Simrad NX40/45 Installation and Operation Manual
77
Enable SmartCraft operation.
AIS
No appropriate AIS receiver is
fitted.
Disable AIS.
An appropriate AIS receiver is
fitted.
Enable AIS.
18-2 Setup > Chart
>
Chart
Rotation
The options for chart rotation are:
North up North is always at the top
of the chart window.
Track up The chart is rotated so that
the boat direction is to the top of
the window. This option is useful for
navigating narrow harbours or rivers.
The unit asks for a course deviation
resolution; this is how much the boat
direction needs to change to make
the chart redraw.
Tip: If the chart redraws too
frequently, increase the course
deviation setting.
Course up This option is only
available if the boat is navigating to
a destination. The chart is rotated
so that the plotted course to the
destination is vertical.
Palette
Select the color scheme for the LCD
window.
The options are:
Normal
Sunlight Brighter colors, more
visible in sunlight.
Night Reversed colors for night, to
preserve night vision.
Map datum
GPS positions are based on a
worldwide reference (datum) known
as WGS 84. Most paper charts
are based on WGS 84. However,
some paper charts are based on
other datums In these cases, the
latitude and longitude coordinates of
objects on the unit chart window are
different to the latitude and longitude
coordinates of these objects on
the paper chart. This applies to all
objects, such as the boat, waypoints,
tracks, lines of latitude and longitude
CAUTION
!
!
CAUTION
DANGER
WARNING
When you change to a
chart with a different
datum, change the unit
map datum again.
