Installation manual

Operationalprocedures
1ClicktheActiveiconundertheMainmenutoopentheActivemenu.
→Activemenuonpage107
2OntheActivemenu,clickBottomDetectortoopentheBottomDetectordialog.
Thisdialogisusedtodenevariousparametersassociatedwiththebottom
detection.Theseincludethedepthrange,wheretheES70searchesforthebottom.
3EnteraMinimumDepth.
Thissettingeliminatesallunwantedbottomdetectionsfromthetransducersurface
anddowntothedeneddepth.
4EnteraMaximumDepth.
Setthisdepthtoapproximately50%morethantheexpecteddepth.IftheES70
shouldloosebottomdetectionduetoairorotherdisturbances,itwilltrytorelocate
thedepthwithintheminimumandmaximumdepthsyouhavedened.Donot
exaggerate.Ifyouforexampleenter5000metersandthebottomtrackislost,the
ES70willsearchtheentiredepthfornewbottomlock.Thiswilltakealotoftime.
5ClickOKtosavethecurrentsettingsandclosethedialog.
Howtoadjustthebottomdetectiontondatsh
TheES70providestheBottomBackstepparameterintheBottomDetectordialog.You
canusethisparametertoenhancethedetectionofsole,ounderandsimilarspecies.
→Aboutbottomslopesonpage115
1ClicktheActiveiconundertheMainmenutoopentheActivemenu.
→Activemenuonpage107
2OntheActivemenu,clickBottomDetectortoopentheBottomDetectordialog.
Thisdialogisusedtodenevariousparametersassociatedwiththebottom
detection.Theseincludethedepthrange,wheretheES70searchesforthebottom.
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