Product specifications

3-2 hsb
2
PLUS Series Color LCD Display
Range Control
3.2 Range Control
The radar picture can be viewed at various scales. The shortest range scale
gives a maximum range of
1
/
8
nautical miles, measured from the default centre
to the top of the radar picture. The longest range scalegivesa maximumrange
of between 24 and 72 nautical miles depending on your scanner.
•Thelong range scales provide the best overview of your vessel’s relation-
ship to land masses, weather fronts and large ship targets in or beyond
view.
•Theshort range scales provide greater detail of the radar echoes close to
your vessel, and should be used as you approach the coastline, harbour or
other vessels in the area.
The Pathfinder Plus Radardisplayincludesconcentric range rings,which you
can use to help you to judge distances on the radar picture. Their number and
spacing are adjusted automatically if you change the range scale. They can be
turned off (see Switching Radar Range Rings or Chart Grid On and Off on
page 2-13).
The Standard Range Scale
Details of the standard ranges that can be selected are shown in the table
below.If you wish,you can customizethe rangescales by specifyingdifferent
ranges, as described in Section 7.4, Radar Set Up Parameters.
* The maximum range depends on your scanner type, as detailed in the Pathfinder Plus Radar
ScannerOwner’s Handbook.
The number of range rings shown in the table is the number to the selected
range. Additional range rings are displayed to the edge of the radar picture, at
the standard ring interval for the current range, and are visible when the centre
is offset.
Table 3-1: Radar Range Scales
Maximum Range
(nm)
Number of Range
Rings
Range Ring Interval
(nm)
0.125
0.25
0.5
0.75
2
2
4
3
0.0625
0.125
0.125
0.25
1.5
3
6
6
0.25
0.5
6
12
24*
48*
72*
6
6
6
6
6
1
2
4
8
12