Raymarine E90W - Fishfinder Presentation Options

imagewithinthecurrentrange.Changestotherangeshiftare
reectedinallshnderwindows.
1.PresstheRANGEcontroltoopentherangetoolbar.
2.PresstheRANGEsoftkeyrepeatedlyuntiltheMANoptionis
selected.
3.PresstheRANGESHIFTsoftkey.
4.Selectyourdesiredsettingusingthetrackpad.
5.PressOK.
12.6Fishnderpresentationoptions
ThePRESENTATIONsoftkeygivesyouaccesstoafeatures
andfunctionswhichenhancetheshnderdisplayandprovide
additionalon-screenfunctionality.
Presentationoptionsinclude:
•Gainsettingstoenhancedisplayclarity.
•Powertothetransducer.
•VRMfeaturesformeasuringdepthdistance.
•Dualfrequencyviewoptions.
•Scrollpauseandresume.
Sonargain
ThegainsettingsalterthewaytheDSMprocessesbackground
noise(alsocalledclutter).Adjustingthegainsettingscanimprove
thesonarimage,howeverforoptimumperformanceinmost
conditions,werecommendthatyouusetheautosettings.
Thegainadjuststhereturnthreshold(echostrength)abovewhich
theshnderwillshowanobjectonthescreen.
Therearetwogainmodes:
•Auto
•Manual
Auto
InAutomode,theDSMsonarautomaticallyadjuststhegainsetting
tosuitcurrentconditions.Anyadjustmentsmadeapplytoall
shnderwindowsusingthatparticularfrequency.
TherearethreeAutomodes,eachsuitedtodifferentscenarios:
Usingtheshnder
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