Specifications

Examples
Figure12Herring
Inthisscreencapture
aschoolofherring
hasdetected,andit
nowevaluatedbythe
skipper.Targettrackingis
activated,andinthelower
leftcornertheschool’s
heading,distancefrom
thevessel,andspeed
isdisplayed.The180°
verticalviewisactivated,
andcanbeseeninthe
lowerpartofthescreen.
Theschoolisjustlifting
fromthebottom,andithas
agooddensity.
Thiscanbeeasilyinvestigatedduetotheextreme
resolutionfoundintheSimradSH90sonar.
Figure13Sandeel
Thissonarpresentation
istakenfromatrawler
shingforsandeel.We
canseeseveralsmall
schoolsofsandeelaround
thevessel,andonelarger
onthestarboardbow.The
trawldoorscanalsobe
seenbehindthevessel.
Thetrawlisapparently
locatedslightlytotheport
sideofthevessel.
Bykeepingcontrolofthetrawldoorlocations,theskipper
isallowedtooptimizetheshinggearandmaximizethe
efciency.
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