Filter
Top Products
26 GPSMAP 620 and GPSMAP 640 Owner’s Manual
Marine Mode: Viewing Almanac Data
Marine Mode: Viewing Almanac Data
Use the Information screen to access almanac data about tides and
currents, as well as sun and moon (celestial) data.
You can also select tide, current, and celestial information for a
specic station directly from the Navigation chart. Touch near the
specic station. When the
pointer icon is near the station, touch
Information and then touch Tides, Currents, or Celestial.
Viewing Tide Station Information
To view tide information from the Home screen, touch
Information > Tides. Information for the most-recently viewed
tide station is shown.
Tide station
Local time
Tide level at
local time
The Tide Station Graph
• Touch any point on the tide graph to view the tide level at a
different time. You can also drag your nger along the graph to
scroll.
• Touch Nearby Stations to view other tide stations close to your
position.
• Touch Change Date > Manual to view tide information for a
different date.
• Touch Show Report to view the Tide Report for the selected
station.
Viewing Current Information
To view current information from the Home screen, touch
Information > Currents. Information for the most-recently
viewed current station is shown.
• Touch any point on the tide graph to view the current activity at
a different time. You can also drag your nger along the graph
to scroll.
• Touch Nearby Stations to view other current stations close to
your present location.
• Touch Change Date > Manual to view current information for
a different date.
• Touch Show Report to view the Current Report for the selected
station.