Kongsberg Simrad ST90 - Page 27

442728/B
27
Note
Thistaskmustbedonewiththetransducercabledisconnectedfromthetransceiver .
Procedure
1OpentheOperationmenu.
2SetTxPowertoOff.
3Makesurethatthedummyloadisdisconnectedfromthetransceiver.
4Makethefollowingpreparations.
aAtthebottomofthedisplaypresentation,selectBowUppresentationmode,and
activatetheHorizontalview.
bOntheMainmenu:
1SetRangeto1500m.
2SetGainto20.(TheGainsettinghasnoeffectonthenoisemeasurement.)
cOntheOperationmenu:
1SetOperationtoNormal.
2SetTxPowertoOff.
dOntheActivemenu:
1SetTVG(TimeV ariableGain)to0logR.
2SetPing-PingFiltertoOff.
3SetPulseTypetoCWMedium.
4SetFrequencytothestartfrequency:
5SetHorizontalTXSectortoOmni.
6SetVerticalTXSectortoNormal.
7SetAGC(AutomaticGainControl)toOff.
8SetRCG(ReverberationControlledGain)to0(zero).
9SetNoiseFiltertoOff.
eOntheSetupmenu:SelectDiagnosticstoopenthedialogbox.
fSelectNoisetoopenthepage.
5OpentheElementBITE(ElementBuilt-InTestEquipment)dialogbox.
aSelectElementBITEtoopenthedialogbox.
bSelecttheB-Scantabtoopenthepage.
Testprocedures