Raymarine C140w - Page 161

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
Theshnderpowersettingenablesyoutoadjustthepowerofthe
DSMsonarsignal.Thisisusefulforaccommodatingdifferentwater
depthsandvesselspeeds.
ThepowersettingfortheDSMsonarcanbeadjustedtosuit
differentconditions,suchaswaterdepthandvesselspeed.By
default,thepowersettingisadjustedautomaticallytosuitcurrent
conditions,butthesettingcanalsobeadjustedmanuallyifrequired.
•Lowerpowerlevelsaresuitablefordepthsoflessthan2.4m(8ft).
•Higherpowerlevelsaregenerallymoresuitedtodepthsgreater
than3.7m(12ft).
Therearetwopowermodes:
•Auto.InAutomode,thepowersettingisautomaticallyadjusted
tosuitcurrentconditions.
•Manual.Youcansetthepowersettingmanually,betweenavalue
of1to100%,in10%increments.
Adjustingtheshnderpower
Fromthemainshnderscreen:
1.PressthePRESENTATIONsoftkey.
2.PressthePOWERsoftkeyuntiltheMANoptionisselected.
3.Usetherotarycontroltoselecttheamountofpoweryouwant.
4.PresstheOKbutton.
Thenewvaluesremainsetevenwhenyouswitchoffthedisplay
andareappliedtoallshnderwindows.
Depthanddistancewiththeshnder
YoucanuseVRMmarkersanddepthlinestohelpyoudetermine
depthsanddistancesintheshnderdisplay.
Theshnderdisplayprovidesanumberoffeaturestohelpyou
determinedepthsanddistances.Thesefeaturesareillustratedand
describedinmoredetailbelow:
Usingtheshnder
161