Simrad ST90 - Page 85

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Tip
Werecommendthatthereverberationcontrolledgainisactiveallthetime,butbecareful
intheverticalpresentation.Thelterworksbestonsmallschools.Thisroughguidetothe
settingscanbeusedasastartingpointforownexperiments.
1Useforschools.
2Useforschoolswithhigherdensity.
3Useforschoolsclosetobottom.Thissettingwillalsoreducethebottomechoes.
4Useforscatteredsh.
5Useforscatteredsh.Thissettingusesaslightlydifferentalgorithmthantheother
scatteredshsettings.
6Useforschools.Thissettingusesaslightlydifferentalgorithmthantheotherschool
settings.
7Useforschools.Thissettingusesaslightlydifferentalgorithmthantheotherschool
settings.
8Useforscatteredsh.Thissettingusesaslightlydifferentalgorithmthantheother
scatteredshsettings.
9Useforscatteredsh.Thissettingusesaslightlydifferentalgorithmthantheother
scatteredshsettings.
TheltersintheST90areimplementedin“series”.Thereverberationcontrolledgain
adjustmentismadelateinthesequence,soanychangestotheprecedingltersmayhave
aneffectonhowitworks.
Procedure
1Clickinanyviewtomakeitactive.
Theactiveviewisidentiedwithathickerborder.UnlessyouusetheApplytoall
function,allchangesyoumakewillonlybeappliedtothisview.
2OpentheActivemenu.
3SelectRCG(ReverberationControlledGain).
4Selectavaluefromtheoptionsprovided.
Thechoiceyoumakeisbydefaultonlyappliedtothecurrentlyselected(active)view.
Operatingprocedures