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TheST90isequippedwiththecelebratedsignalprocessingsoftwaredevelopedby
KongsbergMaritime.TheST90offersseveralpulsetypes.ThisincludesHyperbolic
FM(HFM)transmissions.Thispulsetypeisalsoknownas"chirp".Itensuresaclutter
freepicturewithveryhighresolutioninrange.Thesignalprocessingandbeamforming
isperformedinafastdigitalsignalprocessingsystemusingthefulldynamicrange
ofthesignals.
Relatedtopics
Systemdiagram,page22
Systemunits,page23
Keyfeatures
TheSimradST90isalongrangeandlowfrequencyshndingsonarwitha360degrees
coverage.WemadenocompromisesduringthedesignoftheST90.Ifhighperformance
isyournumber1criteriawhenchoosingasonar;suchaslongrange,highresolution,
narrowbeamsandhighsourcelevels,thisisyournaturalchoice.
•360degreesomnidirectional
•Operationalfrequencyadjustablefrom14to24kHzinstepsof1kHz
•Narrowbeams(6.5°@17kHz)
•HFM(HyperbolicFrequencyModulation)transmissions(Thispulsetypeisalso
knownas"chirp".)
•Largedynamicrange
•Highdenition
•Stabilizedbeams
•Easyoperation
•Storeandrecallsonardata
•Deneandsaveyourownusersettings
•Clearandeasilycomprehensivesonardata
•Supportsmultipledisplays.
•12transceiverboardsprovide384individualchannels
ThenarrowbeamsprovidedbytheST90giveyouseveraladvantages.Theyincrease
therangeandresolution,andofferaverticalviewwithadditionaldetailsandaclearer
picture.Thenarrowbeamsalsodecreasethenoiselevel.
SimradST90
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