SimradES70
12ClicktheHorizontalAxistab.
TheHorizontalAxistabintheEchogramdialogallowsyoutochoosethehorizontal
scaleoftheechogram.Thiscontrolshow“fast”theechogrammovesfromright
towardsleftacrossthedisplay.
13Trythevariousoptionstoseethevariationsontheechogram.
14ClickOKtosavethecurrentsettingsandclosethedialog.
Checkingtherangesettings
Thisproceduredescribeshowtocheckandadjusttheverticalrangesettings.
Procedure
1Observetheverticalrangeoftheechograms.
Notethattheverticalrangeissetupdifferentlydependingontheechogramtype.
2Clickinasurfacerelatedechogramtomakeit“active”.
3ObservetheRangebuttonontheMainmenu.
TheRangefunctionallowsyoutospecifytheverticalrangeofthewatercolumn
coveredbytheechogram.Therangeisdenedfromaselectedstartrange,and
downtoavaluebeneaththecurrentbottomdepth.Thevalueshownandselectedis
bydefaultappliedonlytothecurrentlyselectedechogram.
→Rangeonpage158
4ObservetheStartRangebuttonontheMainmenu.
TheStartRangefunctionallowsyoutospecifythestartdepthoftheechogram,that
isfromwhichdepthinthewatercolumnthepresentationshallstart.Thevalue
shownandselectedisappliedtothecurrentlyselectedechogramtype.
Inasurfacerelatedechogram,youcanclickAutomaticStartDepthtoallowthe
ES70toselectthestartrangeautomatically.
Example2StartRangeinasurfacerelatedechogram
Inasurfaceechogram,settheStartRangevalueto0meters.Thiswillmake
theechogramstartfromtheseasurface(providedthatthetransduceroffsethas
beendened).SetRangetothecurrentdepthplus20meters.Theechogram
willnowshowtheareafromtheseasurfaceanddownto20meters“below”
thebottom.Thebottomcontouriseasilydetectedwhenthedepthchanges.
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