Changing Radar Scale And Rotation - NorthStar 6000i Addendum Reference Manual

Changing radar scale and rotation

Changing the scale
To change the radar's scale, press the IN key to
zoom in (smaller area, more detail) or the OUT
key to zoom out (wider area, less detail).
Using zoom on a split screen
If there's no radar overlay on the chart, the chart
and radar are scaled separately. Zooming in on
the chart, for example, has no effect on the
radar's scale. If the
you're zooming the radar; if it indicates
you're zooming the chart.
However, if the radar overlay is turned on, the
chart and radar scales are locked together. When
you zoom in on the chart, radar scale changes to
match the chart.
Rotating the radar image
To rotate the radar image, press the ROTATE key
repeatedly until it indicates the rotation you
want; you have the same options as for a
screen.
The rotation of the chart and the rotation of the
radar interact under certain circumstances, as
described in the table below. If the
indicates
indicates
Control key indicates Radar ,
Chart ,
Control key
Radar , you're rotating the radar; if it
Chart , you're rotating the chart.
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CHART
Sea State
The Sea State control is available only when the
Mode control is set to Range Rider.
Sea State adjusts sea clutter for all ranges up or
down slightly to correspond with the expected
echoes from whitecaps and breaking waves. The
normal or "0" setting applies no changes, and is
used when the sea state is the same as when the
gain and clutter settings were entered. Positive
numbers can be used when the sea is rougher,
and negative numbers when the sea state is
calmer.
To set the Sea State:
1. From the main radar screen, press Page 2 and
Page 3 .
2. Press Sea State .
3. Use the cursor pad to enter a new number.
Press Done to go back to the main radar screen.
Interference rejection
Certain types of interference (for
example, from radars on other
vessels) can be lessened by using
the interference rejection filter.
Interference Rejection repeatedly to
Press
Off , 1 (low), 2 (medium), or 3 (high).
select
Trails
Trails on the radar image help
you track the motion of moving
Trails repeatedly to
targets. Press
select how often trail points are
recorded: every 15 seconds, 30 seconds, every
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