Displayviews
Ifyouhavelimitedyourverticalrange(usingtheRangeandStartRangesettings),the
resultingareaisusedforthebiomasscalculation.Iftheseabedisclearlydenedwith
auniquebottomdetection,thebottomechowillnot
beincludedinthecalculations.
Therefore,ifyouswitchthebottomdetectoroff,thebottomechowillbeincludedin
thecalculation.
Relatedtopics
•StartRangeonpage160
•Rangeonpage158
•CalculationIntervalonpage192
•Echogramonpage220
Bottomechogram
Thisechogramisrelatedtothedetected
bottom.Stopdepth(lowerechogram
boundary)andverticalrangeare
manuallyselectedbytheStartDepth
andRangebuttonsontheMainmenu.
Theechogramisonlydrawnforpings
havingasuccessfulbottomdetection.
AThisisthestartdepthofthe
echogram.
Inabottomechogramitisnormally
itissetupwithStartRangesettoarelativesmallnegativevalue.Thevaluedenes
howmanymeterabovethebottomtheechogramwillstart.
BThisisthebottom.
Sincetheechogramisrelatedtothisbottom,itappearstobeat.Fishescloseto
thebottomistheneasytosee.
Therangefromthestartdepthabovethebottomanddowntosomedistancebelow
theactualbottomisdenedwiththeRangebuttonontheMainmenu.
CThistextidentiesthetransducerusedtocreatetheechogram.
DThisisthescopeview.
Thisviewpresentsindividualcolourlines.Thecolourandlengthofeachline
reectsthereceivedechoamplitude.
EBydefault,the“pingtime”andthedepthrangeisshowninthebottomleftsideof
theechogram.Inthebottomrightcorner,the“pingtime”isthesameascurrent.
ThisinformationcanbechangedusingtheoptionsontheHorizontalAxistabinthe
Echogramdialog.
FThisisthelowerendofthedepthrange.Itisnormallyafewmetersbelowthe
bottomcontour,dependingonthechosenrange.
338106/C
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