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Chapter 4: Using the Chart 77
Distinguishing between fixed and moving objects
You can overlay radar image data over your chart image allowing better distinction
between fixed objects and other marine traffic. For best results, switch on Radar-Chart
synchronization (see
page 76
) to ensure radar range and chart scale are synchronized.
To switch radar overlay on:
1. Select radar overlay:
The default soft keys change to give access to some of the radar options and if a
radar is connected, the radar image will be overlaid on the chart e.g.
2. To access radar and navigation options:
Note:
If radar overlay is applied to a chart window that is set to system view, the over-
lay will be displayed in all other system view chart windows.
To turn off radar overlay:
PRESENTATION CHART LAYERS
RADAR OVERLAY
D6889-4
O
N
Radar range
D6896-3
Status
4nm North-Up (Relative Motion) Local
Overlay
D8364_1
OK
x2
NAVIGATION
OPTIONS...
RADAR
OPTIONS...
... For route and track options.
... For target tracking, gain and target
display or to change radar range.
PRESENTATION CHART LAYERS
RADAR OVERLAY
O
F
F
D8365_1
81221_4.book Page 77 Tuesday, February 28, 2006 5:24 PM