Setting Up The Chart Screen - NorthStar 958 Operator's Manual

How rotating
affects the chart and
radar

Setting up the chart screen

958 Operator's Manual, Rev. A
The rotation of the chart and the rotation of the radar image
interact under certain circumstances, as described below.
Assume that the chart and radar are both north-up at the start:
CHART
If the
screen's in ...
Browse mode The chart can't rotate; but if
you change the
key to
mode automatically switches
to vessel (see below)
Vessel mode Chart and radar both rotate
together, so if you change
the radar to leg-up, the chart
automatically changes to
match (and vice versa)
To set up the display of data on the CHART screen, press the
CHART SETUP menu key (in either vessel or browse mode)
On the CHART SETUP/STATUS SCREEN you can set up the
details on the CHART screen, turn the radar overlay on and off,
and adjust the 958's track control.
And the radar image is ...
Overlaid on the chart
CONTROL
RADAR
, the chart's
Chapter 4 - Using the Chart Screen
Not overlaid
The chart can't rotate but the
radar can rotate; so if you
change the radar to leg-up,
the chart doesn't change (it
stays north-up)
Chart and radar both rotate
but separately; so if you
change the radar to leg-up,
the chart doesn't change
(and vice versa)
Page 53