Raymarine RL80C Plus Specifications Page 70

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3-2 hsb
2
PLUS Series Color LCD Display
Range Control
3.2 Range Control
Theradarpicturecan be viewed at variousscales.Theshortestrangescale
givesa maximumrangeof
1
/
8
nauticalmiles,measured fromthe defaultcentre
tothetopoftheradarpicture. Thelongestrangescalegivesamaximumrange
of between24 and72 nauticalmilesdependingon yourscanner.
•Thelongrange scalesprovidethebestoverviewofyour vessel’s relation-
shipto land masses,weather frontsand largeshiptargets in or beyond
view.
•Theshortrangescalesprovidegreaterdetailof the radarechoes closeto
yourvessel,andshould be used as you approachthe coastline,harbouror
othervesselsin the area.
ThePathfinderPlusRadardisplayincludesconcentricrangerings,whichyou
canuseto help you to judgedistancesontheradarpicture.Their number and
spacingareadjustedautomatically if youchange therangescale. Theycanbe
turnedoff(see SwitchingRadar Range RingsorChart Grid OnandOffon
page2-13).
The Standard Range Scale
Detailsofthe standardrangesthat can be selectedare shown inthetable
below.Ifyouwish,youcancustomizetherangescalesbyspecifyingdifferent
ranges,as describedin Section 7.4, RadarSetUp Parameters.
*Themaximumrangedependson yourscannertype,as detailedin thePathfinderPlus Radar
ScannerOwnersHandbook.
Thenumberofrange rings shown in thetableis the number to the selected
range.Additionalrangeringsare displayedto the edge of the radarpicture,at
thestandard ringintervalforthecurrentrange, andare visiblewhenthecentre
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
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