SimradSU90
Systemdescription
ThisSU90screencaptureshowsyouatypicalcatch
situation.Thepresentationprovidesyouwithalotof
information.
ACurrentrange,transducertiltandgain
BSonarpresentation
CCursor’ sposition,bearing(relativetothevessel),
rangeanddepth
DPurseseineandtargetinformation(depthand
estimatedschoolsize),includinginformationfrom
catchmonitoringdepthsensors
EMenusystem
FVerticalview
GNavigationinformationandhullunitposition
TheSimradSU90
isalongrange
omnidirectionallow
frequencysonar.
Itisdesignedformedium
andlargesizedshing
vessels,preferablyfor
purseseiners,butitis
alsowellsuitablefor
trawlers.
TheSimradSU90
allowsyoutochoose
anoperationalfrequency
between20to30kHz
(in1kHzsteps).The
cylindricalmulti-element
transducerallows
theomnidirectional
sonarbeamtobetilted
electronicallyfrom
+10to–60degrees.
Thisallowsyouto
automaticallytrack
schoolsofsh,and
toobservethewhole
watervolumearound
thevessel.Astabilising
systemisincludedfor
electronicpitchandroll
compensation.
TheSimradSU90hasbeendesignedwithnocompromises.ComparedtotheSX90,the
numberofchannelsisincreasedby50%givingthesonaranevenbetterperformance
inselectivityandrange.Thenarrowopeningangle(4,9°at30kHz)andtheincreased
sourcelevel(3dB)makestheSU90averypowerfulandhighresolutionlowfrequency
sonar.ThenarrowbeammakestheSU90evenmoreidealforsearchingshcloseto
thebottomorclosetothesurfaceatlongranges.Italsoprovidesafarbettervertical
viewwithless“bottomclimbing”thatisseenonsonarswithawiderbeam.
Greatemphasishasbeenplacedongivingthebestpossiblesonarpresentationsona
highresolutioncolourdisplay.
TheSU90ProcessorUnitiscontrolledbyMicrosoft’sWindows
®
operatingsystem,
whichresultinaexiblechoiceofpresentationmodesforalargerangeofuser
applications.Thesignalprocessingandbeamformingisperformedinafastdigital
16
381293/A