Simrad SX90 Operator manual

Operator manual

T E C H N O L O G Y F O R S U S T A I N A B L E F I S H E R I E S

www.simrad.com

Simrad SX90

Fish nding sonar

SimradSX90

Operatormanual

Thismanualprovidesyouwiththebasicinformation
requiredtooperatetheSimradSX90Fishndingsonar.
Formoredetailedinformationaboutmenusandparameters,
refertotheSimradSX90Referencemanual.

WARNING:TheSimradSX90sonarmustneverbe
poweredupwhentheshipisindrydock.Thetransducer
willbedamagedifittransmitsinopenair.Toprevent
inadvertentuseofthesonar ,pulloutthemainsplugon
theProcessorUnitwheneverthevesselisindrydock.

22January2009

307672/D

Documenthistory

KongsbergMa r it im eAS
Strandprome n a d e n5 0
P.O.Bo x1 11
N- 3 1 9 1H orten,N orway

S im ra d

Teleph one :+ 4 73 30 34 00 0
Telefa x:+ 473 30 42 98 7

contact @ s im rad.com

w w w . s im r a d .c o m

Documentnumber:307672/ISBN:978-82-8066-085-5

Rev.A25May2007

Rev.B

19October2007

SW1.4.0.Firstversionofmanual.

SW1.6.0.Newoperationalprocedurescreated.Misprints
corrected.Nonewfunctionalityimplementedonthesonar.

SW1.6.4.New“NoiseFilter”addedtotheHorizontalmenu.

Rev.C

10April2008

Smallchangestothecolourpresentations.Operationalstability
improved.

Rev.D

22January2009

SW1.6.5.Audiooutputfunctionalityimplemented.

Copyright

©2009KongsbergMaritimeAS
TheinformationcontainedinthisdocumentremainsthesolepropertyofKongsbergMaritimeAS.Nopart
ofthisdocumentmaybecopiedorreproducedinanyformorbyanymeans,andtheinformationcontained
withinitisnottobecommunicatedtoathirdparty,withoutthepriorwrittenconsentofKongsberg
MaritimeAS.Thedocument,oranypartofit,maynotbetranslatedtoanyotherlanguagewithoutthe
writtenapprovalfromKongsbergMaritimeAS.

Disclaimer

KongsbergMaritimeASendeavourstoensurethatallinformationinthisdocumentiscorrectandfairly
stated,butdoesnotacceptliabilityforanyerrorsoromissions.

Warning

Theequipmenttowhichthismanualappliesmustonlybeusedforthepurposeforwhichit
wasdesigned.Improperuseormaintenancemaycausedamagetotheequipmentand/orinjury
topersonnel.Theusermustbefamiliarwiththecontentsoftheappropriatemanualsbefore
attemptingtoinstall,operateorworkontheequipment.
KongsbergMaritimeASdisclaimsanyresponsibilityfordamageorinjurycausedbyimproper
installation,useormaintenanceoftheequipment.

Support

IfyourequiremaintenanceonyourSimradproductcontactyourlocaldealer.Youcanalsocontactususing
thefollowingaddress:s

w w . s i m r a d . c o m .Onourwebsiteyouwillalsondalistofourdealersanddistributors.

visitw

i m r a d . s u p p o r t @ s i m r a d . c o m .Ifyouneedinformationaboutourotherproducts,

Operatormanual

Tableofcontents

ABOUTTHISMANUAL.......................................................7

SIMRADSX90FISHFINDINGSONAR................................8

Importantmatters.....................................................................................................8

Basicinformation.....................................................................................................8

GETTINGSTARTED..........................................................10

Poweron/offprocedures.........................................................................................10

Howtoperformbasicoperations...........................................................................12

Echopresentationandmenu........................................................................12

Temporarymenu.........................................................................................12

Themenustructure.....................................................................................14

Controlthecursor.......................................................................................15

Menubuttons..............................................................................................15

Changingaparametervalue.........................................................................16

Visualaids..............................................................................................................17

Commoninformationonthedisplay............................................................17

Movingtheboundarylines..........................................................................17

Cosmetics...............................................................................................................19

On-linehelp............................................................................................................21

OPERATIONALPROCEDURES..........................................23

Menuprocedures....................................................................................................23

Howtohidethemenu.................................................................................23

Howtosimplifythemenu...........................................................................24

Gainadjustmentprocedures...................................................................................24

Howtoadjustthegain.................................................................................24

HowtoadjusttheAGC...............................................................................25

HowtoadjusttheRCG...............................................................................25

HowtoadjusttheTVG...............................................................................26

Howtoadjustthedisplaygain.....................................................................26

Modeprocedures....................................................................................................27

Howtoselectoperationalmode...................................................................27

HowtodenethefunctionoftheModebuttons............................................27

Howtosorttheoperationalmodes...............................................................28

Markersandsymbolsprocedures...........................................................................28

Howtoaddtargetandcirclemarkers...........................................................28

Howtoaddanownshipsymbol..................................................................29

Howtoaddagearsymbol...........................................................................29

Howtoinvestigatemarkerandsymbolinformation.......................................31

Howtodeleteamarkerorsymbol................................................................31

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3

SimradSX90

Storageprocedures.................................................................................................32

Howtostoresonarimages...........................................................................32

Howtorecallsonarimages..........................................................................33

Howtokeepsonarimages...........................................................................34

Howtodeletesonarimages.........................................................................34

Howtorenamesonarimages.......................................................................35

Howtoprintsonarimages...........................................................................36

HowtoburnsonarimagesonaCD..............................................................36

HowtocopysonarimagestoaUSBmemorystick.......................................37

Automaticsearchandtrackingprocedures............................................................37

Howtostartthehorizontalsearchprogram...................................................37

Howtostarttheverticalsearchprogram.......................................................38

Howtoenablepositiontrack.......................................................................39

Howtoenabletargettrack...........................................................................39

Howtoaddatargettrackingline..................................................................40

Usersettingprocedures..........................................................................................41

Howtosavethecurrentusersetting.............................................................41

Howtoloadausersetting...........................................................................41

Howtorenameausersetting.......................................................................41

Howtodeleteausersetting.........................................................................42

Howtoloadthefactorysettings...................................................................42

Installationofoptions.............................................................................................43

DISPLAYMODES.............................................................45

OPERATINGPANEL.........................................................48

MENUDESCRIPTIONS.....................................................50

Activemenus..........................................................................................................50

Horizontalmenu.........................................................................................51

Verticalmenu.............................................................................................53

Vertical180menu.......................................................................................54

Displaymenu.............................................................................................56

Setupmenu................................................................................................57

Objectsmenu..............................................................................................59

Temporarymenus...................................................................................................59

Cosmeticsmenu.........................................................................................59

Store/Recallmenu.......................................................................................59

SystemTestmenu.......................................................................................60

SortModesmenu........................................................................................60

Pop-upmenus.........................................................................................................60

Viewmenus............................................................................................................60

GeoViewmenu...........................................................................................61

VerticalViewmenu......................................................................................61

CatchViewmenu........................................................................................61

4

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Operatormanual

Messages................................................................................................................61

BASICTHEORY................................................................63

Settings...................................................................................................................63

WhatisTVG?............................................................................................63

WhatisAGC?............................................................................................64

WhatisthePPFilter?..................................................................................64

Aboutpulseformandlength........................................................................64

Aboutbeamwidths.....................................................................................65

AboutGain.................................................................................................65

WhatisRCG?............................................................................................66

Aboutsearchsectors...................................................................................66

Abouttilt....................................................................................................67

Noiseandreverberation..........................................................................................67

Cavitation...................................................................................................68

Reverberation.............................................................................................68

Blocking....................................................................................................69

Checkthenoiseyourself!............................................................................69

Layersanddeections............................................................................................70

Temperatureandsalinitylayers....................................................................70

Deections.................................................................................................70

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5

SimradSX90

6

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ABOUTTHISMANUAL

Aboutthismanual

Purpose

Thepurposeofthisoperatormanualistopresentthedescriptions
andproceduresrequiredtooperatetheSimradSX90Fishnding
sonarsysteminasafeandefcientmanner.Itisnotpossibleto
describeallfunctionsandparametersindetail.Itisthereforealso
importantthatyoustudytheotherdocumentsthatareprovided
withyoursonar.

References

Refertothefollowingmanualsforadditionalinformation
abouttheSimradSX90sonarsystem.Ordernumbersin
brackets.Alldocumentscanbedownloadedfromourwebsite

t t p : / / w w w . s i m r a d . c o m .

h

•SimradSX90InstallationManual,English[307531]

•SimradSX90OperatorManual,English[307672]

•SimradSX90OperatorManual,Norwegian[315143]

•SimradSX90ReferenceManual,English[307670]

307672/D

7

SimradSX90

SIMRADSX90FISHFINDINGSONAR

StudythischaptertofamiliarizeyourselfwiththeSimradSX90
Fishndingsonarsystem.

Importantmatters

Aswithalladvancedinstruments,thereareafewimportant
mattersabouttheSX90thatyoumustremember.

Beforeyouswitchonthesonar

Whenyoupowerupthesonar,thetransducerislowereddown
belowthevessel’shull.Makesurethatyouhavesufcientwater
depthbeforeyoudothis!

Whenthesonarisnotinuse

Toprotectthesonarwhenitisnotinuse,westronglyadviceyou
tohoistthetransducer,eventhoughyoumaynotswitchoffthe
power.Innarroworshallowwatersthisisveryimportant,since
youmay-inworstcase-runthetransducerintothebottom.
Thiswilldamagethetransducerandthetransducershaft,and
extensiverepairisrequired.

Whenyoudockthevessel

Itisveryimportantthatthesonarsystemremainss
whenthevesselisindrydock.Ifthetransducerissubjected
totransmitpowerwhenitisinopenair,itwillbedamaged.
Asasafeguardingmeasure,youcanremovethepowerfuses
onthesonarsystembeforethevesselisdocked.Asanextra
safeguardingmeasure,thesonarisbydefaultpoweredupwith
thetransmitpowerswitchedoff.

Ifsomethingbreaksdown

Ifyouthinkthatsomethinghasbeendamagedonthesonar,
contactyourlocaldealerforadvice.

w i t c h e d o f f

Basicinformation

TheSimradSX90Fishndingsonarisalongrange
omnidirectionallowfrequencysonar.Itisdesignedformedium
andlargesizedshingvessels,preferablyforpurseseiners,butit
isalsowellsuitablefortrawlers.Thesonarallowsyoutochoose
anoperationalfrequencybetween20to30kHz(in1kHzsteps),
andthebeamcanbeelectronicallytiltedfrom+10to–60degrees.

Greatemphasishasbeenplacedongivingthebestpossible
presentationsonahighresolutioncolourdisplay.TheProcessor
UnitiscontrolledbyMicrosoft’sWindowsXP®operating
system,whichresultinaexiblechoiceofdisplaymodesfora
largerangeofuserapplications.

8

307672/D

SimradSX90Fishndingsonar

Thesignalprocessingandbeamformingisperformedinafast
digitalsignalprocessingsystemusingthefulldynamicrange
ofthesignals.Inadditiontothetraditionalsinglefrequency
transceiversystem,theSimradSX90Fishndingsonarcontains
anadvancedfrequencymodulatedltersystem(FM).

Thecylindricalmulti-elementtransducerallowsthe
omnidirectionalsonarbeamtobetiltedelectronicallydownto

-60degrees.Thisallowsyoutoautomaticallytrackschoolsof
sh,andtoobservethewholewatervolumearoundthevessel.
Astabilisingsystemisincludedforelectronicpitchandroll
compensation.

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9

SimradSX90

POWER

Down

GETTINGSTARTED

Poweron/offprocedures

Pleasendthebasicinformationrequiredtogetyoustartedup.

Theseproceduresexplainhowtoswitchthesonarsystemon
andoff.

Howtoswitchonthesonar

1PressthePowerbuttononthecolourdisplaymonitor.

2PressthePowerbuttonontheOperatingPanel,andkeepit

depressedforapproximatelytwoseconds.

•Thegreenlampontherightsideofthebuttonwillash
toindicatedthatthepowerhasbeenswitchedon,andthat
thecomputerisstartingup.

•AfterafewsecondstheProcessorUnitstartsup.Once
upandrunning,itautomaticallystartstheBeamformer
Unit.Y oucanobservetheprogressontheTRUOn/Off
dialogboxesthatappear.

•Afterashortperiod(approximately2minutes)youwill
seethesonarpictureonthedisplay.

3Checkthatthewaterdepthbeneaththekeelissufcientto

lowerthetransducer.

4PresstheDownbuttononthecontrolpaneltolowerthe

transducer.

•Thegreenlampnexttothebuttonwillash,andan
audiblesignalindicatesthatthetransducermoves
downwards.

•Whenthebottompositionhasbeenreached,thelamp
willbelitcontinuously ,theaudiblesignalstops,and
thetopbuttonintheStatusparameterdialogshows

Transducer:Down.

•Bydefaultthetransmitpowerisdisabledwhenthe
sonarispoweredup.Thisisforsafetyreasons.Onthe

Horizontalmenu,youwillseethattheTXpowerbutton

ashestoremindyouofthis.

5ClicktheTXpowertoselectFull.

10

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6Pleasenote:

Up

POWER

•IfthesonarsystemhasbeendisconnectedfromAC
power,theProcessorandBeamformerUnitsmustbe
startedmanually .Removetheprotectivepanelsonthe
frontpanels(abovethefans),andusetheon/offswitch.

•Thesonarwillstartupevenifcircuitboardsinthe
TransceiverUnitismalfunctioning.Thesonarwillthen
needmoretimetoperformthestart-upprocedure,and
ashortmessagewillbeprovidedabovetheprogress
bar:Systemreadyforping,butwithreducednumberof
TRX32.Afterthesonarhasstartedup,theTRUOn/Off
dialogcanbeopenedbyclickingtheTRUOn/Offbutton
ontheT estmenu.ClicktheAdvancedbuttontoobtain
moreinformation.

Howtoswitchoffthesonar

Gettingstarted

1PresstheUpbuttonontheOperatingPanel.

•Thegreenlampnexttothebuttonwillash,andan
audiblesignalindicatesthatthetransducerishoisted.

•Whentheupperpositionhasbeenreached,thelampwill
illuminatecontinuously,theaudiblesignalstops,andthe
upperbuttonintheStatusmenushowsTransducer:UP.

2PressthePowerbuttonontheOperatingPanel,andkeepit

depressedforapproximatelytwoseconds.

•Thesonarisswitchedoff.Notethatyoumustn o t usethe
on/offswitchontheProcessorandBeamformerUnits,
onlythisPowerbuttonontheOperatingPanel.

3Switchoffthedisplaymonitor.

4Pleasenote:

•Ifthesonarisswitchedoffuncontrolledwiththe
transducerinitsloweredposition,thetransducermustbe
raisedmanuallybymeansofthehoist/lowerswitchinthe
MotorControlUnit,orwiththehandcrankprovided.

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11

SimradSX90

(CD015008A)

A

B

Howtoperformbasicoperations

Observethisbriefproceduretofamiliarizeyourselfwiththe
basicoperationswithechopresentationsandmenuoperations.

Echopresentationandmenu

1Oncethesonarsystemisupandrunning,observethelayout

ofthedisplaypresentation:

•Onther

•Onthel

i g h t side,observethemenusystem(A).

e f t side,observethesonarechopresentation(B).

2OntheOperatingPanel,presstheMenubutton(located

abovethelargetrackball).

3Onthedisplay,observethatthemenudisappears.

4OntheOperatingPanel,presstheMenubuttononemore

time,andobservethatthemenureappears.

Figure1Basicmenu(A)andechopresentation(B)

Whenthemenuisremovedtheechopresentationisextendedto
covertheentiredisplay.

Temporarymenu

1OntheOperatingPanel,presstheMenubuttontoremove

themenu.

2Onthedisplay,observethatthemenudisappears.

3Usethetrackball,andmovethecursorovertotheleftside

ofthedisplay.

12

307672/D

Gettingstarted

(CD015008C)

A

4Observethatthemenureappearsonthelefthandside,and

thattheremainingechopresentationareaisn

o t re-scaled.

5Movethecursortowardstherightsideofthedisplayagain,

andobservethatthetemporarymenudisappears.

6OntheOperatingPanel,presstheMenubuttononemore

time,andobservethatthemenureappearsontherighthand
side.

Figure2T emporarymenu(A)appearance

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13

SimradSX90

(CD015009A)

C

D

E

F

A

B

Themenustructure

Themenuontherighthandsideofthesonardisplaycontains
severaldifferentbuttons,tabsandparameterdialogs.

Thefollowingelementsareinuseonthemenu:

ASonartype:Thiseldsimplystatesthe

nameofthesonar.

BMode:Clickheretochangedisplaymode.

Ifyouclickonthemiddleofthebutton
youwillopenadedicatedmenuformode
selection.Ifyouclickontherightorleft
sideofthebuttonyoucanscrollthrough
theavailablemodes.

CTab:Clickonatabtobringforwardthe

menu.Inthisexample,whenyouclickon
theDisplaytab,youwillopentheDisplay
menu.

DMenu:Thisisthebodyofthemenu.Each

menuholdsoneormorebuttons.

EButton:Clickonabuttontochangethe

applicableparameter.Ifyouclickonthe
middleofthebuttonyouwillnormally
openadedicatedparameterdialogfor
parameterselection.Ifyouclickonthe
rightorleftsideofthebuttonyoucan
scrollthroughtheavailablechoices.

FParameterdialog:Whenyouclicka

button,therelevantparameterdialogopens
atthebottomofthemenu.Eachparameter
dialogholdsoneormorebuttonsormenus.
Tocloseaparameterdialog,clickthe

Closebutton.MostdialogsprovideaHelp

buttonforaccesstotheon-linehelp.In
thisexampleyoucanseetheStatusdialog,
whichisreplacedwhenaparameterdialog
isopened.

14

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Controlthecursor

CURSOR

SONAROPERA TINGPANEL

Menu

Select

View

Object

(CD015022L)

A

B

(C )D015010A

+

-

BA

C

Gettingstarted

Operatethetrackball(A)ontheOperating
Panel.

Observethatthecursormovesonthesonar
display,andthatitchangesitsformdepending
onitslocation.

ObservethelocationoftheSelectbutton(B).
Pressthisbuttontomakeaselection.

TheViewandObjectbuttonsabovethetrackball
areusedtoopenspecicmenus.

(A)Clickheretodecrease
theparametervalue

(B)Clickheretoincrease
theparametervalue

(C)Clickheretoopenthe
parameterdialog.

Menubuttons

Eachmenucontainsseveralbuttons.Eachbuttonshowsboththe
functionandthecurrentparameter.Themajorityofthebuttons
ineachmenueldhavethreefunctions:

•Youcanselectalowerparametervalue.

•Youcanselectahigherparametervalue.

•Youcanopentheapplicableparameterdialog.

UsethetrackballontheOperatingPanel,andpositionthe
cursoroverthel
theshapeofthecursorchangestoa“minus”sign.This
meansthatthevalueoftheparameterwilldecreasewhen
youpresstheSelectbuttonontheOperatingPanel.

Positionthecursoroverther
Observethattheshapeofthecursorchangestoa“plus”
sign.Thismeansthatthevalueoftheparameterwill
increasewhenyoupresstheSelectbutton.

Positionthecursoronthecentreofthemenubutton(C).
Observethattheshapeofthecursorchangestoa“menu”
symbol.Thismeansthattheapplicableparameterdialog
willopenwhenyoupresstheSelectbutton.Thedialog
appearsinthelowerpartofthemenueld.

e f t sideofthebutton(A).Observethat

i g h t sideofthebutton(B).

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15

SimradSX90

(C )D015010B

B

C

D

A

Changingaparametervalue

Observethisgenericproceduretochangeaparametervalue.
Onceyouhavegainedmoreexperience,andhavebecomemore
familiarwiththeavailableoptions,youwillselecttheparameters
directlyfromthebuttons.

Figure3Changingaparametervalue

1Movethecursortothemiddleofthemenubutton(A).

Observethatthecursorchangesitsshapetoamenusymbol.

2PresstheSelectbuttonontheOperatingPanel.

3Observethatthecorrespondingparameterdialog(B)opens

atthebottomofthemenu.

4Movethecursordowntothedialog,positionthecursor

overtherequestedparametervalue(C),andpresstheSelect
buttonagain.

5Observethatthechangeyouhaverequestedtakesimmediate

effectonthesonar.

•Thismakesiteasytotesttheeffectofeachparameter
setting.Notehoweverthattransceiverrelatedparameters
willrstbeoperationalinthenextping.

6MovethecursordowntotheClosebutton(D),andpress

theSelectbuttonagain.

7Observethattheparameterdialogcloses.

Note

Inthismanual,thephrase“Clickthebutton”meansthatyou
shallpositionthecursoroverthemenubutton,andthenpress
theSelectbuttonontheOperatingPanel.

Certainparametersettingsareidentiedwithanasterisk(*).This
symbolindicatesthedefaultsettingknowntoperformwellunder
normalconditions.Ifyouget“lost“intheparametersettings,the

16

307672/D

Visualaids

AB

C

D

E

F

Gettingstarted

Defaultsettingsfunctionwillbringupthesenormalparameters.

TheDefaultsettingfunctionisavailableontheSetupmenu,anda
dedicatedparameterdialogisused.

IntheSimradSX90sonar,allparametersarestored.This
functionwillcausethesonartorememberalltheselected
parametersettings,evenwhenthesonarisswitchedoff.

Thesonardisplaycontainsnotonlythesonarpictureandthe
menusystem,butalsootherinformationthatisusefulfor
efcientoperation.

Commoninformationonthedisplay

Innearlyalldisplaymodes,thefollowinginformationis
provided.

Figure4Visualaids

ACurrentgain.

BCurrentrange.

CThecursor’scurrentgeographicalposition(providedthat

thenecessarysensorisconnectedtothesonar).

DThecursor’scurrentbearingrelativetothevesselortrue

north(providedthatthenecessarysensorisconnectedto
thesonar).

ECurrenttilt.

FCurrentrangeanddepthtothetarget.

Movingtheboundarylines

Inmostdisplaymodeswithmultipleviews,thesizeofeachview
caneasilybemodiedbymovingtheboundarylinebetweenthe
views.Observethefollowingprocedure:

1Placethecursorontheboundaryline.Observethatit

changesitsshapetoadoublearrow(↔).

307672/D

2Pressa

n d h o l d theSelectbuttonontheOperatingPanel.

17

SimradSX90

3MovethecursorwiththeSelectbuttondepressed.Observe

thattheboundarylineismoved.

4ReleasetheSelectbutton.

5Observethattheboundarylinehasbeenrelocatedtothenew

cursorposition.

18

307672/D

Gettingstarted

(CD015013B)

N

S

W

E

100

200

300

400

A

C

B

Cosmetics

ThechoicesintheCosmeticsmenuallowsyoutoenableor
disablearangeofvisualaidsinthesonarpicture.

1ClicktheDisplaytabtoopentheDisplaymenu.

2ClicktheCosmeticsbuttontoopentheCosmeticsmenu.

3Observearangeofparametersavailabletoprovideyouwith

additionalinformationonthesonarpicture.

Figure5BearingCard(A),WindMarker(B)andDistance
Rings(C)

TheBearingCard(A)showsthecurrentbearingrelativetothe
vessel.Themarkersareshownasshortwhitelinesforevery10th
degreealongtheoutercircleofthesonarview.

TheWindMarker(B)isshownasanarrowdrawnfromthe
Compasscardpointingtowardsthecentreofthedisplay .Ifa
windsensorisconnectedtothesonar,itwillautomaticallyshow
thecurrentwinddirection.Otherwise,thewinddirectionmaybe
enteredmanually.Thearrowhasaxedlength,itisnotscaled
accordingtothecurrentwindspeed.

TheDistanceRings(C)areshownasdottedrings,eachwitha
rangeread-outonthelefthandsideofthedisplaycentre.

19

307672/D

SimradSX90

(CD015013C)

N

S

W

E

1123m

100m

200m

300m

400m

E

E

F

D

Figure6V ariableRangeMarker(D),CompassCard(E)and
VerticalRing(F)

TheVariableRangeMarker(VRM)(D)consistsofanadjustable
rangeringwithrangeread-out.Itcanbeusedforanytypeof
distancemarkingrelativetothevessel.T oadjustthemarker,
locatethecursoronthemarkerring,presstheSelectonthe
OperatingPanel,andmovethecursorwiththeSelectbutton
depressed.Whenthebuttonisreleased,thevariablerange
markerradiuswillbemovedtothenewcursorposition.

TheCompassCard(E)isshownasshortyellowlinesfor
every10thdegreealongtheoutermostcircleofthesonarview.
Atrianglesymbolindicateseach90thdegree.Ithaslabels
indicatingNorth,East,SouthandWest.Itisupdatedwhenthe
headingofownshiphaschangedmorethan1degree.

TheV erticalRing(F)showstheselectedrangeofthevertical
sliceasafullcircleinthehorizontalpresentation.Thisisan
indicationofwhichdistanceatargetshouldbepresentedinthe
verticalview.TheVerticalRingwillonlybevisibleinthose
modesthatsupportaverticalslice.

20

307672/D

Figure7DepthDividers(G),BowMarker(H)andMinute

(CD015013D)

N

S

W

E

100m

200m

300m

400m

G

H

I

Markers(I)

Gettingstarted

TheDepthDividers(G)arehorizontaldottedlinesusedto
visualizethedepthstepsintheverticalslices.

TheMinuteMarkers(H)areshownassmallcirclesonthetrack
historyoftheship.

TheBowMarker(I)isheadingmarker.Itisadottedlinedrawn

On-linehelp

fromthebowofyourownship.

TheSimradSX90sonarisequippedwithacomprehensive
on-linehelpsystem.Helpisprovidedintwolevels:On-lineand
Free.Itisavailablefromalltheparameterdialogsandmenusby
clickingtheHelpbutton.

Oncepressed,thersthelptextwillappearinthebottomofthe
menu.ThisistheOn-linetext.Itisshort,contextsensitive,and
designednottointerrupttheoperationofthesonar.Toclosethe

Helpdialog,clicktheClosebutton.

Toaccessmoredetailedinformation,clicktheFreebutton.
Thiswillopenthecompleteinteractivemanual.Itcontainsthe
sameinformationastheprintedSX90ReferenceManual,but

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21

SimradSX90

theinformationisaccessedusingthemenuonthelefthandside
andinteractivelinksthroughoutthedocument.ClickFreeinthe
bottomleftcornertoreturntothesmallon-linedialog,orClose
toexittheinteractivemanual.

Note

IfyouclickClosebuttontoclosethelargeinteractivemanual
(Free),thismanualwillautomaticallyreappearthenexttime
youclickaHelpbutton.

22

307672/D

OPERATIONALPROCEDURES

Menu

Operationalprocedures

Thischapterpresentshowtoperformthemostcommon
proceduresontheSX90sonar.Notethatthepoweron/off
procedureshavebeenpreviouslyexplained.

Topics

•Poweron/offproceduresonpage10

•Menuproceduresonpage23

•Gainadjustmentproceduresonpage24

•Modeproceduresonpage27

•Markersandsymbolsproceduresonpage28

•Storageproceduresonpage32

•Automaticsearchandtrackingproceduresonpage37

•Usersettingproceduresonpage41

•Installationofoptionsonpage43

Menuprocedures

Thissectionprovidesgeneralproceduresformenuhandling.

Howtohidethemenu

Themenuisnormallylocatedontherighthandsideofthe
display,butifyoudon’tneedit,youcaneasilyremoveit.

Procedure

1PresstheMenubuttonontheOperatingPanel.

TheMenubuttonactsasatoggleswitch.Pressonceto
removethemenu,andonemoretimetoretrieveit.

Alternativemethod

1ClicktheDisplaytabonthesonarmenu.

2ClicktheFullscreen:Offbutton.

Howtorecallthemenu

1Movethecursortothefarleftorfarrightsideofthedisplay

2Observethatthemenusystemappears.Itcanbeshownon

eitherside,andwillnotaffectthesonarpicture.

307672/D

23

SimradSX90

Gain

H-

Gain

H+

Gain

V-

Gain

V+

3OpentheDisplaymenu,andclickFullscreen:On.

Howtosimplifythemenu

Youcaneasilyreducethenumberofbuttonsonthesonarmenus.
Thiscanbeusefulifyouneverusethem.

Procedure

1ClicktheDisplaytabtoopentheDisplaymenu.

2ClicktheMenubutton.

3Intheparameterdialog,selectthemenulevelyouwishto

use.

4ClickClosetoexit.

Gainadjustmentprocedures

Thissectionexplainshowtocontrolthemanualandautomatic
gainsettingsontheSX90sonar.

Howtoadjustthegain

Youcanadjustthesonargainbymeansofthecontrolbuttons
ontheOperatingPanel,orbyusingtheGainbuttononthe

HorizontalandV erticalmenus.

Procedure

1OntheOperatingPanel,locatetheGaineld.

2PresstheGainH+orGainH-buttonstoincreaseordecrease

thegaininthehorizontalpresentation.

3PresstheGainV+orGainV-buttonstoincreaseordecrease

thegainintheverticalpresentation.

Alternativemethod

1Inthesonar’smenusystem,clicktheGainbuttononthe

HorizontalorVerticalmenustoadjustthegain.

24

307672/D

Operationalprocedures

ClicktheleftorrightsideoftheGainbuttontodecreaseor
increasethegain,orthemiddleofthebuttontoopenthe
parameterdialog.

Formoreinformationaboutthisparameter,seeAboutGainon
page65.

HowtoadjusttheAGC

TheAGC(AutomaticGainControl)adjuststhegaininthesonar
preampliercircuitry.Thisgaindependsonthestrengthofthe
incomingechosignal.Theresultisaltereffect,reducingnoise
andreverberation.TheAGChasfourdifferentsettings.

Procedure

1ClicktheHorizontalorVerticaltabtoopentherespective

menu.

2ClicktheAGCbuttontoadjusttheparameter.

ClicktheleftorrightsideoftheAGCbuttontodecrease
orincreasethesetting,orthemiddleofthebuttontoopen
theparameterdialog.

Formoreinformationaboutthisparameter,seeWhatisAGC?
onpage64.

HowtoadjusttheRCG

TheRCG(ReverberationControlledGain)regulatesthereceiver
gainindividuallyforeachofthereceivingbeams.Ifyouselect
WeakandMedium,echoesfrompropellers,surfaceandbottom
reverberationswillbesuppressed,whiletargetechoeswill
remaininview.IfyouselectStrong,aspeciallterremovesthe
bottom,whileechoesonthebottomwillbepresented.

Note

Scatteredshcanbeperceivedasreverberation.TheRCG
functionmustthereforebeusedwithcareifyouwishtond
scatteredschools.

Procedure

1ClicktheHorizontalorVerticaltabtoopentherespective

menu.

2ClicktheRCGbuttontoadjusttheparameter.

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25

SimradSX90

ClicktheleftorrightsideoftheRCGbuttontodecrease
orincreasethesetting,orthemiddleofthebuttontoopen
theparameterdialog.

Formoreinformationaboutthisparameter,seeWhatisRCG?
onpage66.

HowtoadjusttheTVG

TheTVG(TimeV ariedGain)controlsthegaininthesignal
amplier.Thegainisweakestjustaftertheping,andincreases
inaccordancewithtime(andthereforerange).Anumberof
standardgaincurvesareavailable,aswellasOff.ByusingTVG,
thegainisadjustedinsuchwaythataschoolofshwillbe
presentedwithapproximatelythesamestrengthonthescreenin
anypositioninsidetheregulatedTVGrangeof1000meters.

Procedure

1ClicktheHorizontalorVerticaltabtoopentherespective

menu.

2ClickTVGtoadjusttheparameter.

ClicktheleftorrightsideoftheTVGbuttontochoosea
setting,orthemiddleofthebuttontoopentheparameter
dialog.

Formoreinformationaboutthisparameter,seeWhatisTVG?
onpage63.

Howtoadjustthedisplaygain

TheDisplayGainincreasesordecreasesthestrengthoftheecho
presentationonthedisplay.

Procedure

1ClicktheDisplaytabtoopentheDisplaymenu.

2ClicktheDisplaygainbuttontoadjusttheparameter.

ClicktheleftorrightsideoftheDisplaygainbuttonto
decreaseorincreasethesetting,orthemiddleofthebutton
toopentheparameterdialog.

26

307672/D

Operationalprocedures

Mode

1

Modeprocedures

Thissectionexplainshowtochooseoperationalmodes,andhow
tosetuptheModebuttonsontheSX90OperatingUnit.

Howtoselectoperationalmode

YourSX90sonarisequippedwithseveraloperationalmodes.
Observetheseprocedurestochoosethemodebesttforyour
currentoperations.

Procedure

1LocatetheModeeldonyourOperatingPanel

2Pressoneofthefourbuttonstochoosemode.

Alternativemethod

1LocatetheModebuttononthetopofeachmenu.

2ClicktheModebuttontochooseoperationalmode.

ClicktheleftorrightsideoftheModebuttontochoose
mode,orthemiddleofthebuttontoopentheparameter
dialog.

HowtodenethefunctionoftheMode
buttons

TheModebuttonsonyourSX90OperatingPanelcaneither
beusedtoselectoperationalmode,orusersettings.Toswitch
betweentheseoptions,observetheprocedure.

Procedure

1ClicktheDisplaytabtoopentheDisplaymenu.

2ClicktheModeButtons:buttontoselectModeorUser.

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SimradSX90

Howtosorttheoperationalmodes

YourSX90sonarprovidesyouwithaselectionofoperational
modes.Thislistofmodescanbesortedtosuityourpreferences.
Thetopfourmodesonyourlistcanbeaccessedbypressingthe
fourModebuttonsontheOperatingPanel.Tosortthemodes,
observetheprocedure.

Procedure

1ClicktheSetuptabtoopentheSetupmenu.

2ClicktheSortModesbuttontoopentheSortModesmenu.

•TheSortModesmenulistsalltheavailablemodesintheir
currentorder.

3Clickoneoftheoperationalmodes.

•ObservethattheMovedownand/orMoveupbuttonsat
thebottomofthemenuareactivated.

Markersandsymbolsprocedures

4ClicktheMovedownorMoveupbuttontomovethechosen

operationalmodedownorupthelist.

5Whenthelisthasbeenarrangedintheorderyouwishto

keep,clickApply.

•Thecurrentorderissavedautomatically.

6ClickClosetoexit.

Thissectionexplainshowtoadd,investigateanddeletesymbols
andmarkersontheSX90sonarpresentation.

Howtoaddtargetandcirclemarkers

Observethefollowingproceduretoaddatargetorcirclemarker
tothesonarpresentation.

Procedure

1Movethecursoronthesonarpicture,andpositionit

whereveryouwishtoplacethemarker.

2PresstherequestedmarkerbuttonintheSymboleldonthe

OperatingPaneltoplacethemarker.

AboutTargetmarkers

ThisbuttonplacesaTargetmarkeratthecursorlocation.

28

307672/D

Operationalprocedures

Atriangularsymbolwithacorrespondingnumberwillappearon
thescreenoverthetarget,whilepositiondataforthedened
markerisdisplayedintheObjectsmenu.

•Thesystemcontinuestotrackthemarkersevenwhenoutside
thesonarrange.

•TheTargetmarkerbuttoncanalsobeusedformanualtarget
trackingasthesystemisdesignedtocalculatethespeed,
courseanddistancebetweenthelasttwochosentargets.

•Thetargetmarkerdataisdisplayedinwhiteguresfor15
minutesinthelowerrighthandcornerofthehorizontal
presentation.

•Thisfunctionisalsoaneffectivemethodfordeterminingthe
distancebetweentwoselectedpointsonthescreen.

AboutCirclemarkers

ThisbuttonplacesaCirclemarkeratthecursorlocation.

Acircularsymbolwillappearonthescreenatthechosen
location.Thesizeofthesymbolisequaltothatofthepurse
seineselected.Thismarkermaybeusedtoestimatethesizeofa
schoolofshorasanindicationofthesizeofthepurseseine.

Howtoaddanownshipsymbol

Observethefollowingproceduretoaddanownshipsymbolto
thesonarpresentation.

Procedure

1PresstheOwnshipbuttonintheSymboleldonthe

OperatingPanel.

ThesquareOwnshipsymbolisplacedonthescreenatthe
vessel’scurrentlocation.

Howtoaddagearsymbol

Observethefollowingproceduretoaddagearsymboltothe
sonarpresentation.

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29

SimradSX90

Procedure

1PresstheGearbuttonintheSymboleldontheOperating

Panel.

Thegearsymbolwilleitherbeapurseseinecircleoratrawl
symboldependingontheparameterchosenbytheGear
buttonintheSetupmenu.Theselectedgearsymbolwill
bedisplayedinyellow.

Howtousetheseinecircle

1PresstheGearbuttonontheOperatingPanel.

Thepurseseinecirclewillappearontheforwardendofthe
shipsymbolonthecorrespondingsideofthevesselselected
intheSetupmenu.Thecirclewillfollowthevessel’s
movements.

2Atthemomenttheseineisshot,presstheGearbuttonagain.

Thepurseseinecirclewillremainstationaryandindicate
theidealpathforsettingtheseine.Threesquaresymbolson
theship’scourselineindicatethe:shooting,onehalf,and
theendoftheseinepositions.Threedifferentnetscanbe
denedifyouclickGearontheSetupmenu.

3PresstheGearbuttontodeletethepurseseinecircle.

Howtousethetrawlsymbol

Thisisausefulaidinprovidinganoverviewofthetrawl
operation.Trawldatacanbesetmanuallyusingthemenuor
automaticallybyinterfacingaSimradFStrawlsonarorSimrad
ITItrawlmonitoringsystemwiththesonar.

Inthemanualmodethetrawlsymbolwillbedisplayedwith
theselectedsize,depthanddistance.WhentheFS70,FS900
orFS3000trawlsonarisconnected,thetrawlsymbolwill
automaticallybedisplayedwiththecorrectdepthinthevertical
modes.WhentheITItrawlsystemisconnected,thetrawlsymbol
willbedisplayedwiththecorrectdistance,bearinganddepth.
Ifrequired,thetrawlopening,ambientwatertemperature,and
trawl-llingindicatormayalsobedisplayed.Thisisassumed
thatthepropersensorsareconnectedtotheITIsystem.

Howtodeneandchangethegearproperties

ThegearpropertiesarechangedbymeansoftheGearbutton
ontheSetupmenu.

1ClickthemiddleoftheGearbuttontoopentheparameter

dialog.

30

307672/D

Operationalprocedures

2Clickonceonthegearyouwishtouse.

3ClicktheEditbuttonatthebottomoftheGearparameter

dialog.

4Foreachofthegearparametersavailable,selectthe

requestedvalue.

5ClickClosewhenalltheparametershavebeendened.

Howtoinvestigatemarkerandsymbol information

Observethefollowingproceduretoreadtheinformationrelated
toeachmarkerorsymbol.

Procedure

1ClicktheObjectstabtoopenthemenu.

2Observethatallthecurrentobjects(markersandsymbols)

arelisted.

•TheObjectsmenuisshowninalldisplaymodes,and
displaystherange(R),bearing(B)anddepth(D)toall
selectedobjects.

•Theidentication(ID)abbreviationsforthedifferent
objectsare:

–A T:Automatictargettrackmarker

–Ci:Circlemarker

–M:Targetmarker

–OS:OwnShipmarker

–PT:Positiontrackmarker

–F:Radiobuoymarker

•ThenumberbehindtheIDabbreviationreferstothe
samenumberontheobjectinthesonarpresentation.The
“P”aftertheAutomatictargettrackmarkerindicatesthe
prioritylevelwheretheaudiochannelislockedtothe
target.

•WhenyouselectaTargetmarker,Automatictargettrack

markeroraRadiobuoymarkerinthelist,adottedbearing

linefromthevesseltothemarkerwillbeshown.

3Toretrievetheinformationaboutanobject,clicktheobject

abbreviationinthelist.

4Observethatadedicatedparameterdialogwithallknown

objectinformationappearsatthebottomofthemenu.

Howtodeleteamarkerorsymbol

Observethefollowingprocedurestodeleteamarkerorobject
fromthesonarpresentation.

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31

SimradSX90

Procedure

1ClicktheObjectstabtoopenthemenu.

2Clickontheobjectthatyouwishtodelete.

3ClicktheDeletebuttonatthebottomofthelist.

Alternativemethod

1Placethecursorontheobject.

2PresstheObjectbuttonontheOperatingPanel(orther

i g h t

mousebutton)

3ClickDeleteonthemenu.

Storageprocedures

Thissectionexplainshowtostoreandrecallsonarimageson
theSX90.

Howtostoresonarimages

Observethefollowingproceduretostoreoneormoresonar
images.

NotethattheRecordbuttonontheOperatingPanelcanbe
pressedatanytimetostartrecording.Itisnotnecessaryto
opentheStore/Recallmenurst.Whenthisbuttonisused,the
currentlyselectedrecordingmodewillbeused.

Preparetherecordingparameters

1ClicktheSetuptabtoopenthemenu.

2ClicktheStore/RecallbuttontoopentheStore/Recallmenu.

3ClicktheStoremodebuttontochooserecordingmode.

ClicktheleftsideoftheStoremodebuttontoscrolldown
thelistofoptions.Clickthemiddleofthebuttontoopenthe
parameterdialogfordirectaccesstotherequestedsetting,
orclicktherightsideofthebuttontoscrollupthelistof
options.

4Recordtheimages.

5ClicktheClosebuttontoclosetheStore/Recallmenu.

32

307672/D

Operationalprocedures

Oncetherecordinghasbeenactivated,thesonarwillsave
sonarimagesasdenedbytheStoremodesetting.Each
imageisaddedtothelistoftemporaryleslocatedbelow
thebuttons.Eachlenamereectsthedateandtime.

Recordasingleimage

1Either:

AClicktheStorebutton,or

BPresstheRecordbuttonontheOperatingPanel

2Observethatthemessageeldbelowthemenudisplaysthe

imagelenameonagreenbackground.

Recordmultipleimages

1Tostartrecording:

AClicktheStorebutton,or

BPresstheRecordbuttonontheOperatingPanel

2Observethatthemessageeldbelowthemenudisplaysthe

imagelenamesonagreenbackground.

3Tostoprecording:

AClicktheStorebutton,or

BPresstheRecordbuttonontheOperatingPanel

Howtorecallsonarimages

Observethefollowingproceduretorecallsonarimages.

Preparations

1ClicktheSetuptabtoopenthemenu.

2ClicktheStore/RecallbuttontoopentheStore/Recallmenu.

3ObservethelistofimagesintheStore/Recallmenu.

Torecallasingleimage

1ClicktheRecallmodebutton,andselectSingleshot.

2Clickoneoftheimagestoselectit.

3ClicktheRecallbuttontoviewtheimage.

307672/D

33

SimradSX90

Thechosenimagewillbedisplayed.Thephrase“RECALL”
isusedtoindicatethatarecalledimagehasreplacedthe
sonarimage.

4ClicktheObjectbuttonontheOperatingPaneltorestore

normaloperation.

Torecallseveralimages

1ClicktheRecallmodebutton,andselecthowlongtimeyou

wishtoseeeachimage.

2Toselectanumberofimagesles,clickthetople,then

holdtheSelectbuttonontheOperatingPaneldepressed
whileyoumovethecursordowntoselecttheotherlesin
theeld.

3ClicktheRecallbuttontoviewtheimages.

•Thechosenimageswillbedisplayed,onebyone.The
phrase“RECALL”isusedtoindicatethatarecalled
imagehasreplacedthesonarimage.

•Whenallimageshasbeendisplayed,thesonarwill
automaticallyresumenormaloperation.

Howtokeepsonarimages

Whenyoustorenewsonarimages,theywillbydefaultbeadded
tothelistofT emporaryles.Thislistwillcontainmaximum100
images,andwhenthislimithasbeenreached,theoldestleswill
beautomaticallyremoved.Observethefollowingprocedureto
keepselectedsonarimagesfrombeingdeleted.

1ClicktheSetuptabtoopenthemenu.

2ClicktheStore/RecallbuttontoopentheStore/Recallmenu.

3ObservethelistofimagesintheStore/Recallmenu.There

aretwolists,onefortemporaryles,andoneforpermanent.

4ClickoneoftheimagesintheTemporaryleseldtoselect

it.

5ClickthearrowonthetopofthePermanentleseldto

movetheselectedimagedown.

ThePermanentleslistdoesnotlimitthenumberoflesitcan
contain.Thisishoweverlimitedbythestoragecapacityofthe
harddiskintheProcessorUnit.

Howtodeletesonarimages

Observethefollowingproceduretodeleteselectedsonarimages.

34

307672/D

Operationalprocedures

1ClicktheSetuptabtoopenthemenu.

2ClicktheStore/RecallbuttontoopentheStore/Recallmenu.

3ObservethelistofimagesintheStore/Recallmenu.

4Clickoneoftheimagestoselectit.

5ClicktheDeletebuttonatthebottomoftheleeldsto

deletetheselectedimage.

Howtorenamesonarimages

Observethefollowingproceduretoprintselectedsonarimages.

1ClicktheSetuptabtoopenthemenu.

2ClicktheStore/RecallbuttontoopentheStore/Recallmenu.

3ObservethelistofimagesintheStore/Recallmenu.

4ClickoneoftheimagesinthePermanentleseldtoselect

it.

5ClicktheRenamebuttonbelowthelestorenamethe

selectedimage.

•Observethataparameterdialogopenstopresentthe
currentlename.

•Observethatanon-screenkeyboardopenstoallowyou
toentercharacters.

6Placethecursoratthebeginningofthecurrentlename,

andclicktheDel(Delete)buttonontheon-linekeyboardto
removethecharactersinthecurrentlename.

•Makesurethatyoud

o n o t deletethelenameextension

.bmp.

7Clickthenecessarycharactersontheon-linekeyboardto

buildanewlename.

8ClicktheClosebuttonintheparameterdialogwhenyou

havecompletedthenewlename.

Figure8On-screenkeyboard

Youarealsopermittedtochangethelenameonimagesinthe

Temporaryleseld.However,ifyouwishtotransferthechosen

imagetothePermanentleseldafterwards,youwillndthat
thenewlenameischangedbythetransferprocess.

307672/D

35

SimradSX90

Howtoprintsonarimages

Observethefollowingproceduretoprintselectedsonarimages.

1ClicktheSetuptabtoopenthemenu.

2ClicktheStore/RecallbuttontoopentheStore/Recallmenu.

3ObservethelistofimagesintheStore/Recallmenu.

4Clickoneoftheimagestoselectit.

5ClickthePrintbuttonbelowthelestoprinttheselected

image.

Theimagewillbesenttothedefaultprinterconnectedtothe
ProcessorUnit.Y ouarenotallowedtocontroltheoutputsize
andformat.

HowtoburnsonarimagesonaCD

TheSX90ProcessorUnitisprovidedwithaCDplayercapable
ofburningblankCDs.Observethefollowingproceduretoburn
selectedsonarimagesonablankCD.Donotattemptthiswhile
thesonarisinusesearchingforsh!

Note

Thisprocedureassumesthatyouhavebasicknowledgeofle
managementinWindows.

1InsertablankrecordableCDintheProcessorUnit.

2Observethattheoperatingsystem’sauto-startfunction

opensadialogrequestingguidance.

3SelectOpenwritableCDfolderusingWindowsExplorer,and

clickOK.

4ObservethataWindowsExplorerwindowopens.

5BymeansofnormalWindowsfunctions,navigatetothe

folderd:/winson/screendumps.

6Double-clicktoopensub-folderPermanentorT emporary.

7ClicktoselecttheimagesyouwishtoburnontheCD,and

copythemtotheCD’sWindowsExplorerwindow.

8ClickWritetheselestoCDintheWindowsExplorer

window,andwaituntiltheprocesshasnished.

9RemovetheCD,andclosetheWindowsExplorerwindow.

Toaccesstheoperatingsystemfunctions,youcanclickanyHelp
button.Whenthehelpwindowopens,youcanalsoaccessthe

TaskbarwiththeStartbutton.

36

307672/D

Operationalprocedures

HowtocopysonarimagestoaUSB memorystick

TheSX90ProcessorUnitisprovidedwithseveralUSBinterface
ports.Thesearelocatedontherearsideofthecabinet,andon
somemodelsbelowtheCDplayerunderthefrontcover.Observe
thefollowingproceduretocopyselectedsonarimagesoverto
aUSBmemorystick.Donotattemptthiswhilethesonarisin
usesearchingforsh!

Note

Thisprocedureassumesthatyouhavebasicknowledgeofle
managementinWindows.

1InsertaUSBmemorystickintotheProcessorUnit.

2Observethattheoperatingsystem’sauto-startfunction

opensadialogrequestingguidance.

3SelectOpenWindowsExplorer,andclickOK.

4ObservethataWindowsExplorerwindowopens.

5BymeansofnormalWindowsfunctions,navigatetothe

folderd:/winson/screendumps.

6Double-clicktoopensub-folderPermanentorT emporary.

7ClicktoselecttheimagesyouwishtocopytotheUSB

memorystick,andcopythemtotheUSB’sWindows

Explorerwindow .

8RemovetheUSBmemorystick,andclosetheWindows

Explorerwindow .

Toaccesstheoperatingsystemfunctions,youcanclickanyHelp
button.Whenthehelpwindowopens,youcanalsoaccessthe

TaskbarwiththeStartbutton.

Automaticsearchandtrackingprocedures

TheSX90sonarprovidesyouwithtwoautomaticsearch
programs,horizontalandvertical.Bothareinitiatedfromthe
OperatingUnit

Howtostartthehorizontalsearchprogram

Observethefollowingproceduretoruntheautomaticsearch
program.

307672/D

37

SimradSX90

(CD015022H)

TRAIN

Target

Track

Position

Track

Manual

Auto

Search

Auto

Procedure

1PresstheAutosearchbuttonintheT raineldonthe

OperatingPaneltostartthehorizontalsearchprogram.

2HoldtheAutosearchbuttondepressedwhileyoualsopress

oneofthetwo“arrow”buttonsintheTraineld.

3Observethattheopeningangleofthesearchsectoris

adjustedaccordingly.

4ReleasetheAutosearchbutton,pressandholdoneofthe

two“arrow”buttons.

5Observethatthecentreofthesearchsectoristrained

accordingly.

Toexitthesearchprogram,presstheManualbutton.

Howtostarttheverticalsearchprogram

Observethefollowingproceduretoruntheautomaticsearch
program.

Procedure

1PresstheAutobuttonintheTilteldontheOperatingPanel

tostarttheverticalsearchprogram.

2HoldtheAutobuttondepressedwhileyoualsopressoneof

thetwo“arrow”buttonsintheTilteld.

38

3Observethattheverticalopeningangleofthesearchsector

isadjustedaccordingly.

4ReleasetheAutobutton,pressandholdoneofthetwo

“arrow”buttons.

307672/D

Operationalprocedures

Manual

5Observethatthecentreoftheverticalsearchsectoris

adjustedaccordingly.

6Toexitthesearchprogram,presstheManualbutton.

Howtoenablepositiontrack

Observethisproceduretoinitiateapositiontrack.

1Placethecursoroverthedesiredlocation.

2PressthePositiontrackbuttonintheT raineldonthe

OperatingPanel.

Ageographicallyxedcirclewillappearonthedisplay,and
itspositionwillautomaticallybetrackedbythesystemwith
respecttothebearingandtiltangle.Thetrackparameterscanbe
investigatedbyaccessingtheObjectsmenu.WhentheAutoTilt
functionisactivatedinthePositionTrackmodethetiltsearch
centreisautomaticallyadjustedwithregardtothedistanceto
thetrackedposition.

Howtoenabletargettrack

Observethisproceduretoinitiateatargettrack.

1Placethecursoroverthedesiredtarget.

2PresstheT argettrackbuttonintheTraineldonthe

OperatingPanel.

Acirclewithdedicatedidentication(A)willappearonthe
displayanditspositionwillautomaticallybetrackedbythe
systemusingthestrongestechocentredinthetrackwindow(B)
representedbythetwobarsontheaudioline.Thesizeofthe
trackwindowmaybeselectedusingtheT rackWindowbutton
intheSetupmenu.

307672/D

39

SimradSX90

(CD015005L)

1P

A

B

C

D

E

Figure9T argettrackingwithrelatedsymbols

Thevector(C)originatingfromthetarget’scentreindicatesits
courseandspeed.Thelengthofthevectorincreasesrelativeto
thetarget’sspeed.Oneknotisrepresentedbyasmallmarkon
thevector.Acourseline(D)canalsobedisplayedshowingthe
target’strack.Apointaheadofthetargetindicatesyouposition
afteragiventime,andthistimecanbesetusingtheMovements
buttonontheSetupmenu.Targettrackingsymbolsanddataare
displayedwithalightvioletcolour.

Howtoaddatargettrackingline

Observethisproceduretoaddatrackinglinetoatrackedtarget
toindicateitsmovementhistory.

Procedure

1Chooseanoperationalmodewithahorizontalpresentation.

2Placethecursorinthehorizontalpresentation.

3PresstheViewbuttonintheCursoreldontheOperating

Panel.

4Observethatashort-cutmenuappearsonthedisplay.

5ClickViewMenu,andobservethattheGeoViewmenuopens.

6ClicktheTargettrackbuttonontheGeoViewmenu.

307672/D

40

Usersettingprocedures

Operationalprocedures

7ObservethattheTargettrackparameterdialogopensbelow

themenu.

8Choosethelengthofthetrackingline,andclickClosetoexit.

Thissectionexplainshowtohandleuseranddefaultsettings
ontheSX90sonar.

Howtosavethecurrentusersetting

Observethefollowingproceduretosavethecurrentusersettings.

Procedure

1ClicktheSetuptabtoopenthemenu.

2ClicktheUsersettingbuttontoopentheparameterdialog.

3ClicktheSavecurrentsettingbutton.

Thecurrentsettingissavedwiththedefaultidentication
name.

Howtoloadausersetting

Observethefollowingproceduretoloadapredenedusersetting.

Procedure

1ClicktheSetuptabtoopenthemenu.

2ClicktheUsersettingbuttontoopentheparameterdialog.

3Clickthedesiredusersettingtoselectit.

4ClicktheLoadbutton.

5ClickOKinthenextparameterdialogtoconrmthe

selection.

Theselectedsettingisloaded.

Howtorenameausersetting

Observethefollowingproceduretorenameausersettings.

Note

Inprinciplesyoucanuseanyname,buttheModebuttonsonthe
OperatorPanelwillonlychoosefromUser1,User2,User3
andUser4.Thesenamesmustalsobeonthetopofthelist.If
youwishtoaddusers,applynameslikeforexample“User5
Charlie”.

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41

SimradSX90

Procedure

1ClicktheSetuptabtoopenthemenu.

2ClicktheUsersettingbuttontoopentheparameterdialog.

3Clicktheoneoftheusersettingsonthelisttoselectit.

4ClicktheRenamebutton.

•Observethataparameterdialogopenstopresentthe
currentname.

•Observethatanon-linekeyboardopenstoallowyouto
entercharacters.

5Placethecursoratthebeginningofthecurrentname,and

clicktheDel(Delete)buttonontheon-linekeyboardto
removethecharacters.

6Clickthenecessarycharactersontheon-linekeyboardto

buildanewname.

7ClicktheOKbuttonintheparameterdialogwhenyouhave

completedthenewname.

8ClicktheClosebuttonintheUserSettingparameterdialog

whenyouhavecompletedtheprocedure.

Thenewnameissavedautomatically.

Howtodeleteausersetting

Observethefollowingproceduretodeleteapredeneduser
setting.

Procedure

1ClicktheSetuptabtoopenthemenu.

2ClicktheUsersettingbuttontoopentheparameterdialog.

3Clickthedesiredusersettingtoselectit.

4ClicktheDeletebutton.

5ClickOKinthenextparameterdialogtoconrmthe

selection.

Theselectedusersettingisdeleted.

Howtoloadthefactorysettings

Observethefollowingproceduretoloadthepredenedfactory
settings.

Procedure

1ClicktheSetuptabtoopentheSetupmenu.

2ClicktheDefaultsettingbutton.

42

307672/D

Installationofoptions

Operationalprocedures

3ClickOKinthenextparameterdialogtoconrmtheaction.

Thefactorysettingsareloadedandimplemented.

OptionalfunctionalitymaybeaddedtotheSX90sonar.

Alloptionsarepre-programmedintothestandardsonarversion,
andthatSimradoffera1monthfreetestperiodforcertain
options.Whenorderingapermanentoptioninstallation,acode
wordwillbereleasedfromSimrad.Forafreetest,orpermanent
optioninstallation,usethefollowingprocedures.

ToaccesstheInstallOptionsdialog

1SelecttheSetupmenu.

2ClicktheTestbuttontoopentheSystemtestmenu.

3ClicktheInstallationMenubutton.

4Observethattheinstallationmenubarisshownonthetop

ofthescreen.

5ClickOptions→Installoptions.

6ObservethattheInstallOptionsparameterdialogopens.

307672/D

43

SimradSX90

InstallOptionsparameterdialog

ThefollowingparametersareavailableintheInstalloptions
parameterdialog.

•HWID:Thiselddisplaystheunique12-characterhardware
identicationcode.ThiscodeisdifferentforeachSX90sonar.
Simradusesthiscodetogeneratethe32-charactercodeword
usedforapermanentoptioninstallation.

•T ry:Eachwillstartthe1monthfreetestperiodforthe
chosenoption.

Note

Ifanytimeordateadjustmentsaremadeduringthetest
period,theoptionwillbeclosed.

•AddLicenseString:Thisbuttonisusedforpermanent
installationofthechosenoption.Whenyoupressthebutton,
thiswillactivatetheon-screenkeyboardusedtotypethe
required32-charactercodeword.

Toaddanoptionpermanently

1OpentheInstallOptionsparameterdialog,andwritedown

theHWIDnumber.

2SendtheHWIDnumbertoyourdealer.Makessurethatyou

writedownthecharacterstringcorrectly!

3Usethesonarwithouttheoptionuntilyourdealerapproaches

youwithacodeword.

4OpentheInstallOptionsparameterdialog,andclicktheAdd

LicenseStringnumber.

5Placethecursorinthetexteld.

6Typethecodewordontheon-screenkeyboard.

7Checkthatthe32charactersareenteredcorrectlyintothe

texteld.

8ClicktheApplyLicenseStringbutton.

9Exittheparameterdialog,andrestartthesonar.

10Checkthattheoptionisavailableforuse.

44

307672/D

DISPLAYMODES

Displaymodes

TheSX90sonarprovidesyouwithseveraldifferentdisplay
modes.Thesehavebeencreatedtocoverallyouroperational
needsforvarioustypesofshingandshinggear.

Bowup

WhenBowupmodeisselected,thevesselsymbolisstationaryon
thescreenwiththebowpointingupwards.Theechopresentation
covers360degreesaroundthevessel,andallechoesareupdated
foreveryping.Thedistancefromthevesselsymboltotheouter
echoringisequaltotheselectedrange.Themovementofthe
echoesacrossthescreenarecontrolledbyacombinationofthe
vessel’scourseandspeedandthetarget’sownmovements.

Bowup/Audio

WhenBowup/Audiomodeisselected,theupperhalfofthescreen
showsa180degreesbow-uppresentation,whilethelowerpart
isusedforarecordingoftheaudiochannel.Theaudiochannel
isshownwithacontinuouswhitelineinthehorizontalpicture,
anditcanbetrainedinanydirection.Therecordedechoesare
adirectreplicaoftheechoesunderthewhiteaudioline.As
theaudiochannelisrecordedoveraperiodoftime,thismode
isespeciallyusefulfordetectionofweakechoesmixedwith
reverberationornoise.Theinformationrecordedbytheaudio
channelisalwaysstoredinthecomputer,evenifanothermodeis
selected.Thatmeansthatthisrecordingwillalwaysbepresented
whenselectingtheBowup/Audiomode.Notethatthevessel
symbolcanbemovedtoanypositioninthehorizontalviewwith
thecursorandOffCentrebuttonontheOperatingPanel.

BowUp/Vertical

WhenBowup/V erticalmodeisselected,thepictureisdivided
intothreesections;wheretheleftsideisabow-uppresentation
similartotheBowuppresentationpreviouslydescribed.The
upperpartontherighthandsideisaCatchdatapresentation,
whilethelowerpartisaV erticalslicepresentation.

BowUp/DualVertical

WhenBowup/Dualverticalmodeisselected,theupperpart
ofthescreenshowsacurtailedbow-uppresentation,whilethe
lowerpartshowstwoverticalslicepresentations.Thebearing
oftheleftverticalpresentationisindicatedbythewhiteaudio
lineinthehorizontalpresentation,whilethebearingoftheright
verticalpresentationisindicatedbytheyellow-dashedline.
Allbordersbetweenthedifferentviewsmaybemovedtoany
positionbyusingthetrackball.

307672/D

45

SimradSX90

Bowup/180°Vertical

WhentheBowup/180°Verticalmodeisselected,theupperpart
ofthescreenshowsacurtailedBowuppresentation,whilethe
lowerpartshowsa180degreesVerticalslicepresentation.This
modeismainlyintendedfortrawlers,wheretheverticalview
actsasamultibeamechosounder.Thebearingofthevertical
slicecanbeselectedintheV erticalViewmenu.Youcancontrol
theaudioline,anindicatorline,oryoucansetittobelocked
inforward,aftorathwartshipsposition.Asthecylindrical
transducerhasa“blindzone”straightdown,anechopresentation
inthisdirectionwillbelimitedtotwoapproximately60degrees
sectors.Toavoidthis“blindzone”,theverticalsliceismade
“tippable”,andbyselectinga-60degreestipangle(orless),
afull180degreescoverageisobtained.Thetipanglecanbe
adjustedfrom+10to-90degrees.Inadditiontotheread-outin
theTipmenubutton,theselectedtipangleisshownwithadotted
yellowlineinthetiltindicatorintheupperleftcorner.

Truemotion

WhenTruemotionmodeisselected,thepictureislockedtoa
geographicalposition,wherethevesselmovesaroundthescreen
accordingtoitspresentcourseandspeed.Allechoesarealways
presentedintheircorrectpositionrelativetothevessel,andtheir
movementsonthescreenwillbeatruerepresentationofthe
movementsofthetargetsthroughthewater.Whenthevessel
symbolreachestheedgeofthescreen,itwillautomaticallybe
movedbacktothecentre,ortoapositiondeterminedbytheOff

CentrebuttonontheOperatingPanel.Thispositionisresettothe

screencentrewheneverthemodeischanged.Whenyoupress
theT argetT rackbutton,thetargetwillautomaticallybemovedto
thescreencentre.

Truemotion/Vertical

WhenTruemotion/V erticalmodeisselected,thepictureis
dividedintothreesections;wheretheleftsideisaTruemotion
presentationsimilartothetruemotionpresentationpreviously
described.TheupperpartontherighthandsideisaCatchdata
presentation,whilethelowerpartisaV erticalslicepresentation.

Northup

WhenNorthupmodeisselected,truenorthisalwaysuponthe
screen.Thevesselsymbolisstationarywiththebowpointingin
thevessel’scoursedirection.Themovementoftheechoesacross
thescreenarecontrolledbyacombinationofthevessel’scourse
andspeedandthetarget’sownmovements.

46

307672/D

Displaymodes

Dual1

TheDual1modeisakindof“twosonarsinone”operation,where
eachpresentationisupdatedforeverysecondtransmission.All
settingscanbesetindividuallyforeachofthetwopresentations.
Thismakesthedualmodeespeciallyusefulforoptimizing
settingsbydirectlycomparingthetwopresentations.Tooptimize
thehorizontalsettings,usetheHorizontalmenutotrydifferent
settingsintheupperpicture.Thesesettingsareautomatically
transferredtotheothermodes.Thedualoperationmayalso
beusedforotheruserapplications,wheredifferentrange,tilt,
frequencyandotherparameterscanbeselected.

Dual2

TheDual2modeisverysimilartotheDual1modepreviously
described,butthe“twosonars”arepresentednexttoeachother.
Allsettingscanstillbesetindividuallyforeachofthetwo
presentations.

270°/Vertical

The270°/Verticalmodeisspeciallydesignedforpurseseining.
Theverticalhalfsliceisdisplayedinthelowerleftcornerfor
normalsettingwiththenetonthestarboardside.Ifthenetisset
ontheportside,the60degreesverticalslicewillbedisplayed
inthelowerrighthandcorner.Withthispresentation,itiseasy
tokeepthebestcontactwithaschoolinboththeverticaland
horizontalpresentation,andtodetermineitssizedistribution.
Thepositionoftheschoolrelativetothebottomisanother
importantinformationprovidedbythispresentation.TheCatch
datapresentationforpurseseiningisshownontherighthand
side.Itshowsallthenetdatarelativetothetargetandthebottom,
aswellasallavailabletargetdata.

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47

SimradSX90

OPERATINGPANEL

Thefrequentlyusedfunctionsaredirectlyaccessiblebythe
designatedcontrolbuttonsontheOperatingPanel,andmay
enteroperationalcommandsdirectly.Thebuttonsaregroupedin
eldsaccordingtotheirpurpose.Mostsonarfunctionsarealso
accessibleandactivatedusingthemenusystemonthedisplay
andthetrackballandSelectbuttonontheOperatingPanel.

Figure10SX90OperatingPanel

MainSwitch

Thisisthesonar’s“on/off”switch.Ithasbeenpreviously
explained.SeePoweron/offproceduresonpage10.

Symbol

Thesebuttonsallowyoutoenterfourdifferentmarkersand
symbolsonthesonarpicture;Targetmarker,Ownshipsymbol,

CirclemarkerandGearsymbol.Thetwomarkerswillbeplaced

atthecursor’slocationwhenyoupressthebutton.TheOwnship

symbolproducesasquaresymbolonthescreenatthevessel’s

currentlocationwhenthebuttonispressed,whiletheGear

symbolisusedtodeployaseineortrawlsymbol.SeeMarkers

andsymbolsproceduresonpage28.

Mode

Thesefourbuttonsprovidefastaccesstothefouroperational
modesyouselect,ortofourpredenedusercongurations.You
mustselectwhichfourmodesorusercongurationstoselect,
andinwhichordertheyshallappear.Tochoosebuttonfunction,
clickModebuttonontheDisplaymenu.Todenetheorderof
theoperationalmodes,clickSortmodesontheSetupmenu.See
Modeproceduresonpage27andUsersettingprocedureson
page41.

48

307672/D

Operatingpanel

Gain

Thisiswhereyousetupthegaininbothhorizontalandvertical
presentations.SeeGainadjustmentproceduresonpage24.

Range

Thisiswhereyouselecttherangeinthehorizontalandvertical
presentations.

Cursor

Thetrackballisusedtomovethecursoronthedisplay.TheMenu
buttonisusedtohidethemenu,whiletheSelectbuttonisusedto
makeselectionsonthedisplay.TheViewandObjectbuttonsopen
specicshort-cutmenus.SeeControlthecursoronpage15.

Tilt

Thesearethebuttonsusedtotiltthesonarbeamupordown.You
canalsostartanautomatictiltprogramtocarryoutautomatic
searches,seeHowtostarttheverticalsearchprogramon
page38.

Train

Thesebuttonscontrolthesidewaysmovements(training)ofthe
sonarbeam.Youcanalsostartanautomatictrainingprogramto
carryoutautomaticsearches,andyoucanlockthebeamona
chosentargetorposition.SeeHowtostartthehorizontalsearch
programonpage37andHowtoaddtargetandcirclemarkers
onpage28.

Various

Thesebuttonsareusedtodisabletheaudiooutput,starta
recordingandtozoominonthesonarpicture.SeeStorage
proceduresonpage32.

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49

SimradSX90

MENUDESCRIPTIONS

Activemenus

TheSimradSX90sonarisequippedwithanextensivemenu
system,andyouwillusethistochooseparametersforthevarious
operationalmodes.Inordertoselectactivemenuandtoclickthe
variousbuttons,youmustusethecursor.Thecursoriscontrolled
bythetrackballontheOperatingPanel,andto“click”you
simplypresstheSelectbutton.

Note

ThischapterdoesnotdescribeallthemenubuttonsontheSX90
sonar.Foracompletedescriptionofthese,refertotheReference
Manual.

Theactivemenusarethoserelevantforthedifferentoperational
modes.Themenusareshownwithverticalselectortabsonthe
righthandside,andeachmenucaneasilybeselectedusingthe
trackballandtheSelectbuttonontheOperatingPanel.Allmenus
haveaccesstoon-linehelpthroughaHelpbutton.

50

307672/D

Horizontalmenu

Menudescription

Menudescriptions

TheHorizontalmenuisusedtocontrolthe
horizontalpresentations.Theparameters
chosenarepresentinalldisplaymodes.
Whenahorizontalparametersettingis
selectedanddenedinonemode,the
chosensettingswillautomaticallybe
appliedtoallmodes.TheHorizontal2
menuisidenticaltotheHorizontalmenu.
ItisusedduringDual1andDual2
operations.

Menubuttons

•Range:Selecttherangeforthehorizontalpresentation.

•Tilt:Selectthesonarbeam’sverticalangle.

•Bearing:Thisbuttoncontrolsthedirectionofthewhite
bearinglineonyoursonarpicture.Thislinemaybeusedto
controlthedirectionoftheverticalslice.

•Gain:Thissettingcontrolstheamplicationofthereceived
echoesinthehorizontalpresentation.Ifyouactivatethe

AGC(AutomaticGainControl)function,thisgainsettingis

inuenced.

•PulseForm:Usethisfunctiontoselecttheformofthe
transmittedpulse.ThiscouldeitherbeFM(Frequency
modulation)withdifferentpulselengthsandnumberof
frequencies,orCWwithdifferentpulselengths.

•TXPower:Thisbuttoncontrolsthetransmissionpower.

•Beam:Thisbuttonallowsyoutochooseverticalbeamwidth
inthehorizontalpresentation.

•PingSector:UseOmnitotransmitin360degrees,orSectorto
transmitasinglebeam.

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51

SimradSX90

•Frequency:OntheSX90youcanalterthesonar’s
transmissionfrequency.Thisisveryusefultoeliminate
interferencefromotherequipmentonboard,orfromother
vesselsinthevicinity .

•TVG:TimeV ariedGain.Thisfunctionwillautomatically
adjustthegaininthesonartocompensateforgeometric
spreadandabsorption.NotethattheTVGwillonlywork
withintherst1000meters.

•AGC:AutomaticGainControl.Thisfunctionwill
automaticallyreducethegainifyouexperiencereverberation
andnoise,orincreaseitiftheconditionspermitit.Usingthe
AGCwillensurebestpossiblesignalprocessing.

•RCG:ReverberationControlledGain.Thisfunctionwill
automaticallyremoveunwantedreverberationfromthe
bottomorfromtheseasurface.Itmayhoweveralsoremove
scatteredsh.

•NoiseFilter:Thisltercanbeusedtominimizethe
interferencefromotheracousticsystems(sonarsandecho
sounders)onyourownandothervessels.Itwillalsosuppress
noisefromyourpropellers,andfromothersimilarnoise
sources.

•PPFilter:ThePing-to-Pinglterwillonlyshowyouthe
echoesiftheyarestillpresentafterseveralconsecutivepings
(2,4or8).Thisfunctionwillprovideyouwithamorestable
echopresentation,asspuriousechoeswillbesuppressed.

52

307672/D

Verticalmenu

Menudescription

Menudescriptions

TheVerticalmenuisonlyshowninmodes
withaverticalslicefunction.Allrelevant
settings,excepttheTXPower,canbe
selectedseparatelyfortheverticalmodes
independentofthehorizontalsettings.
Whenanyverticalsettingisselectedand
denedinonemode,thesettingwillbe
appliedtoallverticalmodes.

Menubuttons

•Range:Selecttherangefortheverticalpresentation.

•Bearing:Usethisfunctiontoadjustthebearing.

•Gain:Thissettingcontrolstheamplicationofthereceived
echoesintheverticalpresentation.IfyouactivatetheAGC
(AutomaticGainControl)function,thisgainsettingis
inuenced.

•PulseForm:Usethisfunctiontoselecttheformofthe
transmittedpulse.ThiscouldeitherbeFM(Frequency
modulation)withdifferentpulselengthsandnumberof
frequencies,orCWwithdifferentpulselengths.

•TXPower:Thisbuttoncontrolsthetransmissionpower.

•Frequency:OntheSX90youcanalterthesonar’s
transmissionfrequency.Thisisveryusefultoeliminate
interferencefromotherequipmentonboard,orfromother
vesselsinthevicinity .

•TVG:TimeV ariedGain.Thisfunctionwillautomatically
adjustthegaininthesonartocompensateforgeometric
spreadandabsorption.NotethattheTVGwillonlywork
withintherst1000meters.

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53

SimradSX90

•AGC:AutomaticGainControl.Thisfunctionwill
automaticallyreducethegainifyouexperiencereverberation
andnoise,orincreaseitiftheconditionspermitit.Usingthe
AGCwillensurebestpossiblesignalprocessing.

•RCG:ReverberationControlledGain.Thisfunctionwill
automaticallyremoveunwantedreverberationfromthe
bottomorfromtheseasurface.Itmayhoweveralsoremove
scatteredsh.

•PPFilter:ThePing-to-Pinglterwillonlyshowyouthe
echoesiftheyarestillpresentafterseveralconsecutivepings
(2,4or8).Thisfunctionwillprovideyouwithamorestable
echopresentation,asspuriousechoeswillbesuppressed.

Vertical180menu

Menudescription

TheV ertical180menuisonlyshown
whentheBowup/180°V erticalmodeis
chosen.Allrelevantsettings,exceptthe

TXPower,canbeselectedseparatelyfor

theverticalmodesindependentofthe
horizontalsettings.Whenanyvertical
settingisselectedanddenedinone
mode,thesettingwillbeappliedtoall
verticalmodes.TheTipbuttonisonly
availableonthismenu.TheTipbuttonis
usedtotiptheverticalslicetoavoidthe
blindzone.

Menubuttons

•Range:Selecttherangefortheverticalpresentation.

•Tip:Usethissettingtotiptheverticalslicetoavoidtheblind
zone.

•Bearing:Usethisfunctiontoadjustthebearing.

54

307672/D

Menudescriptions

•Gain:Thissettingcontrolstheamplicationofthereceived
echoesintheverticalpresentation.IfyouactivatetheAGC
(AutomaticGainControl)function,thisgainsettingis
inuenced.

•PulseForm:Usethisfunctiontoselecttheformofthe
transmittedpulse.ThiscouldeitherbeFM(Frequency
modulation)withdifferentpulselengthsandnumberof
frequencies,orCWwithdifferentpulselengths.

•TXPower:Thisbuttoncontrolsthetransmissionpower.

•Frequency:OntheSX90youcanalterthesonar’s
transmissionfrequency.Thisisveryusefultoeliminate
interferencefromotherequipmentonboard,orfromother
vesselsinthevicinity .

•TVG:TimeV ariedGain.Thisfunctionwillautomatically
adjustthegaininthesonartocompensateforgeometric
spreadandabsorption.NotethattheTVGwillonlywork
withintherst1000meters.

•AGC:AutomaticGainControl.Thisfunctionwill
automaticallyreducethegainifyouexperiencereverberation
andnoise,orincreaseitiftheconditionspermitit.Usingthe
AGCwillensurebestpossiblesignalprocessing.

•RCG:ReverberationControlledGain.Thisfunctionwill
automaticallyremoveunwantedreverberationfromthe
bottomorfromtheseasurface.Itmayhoweveralsoremove
scatteredsh.

•PPFilter:ThePing-to-Pinglterwillonlyshowyouthe
echoesiftheyarestillpresentafterseveralconsecutivepings
(2,4or8).Thisfunctionwillprovideyouwithamorestable
echopresentation,asspuriousechoeswillbesuppressed.

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55

SimradSX90

Displaymenu

Menudescription

TheDisplaymenuisshowninalldisplay
modes,andprovidesaccesstoparameters
controllingthevisualpresentationofthe
sonarviews.Someofthechoicesonthe
menuaresimpleon/offbuttons.

Menubuttons

•Fullscreen:Clickthisbuttontoremoveorretrievethemenu.

•Palette:Clickthisbuttontochooseapresentationcolour
palettetosuityourpersonalpreferences.

•DisplayGain:Thisfunctioncontrolstheamountofechothat
aredisplayed.UsethiscontroltogetherwithGaintocontrol
thesonar’ssensitivity.

•ColourThreshold:Clickthisbuttontocontrolhowmany
colourstouseintheechopresentation.

•Colours:Controlhowbrightcoloursyouwishtouse.The
colourbarinthemenushowsthecolourrangethatisused.

•Resolution:Select16or64coloursinthedisplaypresentation.
Thechosenresolutionisshowninthecolourbarbelowthe
button.

•PanelBacklight:Thisfunctioncontrolstheintensityofthe
backlightintheOperatingPanel.

•Modebuttons:UsethisbuttontochoosehowtheMode
buttonsontheOperatingPanelshallwork.Y oucaneither
choosebetweenthefourmostfrequentmodes,orthefour
mostfrequentusersettings.

56

307672/D

Menudescriptions

•Language:Choosethemenulanguage.

•Units:Allowsyoutochoosetheunitsusedbythesonar.

•Cosmetics:ClicktoaccesstheCosmeticsmenu,whichallows
youtocontroltheamountofsupportinformationonthesonar
picture.

•Bearing(Display):Setupthesoundchannelbearingtobe
relativeorrelatedtotruenorth.

•Menu:Chooseifyouwishtoseethecompletemenus(as
describedhere),orjustthemostimportantsettings.

Setupmenu

Menudescription

TheSetupmenuisshowninalldisplay
modes,andgivesaccesstoparameters
controllingtheprocessingandalgorithms
inthesonarsystem.Italsoprovides
accesstospecicsystemparametersand
functionssuchasTestandStore/Recall.

Menubuttons

•Store/Recall:Clickthisbuttontorecordandplaybacksonar
images.

•Test:Clickthisbuttontoaccessthesonar’stestsoftware.
Theseutilitiesareonlyprovidedforcertiedservice
technicians,andtheyarenotdocumented.

•Gear:Thisbuttonisusedtoselectthetypeofshinggear
youuse,andtogettherightsizeandpositionofthegearon
thedisplay.

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57

SimradSX90

•School:Thisparameterisusedtoobtaininformationofthe
volumeestimationofaschoolintheautomatictargettracking
program.

•DeadReckoning:Thisisanon/offfunction.Whenoff,the
GPSisusedtocalculatethepositionofyourvessel.Whenon,
thecurrentspeedandtheinputfromthegyroisused.

•Stabilizer:Whenthisfunctionisactive,thesonarwill
automaticallyadjustthesonarpicturetocompensateforthe
ship’smovementsinthesea.

•Movements:Thisfunctionmakesitpossibletoestimatethe
positionofatrackedschoolatagiventime.

•T rackwindow:Thiscommandenablesyoutoadjustthe
sizeofthewindowthesonarplacesonthechosentarget.A
largertrackwindowwillenablethesystemtotrackalarge
targetmoreeasily,butthesystemwillbemoresusceptibleto
backgroundnoise.Smallertargetsmaybeignoredifthereisa
lotofnoiseinthearea,asthesystemwilltrackthestrongest
echowithinthetrackwindow.

•Winddirection:Thewindmarkerisshowintheouterarea
oftheechopresentationasawhitearrow.Thisarrowcan
bemanuallyadjustedforindicationofthewindorcurrent
direction,orautomaticallyshowthewinddirectionifawind
sensorisconnected.

•Windspeed:Thisisnotaparameter.Itisonlyaread-outofthe
currentwindspeedprovidingthatawindsensorisconnected.
IftheScienticOutputfunctionhasbeenimplemented,this

WindspeedbuttonisreplacedwiththeScienticOutputbutton.

•ScienticOutput:Thisisanoptionalfunctionalitydesignedto
beusedwhenthesonarisusedforscienticpurposes.When
enabled,thesonarwillprovidespecialinformationonan
ethernetport.ThisbuttonreplacestheWindspeedbutton.

•Sortmodes:ClicktoaccesstheSortModestemporarymenu.
Thismenuisusedtoselectthedisplaymodestobeactivated
bythefourModebuttonsontheOperatingPanel.Thefour
upperdisplaymodesintheSortModesmenuwillalwaysbe
thefourmodesactivatedbythefourModebuttonsintheorder
theyaresorted.

•Externalsync(hronisation):Thisfunctionmakesitpossibleto
eliminateinterferencefromotherSimradsonarsonboardyour
vessel.Ifthesonarsareconnectedtogether,youcanusethese
settingstosynchronisetheirtransmissions.

•Fishalarm:Thisfunctionmakesitpossibletosetupthe
sonartowarnyouwhenaschoolofsharedetectedinside
theselectedsector.Theselectedsectorisdisplayedwithwhite
dashedlinesinthehorizontalsonarpicture.

58

307672/D

Menudescriptions

•Usersetting:Thisfunctionisusedtostoretheparameter
settingsfordifferenttypeofsheries,orindividualuser
relatedsettings.

•DefaultSetting:Clickthisbuttontoretrievethedefault
factorysettings.

Objectsmenu

Menudescription

TheObjectsmenuisshowninalldisplaymodes,anddisplaysthe
range(R),bearing(B)anddepth(D)toallselectedobjects.The
identifyingabbreviationsforthedifferentobjectsare:

•AT:AutomaticTargetTrackmarker

•Ci:Circlemarker

•M:Targetmarker

•OS:OwnShipmarker

Temporarymenus

•PT:PositionTrackmarker

•F:RadioBuoymarker(ifaGPSbuoysystemisconnected)

Foradditionalinformation,seeMarkersandsymbolsprocedures
onpage28.

Thetemporarymenusarethoseselectedfromtheactivemenus.
Theyarealsoshownwithverticaltabsontherightsideof
themenu,andcaneasilybeselectedbythetrackballandthe

Selectbutton.Thetemporarymenusmusthoweverberemoved

manuallyusingtheClosebuttoninthebottomofmenu.All
temporarymenushaveaccesstoon-linehelpthroughaHelp
button.

Cosmeticsmenu

TheCosmeticsmenuisactivatedbypressingtheCosmeticsbutton
intheDisplaymenu.Themenuprovidesaccesstovarious
parameterscontrollingtheappearanceofthesonarpicture.All
thefunctions-exceptTrackHistory-areon/offbuttons.

Store/Recallmenu

TheStore/RecallmenuisactivatedbytheStore/Recallbutton
intheSetupmenu.Thismenuisusedtostoresingledisplay
picturesorasequenceorpictures.Thestoredpicturescaneasily
berecalledforevaluationorcomparingschools.

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SimradSX90

SystemTestmenu

TheSystemtestmenuisactivatedbytheT estbuttonintheSetup
menu.Thismenuprovidesseveralsensormeasurementsand
testfunctionsforoperationalandfunctionaltests.Notethat
testsaredesignedonlytobecarriedoutbyqualiedservice
engineers.FromthismenuyoucanalsoaccesstheMessageBar
conguration.

SortModesmenu

Thismenuisusedtoselectthedisplaymodestobeactivatedby
thefourModebuttonsontheOperatingPanel.Thefourupper
displaymodesinthismenuwillalwaysbethemodesselectedby
thefourModebuttonsintheordertheyaresorted.Inordertosort
themodes,clickonamodetoselectit,andclicktheMoveUpand

MoveDownbuttonstomovetheselectedmodeupordownthe

list.Whenthemodesareorganizedintherequestedorder,click
theApplybuttontosavethesetting,andClosetoclosethemenu.

Pop-upmenus

Viewmenus

Thepop-upmenusareaccessedusingtheViewandObject
buttonsontheOperatingPanel,orthemiddleandrightmouse
buttonsifanoptionalcomputermouseisinstalled.Eachbutton
willpresentasmallmenuappearingatthecursor’scurrent
location.Tomakeaselection,positionthearrowcursorbymeans
ofthetrackball.Then,presstheSelectbuttonontheOperating
Panelorthel

TheviewmenusareactivatedfromtheViewpop-upmenu,which
againisaccessedusingtheViewbuttonontheOperatingPanel
orthemiddlemousebutton.Theviewmenusareshownwith
verticaltabsontherighthandside,andthemenuscaneasilybe
closedusingtheClosebuttoninthelowerpartofeachmenu.All
menushaveaccesstoon-linehelpthroughaHelpbutton.

e f t mousebutton.

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307672/D

Menudescriptions

GeoViewmenu

TheGeoViewmenuprovidescontrolofselectedparameters
relatedtothecurrentdatadisplayedinthehorizontalview;the
scaleandtargettrack.Italsoprovidesyouwithabuttonto
repositionthevesselsymbol.TheGeoView2menuisidenticalto
theGeoView.Itisshownwhenyouoperateinthesecondview
inaDual1orDual2operationalmodes.

VerticalViewmenu

Thismenuprovidescontrolofselectedparametersrelatedtothe
currentdatadisplayedintheverticalview.NotethattheDirection

IndicatorisonlyavailablewhenIndicatorisselectedintheData
Sourceparameterdialog.

CatchViewmenu

Thismenuprovidescontrolofselectedparametersrelatedtothe
currentdatadisplayedintheCatchview.NotethattheCatch
viewisonlyavailableinthe270º/Vertical,TrueMotion/V ertical
andBowup/V erticaldisplaymodes,andyoumayneedtohide
themenutoseeit.

Messages

Whennecessary,thesonarwillprovideyou(oryourservice
engineer)withoperationalandtechnicalmessages.These
messagesaresortedintofourcategories;

1Warnings

2Operatoralarms

3Systemalarms

4Errors

Inordertoaccessthemessages,theMessageBarmustbeenabled.
Thisfunctioncanbesettoactivateitselfwhennecessary.The

MessageBarislocatedatthebottomofthedisplay,anditcontains

fourbuttons,oneforeachcategoryofmessages.Thesebuttons
giveanoverviewofthenumberofunreadmessagescurrentlyin
thesystem.Eachofthefourbuttonsgivesaccesstoadialog
whereeachmessagecanberead,acknowledgedanddeleted.
Whennomessagesarepresent,thefourbuttonsaregrey.When
oneormoreunreadmessagesexists,theWarningandOperational

Alarmbuttonsareyellow,whiletheSystemAlarmandError

buttonsarered.

307672/D

61

SimradSX90

Figure11TheMessageBarbuttons

Eachmenudisplaysthewarning,alarmanderrormessages
issuedbythesonar.Eachmessageisidentiedwithtimeofissue
andaheading.Additionalinformationisfoundinthesmalltext
eldbelowthemessagelist.Thetopofthemessagelistwith
themostrecentmessagesisalwaysdisplayedwhenthedialog
isopened.Acknowledgedmessagesaredisplayedingrey.Use
thecursorandselectindividualmessageswiththeSelectbutton
ontheOperatingPanel.

62

307672/D

Basictheory

A

(CD015005C)

0

1

10 100

1000

C

B

BASICTHEORY

Thischapterexplainssomeofthebasictheoryrelatedtosettings,
errorsourcesandnoiseconditions.

Settings

Asonarwilltransmitasoundwaveintothewateraroundthe
vessel.Whenthissoundwavehitssh,bottom,orotherobjects
inthewater,apartofthesoundwillbereturnedasechoes.
Theseechoesarecollectedbythesonar,interpretedbythesonar
computers,andpresentedonthedisplay.

Themostimportantinterpretationishoweverlefttoyou,and
itmayoftenbedifculttodistinguishtheechoesandidentify
targets.Inordertohelpyouwiththis,theSX90sonarprovides
numerousadvancedlterandgainfunctions.Y oucanalsotilt
thesonarbeamverticallyinordertoachieveanoptimumresult,
andyoucanusetheverticalslicetoview“across”intothewater.

Thischapterprovidesyouwithsomebasictheoryaboutsome
ofthekeysettingsavailable.

WhatisTVG?

TVGmeans“TimeVariedGain”.Asechoeswillbeweaker
whenthedistancetothemincrease,thesonarwillautomatically
amplifydistantechoesmorethancloseechoes.Inpractice,the
gainwillincreaseinproportionwithhowlongthesonarmust
waitfortheechoes.

Figure12TheTVGprinciple:Thegainattime(B)islargerthanattime(A).

WhenyouchoosetheTVGsettingyoucaneitherswitchitoff,or
choosea“XlogR”value.Thedifferentsettingsdeterminehow
muchgainthesonarwilluseastimeelapsesalongtheX-axis.A
highervaluefor“X”willmaketheangle(C)steeper.

DefaultsettingontheSX90sonaris20logR.

307672/D

63

SimradSX90

WhatisAGC?

AGCmeans“AutomaticGainControl”.IfyouwishtheSX90
sonartocontrolitsowngainautomatically,youmustenablethis
function.Youcanchoosefromthreedifferentlevels.When
theAGChasbeenswitchedon,themanualGainsettingyou
havechosenwillonlyworkonshorterranges.Oncetherange
isincreased,thecomputerwillgraduallytakecontroloverthe
sonargain.

DefaultsettingontheSX90sonarisMedium.

WhatisthePPFilter?

PPFiltermeans“Ping-to-PingFilter”.Whenthisfunctionis
activated,thesonarwillcomparetheechoesfromonepingwith
theechoesfromthenextpings.Ifanechoispresentattherst
ping,butthendisappearsatthenext,thesonarwillinterpretthis
asnoiseandreverberation,andremoveit.

IfyouchoosesettingWeak,thesonarwillonlycomparetwo
consecutivepings.IfyouchoosesettingsMediumorStrongthe
sonarwillcomparefourandeightpingsrespectively.

DefaultsettingontheSX90sonarisMedium.

Aboutpulseformandlength

OntheSX90sonar,youcantransmitsoundmodulatedasFM
orCW .

FMmeans“frequencymodulated”,whichmeansthatthe
frequencyofthetransmittedpulseischangedduringthe
transmission.Inmostcasesthismethodwillprovidebetterecho
presentationandstability,andyouwillavoidexcessivenoise
andreverberation.

DefaultsettingontheSX90sonarisFMAuto.Inthis
transmissionmode,thesonarwillautomaticallychoosefroma
setofdifferentfrequenciesdependingonthecurrentrange.

CWmeans“continuouswave”,whichmeansthatthe
transmissionfrequencyisxedduringtheentirepulse.When
youuseCWtransmissionyoucanchoosethelengthofthe
pulses.Inasearchphaseundergoodconditions,youshouldtry
settingLong.Iftheconditionsworsen,trytoshortenthepulse
length.Thiswillmakeiteasiertodistinguishthevariousechoes,
andthereverberationwillbereduced.

64

307672/D

Aboutbeamwidths

(CD015005A)

B

C

A

Anarrowbeamwillalwaysreachfurtherthanawidebeam.This
isbecausethetransmittedpowerofthesonarisconcentrated.
Nevertheless,youcaneasily“miss”aschoolofshifyoumake
thebeamtoonarrow.Iftherangeisreduced,itisthecommonto
useawiderbeam.

Figure13Beamwidths:Wide(A),Normal(B)andNarrow(C)

Basictheory

DefaultsettingontheSX90sonarisNormal.Thissettingis
basicallydesignedforlongerranges.

YoumayalsotrysettingAuto.Thissettingwillautomatically
adjustthebeamwidthdependingonthecurrentrange.

AboutGain

Youcanadjustthegaininmanydifferentways,butthemost
importantisthesettingmadebytheGainbuttonsonthe
OperatingPanelandontheHorizontalandVerticalmenus.

Ifyouhavetoomuchgain,youwillseeasonarpicturewithtoo
manyechoes.Thisisbecausethelargeamplicationpresentsall
kindofnoiseandreverberationthatthesonarpicksup.Ifthe
gainissmallerthenoiseandreverberationwilldisappear,butifit
thegainistoosmalltheshechoesmaydisappearaswell.In
mostcasesyoushouldtrywithamediumvalue.OntheSX90
sonar,thedefaultvalueissetto30.

Onthissonar,youcanadjustthehorizontalandverticalgain
independentofeachother.Thehorizontalgainisusedwhenthe
sonaroperatesinahorizontalmode,forexampleBowuporTrue

motion.Ifyouswitchtoamodewithaverticalview,forexample
Truemotion/Vertical,yoursonarwillneedadifferentgainsetting

forthebeamsdirectedtowardsthebottom.

Toadjustthegain,seeHowtoadjustthegainonpage24.

307672/D

65

SimradSX90

WhatisRCG?

RCGmeans“ReverberationControlledGain”.Thisfunction
comparethestrengthfromeachecho,andthenautomatically
adjusttherangeandecholevelinthesonarpicture.

TheRCGwillremoveunwantedechoesfromtheseasurfaceand
thebottom.IfyouselectsettingStrongthebottomechoeswill
disappearaltogetherifthebottomisat,whileschoolsofsh
closetothebottomwillbeeasiertosee.

NotethatscatteredshmaybemoredifculttospotiftheRCG
functionisactive,asthesecanbemisinterpretedasreverberation.
ItisthereforeimportantthatyouusetheRCGwithgreatcareif
youraresearchingforscatteredsh.

DefaultsettingontheSX90sonarisMedium.

Aboutsearchsectors

TheSX90sonarcantransmitthesoundintwoshapes;Omni
orSector.

Figure14Omnitransmission

AnOmnitransmissionmeansthatthesoundistransmittedina
full360degreescirclearoundthevessel,whileSectormeansthat
itistransmittedinadeneddirectionshapedlikeacone.The

Sectortransmissionwillprovideyouwithalongerrange.

66

307672/D

Figure15Tilt

(CD015005D)

C

B

A

Basictheory

Abouttilt

Thesonarbeamcanbetiltedverticallyinstepsof1degree,and
thechosentiltisshownonthesonarpicture.At0degreestilt
youwilltransmitthesonarbeaminparallelwiththeseasurface,
while90degreestiltwilldirectitstraightdown.

Thechallengewillalwaysbetondatiltthatpreventsthesh
echoestobeburiedinreverberationandbottomechoes.

Ifyouuseasteeptilt(A)theshwilleasilybedisguisedby
thebottomechoes,butastrongRCGsettingwillhelp.Asthe
distancefromthebottomtotheshincreases,theshwill
beeasiertoseewhentheRCGremovesthebottomechoes.
However,thisassumesthattheshechoesareconsiderably
strongerthanthebottomechoes.

Ifyouuseaverysmalltilt(C)youwillnotbebotheredbybottom
echoes.Iftheseasurfaceisgusty,youwillhowevereasilysee
echoesfromthewaves.Theseechoeswillnormallyberather
weak,andwillhardlymoveinrelationtoyourvessel.

Bymeansofamediumtiltangle(B)youwillmostlikelybeable
topickupscatteredshorschoolsifthesearelocatedatsome
distanceabovethebottom.Theupperschoolintheillustration
willappearonthesonarpicturebeforethebottomecho,whilethe
lowerschoolwilleasilybedisguisedbythebottomechoes.Once
againyoucanactivatetheRCGfunctiontoimprovethereading.

Noiseandreverberation

Everytimeyouusethesonarthequalityofyoursearch
operationswilldependonnumerouserrorsourcescausedbythe
naturalenvironmentandphysicalpropertiesofyourvessel.We
distinguishbetweenthetwotermsnoiseandreverberation.

•Noiseisgeneratedbythevessel:engine,propellers,winches,

refrigeratingplantsetc.

•Reverberationiscausedbynaturalconditionsinthesea:

307672/D

temperature,salinity,seastateandbottomconditions.

67

SimradSX90

(CD015005E)

B

A

Themostcommoncauseofacousticnoiseisthepropellerand
thecavitationcausedbyitsrotation.Othertypicalnoisesources
onboardyourvesselsarewinches,refrigeratingplants,power
generators,pumpsandcranes.Ifyouexperienceproblemsyou
thinkarecausedbynoise,trytondoutwhichsystemthatcauses
thenoise,andcontactyourdealerforadvice.

Cavitation

Asthepropellerbladesmovethroughthewater,lowpressure
areasareformedasthewateracceleratesaroundandmoves
pasttheblades.Thefasterthebladesmove,thelowerthe
pressurearounditwillbecome.Asitreachesvapourpressure,
thewatervaporizesandformssmallbubblesofgas.Thisis
cavitation.Whenthebubblescollapse,theycauseverystrong
localshock-wavesinthewater.Thesemaybeaudibleand
canalsodamagethepropellerblades.Inadditiontothis,the
cavitationwillgenerateverystrongreverberation,commonly
seenasaredstripeofechoesbehindthevessel.

Ifyouhavebigproblemswithcavitation,trytoadjustthe
propellerpitchand/orthenumberofrevolutions.

Reverberation

Reverberationisgeneratedwhentheechoesfromyoursonar
transmissionarereectednotonlybyshandobjectsinthe
water,butalsofromthebottomandtheseasurface.

Figure16Reverberation

Theechoesfromthebottomwillvarywithhowuneventhe
bottomis,whatkindofbottomyouhaveunderyourvessel,
(rock,mud,sandetc.)aswellasyourcurrenttiltsetting.The
echofromtheseasurfacewillvarywiththecurrentseastateand
yourcurrenttiltsetting.

Theillustrationdemonstrateshowthebottomandtheseasurface
returnechoesbacktoyoursonartransducer.Insituation(A)you
willseeseveralweakechoesfromthewavesandfromtherockon

68

307672/D

Basictheory

thebottom,youwillstillbeabletoidentifytheschoolofsh.In
situation(B)youwillbeabletoidentifytheupperschoolofsh,
butthelowerschoolwillbehiddenintheshadowoftherock.

Beawareofthatothervesselsclosetoyouwillalsogenerate
reverberationduetothewaterdisturbancecausedbythewake,
thepropellersandthecoolingwaterspill.

Blocking

Themovementofyourvesselthroughthewaterwilloften
—especiallyinhigherseastates—causeairbubblestobe
generated,andthesebubbleswillmovealongthehull.Thisis
calledblocking.Inordertopreventthisnoisefromdisturbing
yoursonaroperations,itisimportanttolowerthesonar
transducerasfardownbelowthehullaspossible.

Checkthenoiseyourself!

Ifyouarebotheredwithacousticorelectricnoise,youcaneasily
runafewsimpleteststoidentifythecauseoftheproblem.

Checkthenoise

1ClicktheSetuptabtoopenthemenu.

2ClicktheTestbuttontoopentheSystemtestmenu.

3ClicktheT estcongbutton,andselectNoiseandVRinthe

parameterdialog.

4ClicktheClosebuttonintheparameterdialogtocloseit.

Thelevelyourreadinthebuttonisthecurrentnoiseinthe
directionofthecursor.ThenoiseisprovidedindB,andthe
numbershouldbeasnegativeaspossible.Forexample,areading
of–50dBmeansthatyouhavelessnoisethanifyouread–40dB.

Inordertoreducethenoise,trytoadjustthepropellerpitchand
thenumberofrevolutions.

Checkelectricalnoise

1Switchoffallelectricequipmentthatcancauseelectrical

noise.

2Switchtheequipmentonagainoneatthetime,andcheck

thesonareverytime.

Withluck,youwillspotwhichofyourelectricalsystemsthat
createthenoise.Todealwiththeproblem,consultyourdealer
and/oracertiedshipselectrician.

307672/D

69

SimradSX90

B

(CD015005F)

A

(CD015005G)

B

A

Layersanddeections

Yoursonaroperationsmayalsobedisturbedbyenvironmental
situationsthatyouareunabletocontrol.Twotypicalconditions
aretemperatureandsalinitylayers,anddeectionscausedby
increasingordecreasingwatertemperature.

Temperatureandsalinitylayers

Youmayexperiencethattemperatureand/orsalinitylayersexist
inthewatercolumn.Sincethespeedofsoundinwaterdepends
onitstemperatureandsalinity ,suchlayerswillcausethesound
beamtobereected.

Figure17Temperatureandsalinitylayers

Ifyoutransmitasonarbeamdowntowardsatemperature
orsalinitylayer(A),itwillbereectedasindicatedinthe
illustration.Theschoolofsh(B)youthoughtyouwouldsee
willnotbevisibleatall.

Deections

Onwarmdays—especiallyduringsummer—theseasurface
willbeheatedbythesun,andthewatertemperaturewill
graduallydecreasewithincreasingdepth.

Figure18Watertemperaturesonwarmdays

70

307672/D

Whenthetemperaturedecreases(A)closertothebottom,the

(CD015005H)

B

A

sonarbeamisdeecteddownasindicatedbytheillustration.The
schoolofsh(B)youthoughtyouwouldseeisnotvisibleatall.

Oncolddays,youmayexperiencetheopposite:thecoldwater
willbeclosetothesurface,andthewatertemperatureincreases
withincreasingdepth.

Figure19Watertemperaturesoncolddays

Basictheory

Whenthetemperaturedecreases(A)closertothesurface,the
sonarbeamisdeectedupasindicatedbytheillustration.The
schoolofsh(B)youthoughtyouwouldseeisonceagainnot
visibleatall,andyouwillalsoseearingofsurfaceechoes.

307672/D

71

SimradSX90

Index

270°/Vertical

mode,47

A

About

on-linehelp,21
thismanual,7

Add

circlemarker,28
gearsymbol,29
ownshipsymbol,29
targetmarker,28
vesselsymbol,29

AGC

adjust,25
menubutton,52,54–55
theory,64

AT

AutomaticTargetTrack

marker,59

Automatic

position

track,39

target

track,39

tilt

program,38

train

program,37

AutomaticT argetTrack

marker,59

B

Basic

information,8
operations,12

Beam

menubutton,51

Beamwidth

theory,65

Bearing

displayread-out,17
menubutton,51,53–54

Bearing(display)

menubutton,57

BearingCard

description,19
Blocking,theory,69
Boundarylines

moving,17
BowMarker

description,21
Bowup

mode,45

Bowup/180°vertical

mode,46

Bowup/Dualvertical

mode,45

Bowup/V ertical

mode,45

BurnonCD

sonarimages,36

Button

menu

basicoperation,15

C

CatchView

menu,61
Cavitation,theory,68
Ci

Circlemarker,59
Circle

marker,59

delete,31
investigate,31

Circlemarker

about,29

add,28
ColourThreshold

menubutton,56
Colours

menubutton,56
CompassCard

description,20
CopytoUSB

sonarimages,37
Cosmetics

descriptions,19

menu,59

menubutton,57
Cursor

control

basicoperation,15

D

DeadReckoning

menubutton,58
DefaultSetting

menubutton,59
Defaultsettings

delete,42
Dene

Mode

buttons,27

Deections

theory,70
Delete

marker,31
sonarimages,34
usersetting,42

DepthDividers

description,21

Description

displaymodes,45
menus,50
Operatingpanel,48

Display

gain

adjust,26
menu,56
mode

270°/Vertical,47

Bowup,45

Bowup/180°vertical,46

Bowup/Dualvertical,45

Bowup/V ertical,45

Dual1,47

Dual2,47

Northup,46

Truemotion,46

Truemotion/Vertical,46
modes,45

DisplayGain

menubutton,56

DistanceRings

description,19

Dual1

mode,47

Dual2

mode,47

E

Externalsync(hronisation)

menubutton,58

F

F

RadioBuoymarker,59

Factorysettings

delete,42

Fishalarm

menubutton,58

Frequency

menubutton,52–53,55

Fullscreen

menubutton,56

G

Gain

72

307672/D

Index

adjust,24
displayread-out,17
menubutton,51,53,55
theory,65

Gear

menubutton,57
symbol

delete,31
investigate,31

Gearproperties

change,30

Gearsymbol

add,29

GeoView

menu,61

H

Horizontal

menu,51
search

program,37

Howto

add

circlemarker,28
gearsymbol,29
ownshipsymbol,29
targetmarker,28
vesselsymbol,29

adjust

AGC,25
displaygain,26
gain,24
RCG,25
TVG,26

burnonCD

sonarimages,36

change

gearproperties,30
changeavalue,16
controlthecursor,15
copytoUSB

sonarimages,37
dene

gearproperties,30

Modebuttons,27
delete

marker,31

sonarimages,34

usersetting,42
hidemenu,23
hidethemenu,12
horizontal

searchprogram,37
investigate

marker,31
keep

sonarimages,34

load

factorysettings,42

usersetting,41
movetheboundarylines,17
position

track,39
poweroff,11
poweron,10
print

sonarimages,36
recall

sonarimages,33
rename

sonarimages,35

usersetting,41
retrievemenu,23
retrievethemenu,12
save

usersetting,41
select

mode,27
simplifymenu,24
sort

modes,28
store

sonarimages,32
target

track,39

trackingline,40
track

position,39

target,39
trackingline

target,40
use

seinecircle,30

trawlsymbol,30
vertical

searchprogram,38
viewtemporarymenu,12

I

Images

sonar

burnonCD,36

copytoUSB,37

delete,34

keep,34

print,36

recall,33

rename,35

store,32

Information

basic,8

Interactivereference

manual,21

Introduction,8

Investigate

marker,31

K

Keep

sonarimages,34

L

Language

menubutton,57

Load

factorysettings,42
usersetting,41

M

M

Targetmarker,59

Marker

AutomaticT argetTrack,59
Circle,59
delete,31
investigate,31
OwnShip,59
PositionTrack,59
RadioBuoy,59
Target,59

Menu

buttons,15
CatchView,61
Cosmetics,59
Display,56
GeoView,61
hide,23
Horizontal,51
main,12
menubutton,57
Objects,59
retrieve,23
Setup,57
simplify,24
Sortmodes,60
Store/Recall,59
structure,14
Systemtest,60
tabs,14
temporary,12
Vertical,53
Vertical180,54
VerticalView,61

Menubutton

AGC,52,54–55
Beam,51
Bearing,51,53–54
Bearing(display),57

307672/D

73

SimradSX90

ColourThreshold,56
Colours,56
Cosmetics,57
DeadReckoning,58
DefaultSetting,59
DisplayGain,56
External

sync(hronisation),

58
Fishalarm,58
Frequency,52–53,55
Fullscreen,56
Gain,51,53,55
Gear,57
Language,57
Menu,57
Modebuttons,56
Movements,58
NoiseFilter,52
Palette,56
PanelBacklight,56
PingSector,51
PPFilter,52,54–55
PulseForm,51,53,55
Range,51,53–54
RCG,52,54–55
Resolution,56
School,58
ScienticOutput,58
Sortmodes,58
Stabilizer,58
Store/Recall,57
Test,57
Tilt,51
Tip,54
Trackwindow,58
TVG,52–53,55
TXPower,51,53,55
Units,57
Usersetting,59
Winddirection,58
Windspeed,58

Menudescriptions,50
MinuteMarkers

description,21

Mode

270°/Vertical,47
Bowup,45
Bowup/180°vertical,46
Bowup/Dualvertical,45
Bowup/V ertical,45
buttons

dene,27
Dual1,47
Dual2,47
Northup,46
select,27
Truemotion,46

Truemotion/Vertical,46

Modebuttons

menubutton,56

Modes

display,45
sort,28

Movements

menubutton,58

N

NoiseFilter

menubutton,52
Noise,test,69
Noise,theory,67
Northup

mode,46

O

Objects

menu,59
Omnitransmission

theory,66
On-linehelp

about,21

Freemode,21

On-linemode,21
Operatingpanel

description,48
Operation

basic,12
Operational

modes,45
OS

OwnShipmarker,59
Ownship

marker

delete,31
investigate,31

OwnShip

marker,59
Ownshipsymbol

add,29

P

Palette

menubutton,56
PanelBacklight

menubutton,56
Pictures

sonar

burnonCD,36
copytoUSB,37
delete,34
keep,34
print,36
recall,33

rename,35
store,32

PingSector

menubutton,51

Position

displayread-out,17
track,39

PositionTrack

marker,59

Poweroff

procedure,11

Poweron

procedure,10

PPFilter

menubutton,52,54–55
theory,64

Presentation

mode

270°/Vertical,47
Bowup,45
Bowup/180°vertical,46
Bowup/Dualvertical,45
Bowup/V ertical,45
Dual1,47
Dual2,47
Northup,46
Truemotion,46
Truemotion/Vertical,46

modes,45

Print

sonarimages,36

Procedure

add

circlemarker,28
gearsymbol,29
ownshipsymbol,29
targetmarker,28
vesselsymbol,29

adjust

AGC,25
displaygain,26
gain,24
RCG,25
TVG,26

burnonCD

sonarimages,36

change

gearproperties,30

copytoUSB

sonarimages,37

dene

gearproperties,30
Modebuttons,27

delete

marker,31
sonarimages,34
usersetting,42

hidemenu,23

74

307672/D

Index

horizontal

searchprogram,37

investigate

marker,31

keep

sonarimages,34

load

factorysettings,42
usersetting,41

position

track,39
poweroff,11
poweron,10
print

sonarimages,36
recall

sonarimages,33
rename

sonarimages,35

usersetting,41
retrievemenu,23
save

usersetting,41
select

mode,27
simplifymenu,24
sort

modes,28
store

sonarimages,32
target

track,39

trackingline,40
track

position,39

target,39
trackingline

target,40
use

seinecircle,30

trawlsymbol,30
vertical

searchprogram,38

PT

PositionTrackmarker,59

Pulseform

theory,64

PulseForm

menubutton,51,53,55

Pulselength

theory,64

Purpose

thismanual,7–8

R

RadioBuoy

marker,59

Range

displayread-out,17
menubutton,51,53–54

RCG

adjust,25
menubutton,52,54–55
theory,66

Recall

sonarimages,33

Referencemanual

interactive,21

Rename

sonarimages,35
usersetting,41

Resolution

menubutton,56

Reverberation,theory,67–68

S

Salinitylayers

theory,70

Save

usersetting,41

School

menubutton,58

ScienticOutput

menubutton,58

Search

program

horizontal,37
vertical,38

Searchsectors

theory,66

Sectortransmission

theory,66

Seinecircle

use,30

Select

operational

mode,27

Setup

menu,57

Sonarimages

burnonCD,36
copytoUSB,37
delete,34
keep,34
print,36
recall,33
rename,35
store,32

Sort

modes,28

Sortmodes

menu,60
menubutton,58

Stabilizer

menubutton,58

Store

sonarimages,32

Store/Recall

menu,59
menubutton,57

Systemtest

menu,60

T

Tab,14
Target

marker,59

delete,31

investigate,31
track,39
tracking

line,40

Targetmarker

about,28
add,28

Temperaturelayers

theory,70

Test

menubutton,57

Theory

AGC,64
beamwidth,65
deections,70
gain,65
omnitransmission,66
PPFilter,64
pulseform,64
pulselength,64
RCG,66
salinitylayers,70
searchsectors,66
sectortransmission,66
temperaturelayers,70
tilt,67
TVG,63

Theory,blocking,69
Theory,cavitation,68
Theory,noise,67
Theory,reverberation,67–68
Tilt

displayread-out,17
menubutton,51
theory,67

Tip

menubutton,54

Track

position,39
target,39

Trackwindow

menubutton,58

Tracking

307672/D

75

SimradSX90

line,40

Trawlsymbol

use,30

Truemotion

mode,46

Truemotion/Vertical

mode,46

TVG

adjust,26
menubutton,52–53,55
theory,63

TXPower

menubutton,51,53,55

U

Units

menubutton,57

Usersetting

delete,42
load,41
menubutton,59
rename,41
save,41

V

VariableRangeMarker

description,20

Vertical

menu,53
search

program,38

Vertical180

menu,54

VerticalRing

description,20

VerticalView

menu,61

Vesselsymbol

add,29

VRM

description,20

W

Winddirection

menubutton,58

WindMarker

description,19

Windspeed

menubutton,58

76

307672/D

Index

307672/D

77

ISBN:978-82-8066-085-5

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