NorthStar 961 Reference Manual page 266

Chapter 12 - Alarms, TideTrack, Currents, and Echo Sounding
Adding the current
station overlay
Selecting current
stations on the
chart screen
Page 12-16
To add current-station information to the CHART screen:
1. At the CHART screen, press the OVERLAY key, then press
the SHOW CURRENTS key.
If current stations are in the area, they're displayed on the
CHART screen, the GRAPH ON key appears, and a
STATION COVERAGE bar (replacing an INFO BAR)
shows today's date and time and the number of stations
within the coverage area.
If the STATION COVERAGE bar says there aren't any
stations in the coverage area, press the OUT key to zoom
out to a wider coverage area (the GRAPH ON key will
appear). If the STATION COVERAGE bar says there are
too many stations, press the IN key to zoom in to a
smaller coverage area (the GRAPH ON key will appear).
In either case, you can also press the CURSOR PAD to
change the coverage area.
Chart screen with current stations and station coverage bar
Choosing vessel-location current stations
To select the current station nearest to your vessel and view its
current data graphically (if you have the tide overlay enabled,
961/962 Operations and Reference Manual, Rev. A