Garmin GPSMAP 640 Owner's Manual - Page 52

Marine Mode: Advanced Configuration • Style-(Mariner's Eye 3D only) select how chart data is displayed over 3D terrain. • Hazard Colors-(Mariner's Eye 3D only) turn hazard colors on or off. ◦ On setting indicates shallow water and land with a color scale. Blue indicates deep water, yellow is shallow water, and red is very shallow water. ◦ Off setting shows the land as seen from the water. • Range Rings-toggle the range rings on or off. • Safe Depth-(Mariner's Eye 3D only) adjust the depth at which red indicates shallow water. • Lane Width-adjust the width of the course line drawn when navigating. This setting affects direct navigation (Go To) and routes (Route To), but does not affect automatic guidance (Guide To). Fish Eye 3D Settings From the Fish Eye 3D screen, touch Menu. View-change the viewpoint. Choose the direction you want the camera to point. For example, if you touch Port, the view places the camera to starboard, looking across the boat to port. Tracks-toggle tracks on or off. Data Bars-control how charting numbers appear on the screen, as on the Navigation chart. See page 40. Fishing Chart Settings From the Fishing chart, touch Menu. Waypoint and Tracks-access shortcuts to waypoint and track information, as on the Navigation chart. See page 39. Other Vessels-access AIS and DSC shortcuts, as well as chartspecific AIS display settings, as on the Navigation chart. See page 39. Navaids-toggle all navaids, such as lights and buoys, on or off. Configuring Fishing Chart Setup and Appearance From the Fishing chart, touch Menu > Fishing Chart Setup. Roses-enable information roses around the boat icon, as on the Navigation chart. See page 40. Data Bars-control how charting numbers appear on the screen, as on the Navigation chart. See page 40. You can also turn the compass tape on or off (see page 41). 44 GPSMAP 640 Owner's Manual