
Chapter 5: Using the Radar 5-15
• Long range scales - provide the best overview of the vessel’s relationship to
landmasses, weather fronts and large ship targets in or beyond the field of vision.
The longest range scale available is between 24 and 72 nautical miles (or the equiv-
alent in the chosen unit) depending upon the scanner fitted.
The range of the radar is adjusted by pressing the RANGE button.
Press IN to decrease the range scale or ‘zoom in’.
Press OUT to increase the range scale or ‘zooms out.
Each press of the button changes the range by one setting. Pressing
and holding the button will change the range quickly in the required
direction.
Radar range and chart scale synchronization
The chart application includes an option to synchronize the radar range and chart scale
(see
page 4-23
). If this is set to ON, whenever the chart scale is changed, your radar
window will automatically change range, and when you change the radar range the
synchronized chart windows will change scale.
5.8 How do I measure distances, ranges and bearings?
When you are using the radar application, you can measure distances, ranges and
bearings in a variety of ways. These options are detailed in the table below:
... Using the range rings
Use the range rings to gauge the approximate distances between points. Range rings
are concentric circles displayed on the screen and centred from your boat at pre-set
distances. The number of rings shown and their spacing changes as you range in and
out. The current setting is displayed in the status bar e.g. RR 2nm.
Functions
Distances
between points
Range from
your boat Bearings
Range Rings Yes (approx.) Yes (approx.) -
Cursor - Yes Yes
Variable Range Markers (VRMs) - Yes -
Electronic Bearing Lines (EBLs) - - Yes
Floating VRMs Yes - -
Floating EBLs Yes
D6585-1
RANGE
IN
OUT
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