NorthStar 957, Operator'S Manual, Page: 27 / 204

Chapter 2 - Introducing the 957
957 Operator’s Manual, Rev. B Page 19
Introducing the display screen
Overhead view
The 957’s
CHART
screen displays navigation data in an easily
recognizable, practical format: an overhead view of your
vessel’s present position (or any position you choose) in
relation to land masses, nav aids, and your own defined
waypoints and routes. As you navigate, your vessel remains
centered on the
CHART
screen, and the chart moves
underneath your vessel.
Chart screen redraw
feature
The
CHART
screen’s high-speed redraw feature means you
don’t have to wait when you’re scrolling from one location to
the next. The 957 automatically keeps the chart visible—even
as you move from one chart to the next. Move the cursor,
press a key, and you’re still navigating through a channel,
around an island, or in open water—always in full view of
what’s around you at all times.
Occasionally, you may see an hourglass symbol briefly
displayed on the screen while the 957 is changing or
redrawing the chart.
Display-screen
lighting
The 957’s large full-color screen is easily readable under all
conditions from full, direct sunlight to total darkness.
Anti-reflection treatment of the display and its window
eliminates over 90 percent of the reflection and glare usually
encountered in bright sunlight.
Adjusting the brightness
The fluorescent tubes that illuminate the 957 slowly dim after
several thousand hours of use. If you use your 957 for many
hours each day, you may want to keep the level of the display
lighting low when you don’t really need it. To adjust the
screen’s brightness, press the
BRIGHTNESS
key: Pressing the
upper arrow brightens the screen; pressing the lower arrow
darkens it.