Simrad SP90

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Simrad SP90Figure 460 degrees vertical sliceThis vertical slice, which is presented by the white audio line in thehorizontal picture, can be selected to any bearing by the manualtraining control. The combination of the Omni mode and thevertical slice will give an optimal visualization of the catchsituation.Figure 560 degrees Omni/Vertical combination8 850-164511 / B
System descriptionIn addition to the Omni picture, the vertical slice is especiallyuseful for visualizing the vertical distribution of a school of fish.In that way, it is not necessary to go over the target to see thedistribution on the echo sounder, which often results in a spreadingof the school.When the optional stabilization system is installed in the sonar, thehorizontal and vertical beams will be stabilized electronically forroll and pitch up to approximately ±20 degrees. The stabilizationmay be switched on and off in the menu.ReceptionA great effort has been made to reduce unwanted noise to get aclean and stable echo presentation. To achieve this goal the sonarreceiver has the following filtering possibilities:FM Correlation filterIn addition to the traditional single frequency transmitting method,the SP90 sonar is equipped with an FM correlation mode.In FM mode each transmission pulse contains up to eight differentfrequencies, and the receiver makes a spectrum analysis andcompares the received echoes with the transmitted frequency code.This provides a filtering effect, which efficiently reducesinterference, noise and reverberation. In addition to giving a cleanand stable echo presentation, this will normally also increases thesonar’s detection rangeFrequency selection (Option)The optional triple- and multiple frequency selections can be usedfor suppression of interference from other sonars.However, the sound absorption in salt water increases with thefrequency, thus giving the lower frequencies a longer detectionrange.→For more information about this option and the variousfrequencies available, refer to the description on page 5.AGC (Automatic Gain Control)This control will automatically adjust the gain in the preamplifiersdepending on the strength of the incoming echo signals. Thestrength of the filter can be selected in the menu.Note that the AGC senses the echo strength in five fixed directions,and use this as a basis for adjusting all the receiver beams.850-164511 / B9
Page 1: Operator manualSimrad SP90Low frequ
Page 4 and 5: NoteSimrad AS makes every effort to
Page 6 and 7: Simrad SP90RemarksReferencesFurther
Page 8 and 9: Simrad SP90Range ..................
Page 10 and 11: Simrad SP90External Synchronizing .
Page 12 and 13: Simrad SP90Document logisticsRev Da
Page 14 and 15: Simrad SP901.2 System overviewMain
Page 16 and 17: Simrad SP90WARNINGSonar room unitsT
Page 18 and 19: Simrad SP90Scientific outputThe Sci
Page 22 and 23: Simrad SP90RCG (Reverberation Contr
Page 24 and 25: Simrad SP902 DISPLAY MODES2.1 Intro
Page 26 and 27: Simrad SP902.3 North UpWhen the Nor
Page 28 and 29: Simrad SP902.5 180° /AudioWhen the
Page 30 and 31: Simrad SP902.7 Bow Up / VerticalWhe
Page 32 and 33: Simrad SP902.9 Dual 1The Dual mode
Page 34 and 35: Simrad SP903 SONAR OPERATING PANEL3
Page 36 and 37: Simrad SP90SymbolThe Symbol functio
Page 38 and 39: Simrad SP90ModeMODEMode1Mode2Mode3M
Page 40 and 41: Simrad SP90RangeRange controls are
Page 42 and 43: Simrad SP90TrackballThe trackball c
Page 44 and 45: Simrad SP90NoteTarget trackTo track
Page 46 and 47: Simrad SP90VariousThe buttons group
Page 48 and 49: Simrad SP904.2 Start and stop proce
Page 50 and 51: Simrad SP904.3 Menu operationIntrod
Page 52 and 53: Simrad SP90Figure 10Full screen pre
Page 54 and 55: Simrad SP90Menu buttonsEach menu co
Page 56 and 57: Simrad SP90Stored parametersDefault
Page 58 and 59: Simrad SP904.5 CosmeticsThe choices
Page 60 and 61: Simrad SP90Figure 16 Sonar display
Page 62 and 63: Simrad SP90NoteHWID - This field di
Page 64 and 65: Simrad SP905 MENU DESCRIPTIONS5.1 I
Page 66 and 67: Simrad SP905.2 Menu structurePurpos
Page 68 and 69: Simrad SP90MenusThe sonar contains
Page 70 and 71:
Simrad SP90HorizontalThe Horizontal
Page 72:
Simrad SP90DisplayThe Display menu
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Simrad SP905.4 Temporary menusThe T
Page 80 and 81:
Simrad SP90Sort ModesThe Sort Modes
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Simrad SP90Make Same SizeWhen Make
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Simrad SP90To remove the ruler, cli
Page 86 and 87:
Simrad SP90GeoViewThe GeoView menu
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Simrad SP90CatchViewThe CatchView m
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Simrad SP90WarningsThe Warnings men
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Simrad SP90System alarmsThe System
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Simrad SP906 PARAMETERS6.1 About pa
Page 96 and 97:
Simrad SP90AboutThe About parameter
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Simrad SP90Audio volumeThe Audio vo
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Simrad SP90Auto -IntheAuto Search m
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Simrad SP90Colour ThresholdThe Colo
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Simrad SP90Data SourceThe Data Sour
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Simrad SP90Direction IndicatorThe D
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Simrad SP90Edit Gear (Purse)The Gea
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Simrad SP90Edit schoolThe Edit Scho
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Simrad SP90Fish alarmThe Fish Alarm
Page 114 and 115:
Simrad SP90GainThe Gain is accessed
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Simrad SP90HeadingThe Heading param
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Simrad SP90LanguageThe Language but
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Simrad SP90Message BarThe Message B
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Simrad SP90MovementsThe Movements b
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Simrad SP90Panel BacklightThe Panel
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Simrad SP90PP FilterThe PP Filter c
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Simrad SP90There is a selection bet
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Simrad SP90The SP90 sonar is design
Page 132 and 133:
Simrad SP90RCG (Reverberation Contr
Page 134 and 135:
Simrad SP90RulerTo create a ruler,
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Simrad SP90SchoolThe School button
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Simrad SP90Slant Range/True RangeTh
Page 140 and 141:
Simrad SP90Without stabilisation:St
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Simrad SP90StoreThe Store button is
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Simrad SP90TiltThe Tilt parameters
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Simrad SP90Time and DateThe Time an
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Simrad SP90Track WindowThe Track Wi
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Simrad SP90TVG (Time Variable Gain)
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Simrad SP90UnitsThe Units button is
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Simrad SP90User SettingUser Setting
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Simrad SP90Wind SpeedThe Wind Speed
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Simrad SP90Zoom ScaleThe Zoom Scale
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Simrad SP907.2 Wheelhouse unitsNote
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Simrad SP907.4 Hull unitGeneralThe
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Simrad SP90NoteCleaning the transdu
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Simrad SP90Lubrication of the Hull
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Simrad SP90E 2002 Simrad ASISBN 82-
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Simrad SP90

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