Simrad ST90 - Page 359

442703/B
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•B-Scan
TheB-Scanpageallowsyoutomonitorthetimeseriesofdatathatisreceivedfrom
eachoftheelementsintheST90transducer.Thestartsampleandthenumberof
samplestobedisplayedareadjustable.
WhenyoumovethecursorovertheB-ScanpresentationoftheST90transceiver
channels,eachelementinthetransducerisclearlyidentiedasalongcoloured
verticalrectangle.IfyouplacethecursorontopofoneoftheseB-Scanrectangles,
asmallyellowtool-tipwillidentifykeyinformation.
–Theidenticationofthetransducerelement
–Theidenticationofthetransceiverboard
–Thecurrentsampleyouarelookingat
–Themeasuredechovalue(indB)
Procedure
1Makesurethatyouhavesufcientwaterdepthbelowthekeelbeforeyoulower
thetransducer.
2Lowerthetransducertoitsbottomposition.
3Selectthedefaultsettings.
aOntheMainmenu,selectUserSettings.
bObservetheFactorySettingslist.
cSelectthesettingyouwishtouse.
dSelectActivateSelectedSetting.
eSelectOKtoapplyyourchangesandclosetheUserSettingsdialogbox.
4Makethefollowingpreparations.
aOntheMainmenu:
•SetRangeto1500m.
bOpentheOperationmenu.
•SetTXPowertoOff.
cOpentheActivemenu.
1SetPulseTypetoCWMedium.
2SetFrequencyto14kHz.
3SetVerticalTXSectortoNarrow.
4SetNoiseFiltertoOff.
5SettheBottomFilterThresholdtoOff.
dOpentheSetupmenu.
•SelectBITEtoopentheBITE(Built-InTestEquipment)dialogbox.
Settingtowork