Simrad SU90 - Choosing the Colours Used to Present the Echoes; Selecting Measurement Units

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Choosingthecoloursusedtopresenttheechoes
Severaldifferentcolourscalesarepredenedandavailableforthepresentationofthe
echoes.Youcaneasilychoosewhichcolourstouse.Thepresentationcolourshaveno
effectontheoperationalperformanceoftheSU90.
Context
Whichcolourscaletouseismainlyapersonalpreferencebasedonambientlight
conditions,thenatureoftheechoesandyourownexperience.Keepinmindthatinthe
basicscalewith12colours,eachdiscretecolourrepresentsa3dBrangeofechosignal
strength.Thisimpliesthatthenextcolourisselectedeverytimetheechostrengthis
doubled.Ifyouchoosetousemanycolours,theresolutionoftheSU90presentation
isgreatlyimproved.Itistheneasiertodistinguishthedifferencebetweenthevarious
echoesofdifferentsizeand/ortargetstrength.
TheSmoothEchosounderscaleisbasedonthestandard12-colourscale.Additional
colourshavebeenaddedbetweenthemtomakesmoothercolourtransitions.
Procedure
1OpentheDisplaymenu.
2SelectColourSetup.
ObservethattheColourSetupdialogboxopens.
3UnderEchoColours,choosethecolourscaleyouwanttouse.
4UnderColourBrightness,choosehowintenseyouwantthesecolourstoappear.
5Atthebottomofthedialogbox,selectApplytopreviewyourchoice(s).
6SelectOKtosavetheselectedsettingandclosethedialogbox.
Relatedtopics
Deningsettingsrelatedtouserpreferencesandindividualcustomizing,page89
Selectingmeasurementunits
TheSU90ispreparedtoworkwithseveralinternationalstandardsforunitsof
measurements.FromtheUnitspageyoucontrolwhichunitsofmeasurementsthatare
used.
Context
TheSU90userinterfacepresentsmanymeasurements.Thesemeasurementsarefor
examplerelatedtodepth,rangeanddistance.UsetheUnitsoptionstoselecttheunitsof
measurementsyouwanttoworkwith.TheSU90usestheminallpresentations.You
onlyneedtodenethemonce.
SimradSU90OperatorManual