GPSMAP 640 Owner’s Manual Marine Mode: Viewing Almanac DataMarine Mode: Viewing Almanac DataUse the Information screen to access almanac data about tides andcurrents, as well as sun and moon (celestial) data.You can also select tide, current, and celestial information for aspecific station directly from the Navigation chart. Touch nearthe desired station. When the pointer icon is near the desiredstation, touch information and then touch tides, Currents, orCelestial.Viewing Tide Station InformationTo view tide information from the Home screen, touchinformation > tides. Information for the most-recently viewedtide station is shown.Tde statonLocal tmeTde level atlocal tmeThe Tide Station GraphTouch any point on the tide graph to view the tide level at adifferent time. You can also drag your finger along the graph toscroll.Touch Nearby Stations to view other tide stations close to yourposition.Touch Change Date > Manual to view tide information for adifferent date.Touch Show Report to view the Tide Report for the selectedstation.Viewing Current InformationTo view current information from the Home screen, touchinformation > Currents. Information for the most-recentlyviewed current station is shown.Touch any point on the tide graph to view the current activity ata different time. You can also drag your finger along the graphto scroll.Touch Nearby Stations to view other current stations close toyour present location.Touch Change Date > Manual to view current information fora different date.Touch Show Report to view the Current Report for the selectedstation.••••••••
