Specifications

SimradSH90
Therefore,before youstartthemanualoperation,readcarefullythroughtherelevant
procedure(s).Youwillthenfamiliarizeyourselfwiththemethodsandthesafety
requirements.
TherelevantproceduresarelocatedintheSH90ReferenceManual.
Transducerhandling
Note
Alltransducersmustbehandledasdelicateitems.Anywrongfulhandlingmaydamage
thetransducerbeyondrepair.
Donotactivatethetransducerwhenitisoutofthewater.
Donothandlethetransducerroughly,avoidimpacts.
Donotexposethetransducertodirectsunlightorexcessiveheat.
Donotusehighpressurewater,sandblastingormetaltoolstocleanthetransducerface.
Donotusestrongsolventstocleanthetransducerface.
Systemdescription
TheSimradSH90isanomnidirectionalhighfrequencysonar.
Itisdesignedforallsizedshingvessels,bothpurseseinersandtrawlers.
Theoperationalfrequencyis114kHz.Thecylindricalmulti-elementtransducerallows
theomnidirectionalsonarbeamtobetiltedelectronicallyfrom+10to–60degrees.
Thisallowsyoutoautomaticallytrackschoolsofsh,andtoobservethewholewater
volumearoundthevessel.Astabilisingsystemisincludedforelectronicpitchand
rollcompensation.
Greatemphasishasbeenplacedongivingthebestpossiblesonarpresentationsona
highresolutioncolourdisplay.
TheSH90ProcessorUnitiscontrolledbyMicrosoft’sWindowsXP
®
operatingsystem,
whichresultinaexiblechoiceofpresentationmodesforalargerangeofuser
applications.Thesignalprocessingandbeamformingisperformedinafastdigital
signalprocessingsystemusingthefulldynamicrangeofthesignals.Inadditiontothe
traditionalsinglefrequencytransceiversystem,theSimradSH90containsanadvanced
frequencymodulatedltersystem(FM).
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