0 GPSMAP 5000 Series Owner’s ManualConfiguring the UnitConfiGUrinGthe UnitEnter a (+) positive numberto show depth from thebottom of the keel.Transducer at SurfaceEnter a (-) negativenumber to show depthfrom the surface.Transducer at Bottom of KeelKeel Offsettransducer—selects sonar cone angles and calibrates water speed.Sonar Cone Angles—when using a transducer other than the standard Garmin transducer, youcan set the angle, in degrees, of the sonar cone so that it is accurately depicted on the Fish Eye 3Dscreen. Touch either 200kHz or 50kHz and use the touch screen keyboard to enter the angle.Note: The Sonar Cone Angles setting does not affect a standard Garmin transducer, and should onlybe used to match the specifications of a non-standard transducer.Calibrate Water Speed—calibrates a speed-sensing device. Follow the onscreen directions forcalibration. If you do not have a speed-sensing transducer, this menu does not appear.Note: If the boat is not moving fast enough or the speed sensor is not registering a speed, a “Speedtoo Low” message appears. Touch oK and safely increase boat speed. If you get the message again,stop the boat and make sure the speed-sensor wheel is not stuck. If the wheel turns freely, check thecable connections. If you continue to get the message, contact Garmin Product Support.Configuring Other BoatsTo configure settings for boats other than your own from the Home screen, touch Configure >other Boats.AIS—turn AIS (Automatic Identification System) on or off. AIS alerts you to area traffic byproviding boat IDs, position, course, and speed for boats that are within range and equipped with atransponder.DSC—turn DSC (Digital Selective Calling) on or off.Note: To configure AIS or DSC information for other boats, your unit must be connected to anexternal AIS or DSC device.Safe Zone (AIS and MARPA only)—turn a safe zone around your boat on or off. This is used forcollision avoidance and can be customized.••