Installation manual

Operationalprocedures

1ClicktheActiveicon.

ThisiconislocatedundertheMainmenu.ItisusedtoopentheActive

menu.

→Activemenuonpage112

2OntheActivemenu,clickBottomDetectortoopentheBottomDetectordialog.

ThepurposeoftheBottomDetectordialogistodenetheupperandlowerdepth

limitsmostlikelytobeusedduringtheES70operation.Inthisdialog,youcanalso

modifythesettingforBottomBacksteptochangethebottomdetectionrelativeto

thebottomecho.

3EnteraMinimumDepth.

Thissettingeliminatesallunwantedbottomdetectionsfromthetransducersurface

anddowntothedeneddepth.

4EnteraMaximumDepth.

Setthisdepthtoapproximately50%morethantheexpecteddepth.IftheES70

shouldloosebottomdetectionduetoairorotherdisturbances,itwilltrytorelocate

thedepthwithintheminimumandmaximumdepthsyouhavedened.Donot

exaggerate.Ifyouforexampleenter5000metersandthebottomtrackislost,the

ES70willsearchtheentiredepthfornewbottomlock.Thiswilltakealotoftime.

5ClickOKtosavethecurrentsettingsandclosethedialog.

Adjustingthebottomdetectiontondatsh

TheES70providestheBottomBackstepparameterintheBottomDetectordialog.You

canusethisparametertoenhancethedetectionofsole,ounderandsimilarspecies.

→Bottomslopesonpage120