Raymarine E90W - Using Radar to Measure Distances, Ranges, and Bearings

9.10Usingradartomeasuredistances,
ranges,andbearings
Whenyouareusingtheradarapplication,youcanmeasure
distances,rangesandbearingsinavarietyofways.
Theseoptionsaredetailedinthetablebelow:
Functions
Distances
Between
Points
RangeFrom
YourVesselBearings
RangeRingsYes
(approximate
distance)
Yes
(approximate
range)
No
Cursor
NoYesYes
VariableRange
Markers(VRMs)
NoYesNo
Electronic
BearingLines
(EBLs)
NoNoYes
FloatingVRMsYesNoNo
FloatingEBLsNoNoYes
Measuringusingtherangerings
Usetherangeringstogaugetheapproximatedistancesbetween
points.Rangeringsareconcentriccirclesdisplayedonthescreen
andcentredfromyourboatatpre-setdistances.Thenumberand
spacingoftheringschangesasyourangeinandout.
Range -
1
/
4
nm
Range rings -
1
/
8
nm apart
Range -
3
/
4
nm
Range rings -
1
/
4
nm apart
Range - 1
1
/
2
nm
Range rings -
1
/
4
nm apart
D8407_1
e.g.
Measuringusingthecursor
Tomeasurethebearingandrangefromyourboattoaspecied
target,movethecursortotheappropriatepositiononthescreen.
Bearing and range from
your vessel to cursor
D8402_1
Cursor
Note:IfcursorpositionisnotshownintheDatabar,gotoMenu
>DatabarSetup>Congure.
MeasuringusingVariableRangeMarkers(VRMs)
AVariableRangeMarker(VRM)isacirclecentredonyourvessel’s
positionandxedwithrespecttotheheadingmode.Whenthis
circleisadjustedtoalignwithatarget,itsrangefromyourboatis
measuredanddisplayedontheADJUSTVRMsoftkey.Thedatais
alsodisplayedifyouselecttheVRMwiththecursor.
136E-SeriesWidescreenUserreference