Installation manual

SimradSH90
ClicktheleftorrightsideoftheAGCbuttontodecrease
orincreasethesetting,orthemiddleofthebuttontoopen
theparameterdialog.
Formoreinformationaboutthisparameter,seeWhatisAGC?
onpage68.
HowtoadjusttheRCG
TheRCG(ReverberationControlledGain)regulatesthereceiver
gainindividuallyforeachofthereceivingbeams.Ifyouselect
asmallormediumvalue,echoesfrompropellers,surfaceand
bottomreverberationswillbesuppressed,whiletargetechoes
willremaininview.Ifyouselectastrongltersetting,itwill
removethebottom,whileechoesonthebottomwillbepresented.
Note
Scatteredshcanbeperceivedasreverberation.TheRCG
functionmustthereforebeusedwithcareifyouwishtond
scatteredschools.
1ClicktheHorizontalorVerticaltabtoopentherespective
menu.
2ClicktheRCGbuttontoadjusttheparameter.
ClicktheleftorrightsideoftheRCGbuttontodecrease
orincreasethesetting,orthemiddleofthebuttontoopen
theparameterdialog.
Formoreinformationaboutthisparameter,seeWhatisRCG?
onpage70.
HowtoadjusttheTVG
TheTVG(TimeV ariedGain)controlsthegaininthesignal
amplier.Thegainisweakestjustaftertheping,andincreases
inaccordancewithtime(andthereforerange).Anumberof
standardgaincurvesareavailable,aswellasOff.ByusingTVG,
thegainisadjustedinsuchwaythataschoolofshwillbe
presentedwithapproximatelythesamestrengthonthescreenin
anypositioninsidetheregulatedTVGrangeof1000meters.
1ClicktheHorizontalorVerticaltabtoopentherespective
menu.
2ClickTVGtoadjusttheparameter.
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