User ManualTable of ContentsHow the 900 Series™ Works1Powering Up the Control Head23Side Imaging Sonar1What’s on the Sonar Display24DualBeam PLUS™ Sonar1Understanding Sonar History25GPS and Cartography (987c SI Combo models only)2Real Time Sonar (RTS®) Window25Multi-Media Card (MMC)/SD Slot2Sonar Bottom Presentation25Accessory Bus33 What’s on the Side Imaging Display274 Side Imaging Technology: How It Works28Side Imaging: On the Water Interpretation28Gimbal Mounting the Control Head5In-Dash Mounting the Control Head8Connecting the Control Head Power Cable to the Boat10POWER/LIGHT Key3111 VIEW Key31MENU Key31Transom Transducer Installation124-WAY Cursor Control Key32Trolling Motor Transducer Installation16View Preset Keys32Test and Finish the Transducer Installation17EXIT Key3218 INFO Key (987c SI Combo models only)32Stem Mounting with an Existing 1" - 14 Thread Stem18MARK/GOTO Key (987c SI Combo models only)33Access Under Mounting Location19ZOOM (+/- Key) (987c SI Combo models only)33No Access Under Mounting Location19Finish Routing the Cable and Check GPS Receiver Operation20Views and Readouts3420 Sonar View3422 Sonar Zoom View35Split Sonar View36Side Imaging View36Side/Sonar Combo View37Bird’s Eye View (987c SI Combo models only)38Chart/Bird’s Eye Combo View (987c SI Combo models only)38Lower Range52Chart View (987c SI Combo models only)39Chart Speed52Chart/Sonar Combo View (987c SI Combo models only)39Zoom Level (Sonar Zoom View, 981c SI models only)52Chart/Side Combo View (987c SI Combo models only)40Bottom Lock (Sonar Zoom View only)53Chart Orientation (987c SI Combo models only)40Bottom Range (Sonar Zoom View only, when Bottom Lock is On)5340 Sonar Colors53Active Side54Waypoints, Routes and Tracks42Split Position54Save, Edit, or Delete a Waypoint42SI Side55Navigate to a Waypoint or Position43SI Sensitivity55Add a Waypoint Target or Trolling Grid44SI Range55Save, Edit or Delete a Route45Chart Speed55Save or Clear a Current Track45SI Colors56Edit, Delete or Hide Saved Tracks45Active Side5747 Split Position57Normal Operation48Save Current Track57Simulator48Clear Current Track57System Status48Save Current Route (Only When Navigating)58Self Test48Skip Next Waypoint (Only When Navigating)58Accessory Test49Cancel Navigation (Only When Navigating)58GPS Diagnostic View (987c SI Combo models only)49Remove Target (Only If a Target is Active)5850 Remove Grid (Only If a Grid is Active)59Active Side50Split Position50Beam Select60Sensitivity51Side View Frequency60Upper Range (Advanced, Sonar, Split Sonar and Active Sonar Side Views only)51Fish ID+™60Fish ID Sensitivity61Spot Soundings70Real Time Sonar (RTS®) Window61Shaded Depth70Bottom View62Set Simulation Position (Advanced)70Zoom Width (Sonar Zoom View only)62Set Map Offset (Advanced)7150 kHz Sensitivity (Advanced)63Clear Map Offset (Advanced)71Depth Lines (Advanced)63Surface Clutter (Advanced)63Depth Alarm72Noise Filter (Advanced)63Fish ID Alarm72Max Depth (Advanced)64Low Battery Alarm72Water Type (Advanced)64Temp Alarm72Color Bar64Off Course Alarm (987c SI Combo models only)73Temperature Graph (Sonar View only, with Temperature input)65Arrival Alarm (987c SI Combo models only)7365 Drift Alarm (987c SI Combo models only)73Tracks66Alarm Tone74Waypoints66Routes66Units - Depth75Chart Orientation67Units - Temp (International only)75North Reference67Units - Distance (With Speed Input only)75Trolling Grid Rotation67Units - Speed (With Speed Input only)75Trackpoint Interval67User Mode76Track Min Distance (Advanced)68Language (International only)76Map Datum (Advanced)68Triplog Reset (With Speed Input only)76Export All Nav Data (Advanced)68Restore Defaults76Delete All Nav Data (Advanced)68Select Readouts (Advanced)7769 Depth Offset (Advanced)78Chart Detail Level69Temp Offset (Advanced)78Map Borders69Speed Calibration (Advanced, with Speed Paddlewheel only)79Lat/Lon Grid70Local Time Zone (Advanced, 987c SI Combo models only)79Daylight Saving Time (Advanced, 987c SI Combo models only)79Position Format (Advanced, 987c SI Combo models only)79Time Format (Advanced, 987c SI Combo models only, International only)80Date Format (Advanced, 987c SI Combo models only, International only)80NMEA Output (Advanced)80Sonar (987c SI Combo models only)81900 Series™ Doesn’t Power Up82900 Series™ Defaults to Simulator with a Transducer Attached82Display Problems83Finding the Cause of Noise84Size: 8.15 MBPages: 95Language: EnglishOpen manual