User ManualTable of ContentsSection 1: Introduction1Specifications: FishEasy 250 DS & SeaFinder 250 DF1How Sonar Works3Preparations4Section 2: Installation & Accessories7Recommended Tools and Supplies7Selecting a Transducer Location8How low should you go?9Shoot-thru-hull vs. Transom Mounting10Transom Transducer Assembly and Mounting11Trolling Motor Bracket Installation15Transducer Orientation and Fish Arches16Shoot-Thru-Hull Preparation18Shoot-thru-hull Installation21Power and Cable Connections22Mounting The Sonar Unit: In-Dash or Bracket24Portable Installation27Portable Transducer Assembly28Section 2: Operation31Keyboard Basics31Memory32Menus32Display33Full Chart34FasTrack35Depth Range36Zoom37Sensitivity38Grayline40Chart Speed42Frequency43Fish I.D.44FishTrack™46Alarms47Fish Alarm47Depth Alarms47Shallow Alarm48Deep Alarm49Battery Alarm49Noise Rejection and ASP50Depth Display52Temperature Display52Voltage54Units54Backlight54Contrast55Simulator55Set Language56Software Information56Reset Options57Troubleshooting59Size: 2.23 MBPages: 72Language: EnglishOpen manual