User manual

Gettingstarted
Thisechogramcoverstheverticalopeningofthetrawl.
Theechogramisonlydrawnwhentrawlpositioninformationisavailable.
→Trawlonpage200
ThebiomasscalculationismadeinthesamewayasforSurfaceechograms.
3Movethecursorovertheechogram.
Observethatarectangular“tooltip”labelisshown.Itprovidesinformationabout
theechoesatthecursor'spresentposition.Whichinformationtoincludeinthelabel
isdenedintheDisplayOptionsdialog.
→DisplayOptionsonpage182
4ClicktheHorizontaltab.Observethattheechogramchannelsareshown
horizontally.
5ClicktheVerticaltab.Observethattheechogramchannelsareshownvertically.
6Clickononeoftheechograms.
Observethattheechogramthenappearswithathickborderline.Theechogramyou
haveselectedisnowthe“active”echogram.AnychangesmadeintheEchogram
dialogwillbydefaultonlyapplytothisechogram.
7OntheActivemenu,clickEchogram.
ObservethattheEchogramdialogopens.
TheEchogramdialogallowsyoutosetuptheparameterscontrollingtheechogram
presentation.Thethreetabscontrolthehorizontallines,theechogramtypewith
appliedTVG,andhowfasttheechogrammovesacrossthedisplay.
→Echogramonpage220
8IntheEchogramdialog,checkthattheLinestabisshown.
TheLinestabintheEchogramdialogallowsyoutocontrolthehorizontaland
verticallinesusedtoenhancetheechogrampresentation.Itallowsyoutochange
theappearanceofthebottomline.Youcanaddanextrabottomline,andinaddition
tothisyoucanenableeitherawhitelineorahardnessindicatorline.Thetabalso
offersseveralhorizontalinformationlines,andyoucanchoosetheverticalscale
oftheechogram.Finally,theLinestabofferstimeordistancemarkers,andyou
canenableannotations.
9ClickBottomlineandWhitelinetoenablethese.Observethechangesonthe
echogram.
10ClicktheEchogramtab.
TheEchogramtabintheEchogramdialogallowsyoutoselectwhichTVGcurveto
usefortheechogram.Youcanchoosefromseveralstandardcurves,ormakeyour
own.Thetabalsoallowsyoutochoosewhichtypeofechogramyouwishtodisplay.
→TVGgainonpage291
11ChangetheEchogramTypetoseethevariations.
338106/C
31