NorthStar 958 Operator's Manual page 16

Chapter 1 - Getting Started
Rotating the chart
Displaying other
information
Clearing a GPS or
WAAS alarm
Page 8
If your vessel is moving, the symbol will point in the direction
of your course over ground. This direction may be different
from your heading. The vessel symbol shows your actual
direction of travel over the bottom, not the direction you're
headed. If your vessel isn't moving, the 958 can't determine
your COG, so the direction of the vessel symbol won't mean
anything.
The scale of your first view is about 128 nautical miles (nm)
from edge to edge. To see more details about your position,
press the IN key. To see more area and less detail, press the
OUT key.
To change the chart-viewing angle from north-up to course-up
to heading-up to leg-up, cycle through the choices by pressing
the ROTATE key. The current angle is shown at the bottom
half of the key.
You can set up your 958's CHART screen to display your
current route, your track history, nearby waypoints or
avoidance points, a lat/lon grid, a radar overlay, or other chart
details. For details, see see "Setting up the chart screen"
starting on page 53.
If the 958 doesn't acquire GPS or WAAS signals within two
minutes, you'll see a flashing NO GPS alarm icon on the lower
right side of the screen. This means the 958 has an alarm
message that needs your acknowledgement: Press the STAR
function key (twice if the echo sounder is installed) to display
the ALARMS screen.
958 Operator's Manual, Rev. A