Simrad EK15 - Page 79

Operationalprocedures
bSchool(20logTVG)
Thisgainsettingoffersweakeramplicationclosetothebottom.Ithasbeen
designedtoprovidethebestechoesforschools.Thephysicalsizeofaschoolallows
youtodetectitevenwithreducedgain.
cFish(40logTVG)
Thisgainsettingprovideslargeramplicationclosetothebottom.Ithasbeen
designedtoprovidethebestechoesfromsinglesh.
dTargets(40logTVG)
Basically,thissettingusesthesameTVGamplicationasFish,butadditional
lteringandcompensationisimplemented.Onlyechoesdetectedandinterpretedas
singleshareshown.Theechoesarecompensatedfortheirphysicalpositioninthe
beam(beamcompensation).Thismeansthatshintheouterregionofthebeamare
adjustedtocorrectsizeeventhoughtheirechoesareweaker.
NotethatthisTargets(40logTVG)settingisonlyfunctionalwithsplitbeam
transducers.
eTargetMix(40logTVG)
Basically,thissettingusesthesameTVGamplicationasFish,butadditionalbeam
compensationisimplemented.Echoesdetectedandinterpretedassingleshare
adjustedtotheircorrectsizeaccordingtotheirphysicalpositioninthebeam.
NotethatthisTargetMix(40logTVG)settingisonlyfunctionalwithsplitbeam
transducers.
fUser(VariableTVG)
ThissettingallowsyoutodeneyourownTVGsetting.
Relatedtopics
•SelectingTVGgainintheEchogramdialogboxonpage67
•Activemenuonpage139
•TVGfunctiononpage215
Procedure
1ClicktheActiveicon.
ThisiconislocatedundertheMainmenu.ItisusedtoopentheActive
menu.
2LocatetheTVGbutton.
3Method1:
aClick[+]or[-]tochooseTVGsetting.
4Method2:
aClickthemiddleoftheTVGbuttontoopenthesubmenu.
bClickonanyTVGsettingtoselectit.
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