Raymarine e7 - Page 202

•Medium(Trolling)isaslightlyhighergainsettingthatdisplays
moredetail.Thisisthedefaultmode.
•High(Fishing)providesthemostdetail,butalsodisplaysthe
mostbackgroundnoiseandsurfaceclutter.
Manual
Ifnecessaryyoucansetthegaincontrolsmanually,betweena
valueof1to100(defaultvalueis75).Thisvalueshouldbeset
highenoughtoseeshandbottomdetailbutwithouttoomuch
backgroundnoise.Generallyahighgainisusedindeepand/or
clearwater;alowgaininshallowand/ormurkywater.
Thenewvaluesremainsetevenwhenyouswitchoffthedisplay,
theyareappliedtoboththeactivewindowandanyothershnder
windowswiththesamefrequency.
Selectingautomaticshndergain
Fromtheshnderapplication:
1.SelectMenu.
2.SelectAdjustSensitivity.
3.SelectGainMode.
4.SelecttheGainModemenusothatAutoishighlighted.
SelectingGainModewillswitchbetweenAutoandManualgain
modes
5.GoBacktotheSensitivitymenu.
6.SelectAutoAdjust.
7.SelecttherequiredAutoGainmode.
Adjustingtheshndergainmanually
Fromtheshnderapplication:
1.SelectMenu.
2.SelectAdjustSensitivity.
3.SelectGainMode.
4.SelecttheGainModemenusothatManishighlighted.
5.UsetheRotaryControltoadjustthegaintotherequiredsetting.
Thenewvaluesremainsetevenwhenyouswitchoffthedisplay,
theyareappliedtoboththeactivewindowandanyothershnder
windowsdisplayingthesamefrequency.
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
of1to100.
Adjustingtheshndercolorgain
Fromtheshnderapplication:
1.SelectMenu.
2.SelectAdjustSensitivity.
3.SelectColorGain.
4.SelecttheColorGainmenusothatManishighlighted.
SelectingtheColorGainmenuwillswitchbetweenAutoand
Manualcolorgain.
5.UsetheRotaryControltoadjusttheColorGaintotherequired
setting.
202e7/e7D—Userreference