Raymarine A65 - Page 183

5.SelectAuto.
AtickisdisplayedintheAutoboxtosignifyautomaticgainis
enabled.
Settingtheautogainmodefornon-CHIRPsonarmodules
Whenusinganon-CHIRPsonarmodule,fromtheshnder
application:
1.SelectMenu.
2.SelectSensitivitySettings.
3.SelectGainMode.
Alistofavailableautogainmodesisdisplayed:
•Cruising(Low)
•Trolling(Med)
•Fishing(High)
4.Selecttherequiredautogainmode.
Fishndergainon-screencontrols
Touchscreenmultifunctiondisplaysprovideon-screenaccesstothe
gaincontrols.
Selectingtheon-screengaincontrolwilldisplaythegainsettings:
Whenconnectedtoanon-CHIRPsonarmoduletheautomaticgain
has3modes:
WhenconnectedtoaCHIRPsonarmodulenoautomaticgain
modesarerequired:
Wheninmanualmodethesliderbarcontrolisshown:
Note:NewcSeriesgaincontrolsareaccessedbythemenu
options:Menu>SensitivitySettings>Gain.
Enablinganddisablingon-screengaincontrols
Youcanenableanddisabletheon-screengaincontrolsbyfollowing
thestepsbelow.
Onatouchscreenmultifunctiondisplay,withtherelevantapplication
displayed.
1.SelectMenu.
2.SelectPresentation.
3.SelectGainControls.
SelectGainControlswillswitchbetweenshowingandhiding
theon-screencontrols.
Adjustingshndergainmanuallyusingon-screen
controls
Touchscreenmultifunctiondisplaysprovideon-screenaccesstothe
gaincontrols.
1.Selecttheon-screenGaincontrollocatedonthelefthandside
oftheshnderapplication.
2.SelecttheAutoboxtoswitchbetweenAutoandManualgain.
3.WithAutodeselected,selectandholdtheSliderandmoveLeft
todecreasevalueorRighttoincreasevalue.
Settingautogainusingtheon-screencontrols
Touchscreenmultifunctiondisplaysprovideon-screenaccesstothe
gaincontrols.
1.Selecttheon-screenGaincontrollocatedonthelefthandside
oftheshnderapplication.
2.SelecttheAutoboxtoselectAutogainmode.
3.Whenconnectedtoanon-CHIRPsonarmoduleyoucanselect
theAutogainmode:
•Cruising
•Trolling
•Fishing
Fishndercolorgain
Youcanadjustthecolorgaintochangethesignalstrengththreshold
forthestrongestcolorinyourshnderdisplay.
Colorgainsetsthelowerlimitforthestrongestechocolor.All
echoeswithasignalstrengthabovethisvaluearedisplayedinthe
strongestcolor.Thosewithaweakervaluearedividedequally
betweentheremainingcolors.
•Settingalowvalueproduceswidebandfortheweakestcolor,but
asmallsignalbandfortheothercolors.
•Settingahighvaluegivesawidebandforthestrongestcolor,but
asmallsignalbandfortheothercolors.
Therearetwocolorgainmodes:
•Auto—InAutomodethecolorgainsettingisautomatically
adjustedtosuitcurrentconditions.Anyadjustmentsmadeapply
toallshnderwindows.
•Manual—Youcansetthecolorgainmanually,betweenavalue
of0%to100%.
Adjustingtheshndercolorgain
Fromtheshnderapplication:
1.SelectMenu.
2.SelectSensitivitysettings.
3.SelectColorGain.
Thecolorgainsliderbarcontrolisdisplayed.
4.Adjustthecontroltotherequiredvalue.
5.SelectBacktoconrmsettingandclosesliderbar,or
6.SelectAutotoenableautomaticcolorgain.
Thenewvaluesremainsetevenwhenyouswitchoffthedisplay
andareappliedtoallshnderwindows.
FishnderTVG(TimeVariedGain)
TheTimeVariedGain(TVG)functionreducestheamountofclutter
intheshnderdisplaybyvaryingthegainthroughoutthecolumnof
water.Thisfunctionisusefulforreducingtheappearanceof‘noise’.
TheoperationoftheTVGsettingsisdependantupontheconnected
sonarmodule.
Non-CHIRPsonarmodules
•IncreasingtheTVGvalueincreasesthemaximumdepthtowhich
TVGisapplied.Ahighvaluedecreasesthegaininshallowwater
sothatonlythestrongestechoesaredisplayed.
•DecreasingtheTVGvaluereducesthemaximumdepth.Alow
TVGvaluehaslittleeffectongaininshallowwater.
TVGadjustmentcanbemadeautomaticallyormanually.
CHIRPsonarmodules
•Ahighvalueincreasesthegaininshallowwatersothatmore
targetsaredisplayed.
•Alowvaluereducesthegaininshallowwatersothatlessclutter
isdisplayed
TVGadjustmentcanbemadeautomaticallyormanually.
TVGPresetsandautosettings
WhenconnectedtoaRaymarineCHIRPsonarmodule3preset
TVGoptionsareavailable:
•Low
Usingtheshnder
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