Simrad PI GEOMETRY - QUICK REFERENCE GUIDE REV B Instrukcja Instalacji Strona 23

  • Pobierz
  • Dodaj do moich podręczników
  • Drukuj
  • Strona
    / 224
  • Spis treści
  • BOOKMARKI
  • Oceniono. / 5. Na podstawie oceny klientów
Przeglądanie stron 22
SimradSH90
selectedamountoftransmissions(pings),andanechohastobe
presentintheselectedamountofpingsinordertobepresented
onthedisplay.
Notethatinroughseas,whenthebeameasilycanmissthetarget
inseveralpings,thePPFiltermustbeusedwithcare.
TVG(TimeVariableGain)
TheTimeV ariableGain(TVG)functioncontrolsthegainof
thereceiversothataschoolwithagivensizeanddensityis
presentedwithapproximatelythesamestrengthonthedisplay,
insidetheregulatedTVGrange.Thiscanalsobeseenasalter,
becauseitreducesthenoiseclosetothevessel.Theregulated
strengthoftheTVGcanbeselectedinthemenu.
Noiselter
Thenoiselterisdesignedtoremoveunwantedacousticnoise
fromthesonarpicture.Itwillreducetheinterferencefromother
acousticsystems(sonarsandechosounders)onyourownvessel
andfromothervesselsinthevicinity.Itwillalsosuppressthe
noisefromyourownpropellersandfromothersimilarnoise
sources.
Transmission
ThetransmissioniscontrolledfromtheProcessorUnit.The
parametersyouhavechosenaretransferredtotheTransceiver
UnitbymeansoftheEthernetcable.
TheTransceiverUnitcontains480transmitterchannelswhich
aredistributedon16identicaltransceivercircuitboards.Each
transmitterchannelisindividuallyloadedwiththeparametersfor
therelevanttransducerelementposition.Theparametersinclude
poweroutputandtimedelaytoformabeamwiththeselected
beamangle.
Whenthestabilisingsystemisactive,thetiltangleforeachbeam
willautomaticallybecorrectedrelativetothevessel’spitchand
rollmovements.
Optionalfunctionality
TheSimradSH90isasingle114kHzsonarwithbeam
stabilisation.
Theoptionsdescribedbelowarepreprogrammedintothe
standardsoftwareversion,andacodewordisrequiredtomake
theactualoptionavailable.
Scienticoutput
323775/B
21
Przeglądanie stron 22
1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 223 224

Komentarze do niniejszej Instrukcji

Brak uwag