Raymarine E90W - Page 175

4.Usetherotarycontroltoselecttheamountofcolorgainyou
want.
5.PresstheOKbutton.
Thenewvaluesremainsetevenwhenyouswitchoffthedisplay
andareappliedtoallshnderwindows.
Fishndercolorthreshold
Thecolorthresholdsettingdeterminestherangeofcolorsusedon
screen.Theeffectofthisistosetacolorthresholdbelowwhich
targetsarenotshown.Forexamplealowsettingwouldresultin
onlythestrongest(orangeandred)targetsbeingdisplayed.
Adjustingtheshndercolorthreshold
Fromthemainshnderscreen:
1.PressthePRESENTATIONsoftkey.
2.PresstheGAINsoftkey.
3.PresstheCOLORTHRESHOLDsoftkey.
4.Usetherotarycontrollertoselecttherequiredcolorthreshold.
5.PresstheOKbutton.
FishnderTVG(TimeVariedGain)
TheTimeVariedGain(TVG)functionreducestheamountofclutter
intheshnderdisplaybyvaryingthegainthroughoutthecolumnof
water.Thisfunctionisusefulforreducingtheappearanceof‘noise’.
•IncreasingtheTVGvalueincreasesthemaximumdepthtowhich
TVGisapplied.Ahighvaluedecreasesthegaininshallowwater
sothatonlythestrongestechoesaredisplayed.
•DecreasingtheTVGvaluereducesthemaximumdepth.Alow
TVGvaluehaslittleeffectongaininshallowwater.
TVGadjustmentcanbemadeautomaticallyormanually.
Adjustingtheshndertimevariedgain
Note:TVGhasnoeffectinshndersimulatormode.
1.Fromthemainshnderscreen,pressthePRESENTATION
softkey.
2.PresstheGAINsoftkey.
3.PresstheTVGsoftkeyuntiltheMANoptionisselected.
4.UsetherotarycontroltoselecttheamountofTimeVariedGain
youwant.
5.PresstheOKbutton.
Fishnderpower
Thepowersettingcontrolsthepowerlevelofthetransducer.
Poweroptions:
•Auto.Thisisthedefaultsetting.WhenitisselectedtheDSM
automaticallydeterminestherequiredpowersettingbasedonthe
currentdepth,speed,and(bottom)signalstrength..
•Manual.Ifyouwishtomanuallyadjustthepowertosuitcurrent
conditions,youcanadjustthepowerlevelbetween0%and
100%,in10%increments.Lowerpowerlevelsarenormallyused
indepthrangeslessthan8ft.(2.4m)andhigherpowerlevelsare
typicallyselectedfordepthsgreaterthan12ft.(3.7m).
Adjustingtheshnderpower
Fromthemainshnderscreen:
1.PressthePRESENTATIONsoftkey.
2.PressthePOWERsoftkeyuntiltheMANoptionisselected.
3.Usetherotarycontroltoselecttheamountofpoweryouwant.
4.PresstheOKbutton.
Thenewvaluesremainsetevenwhenyouswitchoffthedisplay
andareappliedtoallshnderwindows.
Usingtheshnder
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