Installation manual

Operationalprocedures

Howtoestablishverticalmarkers

TheechogramsprovidedbytheES70maycontainadditionalinformation.Thefollowing

lines,markersandannotationscanbeenabled:

•Bottomlineonpage54

•Whitelineonpage54

•Hardnesslineonpage55

•Trawllineonpage55

•Variabledepthlineonpage56

•Rangeotherlinesonpage56

•Biomasslineonpage57

•Rangescalesonpage57

•Verticalticksonpage57

•Annotationsonpage58

Thisprocedureexplainshowyoucanenableoneormoreverticalmarkersinthecurrent

echogram.

1ClicktheActiveiconundertheMainmenutoopentheActivemenu.

→Activemenuonpage107

2ClickEchogramtoopentheEchogramdialog.

3OntheLinestab,observethevariousverticalmarkersthatcanbeenabled.

Note

TheannotationsarecontrolledontheAnnotationdialog,buttoplacetheannotations

intheechogram,youmustenablethemintheEchogramdialog.

4Enabletheverticalmarkersyouwishtosee.

5ClickOKtosavethecurrentsettingsandclosethedialog.

HowtoselectTVGgainintheEchogramdialog

TVGmeansTimeV ariedGain.

ThewholeideawithTVGisthatechoesfromshshallhavethesameecholevel(colour)

independentoftheirdepths.

TheES70hasaTVGrangedownto15000meters,whichforallpracticalpurposesis

unlimited.TheES70doesnothaveaTVGcompensatedreceiverlikemostotherecho

sounders.IntheES70theTVGismadeinsoftwareaftertheechoesfromthereceiver(s)

havebeenconvertedtodigitalformat.Inordertomakethisworkthereceivermust

haveverylargedynamicrange.

343539/B