 107.5 82.7 156 Depress ratchets to Release. Swivel base Portable Sonar Installation Installing the BatteriesPortable transducer installed on boat transom Section Basic Sonar Operation KeyboardMain Menu Sonar Menu Commands Sonar MenuBasic Sonar Quick Reference Pages Sonar Operations Fish Symbols vs. Full Sonar Chart Important TipPage Alarms ASP Advanced Signal ProcessingZone Alarm Press MENUMENU↓ to ALARMSENT↓ to Sonar AlarmsentFish Alarm Chart Speed Depth CursorDepth Range Automatic Depth Range ManualDepth Range Upper and Lower Limits Fish I.D. Fish Symbols & Depths FasTrackFishTrack Grayline→Overlay Data Ping Speed & HyperScroll Sensitivity & Auto Sensitivity Reset OptionsAutomatic Sensitivity Keel and Waterline Offset Keel OffsetFull Sonar Chart Sonar Color ModeSonar Chart Display Options Waterline OffsetDigital Data/Chart Split Zoom Sonar ChartSonar Simulator Pro TipsFlasher Zoom & Zoom Bar Stop ChartSurface Clarity Zoom PanUnit wont turn on Unit operates only in demo modeUnit freezes, locks up, or operates erratically No fish arches when the Fish I.D. feature is off NoiseSection Basic GPS Operations Main MenuSonar Pages Satellite StatusNavigation Page Position PlotterViewing the Plotter Zoom & Cursor Arrow Keys Selecting Any Plotter Item With the Cursor Navigate to Cursor Position on PlotterGPS Quick Reference Waypoints Cancel NavigationFind Distance between Points Create a WaypointPress WPT↓ to Create Newent Delete a Waypoint Edit a Waypoint Find a WaypointSelect a Waypoint Navigate To a Waypoint Set Man Overboard MOB Waypoint Trails Navigate Back to MOB WaypointCreating and Saving a Trail Tip Display a Saved Trail Delete a TrailEdit a Trail Name Visual Trailing Navigate a TrailNavigate a Trail forward Page Navigate a Back Trail Create Icon at Current Position IconsCreate Icon on Plotter Delete an IconNavigate to an Icon RoutesCreate and Save a Route Page Delete a Route Edit a Route NameNavigate a Route Navigate a Route backward Utilities Page Section System & GPS Setup Options Important Alarm Notes Auto Satellite SearchCoordinate System Selection Map Fix Customize Position Customize Page DisplaysGPS Simulator Customize Plotter or NavigationInitialize GPS Hide GPS FeaturesPlotter Auto Zoom Plotter Orientation From the Plotter or Sonar page, press MENU↓ Position Pinning Pop-up HelpScreen Contrast and Brightness Set Language Show Waas AlarmSet Local Time Sounds and Alarm Sound Styles Software Version InformationTrail Options Track SmoothingDelete All Trails Main Menu, left, Trails Menu, center, Trail Options, right New Trail Units of MeasureDelete Trail Trail Visible/Invisible and Other Trail OptionsMain Menu, left, Units of Measure Menu, right Index Page Page 100 Navico Databases License Agreement Databases Limited Warranty Navico Full ONE-YEAR Warranty How to Obtain Service… Not toll-freeAccessory Ordering Information for all countries Visit our web site