NorthStar 961 Reference Manual page 105

Chapter 4 - Understanding the Chart Screen
Chart screen with current stations and station coverage bar
Current stations—if stations are in your vessel's area—are
displayed on the CHART screen, and a STATION COVERAGE
BAR (replacing the INFO BAR) at the bottom of the screen
shows today's date and the number of stations in the coverage
area.
If the STATION COVERAGE bar indicates 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
there are too many stations, zoom in.
To select the current station nearest to your vessel (or to the
cursor, if you've already pressed the CURSOR PAD) and
graphically view this station's current data, press the GRAPH
ON key.
961/962 Operations and Reference Manual, Rev. A Page 4-13