Garmin GPSMAP 5215 Owner's Manual

Also see for GPSMAP 4008 - Marine GPS Receiver: Technical reference Important safety information Owner's manual Supplement Owner's manual

Contents

Garmin GPSMAP 5215 Owner's Manual Manual pdf 77 page image

GPSMAP® 4000/5000 Series Owner’s Manual 73Radar• Select Backward - Starboard to navigate the route from the destination point used when the route wascreated, to the right of the original route.9. From the Home screen, select Radar.10. Select Cruising, Harbor, offshore, Dual Range, or Sentry.The route appears as a magenta line, with the starting point, destination, and turns indicated.11. Review the course indicated by the magenta line.12. Follow the magenta line along each leg in the route, steering to avoid land, shallow water, and otherobstacles.About the Radar OverlayThe Radar Overlay superimposes radar information on the Navigation Chart or the Fishing Chart. Data appearson the Radar Overlay based on the most-recently used radar mode (Cruising, Harbor, Offshore, or Sentry),and all settings configurations applied to the Radar Overlay are also applied to the last-used radar mode. Forexample, if you use Harbor mode and then you switch to the Radar Overlay, the Radar Overlay would showHarbor mode radar data. If you changed the gain setting using the Radar Overlay menu, the gain setting forHarbor mode would change automatically.The Radar Overlay does not show data based on the Dual Range radar mode, and settings configurationsapplied to the overlay are not applied to the Dual Range mode.Radar Overlay on the Navigation ChartRadar Overlay and Chart Data AlignmentWhen using the Radar Overlay, the chartplotter aligns radar data with chart data based on the boat heading,which is based by default on data from a magnetic heading sensor connected using a NMEA 0183 or NMEA2000 network. If a heading sensor is not available, the boat heading is based on GPS tracking data.GPS tracking data indicates the direction in which the boat is moving, not the direction in which the boatis pointing. If the boat is drifting backward or sideways due to a current or wind, the Radar Overlay maynot perfectly align with the chart data. This situation should be avoided by using boat-heading data from anelectronic compass.If the boat heading is based on data from a magnetic heading sensor or an automatic pilot, the heading datacould be compromised due to incorrect setup, mechanical malfunction, magnetic interference, or other factors.If the heading data is compromised, the Radar Overlay may not align perfectly with the chart data.Showing the Radar OverlayThe Radar Overlay displays data based on the most-recently used radar mode.From the Home screen, select Radar > Radar overlay.The radar picture appears in orange and overlays the Navigation Chart.Zooming In and Out on the Radar OverlayZooming while panning the map only affects the zoom scale of the map. The radar range remains the same.Zooming while the map is locked on the boat (not panning) affects the zoom scale of the map and the radarrange.