7.3 3D chart cardsBefore you can use the 3D chart application, you must have chartcards containing the appropriate 3D cartographic data.The 3D chart application relies on appropriate cartographic datastored on CompactFlash chart cards. You must have chart cardscontaining 3D cartographic data for the geographic area in whichyou want to navigate your vessel.Chart cards containing approriate 3D cartographic data are availablefrom the www.navionics.com web site.7.4 3D chart display overviewThe 3D chart application features a number of display modes tohelp you navigate your vessel.The following diagram show the various elements of the display:ModeShows modeapplication isworking in.RotationShows in degrees true,how far the on-screenview has been rotatedfrom your boat's heading.RangeHorizontal distance acrossscreen (halfway up the windowor at center of view).Shown inselected system units.Boat symbolBoat's position onchart. Select sailor power boat.Center-of-viewWhite cross indicatescenter of chart viewat sea level.North arr ow3D indication ofTrueNorth in relation tothe chart view.Depth scaleApproximatedepth beneathyour boat.Wa ypointWith arrivalcircleCartogr aphic objectsSelect objects for displayvia the 3D Chart Setupmenu.D11602_13D chart view modesYou can change the view provided by the 3D chart to give you abetter view of your surroundings.The 3D chart application has two main viewing modes:• Active Motion mode• Planning mode88 C-Series Widescreen user reference