Installation manual

Table Of Contents
SimradSH90
TrueRange
TheTrueRangebuttonislocatedintheCosmeticsmenu,whichin
turnisopenedfromtheDisplaymenu.RefertoSlantRangeon
page159forfurtherinformation.
Relatedtopics
Cosmeticsmenuonpage103
SlantRangeonpage159
TVG
Dialogdescription
TheTVG(TimeV ariableGain)parameterdialogopenswhen
youclicktheTVGbuttonintheHorizontal,VerticalandVertical
180menus.
TheTVG(TimeV ariableGain)controlsthegaininthesignal
amplier.Thegainisweakestjustaftertheping,andincreases
inaccordancewithtime(andthereforerange).TheTVGcanbe
selectedwithsixdifferentcurveslopes,eachhavingdifferent
gainregulations.TheAutooptionismarkedwithanasteriskto
indicatethetheoreticallycorrectsettingforthedifferentrange
settings.Withthissetting,thegainisadjustedinsuchwaythata
schoolofshwithacertainsizeanddensitywillbepresented
withapproximatelythesamestrengthonthescreeninany
positioninsidetheregulatedTVGrange.
TVGdialogoptions
Off:ClicktoswitchtheTVGoff.
[x]LOGR:ClicktoselectTVGfunction.
Close:Clicktoclosetheparameterdialog.
Help:Clicktoaccesstheon-linehelp.
Relatedtopics
WhatisTVG?onpage178
Horizontalmenuonpage93
Verticalmenuonpage95
Vertical180menuonpage96
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