User ManualTable of ContentsIntroduction1Capabilities and Specifications: X51 and X58DF1Installation2Transducer Installation2Recommended Tools and Supplies3Selecting a Transducer Location3Shoot-Thru-Hull vs. Transom Mounting5Transom Transducer Assembly and Mounting5Trolling Motor Installation (Single-Frequency only)11Shoot-Thru-Hull Preparation and Installation12Speed/Temperature Sensors15Speed Sensor Installation17Power Connections18Mounting the Sonar Unit: In-Dash, Bracket or Portable19In-Dash Installation19Bracket Installation20Portable Sonar Installation21Operation and Features23Keyboard Basics23Turn On and Off23Menus24Display – Opening Screen25Chart Scroll (Stopping and Starting)25Screen Display Modes or Pages26Full Chart26Split Chart27Dual-Frequency Split Chart (X58DF only)28Lrg Digital (Large Digital)29Flasher29Range30Range - Upper and Lower Limits30Zoom31Sensitivity33Grayline35Fish I.D.36FishTrack37FishReveal38Chart Scroll Speed and HyperScroll39Noise Reject and ASP (Advanced Signal Processing)40Alarms41Fish Alarm41Shallow and Deep Alarms42System Setup44Backlights44Display Contrast44Depth Units of Measure45Temperature Units of Measure46Speed and Distance Log Units of Measure46Reset Distance Log47Preset Unit (Reset All Options)47System Info48Simulator48Chart Setup49Limit Search49Temperature, Speed, and Distance Log51Scales52Chart Mode (see FishReveal)38Troubleshooting53Warranty and Service Information57Size: 3.39 MBPages: 64Language: EnglishOpen manual