Raymarinehsb2SeriesFishfindersareintendedforrecreational fishfinding.
ThecombinedFishfinder/Chartplott erdevices are intended for recreational
fishfindingandcoursechartplotti ng.Theoptionalchart plotterfunctionis
intendedasanaidto navigationand should not be relied upon as a substitute
for official navigation charts.
SAFETY NOTICES
Thisequipmentmustbeinstalledandoperatedinaccordancewiththe
instructionscontainedinthismanual.Failuretodosocanresultinpersonal
injuryand/ornavigationalinaccuracies. In particular:
1.HIGH VOLTAGE.The LCD display unit contains high voltages.
Adjustmentsrequirespecializedserviceprocedures and tools only available
toqualifiedservicetechnicians–therearenouserserviceablepartsor
adjustments.Theoperatorshouldneverremovethedisplayunitcoveror
accuracycanbeaffectedbymanyfactors,includingequipmentfailureor
defects,environmentalconditions, and improper handling or use. It is the
user’sresponsibility to exercise commonprudenceand navigational
judgements.Thisunitshouldnotberelieduponas a substitute for such
prudenceandjudgement.
Note:ThecombinedFishfinder/Chart plotterdisplayunitsincludeacartridge
holderassemblywhichcontainstwoslotsforC-MAP NT chart cards.
Fishfindersystemsrequir ean appropriate Raymarine transducerunitandinter-connectingcable.Detailsforselectingandinstalling the transducer are
describedindocumentnumber81196,Transducersfor
ersOwner’sHandbook.
2
hsb
SeriesFishfind-
Thishandbookcontainsveryimportantinformationontheinstallationand
operationofyournew equipment.Inorderto obtain the best results in
operationandperformance,pleasereadthishandbookthoroughly.
Thecolorsof the display may seem to vary when viewed against a colored
backgroundorincoloredlight.Thisisa perfectlynormaleffectthatwillbe
seenwithallcolorLCD displays.
Incommonwith allThinFilmTransistor(TFT) LCDdisplays,thescreenmay
exhibitafew(lessthan20)wrongly illuminatedpixels.Thesemayappearas
blackpixelsinalightport ionof the screen, or as coloredpixelsinblackareas.
CAUTION:
Toprovideprotec ti onagainstthedamagingeffectsofUVlight,itis
advisabletoreplacethesuncoverpr ovidedwhenthecolorLCDdisplayis
notinuse.
hsb2 Series Fishfindersv
Raymarine Products and Ser vices
Raymarineproductsaresupportedbya network of Authorized Service
Representatives.ForinformationonRaymarineproductsandservices,
contacteitherofthefollowing:
UnitedStatesRaymarine,Inc.
22 Cotton Road, Unit D
Nashua,NH 03063-4219
USA
Telephone: 1-603-881-5200
Toregisteryourhsb2Seriesdisplayunitownership,pleasetake a fewminutes
tofilloutthewarrantyregistrationcard foundattheendofthishandbook.Itis
very importantthat you completethe owner informationand return the cardto
thefactoryinordertoreceivefullwarrantybenefits.
Techn ical Accuracy
Thetechnicalandgraphicalinformationcontainedinthishandbook,tothe
bestofour knowledge,was correctas it went to press. However,the
Raymarinepolicyofcontinuousimprovementandupdatingmaychange
productspecificationswithoutpriornotice.Asaresult,unavoidable
differencesbetweentheproductandhandbookmayoccurfromtimeto time,
forwhichliabilitycannotbeacceptedbyRaymarine.
10.4"daylightviewablemonochromeor color LCD displaysandthe
Raychart(RC)modelsincludeafullC-MapNT Chartplotter. Withupto600
wattsoutputpower and dual frequency operation,
2
hsb
SeriesFishfinders
provideperformancefrom1up to 3000 ft. In fact, the L1250 Plusand
L1250RCPlusunitsoffer1000wattspoweranda depth range up to 5000 ft.
Connectingan
andtoan
displayed on all three units. Similarly,chartdata can be repeated on a
fishfinder-onlydevicefromanyvia
capabilities.
Thishandbookdescribesthedisplayunitcontrolsanddetailsbothfishfin der
andchartoperations.Controlsthatarespecifictoeitherfish finder or
chartplotteraredescribedinfishfinder or chart sections/chapters.
Note:Many illustrationsinthishandbookshowexamplescreens.Thescreen
youseeon your display depends on your system configurationand set up options,soitmay differfromtheillustration.
2
hsb
SeriesFishfindertoanhsb2SeriesPathfinderPlusRadar
2
hsb
Series Chartplotter enables fishfinder,radar,andchartdatatobe
2
hsb
fromany otherhsb2devicewithchart
1-2hsb2 Series Fishfinders
Introduction
How to Use This Handbook
Ifyouare installingthedisplaysystemyourself,youshouldreadChapter 2
beforeyoustarttheinstallation.Thischapteralsoprovidesinformationthat
willbeusefulif you are connecting your
equipment.
Foranover viewofthedis playunitcontrols,thefishfinderandthechart plotter
systems, read Chapter 1.Chapter 3 will help you start using your system.
FordetailedinformationonfishfinderoperationsrefertoChapter 4.
Forchartplotteroperatingdetails,ref ertoChapter 5 and Chapter 6.
To change the system set up defaults, read Chapter 7.
Chapter2 provides planningconsiderationsanddetailedinstructionsfor
installingthefishfinderdisplayunit.Itshouldbereferredtowhenyouare
readytoinstallthesystem.Detailstoconnectthedisplayto other equipment
2
hsb
via
,NMEA,and SeaTalkarealsoprovided.
Chapter3 explains how to start using the display and describes how to use
someofthebasicfishfinderandchartfunctions.Chapter3alsoprovides
operatingguidelinesfortypicalchartplott erscenar ios; these guidelines
introduceyoutomany of the chartplotterfunctions.
Chapter7 provides instructionsforsettingupyoursystem to suit your
preferences.Youshouldreadthischapte rtodeterminehowtosetupthe
fishfinderandchartplottersystemdefaul ts.
Chapter8 provides informationon user maintenance, and what to do if you
experienceproblems.
TheAppendicesprovideadditionalinformationthatyoumayfinduseful:
AppendixAlists the technicalspecificationsforthefishfinderandforthe
chartplotter.
Transducers can measure water depth, temperature,distancetraveled,and/or
speed.Itisimportantto positionyourtransducercorrectly. For detailson
transducers,includinglocationandinstal lation instructions,seedocument
number81196,Transducersfor
Thehsb2(HighSpeedBus)connectionenablestransferofdataamong
compatibleunits.Forexample,fishfinde rdataistransferred from the
fishfinder(themasterdisplay) via the
andcontroll edonanyother
2
hsb
seriesLCDorCRTdisplay(therepeate r
display).However,ifyouchange,say,depthrangeon one display,itaf fectsall
displaysshowingfishfinderorfishfinder /chart overlay .
2
hsb
connectionandcanbedisplayed
Introduction to
hsb2 Syste ms
Inparticular, you can connect your hsb
SeriesPathfinderPlusRadarandthento a remote hsb2Series Chartplotter to
providefishfinder,chart,andradar functionalityonallthreedisplays.
Fullfunctionalityofthefishfinderisachievedwhenitispartofan integrated
system,withotherequipment(inadditiontootherhsb
SeaTalkorNMEA 0183. Data from this equipment includingpositionand
headingisdisplayedonthedisplayandisusedincalculations.
Itispossibletoconnectto up to eight hsb
provideanintegratedsystem.EarlierHSB(non-Plus)Displayunitswithcan
beupgradedto provide
Raymarinedealerfordetails.
2
hsb
The
systemcanincludeseveral chartplotterdisplays,eachwith two chart
cartridgeslots.Eachdisplaycanaccesstwolocalanduptosix remote chart
cartridges.Chartscanbecontrolledindependentlyoneachdisplay,even when
aremotechartcartridgeisbeingused.Detailsonconnectingtheequipment
aregiveninChapter 2.
Display Unit Featur es
2
SeriesFishfindertoaremotehsb
2
units)connectedvia
2
seriesLCDorCRTdisplays to
2
hsb
compatibility.Pleasecontactyourauthorized
2
•Fishfinder–Dis playsdepth,speed,andtemperature,ifthetransduceris so
•Choiceofchartorientation:HeadUp, Course Up and North Up
Operating Modes
Ifyouhave a combined Fishfinder/Chartplotterunit,orhaveanhsb2Series
ChartplotterconnectedtoaFishfinder,threefull-screenmodes–fishfinder,
chartanddatalogareavailable;youselecttheoperatingmodeusingthe
DISPLAY keyasdescribedinChapter 3.
You canalsosetWindowsOntosplitthedi spl ayintotwohalf-screenwindows
toshowsupplementarydata,orto displayfishfinderand chartsimultaneously.
Themainoperatingmode(fishfinderorchart)isdisplayedintheupper
window;youchoose what is displayedin the lower window.
Inaddition,ifyou have an
connected,youcansetthedisplayto radar mode; this provides similar
functionalitytoacombinedPathfinderRadar/Chartplott er.
®
chart cards (C-Cards)
2
hsb
SeriesPathfinderPlusRadardisplay
Ifyouonly have an L760 Plus or L1250Plus fishfinder-onlyunitconnected,
onlyfishfindermodeisavailable.
T able 1-1:Window Options for Combined/Integrated Systems
Full-screen
mode
Fishfinder ModeDepth/temp, Chart, CDI, BDI, or DataDepth/temp, Chart or CDI, BDI
Chart Mod eCDI, BDI, Nav Data or F ish finderC DI, BDI, Nav Data, Fis hfinder o r
Radar Mode Not AvailableCDI, BDI, Chart or Nav Data
Data Log ModeHalf-screen Windows not availableWindows not available
Fordetailson the radar,refertotheOwner’sHandbooksuppliedwithyour
radar.
Note:MARPA functionalityisavailableonthefishfinderdisplayifyou have
anintegratedsystemwithaPathfinderradarmasterdisplaythatincludes
MARPA as a primary function.
Operating Modes
DetailsonselectingwindowsaregiveninChapter 3.
1-8hsb2 Series Fishfinders
1.2 The Fishfinder Display
The F ishfinder
Display
Whenyou first turn the displayunit on and select fishfindermode, the
scrollingbottomgraphisdisplayed.Thisisagraphicalrepresentationofthe
echoesseenby theFishfinder.Astimepasses, thisdisplayscrolls fromrightto
leftandbecomesa record of the echoes seen. A typical display is shown in
Figure 1-2.
Theimagesat the right hand side of the display are the most recentechoes.
Someechoesindicatefish,andothersshowthe bottom.It can also indicate
bottomstructures,suchasareeforshipwreck.Theupperand lower depth
rangelimitsareshown.
You cancustomizethefishfinderbychoosingwhatis displayedand how it is
displayed(includinglanguageandunits).Forexample,youcansetthe scroll
speedofthebottomgraphdisplay,andyou can select the range to adjust the
amountofdetaildisplayed.
You can view the cursor positionandavarietyofdata(suchasspeed,heading
anddepth)fromthetransducerandotherequipmentinuser-selectabl edat a
boxes.Thesedataboxescanbe moved around the screen and they can be
switched on or off.
Chapter 3 includes detailsonadjustingthedisplay, other set up options are
describedinSection 7.3 and Section 7.4.
•Frequency–youcanselectthetransducerfrequency, 50 kHz for wide cov-
erageanddeepwater,200kHz for adetailedview,bothfrequenciessimultaneouslyorauto-frequency. Thedefaultsettingisauto-frequency,which
determinestheoptimumfrequencyofoperationbasedonthecurrent
depth.
•BottomLock – changes the operating mode to re-set the bottom. It pro-
videsabottom-upview:the bottom is used as the reference, its image is
flattenedanddepthsaredisplayedhere.Bottomlockmodeisusedprimarilytofilter-outthebottomstructure and display fish detailsonly.
directlybelowthetransducer.The A-Scope window also displays the patentedBottomCoveragewidthindication.
•Zoom–enlargesallorpartofthebottomgraphdisp lay. Y ou can selectx2,
x4or x6 magnificationandthe zoom area can be automatically or manuallyadjusted.
You canselectZoom,Bottom Lock or A-Scope to be vertically split with the
bottomgraphdisplay.Alternatively, Zoom or Bottom Lock can be displayed
inplaceof the bottom graph display.
Ifyouchoose dual frequency,the scrollingbottomgraphisdisplayedinboth
frequencies,splithorizontall y. Zoom, BottomLockor A-Scope can be
displayedwiththedualfrequencygraph.
TheL755RC,L760RC,andL1250RCPlusFishfindersincludeaChar tpl otter.
Thechartplotterincludesasmall-scaleworldmapanddetailednavigation
information is displayed when a cartographic chart card is installed. A plotter
modeis providedto enable route plottingand trackingat largescaleseven
whena chart card is not installed A typical chartplotterscreenisshownin
Figure 1-4.
Note:For an L760 Plus or L1250 Plusfishfinder-onlyunittohaveaccessto
chartplotterfunctionali ty,itmustbeconnectedtoan
ThechartplotterusespositioninformationfromaGPS,DGPSor Loran-C
instrument.Oncetheposit ionfix has been established,yourvessel’sposition,
ifon screen,is shown as a boat shapepointinginthedirectionofthecurrent
heading(orCOGif heading data is not available). If no heading or COG data
isavailable,thevesselisshownasa circle.
Thechartplotterscreenincludesastatusbarthatdisplayschartscale,with
eithercursorposition,rangeandbearingor, when the cursor is homed to the
vessel(bypressingFIND SHIP),vesselposition,SpeedOverGround(SOG)
andCourseOver Ground (COG).
Anywaypointsyouhave placedare displayed(unlessyou turned them offin
ChartSetUp as described in Chapter 7) and the current routeisshown.
Informationcanbeviewedon-screenbypositioningthecursorovera
waypoint,currentrouteorchartobject.Thechartplotterscr eenca nalsoshow
additionalinformation,dependingonyourcurrentlyselectedoptions,setup
selectionsanddataavailablefromotherequipment.
Anexample chartdisplay,in its default configuration,withachartcard
installed,isshowninthefollowingillustration.
Setupoptionsall owyou to customizethechartbychoosingwhat is displayed
(includingcartogr aphicfeatures),howi tis displayed(includinglanguageand
units),headingmodeandhowthechartplotteroperateswithother
You canalsoview the cursorpositionand a variety of data from other
equipment(forexample,speed,h eading,depth,wi nd,andtideinfo rmati on)in
asetof user-selectabledataboxes.Thecursorboxanduser-sele cted data
boxescanbe moved around the screen and they can be turned on oroff.
Note:Thecurs oristhecross-hairsymbol (+)visibleonthe display.Youmove
thecursorusingthetrackpadanduseit to select a position or item on the
chart.
Thecontrolkeys are showninFigur e 1-6.Theyareback-lit fornight-timeuse
whenthe displaybrightnessisdimmed.When you use a control, a help
messageisdisplayedatthetop of the screen (unless you switch help off as
describedinChapter 7). The followingparagraphsdescribethecontrolsand
on-screenfacilities.
Operating Controls
Soft keys
Figure 1-5:7" LCD Display Control Keys
Dedicated keys
Dedicated
keys
Trackpad
D3596-4
1-16hsb2 Series Fishfinders
T rackpad a nd
Cursor
Dedicatedkeys
Trackpad
Figure 1-6:10.4" LCD Display Control Keys
T rackpad and Cursor
Thetrackpadhasseveralfunctions:
•To move the cursor around the screen
•To selectan item from a pop-up menu
•To adjust a variablesoftkey control
Thecursorisused to:
•Selectapositiononthescreen
•Selectanitem,for example, chart object on the chartplotter
•Pan the chart display
Moving the Cursor
You can press on any of the foursectionsofthetrackpadtomovethecursorin
thatdirection(up, down,leftorri ght),orpresstwosectionsatthesametim eto
movediagonally.The cursor moves faster as you continue to press the
trackpad.Thecurrentcursorpositionisshowninthe cursor databox (if
selected).
Softkeys
Dedicatedkeys
D5440-1
Note:During many operations you cannot move the cursor around the
screen;ifyoucannotmove the cursor using the trackpad, check the default
softkeysare displayed(unlesstheyhave beenswitchedOFFin systemsetup).
Ifnot,pressENTER
untiltheyaredisplayed.
Chapter 1: Overview1-17
Thecursorisnormallydisplayedasa crosshair.However,inchartmode,if
youhave not moved the cursor for more than five seconds, when you next
moveitthecursoris outlinedby a circle so it is easier to locate on the screen.
Someitemson the fishfinder/chartplotterscreen,suchasthecursorhave
informationassociatedwiththem.Mostinformationisdisplayedinadata
box.Thecontext-sensitivecursorallowsyoutomovedataboxes.Inthecaseof
FishfinderVRMdata,depthisdisplayedontherighthand side of the
horizontalindicator,anddistanceisdisplayedatthe top of the vertical
indicator.
Dedicated Keys
Ruler lineChart
The dedicated keys: DISPLA Y , MARKS , GAIN, VRM /EBL, MUL TI,
ALARMS, RANGE, ENTER, CLEAR, MENUand POWER havefixed
functions;thefunctionsaresimilaronall
ALARMS isusedto set up the system alarms on both a fishfinderanda
chartplotter.
Whenyou press a dedicated key,oneofthefollowinghappens:
i. The associatedoperationisperformed,e.g.,changechartscale
(RANGE).
ii. A pop-upmenu is displayed, providingfurtheroptions.
iii. A set of soft keys is displayed, providing furtherfunctions.
Asyou press a key,asingleaudiobeepconfirmsthekeyaction.Ifthe keypressisnotvalidfor the current screenormode, three rapid beeps sound to
indicatethatnoresponseisavailable.Ifrequired,youcanturnthekeybeeps
offaspartofyourset up procedure (see Chapter 7).
Soft Keys
Thefourkeys below the screen are called soft keys because their functions
changeaccordingtotheoperation.Thesoftkeysaregroupedintorelatedsets
andsubsetsprovidingaccesstothevariousfunctions.Thesoftkeylabelsare
displayedon thescreenjustabovethekeys.The defaultsoftkeysaredisplayed
untilyoupressakey, or select an item on the screen;thesoftkeysassociated
withtheactionarethendisplayed.
Whenyou press a soft key one of thefollowinghappens:
i. The associatedoperationisperformed,e.g.,50 kHz.
ii. A sub-setofsoftkeys is displayed, providingfurtherfunctions.
iii. A pop-upmenu is displayed,providingfurtheroptions.
Aswith dedicatedkeys,whenyou press a soft key a single audio beep
confirmsthekeyaction.Ifthekey-pressisnotvalidforthe currentscreenor
mode,threerapidbeepssoundto indicatethatnoresponseisavailable.If
required,youcanturnthekey beeps offas part of your set up procedure (see
Chapter 7).
Chapter 1: Overview1-19
Pop-Up Menus
Pop-upmenususuallyprovidesetup options. When a pop-up menu is onscreen, a set of associated soft keys is also displayed as shown in Figure 1-7.
ALARMS SET UP
ARRIVAL ALARM
OFF TRACK ALARM
ANCHOR ALARM
COUNTDOWN TIMER
ALARM CLOCK
SELECT ARRIVAL
ALARM RADIUS
0.01nm
ON
OFF
00:33:00
OFF
D4265-1
Figure 1-7:Typical Pop-up Menu
You usethetrackpadto selectan optionfrom the menu, then use the
appropriatesoftkeytosettheoption.Forexample,youcan togglethe OFF
TRACK ALARM on/off.
Pop-Up Menus
Database Lists
Thewaypoints,routesandtracksthatyoucreateonthechartplotterarestored
indatabaselists.You can viewtheselistsandselectitemsforediting.
1-20hsb2 Series Fishfinders
Database Lists
WAYPOINT LIST
SYMBOL NAME
WAYPOINT 001
WAYPOINT 002
WAYPOINT 003
WAYPOINT 004
WAYPOINT 005
POSITION
BRG _186°
TEMP
DATE
GOTO
WAYPOINT
---°
--/--/--
EDIT
WAYPOINT
C
50°21^966N
001°20^368W
RNG _21.0nm
DEPTH
TIME
MAKE NEW
WAYPOINT
m
---
--:--:--
WAYPOINT
TRANSFER
D4262-2
Figure 1-8:Typical Database List
Aswith pop-up menus, when a database list is on-screen, a set of associated
softkeysisalsodisplayed;youusethetrackpadtoselectanitemfromthe list,
thenusetheappropriatesoftkeytoeditthei tem. Forexample,youcanerasea
waypointora route.
Chapter 2: Installation2-1
Chapter 2: Installation
2.1 Introduction
Thischapterprovidesinstallationinstruct ions for the hsb2SeriesFishfinders.
SimplesystemssuchasthatinFigure 2-1below,orintegratedsystemssuchas
that in Figure 2-2 are explained (see Section 2.7). Details for mounting the
Note:Ifyouwishtopracti ceusing the displaybeforeinstallation,u sethe simulatormode,asdes cribedinChapter 3. For power,connecta12Vor24VDC
powersupply,attachingtheredwireviaa quick blow fuse (6A for 12V or 4A
for24V)to positiveand the black wire to negative.
Ifyouareconnectingyourdispla yt ootherequipment (including another
•Atleast3 ft (1 m) from any equipmenttransmittingorcablescarrying
radiosignals,e.g.,VHFradios,cablesandantennas.InthecaseofSSB
radios,thedistanceshouldbeincreasedto7 ft(2 m).
•Morethan 7 ft (2 m) fromthepath of a radar beam. A radarbeamcan
normallybeassumedtospread20 degrees aboveand below the radiatingelement.
•Theequipmentis suppliedfroma separatebatteryfromthatusedfor
enginestart.Voltagedropsbelow 10 V, andstartermotortransients,can
causetheequipmentto reset.Thiswillnot damage theequipment,butmay
causethelossof some information and may change the operating mode.
•Raymarinespecifiedcablesareused.Cuttingandrejoiningthesecables
cancompromiseEMC performanceand must be avoided unless doing so
isdetailedintheinstallationmanual.
IfyourRaymarineequipmentis to be connected to other equipment using a
cablenotsuppliedbyRaymarine,asuppressionferriteMUSTalwaysbe
attachedtothecableneartotheRaymarineunit.
Chapter 2: Installation2-5
2.2 Unpacking and Insp ecting the Components
Unpackyoursystemcarefully,topreventdamageto the equipment. Save the
cartonandpacking,incaseyouneedto returna unit for service.
Whenplanningthedisplayi nstallation,thefollowingshouldbe considered to
ensurereliableandtroublefreeoperation:
•Convenience:Thecontrastandcolorsseenon all LCD displays vary
slightlywithviewingangle;thisismorenoticeableonthelefthand side.
Powertheunit and select a suitable mountinglocationpriortoinstalling
thedisplay.Themountinglocationshouldbeeasilyaccessibletoallow
operationofthefrontpanelcontrols.
•Access:Theremustbesufficientspacebehindthedisplaytoallowcable
connectionstotherearpanelconnectors,avoiding tight bends in the cable.
Location
Equipment
Selecting the
•Interference:Theselectedlocation should be far enough away from
devicesthatmaycauseinterference,suchasmotors,generatorsandradio
transmitter/receivers (see the EMC guidelinesearlierinthissection).
•Magneticcompass:Mount the displayunitat least 3 ft (1m) away from a
magneticcompass.
•Cableruns:The displayunitmustbelocatednearaDCpowersource.The
powercablesuppliedis4.9 ft (1.5m), but a longer cable can beused if
required:refertoSection 2.4.
Themaximumlengthof cable betweena master display and the transducerunitshouldnotnormallyexceed30 ft (10 m). If you need to usea
longercable,referSection 2.4
•Environment:Donotrestrictairflowattherearofthedisplayunit;
thedisplayincorporatesColdCathodeFlorescentLamps(CCFL),
whichhavea reducedlightoutputwhen the unit is veryhot.Ventilationisrequiredtopreventtheunitfromoverheating.
•You needto attachthe power cable and the transducer cable. Additional
cableswillberequiredifyou are installingan integratedsystem.
•Allcablesshouldbe adequatelysecured,protectedfromphysicaldamage
andprotectedfromexposuretoheat.Avoidrunningcablesthroughbilges
ordoorways,or close to moving or hot objects.
•Acutebendsmust be avoided
•Wherea cable passes throughan exposed bulkheador deckhead, a water-
tightfeed-throughshouldbeused.
•Securecablesin placeusingtie-wrapsorlacingtwine.Coilanyextra cable
andtieit out of the way.
You needto run the following cables:
•Power/NMEAInputcable,supplied withthedisplayunit.Thishasacon-
nectorplugatone end for connecting the display unit, and 7 wires at the
otherendforconnectingthepowersupplyand optionalNMEAinputs(see
IntegratedSystemsonpage 2-18).
Cable Runs
•Transducercable,suppliedwiththetransducer.This30 ft (10 m) cable
hasaconnectorplug(witha no uternut that you must attach)atoneendfor
thedisplayunitorextensioncable.
•NMEAOutput cable, optional, with an NMEA OUT connector at one
endonly.
Power Cable
Thehsb2SeriesFishfinderisintendedforuseonships’DCpowersystems
ratedfrom10.7V to 32 V.
A5 ft (1.5 m) power cable is suppliedforconnectingtheship’sDC power to
thedisplayunit.Thepowercablemaybeextendedbyupto60ft(20m)using
awire gauge of AWG12(3.5 mm
T ransducer Cable
A30ft(10m)cableissuppliedwiththetransducer.Thetransducercablemay
beextendeduptoamaximumof60ft(20m)usingoptionalexte nsion cables.
Fordetails,seedocument number 81196,Transducers for
FishfindersOwner’s Handbook.
2
)orgreater.
hsb
2
Series
2-12hsb2 Series Fishfinders
2.5 Mounting the Display Unit
Thehsb2SeriesLCDdisplayunitiswaterproof toCFR46andcanbeinstalled
eitheraboveorbelowdeck.The display unit can be mounted using the
1. Loosen the knobsand remove the mounting bracket from the display unit.
2. Mark thelocationsofthemountingbracketscrewholesonthemounting
surface.
3. Use the screws suppliedtoattachthemountingbracketatthemarkedlocations.
4. Attach the displayunittothemountingbracket,adjustthedisplayangle,
andtightentheknobs.
Chapter 2: Installation2-13
Console Mounting
Thedisplayunitcan be consolemounted if required, usingthe optionalflushmountingkit(Raymarinepart number M92708for7”Fishfinderdisplays and
E55033for10.4” Fishfinderdisplays).
CAUTION:
Makesuretherearenohiddenelectricalwiresorotheritemsbehindthe
locationbeforeproceeding. Make surethereissufficientrearaccessfor
mountingandcabling.
1. Check theselectedlocationfortheunit.Aclear ,fla tareaatleast9 in (230
mm) wide by 8¼ in (210 mm) high, with at least 6.9in (176 mm)of clearancebehindthepanel,is required.
2. Unpack theflush-mountingkit.
3. Using thesuppliedtemplate,traceoutthedisplayunitopening.
4. Drill a½in (12.7 mm) pilot hole in eachcornerofthecut-out area.
5. Using asuitablesaw, cut along the inside edge of the cut-out line.
Display Unit
Mounting the
6. Remove themountingbracketknobsand bracketfromthe displayunit.
Makesure that the unit fits in the cut-out area.
Iftheoptionalscrewfittingisrequired,drillfour3/16in(5mm)holesas
indicatedonthetemplate.
Screwthestudsinto the holes provided at the rear of the display.
7. Connect the DC power cable,transducercable,andany other accessory
cablestothedisplay.Avoid tight bendsin the cables.
8. Place the gasketontheunit and slide the unit into the panel cut-out.
9. Use theflush-mountingkittosecuretheunitto the console.
Alternatively, placea spacer over each of the four studs and secure with
Ifyouneed to extend the wire, the extension wire should be an 8mm braid or
AWG 10 (6.0 mm
2
) multi-stranded cable.
Ifyourvesseldoesnot have an RF system,connectthedrainwiretothe
negativebatteryterminal.
DC Power Connection
Thehsb2SeriesFishfinderisintendedforuseonships’DCpowersystems
ratedfrom10.7V to 32 V.
Thepowerconnectionto the display should be made ateitherthe output
ofthebatteryisolatorswitch,orat a DC power distributionpanel.
Raymarinerecommends that power is fed directly to the display via its
owndedicatedcablesystemandMUSTbeprot ectedbyathermalcircuit
breakerorfuse,installedclosetothepowerconnection.
Usea6 amp fuse for 12V systemsor4 amp fuse for 24/32Vsystems.
Beforeattachingthetransducercable,youwillneedtoattachtheconnector
nutandsplitring.These items,plus a wedge tool, are included in the
transducerpackaging.
Thetransducercableisattachedtothe7pin male connector marked
TRANSDUCERontherearofthedisplayunit.Howy ouconnect the cable tothe
displayunitdependsonthe type of transducer you have installed:
•Combinedspeed/temperat uretransducershavea3pinfemaleconnector
thatrequiresthe use ofanadditionalY-shapedcable(RaymarinepartnumberE66022)toattachtothe7pinconnectoronthedisplay. This Y-cableis
includedwithyourspeed/temperaturetransducer.
Display Unit
Attachthe7 pin female connectoron the Y-cabletothedisplayunitthen
attachthetransducercabletothe3pinmaleconnectorontheY-cable.
If being installed in conjunction with a speed/temperature transducer,
attachthe7pinfemaleconnectoron theY-cable to the displaythenattach
thetransducercabletothe7pin male connector on the Y-cable.
Note:If yoursystemrequiresbotha Y-cable and a transducer extension cable,ensurethatyouconnecttheY-cableto the display unit and the extension
cabletothetransducer.
Theconnectorpinsareshown in the following diagram, together with the
connectionsandwirecolors;thisisinformationisprovidedasanaidtofault
diagnosis.
CAUTION:
Donotcut the transducer cable or remove the connector. Donottryto
shortenorsplicethecable.Ifthecable is cut, it cannot be repaired.
Cuttingthecablewillalsovoid the warranty.
TheDC power and NMEA input shouldbeconnectedatthe rear Power/
NMEAseven-pinconnector.Theconnector(viewedfromtheoutside)andpin
functionsareshowninthe following diagramand table. The NMEA Input is
detailed in Section 2.7.
Ifthepowerconnectionsareaccidentallyreversedthesystemwillnot
work.Useamultimeter to ensure that the input powerleadsare
connectedforcorrectpolarity.
Switchoffthe displayunit beforeyou removethe power cord.
TheRED wire must be connected to the feed from the positive(+)battery
terminalandtheBLACK wire to the feed from the negative (–) battery
terminal.Theshieldedwire(screen)shouldbeconnectedtotheship’sRF
groundaspreviouslydescribedinGroundi ngtheSystemonpage 2-14.Any
unusedwiresshouldbe insulatedandtaped back.
2-18hsb2 Series Fishfinders
EMC Conformance
Alwayschecktheinstallationbeforegoingtoseatomake sure that it is not
EMC Conformance
affectedbyradiotransmissio ns,engi nestarting, etc.
•A second display, either CRTorLCD,canbeconnectedvia
SeaTalk)torepeatfishfinder, chart and/or radar informationat a remote
location.
Note:If you have an integratedsystemwith a PathfinderPlus radar master
displaythatincludesMARPAas a primary function, MARPA functionalityis
availableontheLCD repeaterdisplay.
•Datacanbe received via SeaT alkorNMEA,someofwhichwillincrease
thefunctionalityofthedisplay.Otherdatacan be viewed on the display.
hsb
2
(and
•Datacanbe transmittedviaSeaT alk and NMEA to enhance other equipment.
•Someincomingdata can be converted across the communication link and
re-transmitted.
Power for External Equipm ent
Externalequipmentcannotbe poweredfromthedisplay’sSeaTalk
interface. It must be powered fromtheship’s supply or via a SeaTalkbus.
EnsurecorrectpolarityoftheSeaTalkconnection.
Forsystemswherethe ship’s power source is 24 V only, you may need to
installa24V to 12 V DC converter.This is only necessaryif the products
beingconnectedtothedisplayare:
•NMEAcompatible,butoperate onlyfrom 12 V (for example, compass,
GPS and some navigators)
TheDC-DC converter must conform to the following specification:
T able 2-2:DC-DC Converter for External Equipment
Input21 to 32 V DC
Output13.6 V DC, isolated
LoadContinuo us current rating, in excess of requir ed load
Chapter 2: Installation2-19
High Speed Bus ( hsb2)
TheHighSpeedBus(hsb2)providesextremelyrapidtransfe rofdatabe tween
masterandrepeaterdisplays.With an
dataavailablecanbecontrolledanddisplayedbyanyunit.
Masterfunctionalityisprovidedbythedisplaywiththeappropriate
transducer/scannerconnected as defined in Table 2-3 . You can have a master
fishfinderandamasterradarinthesame system.Data on master units are
displayedonallconnectedrepeaterunits.
Note:If the master displayis an L1250 Plus or L1250RC Plus,repeaterdisplayscantakeadvantageof these units’extendedpower(1000wattsvs.600
wattsRMS)and depth range (5000 ft vs.3000 ft).
Series Pathfinder Plus Radar and then to a remotehsb2Series
Chartplottertoprovidefishfinder,chart,andradarfunctionalityonallthree
displays.You can displaysomecombinations,suchasfishfinder/chartor
radar/chart,inhalf-screenwindows.
Note:FishfinderS TCcannot beadjustedona repeaterdisplay,norcan depth
offset,speedandtemperaturecalibrationbeset.Frequencycan beselectedon
eithermasterorrepeater,butthesamefrequencyisused on all displays.
The
2
hsb
systemcanincludeseveral chartplotterdisplays,eachwith two chart
cartridgeslots.Eachdisplaycanaccesstwolocalanduptosix remote chart
cartridges.Chartscanbecontrolledindependentlyoneachdisplay,even when
aremotechartcartridgeisbeingused.
Thesystemcanalsoincludeup to two existing HSB (non-Plus) display units.
EarlierHSB(non-Plus)Displayunitswithcanbe upgraded to provide
hsb
2
compatibility.
2
hsb
T able 2-3:
Series Master Displays
Master FunctionPlus Series Display TypeTransducer/Scanner
RadarR70, RL70, RL70C, RL70RC, RL70CRC,
ChartRC520, RC530, RC631
FishfinderL755RC, L760, L760RC, L1250,
R80, RL80, RL80C, RL80RC, RL80CRC
RL70RC, RL70CRC, RL80RC, RL80CRC,
L755RC, L 760RC, L125 0RC
L1250RC
Any Pathfinder Series
Scanner
Display includes a two-slot
chart cartridge
Fishfinder transducer
2-20hsb2 Series Fishfinders
a
n
e
Note:EarlierHSB(non-Plus)Displayunitswithcanbeupgradedto provide
5. Earlier non-Plus displays can also be outfitted with a software-only
upgrade,whichenables
2
hsb
compatibility. However, thesesoftware-only
upgradeddisplaysarenottruePlusunits.Theycan onlybe used point-topointandmustnot use theInlineTerminatorplugbecause theyarealready
terminatedinternal ly.
AnIn/Outconnectorcableisprovidedfor connecting to another
display.
Note:The HSB cables have ferrite clamps attachedat each end to ensure
hsb
2
Series
EMCconformance.Thecablesar eavailable in lengthsof1,3,6,10and20m.
2
Chapter 2: Installation2-21
HSB connector
HSB connector
Pin Pin name Function
1 CGND Screen
2 HSVB_POS SeaTalk HSB
Pin 1, screen
Pin 3, blue
Pin 2, white
3 HSVB_NEG SeaTalk HSB
In
Rear of Display Unit
Figure 2-12: HSB Connector
Thedisplayunitissuppliedwitha blankingplug. This should be attached to
theHSBcableportif theHSBportisnotused.I fthe displayunitisinstalledin
anexposedposition,sealtheblankingplatewithsiliconcompound.
HeadingChart: modes/ vectorsCompass connected to SeaTalk bus ,
PositionChart: own vessel position
MOB (also requires speed and HDG
data)
1
23
SeaT alk and NMEA
HSB
D4253_2
NMEA Compass
SeaT alk GPS connected via Auxiliary JB
Existing GPS Navi gator vi a SeaT alk bus
Existing GPS (or Loran-C) navigator with
NMEA output
WaypointChart: Waypoint and route transferExisting GPS Navigator via SeaT alk bus
Headingdatashouldideallycontainbothmagneticandtrueheading.Ifonly
oneisavailablethena source of magnetic variationshouldbeconnected.
Someotherradarsand chartplotterscanexchangetheircursorsviaSeaTalk.
LockedheadingshouldbeusedforCourseUpifavailableviaSeaTalk.Other
dataconnectedviaaSeaTalkbus or via NMEA is generally displayed in data
boxes,e.g.,depth,apparentwindangleand speed,time.
Existing GPS (or Loran-C) navigator with
NMEA output
2-22hsb2 Series Fishfinders
Note:TheFishfinderusesitsowndepthdata,ratherthananyotherdepthdata
onSeaTalk.Ifthereisno other depth data on SeaTalk, Fishfinder depthis
transmitted.Ifspeedandtemperature data are availableonSeaTalktheFish-
SeaT alk and NMEA
finderusesthisdata; if thisdataisnotonSeaTalkfromother instruments,itis
transmittedbytheFishfinder.
In
FordetailsofreceiveddatarefertothetableinAppendixD: SeaTalkand
NMEA Data. Examples of SeaTalkandNMEAsystemsareshownin
Figure 2-13 and Figure 2-14.
GPS
SeaTalk
SeaTalkSeaTalk
HSBHSB
12/24V Supply
Scanner
12/24V Supply
hsb
2
Series Radarhsb2 Series Chartplotterhsb2 Series Fishfinder
Transducer
SeaTalk
Figure 2-13:
SeaTalk
Course Computer
SeaTalk
SeaTalk
2
hsb
Series Integrated System w ith Repeater Displa ys and SeaT alk
Distribution Panel
12/24V
Supply
12/24V
Supply
12/24V Supply
12/24V Supply
D5578-2
Chapter 2: Installation2-23
Compass
Transducer
GPS
2
Series Fishfinder Display
hsb
NMEA
NMEA
NMEA Out
12/24V Supply
HSB
SeaTalk
Non SeaTalk
Pilot
2
Series Repeater Display
hsb
In
SeaT alk and NMEA
Distribution
Panel
12V Supply
D4868-3
Figure 2-14: Integrated System with Repeater Display and NMEA Instruments
SeaT a lk
TheSeaTalk standardwasoriginallydevelopedbyAutohelm(partofthe
Raymarinegroup),andallowscompatibleinstrumentstobeconnectedbya
singlecablecarryingpoweranddatain/out.Thismeansthatadditional
instrumentsandfunctionscanbeaddedtoa SeaTalk system, simply by
pluggingthemintothenetwork.
SeaTalkisa precise,high-speed,bi-directionalprotocolwhic hisflexible
enoughtoadaptto any number of instruments, without a central processor.
SeaTalkequipmentcanalsocommunicatewithnon-SeaTalkequipmentvia
theNMEA standard.
TheSeaTalk input/outputshouldbeconnectedattherearSeaTalk 3-pin
connector.This appearsas follows, when viewed from outside:
2-24hsb2 Series Fishfinders
SeaTalk In/Out
In
SeaT alk and NMEA
1. Red (No internal connection)
2. Screen (0V)
3. Yellow (Data)
D3232-4
Figure 2-15: SeaTalk Connector
T able 2-5:Sea Talk Connections
Pin No.FunctionColor
1+12 VRed
20 VShield
3DataYellow
Note:
1. The displaydoesnot supply12 V via the SeaTalkconnector, nordoesthe
SeaTalkconnectorr equire12Vto operate.
12V is requir edforotherSeaTalk units (except whereSeaTalk is connectedonlybetweentwo
hsb
2
displays).
2. If you areconnectinganactivecompasstotheradar, the NMEA inputhas
priority.Youshould,therefore,useanNMEA input channel (see Power
andNMEAInputConnection)ratherthantheSeaTalkinterface,unlessthe
compassonlyhasa SeaTalkoutput.
To connect the displayunitto the SeaTalk bus, connect a standard SeaTalk
cablebetweentheSeaTalkconnectorontherearofthe display and a SeaTalk
instrumentortheSeaTalkbus.
StandardSeaTalkcablesareavailableinarangeoflengths(partnumbers
W284to W287), and cables for connecting to SeaTalkunitswithround
connectorsarealsoavailable(partnumbersD187orD188),seeSection 2.2
forfurtherdetails.
Chapter 2: Installation2-25
NMEA 0183
TheNMEA 0183 Data Interface Standardwasdevelopedbythe National
MarineElect ronicsAssociationofAmerica.Itisaninternationalstandardthat
enablesequipmentfrommanydifferentmanufacturer stobeconnected
together and to share information.
Theinformationispassedin“sentences”,eachofwhichhasathree-letter
sentenceidentifier.Whenyouchecktoseeifone item will “talk” toanother,
makesurethatthe two items both use the same sentence identifiers. For
example:VTGcarriesCourseand SpeedOver Ground data; GLL carries
latitudeandlongitude;DBTcarrieswaterdepth;MWVcarriesrelativewind
angleandwindspeeddata.
TheNMEA0183standardcarriessimilarinformationto SeaTalk.However ,it
hastheimportantdifferencethatonecablewillonlycarryinformat ioninone
direction.ForthisreasonNMEA0183isgenerallyusedto connect a data
receiverandatransmittertogether:forexample,acompasssensor
transmitting heading to a radar,ora GPS sensor (orChartplotter) transmitting
positionandnavigationdatatoaradar.
NMEA Input Connecti on
Thetwo NMEA/Power input connectorsare normally used for non-SeaTalk
Compass(heading)dataorGPS. It can also be used for additional navigation
data(ifnotprovidedviaSeaTalk).
Connecttheinput(s)totheorangeand yellowwires (Channel1) and/or the
greenandbluewires(Channel2).Refer to Power and NMEA InputConnectiononpage 2-17for further details.
In
SeaT alk and NMEA
Forexample,toconnecta RaymarineHeadingSensortotheNMEA Channel
1input,c onnectthecablesandpowersupplyusingasuitab leconnectorblock,
asshown in the diagram below .Ifinstalled,itmaybeconvenienttoconnect
thepowerto the SeaT alk auxiliaryjunctionboxdescribedinthefollowing
section.
Figure 2-16: NMEA Input Connection
Red
Yellow
Black
+12 V
+ NMEA Data (orange)
-- NMEA Data (yellow)
0V
D3604-1
Auxiliary Junction
2-26hsb2 Series Fishfinders
Using the SeaT alk Auxili ary Junction Box
Ajunctionbox is usedtoconnectthe SeaT alksystemtothehsb2Seriesdisplay
Using the SeaT al k
unit.ThisjunctionboxenablestheSeaTalk bus, power and GPS to be
connected.
Box
Ifpoweris not already available(viaanotherSeaTalkinstrument),the
junctionboxcanbe used to apply power to the SeaTalkbusforother
applications.Thejunctionboxmayalsobeused for other purposes, e.g.,
supplyingpowertoa flux gate compass and routing the compass data to the
2
hsb
SeriesdisplayNMEAInconnection,oralternatively, for connectinga
Figure 2-17 shows how to connectthejunctionbox;Appendix B provides
connectiondetailsforspecificRaymarine,Apelc oandAutohelmGPSand
BeaconReceiversystems.
Chapter 2: Installation2-27
To Display Unit
SeaTalk Socket
12V
Power
Supply
Fused
Cable
SeaTalk
Power
GPS
Core
Black (screen)
Red
Yellow
Black (screen)
Red
Black (screen)
Red
Yellow
Figure 2-17: Using the Auxiliary Junction Box
Terminal
1
2
3
1
2
1
2
3
Function
0V
+12v
SeaTalk
0V
+12V
0V
+12V
SeaTalk
To GPS
Power Out: 1 & 2
Power In: 1 & 3
Spare
Input
Data Output
D4291-1
Data Output
DataistransmittedinSeaTalkandNMEA formats as detailed in Appendix D
andcan be used to enhance other equipment as required.
Thisenablesdatareceivedbythedisplaytobepassedtootherinstruments.For
example,ifyouhave amasterandarepeaterdisplay,youonlyneed toconnect
NMEAIn to the master display,whichwillpassthedatatotherepeatervia
SeaTalk.
You can preventNMEA heading data being bridged onto the SeaTalkbusrefer to Bridge NMEA Heading on page 7-9.
Whenyouhaveconnectedyourdisplayunitto the required equipmentensure
thatpositiondataisavailableatthedisplayviaNMEAorSeaTalk.
To confirmyourchartplotterisoperatingcorrectly, perform the following
checks:
1. Withouta chart card installed,selecttheChartdisplaymodeandselecta
suitablerangescale.Verify that the world map is visible.
Usethe trackpadto check cursor movement and normal scrolling action.
3. Insert a chartcartridgefortheareaofyour vessel.
Usethe RANGE ke ytozoom-intocheckthatthechartdataisbeingdisplayed.
Receive d Data
IfeitherSeaTalkorNMEA In is connected, verify that the expected data is
displayed.
1. Press DISPLAY and select the NAV DA T A WINDOW ON.
Checkthattheexpecteddatais displayed.
2. If headingdataisconnected,select Chartmodeandcheckitis displayedin
theheadingdat abox, orselectRadarmodeand checkheadingisdisplayed
in the Status Bar.
Checks
Integrated System
T ransmitted Data
IfSeaTalkor NMEA Out is being transmitted to other equipment, check that
thedataisbeingreceivedcorrectly.
AnNMEA Out connector is used to transmit navigation data. The NMEA
Outputcableshouldbeconnectedto theupper,leftconnectorontherearofthe
displayunit.
Note:The NMEA Output cable has a ferrite clamp attachedtoensureEMC
conformance.
2-30hsb2 Series Fishfinders
T ransmi tted Data
Chapter 3: Getting Started & Adjusting the Display3-1
SeriesFishfinderdisplays.Itwillhelpyoutobecomefamiliarwiththe
displayandthefunctionsofthecontrolsbeforeyoustartusingthe unit. More
detailed information on operating the Fishfinder display is provided in
Chapter 4. ChartplotteroperatingdetailsaregiveninChapter 5 and
Chapter 6.
Operatingprocedures,whichmayconsistofasinglekey-pressorasequence
ofnumberedsteps,areindicatedbya ➤symbol in the margin.
Whentheproce durerequiresyoutopressa softkey,thesoftkeyiconisshown
in the margin.
Simulator
Thedisplayunitincludesasimulatorfunction,thatallowsyoutopractice
operatingyourFishfinderorChartplotter(Raychartmodelson ly)withoutdata
fromthetransducerorGPS system. Youwillneed to use the set up optionsto
switchthedisplaytosimulatormode,asdescribedinSection 3.2.
You needtoconnectthedisplaytoa 12Vor24VDC powersupply,connecting
theredwirefromthepowerleadtopositive(+)andtheblackwiretonegative
(-).SeeChapter 2 for full details.
Thefactorydefaultpower-upmodeisfull-screenfishfi nder. Once youhave
usedthedisplayunititpowers-upinthe last usedmode.The following
sectionsdescribethepower-upsequenceinfishfinderandchartmodes,howto
adjustthelightingandcolorcontrols,andhowtoselectsimulatormode.
Display On and Off
Switching the
➤Toswitchthedisplayonin fishfindermode:
Pressandhold thePOWERkey untiltheunitbeeps.Thekeysl ightupandafter
afew moments the display shows the fishfinder screen.
AUTO GCRZFH
52
ft
ZOOMFREQUENCY
Untilunitbeeps
SD
50kHz
45
BTM.LOCK A-SCOPE
0
8
38
100
D5443-1
Figure 3-1:Switching On in Fishfinder Mode
You can adjustthedisplaybrightn essand contrast/colors,asdescribedlater in
thischapter.
Setting the Fishfinder as Master/Repeater
You need to set your displayasafishfindermasterorrep eater.Ifthedisplay is
connectedtoasonartransduceritisa master display.If your display is part of
anintegratedsystem,connectedtoanotherfishfindermasteritisarepeater
display.Fishfinderfunctionalityisthesameonbothmasterandrepeater
displays,withthefollowinglimitations:
untiltheunitbeeps.Thekeys light up, the Raychart graphic is displayed,
followedbythe caution:
CAUTION:
Display On and Off
Switching the
Raychartchartdisplaysarebasedoncartographicdatathat
C-MAPbelievestobeaccurate.However, youshouldnotrelyonthese
displaysasyourprimarysourceofnavigation.Rather,yourRaychart
shouldbeused only as a backuptoofficialgovernmentchartsand
traditionalmethodsofnavigation.
Whenyouhaveread andunderstoodthecaution,pressthe CONTINUEsoftkey .
Thechartis displayed.
If this is the first time the chartplotter has been turned on, and no chart card is
installed,thedisplayshowsthesmall-scaleworldmapandthedefaultsoft
keys.Otherwise,thedisplayshowstheselectedchartareaandany data that
weredisplayedwhenthe displaywaslastused.
Until unit beeps
Figure 3-3:Switch On - Chart Mode
Switch Off
CAUTION:
ToprovideprotectionagainstthedamagingeffectsofUVlight,itis
advisabletoreplacethesuncoverprovidedwhenthecolorLCDdisplayis
notinuse.
Areminderisdisplayedwhenyouswitch off the color LCD display.
D4277-3
Chapter 3: Getting Started & Adjusting the Display3-5
➤Toswitchthedisplayunitoff,pressandholdthePOWER keyfor three
seconds.Acountdowntimerisdisplayedasshown below:
GAIN
DISPLAY
VRM/EBL
MARKS
MULTI
Countdown timer:
number of seconds
to power off
POWER OFF IN
3s
ALARMS
RANGE
Simulator Mode
Figure 3-4:Switch Off
Whenthe counterreacheszeroa beep sounds, and the display unit switches
off.ReleasethePOWER key.
Note:Switchthedisplayunitoff beforeyouremove eitherthe power or transducercords.
Simulator M ode
Whensimulatormodeison a simulator database box is displayed.
Whenthedisplay isswitchedof fthenonagain,simu latormodeismaintained.
Itisrecommendedthatyouselect theSystem Set Up Menu and switchoff
simulatormodewhenyouhave finished.
➤Toview simulatedimage:
MENU
SYSTEM
SET UP¬
1. Press MENU followedbyeither:
the SYSTEM SET UPsoftkeyforsimulateddataor
the SONAR SET UP soft key forasimulatedfishfinderimage.
Thesetup menu pop-up is displayed.
3
SECONDS
POWER
ENTER CLEARMENU
D3599-2
SONAR
SET UP¬
2. Use thetrackpadtomove the selectionbar over the option SIMULATOR/
SONAR SIMULAT OR.Thesimulatorsoftkeysaredisplayed.
3. In thesystemsetup menu, press DATAto view the chart display with simulatedposition.
Inthesonarsetupmenu,pr essthe ONsoft key to switchonthesonarsimulator.
4. Press ENTER twi cetoreturntothedefaultdisplay.
Note:Any waypointsplacedon the chartplotterin simulatormode are retainedinthedatabaselistand are available for use in routes.
3-6hsb2 Series Fishfinders
Changing the Lighting & Con trast (Monochrome LCD)
OntheL755RC,youcan change the levelof backlightingandcontrastforthe
screenandkeys.Thekeyli ghtingissetthesameasthescreenlight ing, except
that it remains switched on at its lowest level even when the screen lighting is
turnedoff,sothatyoucanalwaysfindthe keys.
(Monochrome LCD)
Lighting & Contrast
Changing the
➤Tochangethe lightingand contrast:
1. Press the MULTI keytodisplaythesoftkeycontrols:
Thelast-usedsoft key ishighlightedininverse video(whitetextona black
background).
37%70%
50%
CONTRAST
POWER
AUTO LO HI
LIGHTCONTRAST
WHT LINE
OFF ON
D4895-2
2. Press the LIGHT softkeyifitisnotalreadyhighlighted.
3. The LIGHT softkeytoggles lighting ON/OFF.
4. Use thetrackpad(upor down) to increase or decrease the setting. Youcan
pressandholdthetrackpadtochangethesettingmorerapidly.Thelighting
levelisadjustedasyouchangethe setting.
5. Press the CONTRASTsoftkey .Adjus tthesettinginthesamewayasforthe
lighting.Thereare64differentcontrastlevels.
6. Press ENTER toreturntothedefaultscreen,withthenewlightingandcon-
trastlevelsretained,orpressCLEAR to discard the changes and return to
thedefaultscreen.
IflightsareleftON when you switch off the display,thenexttimethedisplay
isswitchedon,thelightswillbeON,butatthedefaultsettingof42%.The new
contrastlevelisretaineduntilyouresetit,unlessyousetthecontrolverylow
orveryhigh;inthis case, the contrastwill be restored as follows:
Contrastset<30%restored to 30%
Contrastset>70%restored to 70%
Changing the Brightnes s & Color Settings (Color LCD)
TheMULTIkeyon the color LCD Fishfinder providescontrolstosetup the
displaycolorsandbrightness.You can choosethebackgroundcolorandthe
colorthreshold;colorthresholdletsyoudeterminewhichechoesare
displayed,byselectingtheminimumcolorstrengththefishfinderuses.You
canalsoselectthecolorset,for a bold or soft color palette. The brightness of
thescreencanbeadjustedovera wide range, suitable for viewing in daylight
(highbrightnesslevel)oratnight(lowbrightnesslevel).
Chapter 3: Getting Started & Adjusting the Display3-7
Thekey lightingis automaticallyadjustedasyoualterthescreenlighting,so
thatyoucan alwaysfindthe keys. If you set the backlight to a high level,the
keylightingisdimmed;ifyousetthebacklighttoalowlevel,thekeylighting
levelisincreased.
Adjusting the Brightness
➤Tochangethe screenbrightness:
1. Press the MULTI keytodisplaythesoftkeycontrols:
70%
Changin g the
Brightness & Color
Settings (Color LCD)
MULTI
POWER
AUTO LO HI
LIGHT
COLOR
SETTINGS
WHT LINE
OFF ON
D4896-2
2. The LIGHT softkeyindicatesthebrightn esslevel, use the trackpad (up or
down)toincreaseordecr easethesetting.You can pressandholdthetrackpadto change the settingmore rapidly. The brightness level is adjustedas
youchangethe setting.
3. Press ENTER toreturn to the default screen, with the new brightness level.
➤Tosetthe screen brightnessto100%:
Pressandholdthe MULTI key for one second. The brightness is increased to
100%.
Note:During night-timeuse,thebrightnessmay be set very low, when subsequentlyoperatedduringthedayitmay not be apparent that the display is on;
pressMULTI thenusethetrackpadtoincreasebrightness.Alternatively,press
andhold MULTIforone second to set the brightness to 100%.
Selecting the Background Color
Fivecolorsareavailableforthefishfinderdisplaybackground–black,dark
gray,lightgray, white and dark blue. The color you select isusedon all the
fishfinderwindows(scrollingbottom,Zoom,BottomLockandA-Scope).
You willprobablyfindthatyouneedto change the backgroundcolorin
differentlightconditi ons.Forexample,awhitebackgroundisprobably
easiesttoseeinbrightsunlight,butablackbackgroundmaybe preferableat
night.
4. Press ENTER orCLEARtwicetoreturntotheMULTIsoft keys.
Selecting the Color Thresh old
You usethecolorthresholdcontroltodeterminetheminimumecho strength
thatisdisplayed.Eachrangeofecho strengthsisdisplaye din a colorasshown
inthecol orbar;youselecttheminimumstrengththatis displayedbyblanking
echocolorsbelowtherequiredminimum.
MULTI
COLOR
SETTINGS
COLOR
THRESH
Ifyoublankacolor,thecorrespondingechoesar edisplayedinthe background
color. Youcan remove up to six colors, but you cannotremovethe strongest
color.
Thecolorthresholdyousel ectis used on all the fishfinderwindows(scrolling
bottom,Zoom,BottomLockand A-Scope).
2. Press the COLOR THRESH softkey. Thecolorthresholdsoftkeysare displayedbelowcolorindicatorshowingtheavailableechocolors.
Theweakestcolorisatthebottomoftheindicator,thestrongestcoloratthe
top;youcan remove colorsfromthe bottomup.
3. Press the leftorrightADJUST COLOR THRESHOLD soft key to change the
colorthreshold.
Pressingtheleftkeyremovesout the next color up, it increases the minimum strengthdisplayed.
Pressingtherightkeydisplaysthenextcolordown, it decreases the minimum strengthdisplayed.
4. Press ENTER orCLEARtwicetoreturntotheMULTIsoft keys.
Chapter 3: Getting Started & Adjusting the Display3-9
2. Press the COLOR SETsoft key; this toggles between color set 1, bolder colorsandcolorset 2, softer colors.
3. Press ENTER orCLEARtwicetoreturntothedefaultscreen.
3.3 Controlling the Display
You controlthedisplayusingthecursorandcontrolkeys.You startall
operationsfromthedefaultscreen,thatisthedefaultsoftkeysaredisplayed:
Fishfinder
Chart
Whenyouhave completed an actionusing the soft keys, press ENTER or
CLEAR to returnto the default screen;you may need to press ENTER or
CLEARseveral timesto back-trackthroughthesoftkeyhierarchy.
Note:If you have set up your system so that the defaultsoftkeysarenotdisplayedallthetime,press anysoft key to display the labels.
Theremainderofthissectiondescribeshowto selectthe mode of operation
andswitchhalf-screenwindowson/off.Thefollowingsectionsdescribe how
tosetup thedisplayfor theFishfinderand fortheChart(forfishfinderd isplays
withchartplotterfunctionality).
You use the DISPLAY keyto selectthefull-screenmode.Ifthedataisavailable
onyour system,the followingmodes (describedinOperatingModes onpage 1-6)can be selected:
Theselectedmodeis shown by an icon with a black(monochromeLCD) or
red(colorLCD)borderand the mode is displayed on the screen.The
associatedhalf-screenwindowsoftkeysarealsodisplayed.
Whenthe requiredmodeis shown, press ENTER orCLEAR.Thedefaultsoft
keysaredisplayed.Theselect edmodeisshownfull-screen;inFishfinderand
Chartmodeyoucan switch on half-screen windowsfor additionaldisplay,as
describedinthefollowingsection.
IfyoupressDISPLAY again,thepop-upandsof tkeys forthecurrentmodear e
shown.
Chapter 3: Getting Started & Adjusting the Display3-11
Selecting a Ha lf-Screen Wind ow for Display
Note:Windowscan only be used with Fishfinder or Chart screens, they are
notavailableonthedata log screen.
➤Toselectawindow for display:
1. From thefull-screenFishfinderorChartmode,presstheDISPLAYkey.
Thefollowingsof tkeys are displayedwithanimageof each availablewindow:
Fishfinder
DISPLAY
WINDOWS
OFF ON
Chart
SELECT
WINDOWS
SPLIT
HOR VER
D5011-1
of Operation
Selecting the Mode
DISPLAY
WINDOWS
OFF ON
SELECT
WINDOW
D4156-2
2. In fishfindermodecheckthatSPLITissettoHOR. To select a differentwindow,presseither SELECT WINDOWSsoftkeyuntilthe requiredwindowis
highlighted.Ifnecessary,thiswilltogglewindowson.PressENTER.
3. Totogglewindowsoff,presstheWINDOWS OFF ONsoftkey.
Ifanydata boxes were displayed at the bottom of the full-screen image, they
areswitchedoffuntilyoureturntofull-screenmode.However, you can use
the SCREENsoft key in chart mode to switch the databoxeson - they are
displayedintheupperwindow.
Figure 3-6 shows the half-screen horizontal windows (in fishfindermode).
Switching Control Between Fishfinder & Chart Screens
Ina combined or an integrated system, to switch control between fishfinder,
radar,andchart,youcanchange thefull-screenmodeusingth eDISPLAY key.
Alternatively, when you have both fishfinderand chart displayedinhalfscreenwindowsthesoftkey CHRT SNR letsyou toggleoperatingcontrol
betweenthefishfinderandthechartwindow.
Ifa window is active, i.e., controlof the cursor via the trackpad is available in
thatwindow, and youswitchwindowsoff,controlautomaticallyreturnstot he
full-screen(upperwindow)mode.
3-12hsb2 Series Fishfinders
Fishfinder:
ZOOMMORE¬FREQUENCY
CHRT SNR
D5013-1
Chart:
Selecting the Mode
of Operation
GOTOMORE¬ROUTE
CHRT SNR
D5025_1
➤Tochangethe activewindow, pressthe CHRT SNRsoft key to toggle control
betweenthefishfinderandchartdisplay.Thecurrentactivedisplayis
highlightedingray(monochromeLCD)orred (color LCD) on the CHRT SNR
labelandthecursorappearsin that window.
Returning to the Full-Screen D isplay
To returntothe full-screendisplayyoucanturn windows off,aspreviously
described.Alternativel y, to return to full-screendisplay:
➤Pressandholdthe DISPLA Y key for 2 seconds to returntothecurrently
DISPLAY
selectedfull-screen(upperwindow)display.
Chapter 3: Getting Started & Adjusting the Display3-13
CDI Window
AUTO G RZ
WINDOWS
WINDOWS
OFF ON
OFF ON
50kHz
ft
STEER PORT
WAYPOINT 001
ZOOMFREQUENCY
SELECT
SELECT
WINDOWS
WINDOWS
100
150
200
XTE
0.28nm
WPT BRG
351°T
WPT RNG
26.8nm
TTG
03
h:59m
BTM.LOCK A-SCOPE
SPLIT
SPLIT
HOR VER
HOR VER
BDI Window
AUTO G RZ
0
ft
225°T
50kHz
0
100
150
200
XTE
1.45nm
40
30
2020
nmnm
1010
STEER STARBOARD
WAYPOINT 001
BTM.LOCK A-SCOPE
SELECT
WINDOWS
WINDOWS
OFF ON
ZOOMFREQUENCY
WPT BRG
351°T
WPT RNG
23.1nm
TTG
01
h:13m
SPLIT
HOR VER
of Operation
Selecting the Mode
Depth/Temperature WindowChart Window
AUTO G RZ
50kHz
AUTO G RZ
0
100
150
200
0102030405060
SPLIT
HOR VER
12.8
50
91
131
170
200
WINDOWS
OFF ON
TEMPERATURE (°C)
26.4
26.0
25.6
25.2
24.8
24.4
24.0
23.6
23.2
WINDOWS
OFF ON
ZOOMFREQUENCY
ft
MINUTES
BTM.LOCK A-SCOPE
SELECT
WINDOWS
DEPTH (ft)
50kHz
100
150
ft
ZOOMMORE¬FREQUENCYCHRT SNR
SELECT
WINDOWS
200
SPLIT
HOR VER
D5023-2
0
Figure 3-6:Fishfinder Half-Screen Window Options
3-14hsb2 Series Fishfinders
3.4 Fishfinder Display Control Functio ns
TheFishfinderautomatical lylocatesthebottomanddisplaystheinformation
usinganappropriatescrollspeedandrange.However ,cont rols are provided
soyou can adjustscrollspeedand range.Youcanalso selectthe transducer
frequencyandselectcertaindatafordisplay.Thissectiondescribeshowtouse
Thecursordatabox and agroupofuptosi xdata boxescanbedisplayed,if the
informationisavailableonyoursystem.You select which data is displayedintheboxesduringsystemset up as described in Chapter 7.Thedefault
databoxpositionsare alongthebottomofthe display.Each box canbemoved
totherequiredpositiononthescreenusingthecontext-sensitivecursor.
To switch the data boxes on and off you need to go toChartmode – see
CustomizingtheScreenPresentationOptionsonpage 3-24. Switchingthe
databoxeson/offinChartmodealsoaffectstheirdispla yinFishfinderMode.
Changing the Scr oll Speed
Thestandardfishfinderdisplayisthescrollingbottomimage;thisisa
graphicalrepresentationoftheechoesseenbytheFishfinder.New
information appears at the right hand side of the display and scrolls to the left.
Thespeedat whichthedisplayscrollsisadjustable,butthesamesect ionofthe
bottomisdispl ayedregardlessofs crollingspeed.Asil lustratedinFigure 3-7,
ifyouselecta faster speed,moredetailis displayedandisusefulwhenyou are
lookingforfish;ifyou select a slower speed the information remains on the
displayforlonger.
Chapter 3: Getting Started & Adjusting the Display3-15
Ifyouselectmanualadjustment,thescrollspeedisnotrelatedto the speed of
theboatoverthe bottom.Youcanalsopausethedisplay(thedepthindication
continuestobeupdated).
➤Tochangethe scrollingspeed:
1. Press MENU, then press the SCROLL SPEED soft key.
2. If necessary,presstheSCROLL AUTO MANsoft keyto toggle the setting
betweenAUTO and MAN.
3. For manualadjustment,usethetrackpadtoincreasethescrollspeed.You
canpressand holdthe trackpadto change the value more rapidly.
Changing the Scroll
4. PressENTER to returntotheMenusoftkeys,thenENTERagaintoreturnto
thedefaultdisplay.
➤Topausethe scrollingdisplay:
MENU
1. Press MENU, then press the SCROLL SPEED soft key.
2. Press the PAUSE soft key.Thedisplaystopsscrollingandthekeyisrela-
4. PressENTER to returntotheMenusoftkeys,thenENTERagaintoreturnto
thedefaultdisplay.
3-16hsb2 Series Fishfinders
Changing the Fishfinde r Range
TheFishfinderautomaticallyadjuststhedisplayrange.Alternatively,the
RANGEkey lets you select the maximum depth displayed on the scrolling
bottomandA-Scopedisplays.You canalsoset the shift value to move the
imagewindowup or down within the current range.
Fishfinder Range
Changing the
rangethatkeepsthebottominthe lower half of the display window.Shiftis
disabled(thevalueisignored)whenauto-rangeisselected.
Chapter 3: Getting Started & Adjusting the Display3-17
Note:
1. Range detectionbelow3000ft(1000m) is only available with the L1250
PlusandL1250RCPlusdisplaysaf te ryou have fixed the DepthRangesettingto5000 ft. See Depth Range (L1250 Plus and L1250RC Plusonly)on
page 7-13 for details.
2. All other
2
hsb
SeriesFishfindersarelim ited to a maximum depth range of
3000ft(1000 m), unless repeatingdatafr omanL1250PlusorL1250RC
Plusviathe High Speed Bus.
➤Toadjusttherangeand shift values:
1. Press RANGE, this sets adjustment to manualandthe range soft keys are
RANGE
displayed.Therangeadjustsupordown depending on the direction
pressed.
2. Use the RANGE key to adjust therange:presstheuparrowtoselectashal-
lowerrange,pressthedownarrow to select a deeper range.
Setting
Selecting th e Power
RANGE
AUTO MAN
3. If necessary,presstheRANGE AUT O MANsoftkeytoselectAUTOrange.
AUTO range is indicated by the letter R in thestatusbar.
4. Toadjusttheshift,presstheappropriateSHIFTsoftkey:usetheupsoftkey
toselectashallowershift,usethedownsoftkey to select a deeper shift.
Theimage window is shifted up by the selectedamount
5. Press ENTER toreturn to the default display.
Selecting the Power Setting
ThePOWERsoftkeyprovidesadjustmentofthetransducersi gnal.WhenAUTO
isselected(default),theFishfinderautomaticallydeterminesthepower
settingbasedonthecurrentdepth.LOpower (10 W) is used in depth ranges
lessthan20feetandHIpower(600 or 1000W,dependingonyourtransducer )
isselectedfordepthsgreaterthan20feet.WhenAUTO is selected the current
automaticpowersettingisindicatedinthetopstatuslinebyanL (low)or H
(high).
Thepower settingis retainedwhentheunit is powered off.
➤Tochangethe power setting:
MULTI
1. Press the MULTI keytodisplaythesoftkeycontrols.
POWER
AUTO
LO
2. Press the POWER softkeytotogglebetweenAUTO,LO,orHIpower.The
HI
selectedsettingishighlighted.
3. Press ENTER orCLEARtoreturntothedefaultscreen.
3-18hsb2 Series Fishfinders
Selecting the Fre quency
Thehsb2SeriesFishfindersusedualfrequencysonar.The two frequencies
usedare50 kHz and 200 kHz. TheFishfinderautomaticallyselectsthe
appropriatefrequency. Alternatively, youcan manuallyselecteither
frequency,orbothfrequenciessimultaneously.Eachissuitableforaparticular
purpose:
Selecting th e
Frequency
50 kHz Frequency
Whenusingthisfrequency,the transducerscansa wide area. The 50 kHz
signalpenetrateswaterwell,soisgoodforuse in deep water.
200 kHz Frequency
Whenusingthis frequency,thetransducerscansanarrowerarea,butproduces
amore detailedview. The 200 kHz signal is goodforfindingfishnearthe
bottomorclosetogether.It is better for use in shallow water.
FREQUENCY
Split Frequency
Thetransducercanoperateinboth50 kHz and 200 kHz frequenciesatthe
sametime.If you choose split frequencyoperation,thescrollingbottom
displayissplithorizontally;theupperhalfshowsthe200kHz detailedview
andthelowerhalfshowsthe50kHzimage.
➤Tochangethe frequency:
1. Press the FREQUENCY soft key.Thefrequencyselectionsoftkeysaredis-
played.
2. Press theappropriatesoftkey–50 KHZ, 200 KHZ orSPLIT.Thescrolli ngbot-
tomisdisplayedintheselectedfrequency.Ifyou choosesplit,thescrolling
bottomisdisplayedin bothfrequencieswith200kHz in theupperwindow
and50 kHz in the lower window.
3. If necessary,presstheAUT O FREQ OFF ON sof tkeytoselectAUTO frequency.AUTO frequency is indicated by the letter F in the statusbar.
4. Press ENTER or CLEAR toreturntothe defaultdisplay.
You canchoosethesplitfrequencydisplaywiththefishfinderdisplayoptions,
BottomLock,A-Scope, or Zoom.
Chapter 3: Getting Started & Adjusting the Display3-19
Using Bottom Lock
Thescrollingbottomdisplayprovidesatop-downview, referencedfromthe
surfaceofthewater. Bottom Lock shows a water column of fixedheight,
referencedfromthebottom,thatappearsflat.Itremovesbottomdetailto
provideanimageofobjectsdirectlyabovethebottom,andisusefulwhenyou
arelookingforfishthatfeedcloseto the bottom.
You canselecttheBottomLock image to be vertically split with the scrolling
bottomdisplay,oritcanreplacethescrollingbottomdisplay.
RangeintervalsonBottomLockaremeasu redupfromthebottom(ratherthan
downfromthesurface).Thus,thebottomis shownaszeroandt hetop number
indicatesthemaximumdistanceabovethebottombeingdisplayed.Youcan
adjusttheBottomLockrange.
Using Bottom Lock
BTM.LOCK
IftheA-Scopeor Zoom image was displayed, selecting Bottom Lock
automaticallyswitchesOFFA-ScopeorZoom.
Ifyouhave split frequencyselected,theBottomLockimage is displayed in
bothfrequencywindows.
If TargetDepth ID is ON (seeTarget Depth ID on page 7-12), the target depth
isdisplayedasdistancefromthebottom.
➤To displaythe Bottom Lock image:
1. Press the BTM. LOCK softkey.TheBottomLockselectionsoftkeysaredisplayed.
2. Press the BTM. LOCK OFF ON softkeytotogglethe functionON.
3-20hsb2 Series Fishfinders
AUTO G Z
200kHz
20
Using Bottom Lock
15
10
5
0
ft
ZOOMFREQUENCY
Figure 3-8:Bottom Lock Display
3. Press the BTM. LOCK FULL SPLIT soft key to toggle between a full window
bottomlockimageorsplitwindows.The bottomlock image is displayed.
Ifyou selectsplitwindows,thefishfinderdisplayissplitvertically, with
thebottomlockimagein the left hand window and the scrolling bottom
displayintheright hand window.
Inasplitwindowdisplay,averticalbarappears(alongtherighthandedge
ofthescrollingbot tom image)thatreferencesthe range being displayedin
thebottomlockwindow.Thisbarvaries inheightasthebottomloc krange
ischanged.
4. Toadjustthe range,presstheappro p riateBTM LOCK RANGEsoftkey:press
the up arrow to select a larger range, press the down arrow to select a
smallerrange.
5. Press ENTER or CLEAR toreturntothe defaultdisplay.
BTM.LOCKA-SCOPE
D5015-2
Chapter 3: Getting Started & Adjusting the Display3-21
➤Torepositionthebottomlockimage:
1. Use the trackpadtomovethecursortot hebottom image untilthetextBLis
BL
displayednearthecursor.
2. Press ENTER, ahorizontallineappears,indicatingthecursorisactive.Use
thetrackpadtomovethe line to the required bottom lock image position.
3. Press ENTER to reposition the bottom lock image, or CLEAR to cancel the
operation.
Using A-Scope
A-SCOPE
A-SCOPE
MODE
1 2 3
Thescrollingbottomdisplayprovidesahistoricalrecordofsonarechoes.
A-Scopedisplaysareal-timeimageofthe bottomstructureandfishdirectly
belowthetransducer,alongsidethe scrollingbottomdisplay. At thelowerend
ofthewindow ,A-Scopealsodisplays the patented Bottom Coverage width
indication.
➤To displaythe A-Scope image:
1. PresstheA-SCOPEsoftkey.Thedisplayissplitvertically,withtheA-Scope
imageinthe right hand window and the scrolling bottom image in the left
handwindow.
2. Press the A-SCOPE MODE soft key to selectone of the three modes for
A-Scope,asdemonstratedinFigure 3-9:
i. Mode 1, in which the A-Scope image is angledoutwardas the signal
width(indicatedwithdottedlines)increases with depth.
ii. Mode2,inwhichtheimagee xpandsto take up theentireA-Scopewin-
dow,providinggreaterresolution.
iii. Mode3,inwhichonlythelefthandsideoftheimagedisplayedinMode
2. Press the A-SCOPE ON OFFsoft key to toggle off A-Scope.
3. Press ENTER.
OFF
BottomLockor Zoom.
3-22hsb2 Series Fishfinders
Using Zoom
A-SCOPEMode1Mode2
AUTO G Z
35
Figure 3-9:The Three Modes of A-Scope
Using Zoom
65
ft
ZOOMFREQUENCY
50kHz
0
25
25
50
75
100
BTM.LOCK A-SCOPE
BTM.LOCKA-SCOPE
52.3
52.3
52.3
A-SCOPE
Mode3
52.3
A-SCOPE
D5258-2
ZOOM
Zoomenlargesallorpartofthescrollingbottomdisplay.Youcanselect
automaticzoomsothefishfinderselectsazoomlevelthatkeeps the bottomin
thelowerhalf ofthedisplaywindow.Alternatively ,youcanmanuallypick the
areatobe zoomed.
➤Toselectzoom:
1. Press the ZOOMsoft key,ifnecessarypresstheZOOM ON OFFsoft key to
togglezoomon.
2. Press the ZOOM FULL SPL Tsoftkeytotogglebetweena full window zoom
imageorsplitwindows.
Ifyou selectsplitwindows,thedisplayissplitvertically,withthezoom
imageintheleftha ndwindow and the scrollingbottomdisplayinthe right
handwindow.
Inasplitwindowdisplay,averticalbarappears(alongtherighthandedge
ofthescrollingbot tom image)thatreferencesthe range being displayedin
thezoom window. This bar varies in height with the selected zoom level.
3. If necessary,presstheZOOM AUT O MANsoftkeyto toggle the setting
betweenAUTO and MAN. The manual setting allows you to reposition the
zoomed image.
4. For zoom levelselection,pressthe ZOOM X 2 4 6 soft keyuntiltherequ ired
zoomlevelisselected.
5. Press ENTER or CLEAR toreturntothe defaultdisplay.
Chapter 3: Getting Started & Adjusting the Display3-23
➤Torepositionthezoomwindow:
Ifmanualzoomis selected,you can repositionthe area of the image that is
zoomed.
1. Use thetrackpadtoplacethecursorinthezoomwindow,thetextZOOMis
displayednearthecursor.
3. Press ENTERto repositionthezoomimage,orCLEARto cancel the operation.
IftheBottomLock or A-Scope image was displayed, selecting Zoom
automaticallyswitchesOFFBottomLockorA-Scope.
Ifyouhave split frequencyselected,theselectedZoomimageis displayedin
bothfrequencywindows.
Using Zoom
3-24hsb2 Series Fishfinders
3.5 Chart Display Contro l Functions (Raychart Models)
Customizing the Scree n Presentation Options
TheSCREEN softkeyletsyousetthefollowingscreenpresentation options on
oroff:
(Raychart Models)
Control Functions
Chart Display
➤Tocontrolthecursordatabox:
CRSR BOX
OFF ON
CHRT GRID
OFF ON
DATABOXES
OFF ON
CUSTOM
OFF ON
D4177-1
Switching the C ursor Data Box On an d Off
Thecursordata boxprovidesthecursor’spositionin latitude/longitudeand/or
bearing/range.Ifyouwishtoseeafullimage,youcan switch the data box off.
SCREEN
CRSR BOX
OFF ON
SCREEN
CRSR BOX
CHRT GRID
OFF ON
OFF ON
1. Press the SCREEN softkey.
2. Press theCRSR BOXsoftkey totogglethesettingfromOFF to ON orfrom ON
to OFF.
3. Toreturntothedefaultsoftkeydisplay,pressENTER.
➤You canmove the cursordata box using the context-sensitivecursor.
Switching Chart Grid On and Off
TheChartplotterdisplayincludesgridlinesoflatitudeandlongitude,which
youcan useto help determine positionon the chart. The grid lines can be
switched on if required.
➤Toturnthe chart gridon or off:
1. Press the SCREEN defaultsoftkey.
2. Press the CHRT GRIDsoftkeytotogglethe settingfrom OFF toON orfromON toOFF.
To returntothe defaultsoftkeydisplay,pressENTER.
Data Boxes
Agroupofuptosi xdataboxescanbedisplayed,if theinformationisavailable
onyour system. Youselectwhichdataisdisplayedinthe boxes during
systemsetupasdescribedin Chapter 7.
Thedefaultdatabox positionsarealongthe bottomof the display.Eachbox
canbemovedtotherequiredpositionon thescreenusingthecontext-sensitive
cursor.
Note:If you select fishfinder,BDI,CDI or Nav Data for displayina halfscreenwindow,thedataboxesare temporarilyhidden.
Chapter 3: Getting Started & Adjusting the Display3-25
Atanytime, you can switchthegroupof databoxesonoroffusingtheSCREEN
softkey.When first installed,theboxesare allOFF. When the display unit is
switchedof fand on again,thedataboxesreturn totheirlast-usedstates(ON orOFF)and positions.
Note:The SCREEN softkeydoes not control the sixteendata boxes that can be
displayedinthehalf-screenwindow.
➤Toswitchthegroup of data boxes on or off:
SCREEN
CHRT GRID
CRSR BOX
DATABOXES
OFF ON
OFF ON
OFF ON
BOX
1. Press the SCREEN defaultsoftkey.
2. Press the DATABOXES softkeytotogglethesettingfromON to OFF orfromOFF toON.
To returntothe defaultsoftkeydisplay,pressENTER.
Ifyouturn the data boxes on and none are displayed,youneedtoselectthe
onesyourequireusingthe systemset up menu, as described in Section 7.3.
➤To move any data box:
1. Use thetrackpadtopositionthecursorover theboxuntilthelettersBOX are
displayed.
2. Press ENTER totakecontrolofthebox,usethetrackpadtomoveitto the
requiredposition,andpressENTER again.
Custom O ptions - Chart mo de
WhenchartdetailshavebeencustomizedintheChartSetUp menu (as
describedinSection 7.5)theSCREEN softk eycanbeusedto switchthecustom
chartoptionsofforon:
Whenset to ON, all chart options set to CUSTOM intheCustomizeChartmenu
aredisplayed;whensettoOFF, optionssettoCUSTOM arenotshown.
Options
Customizin g the
Screen Presentation
ThefactorydefaultforcustomchartoptionsisON.
➤Toswitchthecustomizedoptionsonor off:
SCREEN
CHRT GRID
CUSTOM
CRSR BOX
DATABOXES
OFF ON
OFF ON
OFF ON
OFF ON
1. Press the SCREEN defaultsoftkey.
2. Press the CUSTOMsoftkeytotoggle the settingfromOFF toON or from ON
to OFF.
To returntothe defaultsoftkeydisplay,pressENTER.
3-26hsb2 Series Fishfinders
Moving Around the Chart
You willnormallyoperatethechartplotterwiththechartshowingyour
vessel’scurrentlocation.Thedefaultorientatio nisNorth-Up,andthevessel
movesacrossthescreen. Youwillneedtomove the chartifyourvesselmoves
outofthe area currentlydisplayed,orif you wish to examine or place
Moving Around the
waypointsinanotherarea.Alternatively, you can home the cursor onto the
vesselusingFIND SHIP .
Chart
Therearefour ways in which you can movethechart:
•Usethetrackpadtomovethecursortotheedgeofthechart.Thechartwill
panacross.Thismethodisusefuliftheareayouwishtoseeisonlyjustoff
the screen.
sorposition.Thismethodisusefuliftheareayou wish to see is a long distance away.
Changing th e Chart Center
You canmove the area of the chart displayed on the screen using the contextsensitivecursor.Thisallowsyouto centeryour vessel in the middle of the
screen,ortomove the chart so that your vessel is displayed off-center
anywhereonthescreen.
➤To center the chart:
1. Use thetrackpadto movethecursortothevessel’sposition.Thecursortext
POS
POS is displayed.
2. Press CLEAR. The chart is moved so thatyourvessel’s positionis in the
centerofthescreen.
3. Use FIND SHIP ,asdescribedinthefollowingsection.
➤To move your vessel’sposit ionoff-center:
1. Move thecursor over your vessel’sposit ionunt iltheletters POS aredis-
POS
played.
2. Press ENTER totakecontrolofthechartposition.ThelettersPOS arenow
ininversevideo,andthecursorsymbol has changedto a four-wayarrow.
Thisindicatesthatthecursorcan beusedtomov ethechartinanydirection.
Chapter 3: Getting Started & Adjusting the Display3-27
D4278-1
Figure 3-10: Changing the Chart Center
Chart
Moving Around the
3. Use thetrackpadtomove the cursor to the required position.
4. Press ENTER toselectt hepositionandreturntonormalcursorcontrol.The
chartisredrawnwiththe vesselpositionatthe cursor.
Alternatively, youcan press CLEAR to abandonthemoveand leave the
chart(andvessel)initsformerposition.
Using FIND SHIP
FIND SHIPisusedinchartmodetore-drawthechartwit hthevesselatthecenter
andthecursorhomed onto the vessel.
GOTOSCREENROUTEFIND SHIP
D4160-1
Whenyou press FIND SHIPthe following occur:
•The chart is re-drawn with the vessel’sposi ti oninthecenter.
•Thecursorishomed onto the vessel position and moves with it.
•Whenthe vessel moves near the edge of the chartwindow, the chart is
redrawntoplacethevesselandcursorat the center again.
awayfrom the vessel’s current position.The statusbar shows the cursor
position,rangeandbearing.
3-28hsb2 Series Fishfinders
Changing th e Chart Scale
TheRANGEkey allows you to change the chart scale so thatyoucan see a
smallerorlargerareaonthescreen.
Plottermodeisavailabletoallowyouto zoom into a smaller area, even when
nochartda tais availableforthatscale.Section 7.5describeshowto setplotter
Moving Around the
modeon/off.
Chart
RANGE
You canchangethe chart scale for two purposes:
•To see either more detail(of a smaller area) or a larger area (in less detail)
onthe screen.
•Tomovethedisplaytoanotherareaoft hechart, by zooming out to a small
scalechart,thenzoominginon anotherpositioncenteredonthecursor.
Eachtime you press the RANGE key,thechartscalechangestothenext
availablesetting.Thestatusbarindicatesthedistancefromtoptobottomof
thescreen,innauticalmiles.
3. If furtherchartenlargementisavailable using the current chart card you
canpressthebottomof the RANGE keytozoominagain, re-positioning
the cursor first if required.
Anarea of further chart detailisindicatedbya box around the area as
shownin Figure 3-11.
Chapter 3: Getting Started & Adjusting the Display3-29
Chart Boundary indicates further
detail is available inside
Chart
Moving Around the
RANGE
D4279-2
Figure 3-11: Chart Boundaries
4. When no furtherchartdetailisavailable,asyou press the bottom of the
RANGE key ,the effectdependson whether PlotterMode is on or off as
follows:
BasicFishfinderoperation,includingadescription of the differentdisplay
options,wasgiveninChapter 3. This chapterhelpsyouthegetthemostfrom
yourFishfinder. Itdescribeshowto fine-tunetheimageand usethecontrolsto
getadditionalinformation.
Thischaptercoversthefollowingtopics:
•InterpretingandAdjustingtheFishfinderImage,includingfishandbottom indications, using the white line feature and adjusting gain (sensitivity)
•V iewing Data Windows
•Settingupand Using Alarms for fish, shallow water and deep water
•Usinga VRM to Determine Depth and Distance from Boat of a particular
spot
Introduction
•PlacingWaypoints
•UsingtheMan Overboard (MOB) function
4.2 Interpreting and Adjusting the Fishfinder Image
Thehsb2SeriesFishfindersusesoundwaves(sonar)tofindfishandshowthe
bottomofalake or sea. The transducer sends high-frequencysoundwaves
downintothewater;thesesoundwaves strikefish,thebottom,or otherobjects
inthewater andreturnas echoes. The fishfinderinterpretstheseechoesto
presentanimageof the fish and bottom.
Thestrengthofechoes is indicatedbydif fe rentcolors(orshadesof gray inthe
monochromeL755RC Plus).Youcanuse this informationtodeterminethe
sizeoffishandthebottomstructure.Otherobjectsinthewater,suchasdebris
andairbubbles,alsoreturnechoes;theseechoesare generallyweakerthan the
fishorbottomechoesand producebackgroundnoiseor clutteron the
Fishfinderdisplay.
TheFishfinderprovidescontrolstor educethe backgroundnoiseandtoa djust
the way in which echoes of different strengths are displayed. The color
Fishfindersalsoletyouselectthebackgroundcolorandremovethedisplay
colorsforweakerechoes,refertoChangingtheBrightness&ColorSettings(ColorLCD) on page 3-6 fordetailsonthesetwo functions.
4-2hsb2 Series Fishfinders
TheFishfinderprovidesaWhiteLinefeaturewhichhelpstodistinguish
between the bottom and fish(or other items such as weed) that are close to the
bottom.
Fish Indications
Whenthe Fishfinderdetectsafish,itdisplaysanarch-shapedmark.In
general,alargerarchindicatesalargerfish, thoughthisruleis not alwaystrue.
Let’ssaythatthe reare twofishofthesamesize:oneiscloseto the surface,the
otherisnearthe bottom.Thefishwhichisclose tothesurfacehasa largerarch
Fish Indications
because,beingcloser, more sound waves get returned to the Fishfinder.
To displaythe depth of the fish, switch on the TARGET DEPTH IDfrom the
SONAR SET UPmenu,asdescribedinSection 7.4, FishfinderSetUp
Parameters.
Thesoundwavesareactuallyreflectedbyanair sac nearthecenterofthefish,
notbythebodyofthefish.Thesizeofthisairsacisdifferentfordifferentkinds
of fish and this can affect the size of fish arches on the image. A fish with a
largeairsac producesalar gefish arch,whileafishwith asmallsacproducesa
smallarch.Severalarchestogethershowaschoolof fish. Figure Figure 4-1
illustratessometypicalfishindications.
50 kHz
200 kHz
Figure 4-1:Fish Indications
An arch-shaped image indicates a fish.
The same fish appears differently when shown by the
50 kHz or 200 kHz transducer beams.
A shallow arch is generated when the the boat is
moving slowly.
This indicates a group of small fish.
A fish moving under a stopped boat shows as a line.
When the boat is moving very fast, a fish appears as
two parallel lines.
D5017-2
Chapter 4: Fishfinder Operations4-3
Effect of Fr equency and Bo at Speed
Thereturnfroma fish has a differentappearancedependingonthe frequency
used:50kHzproducesa wide beam,soafishspottedby this frequencygivesa
broadarch;the200 kHz beam is narrower so the same fish produces a
narrowerarch.
Theshapeof the arch is also affected by the speed of the boat. Iftheboatis
movingslowly, the arches tend to be longer; if the boat ismovingmore
quickly,thearchesareshortand peaked. If the boat is moving very fast, a fish
maybe indicatedbya single verticalline.
InBottomlock mode the fish arches may appear distorted as the bottom
topographyisremovedfromthe image.
Bottom Indications
Thebottomusuallyproducesastrongecho,soit is easy for the Fishfinder to
seea lot of detail.The Fishfindercan indicatemanydifferentkindsofbottom
conditions.
Bottom Indications
AsillustratedinFigure 4-2, a hard bottom appears as a thinline.
A
B
C
D
Hard bottom (sand)
Soft bottom (mud)
Rocky bottom
White line feature on:
Figure 4-2:Fishfinder Bottom Indications
D5016-1
4-4hsb2 Series Fishfinders
Anuneven bottomwhich is covered with rocks or coral produces a complex
display; the bottom image is irregular,with long tails pointing upward. A
wreck produces a similar image.
Asofterbottom orabottomc overedwithseaweedproducesawideline,asthe
soundwavesreflectfromdifferentlayersofthebottom.InFigure4.2b,the
Fishfinderisgettingagoodechofrom the bottom, so the upper layer of the
bottomisshownas darkgray.
Noticethatthelowerlayerof the bottom is shown as a lightergray,this
Using White Line
indicatesaweakerecho.Thiscould mean that the upper layer is soft; some
soundwavesmay get through thislayerand be reflected as a more solid layer
below.
Itisalsopossiblethatthesou ndwavesaremakingtwoc o mp letetrips–hi tting
thebottom,bouncingofftheboat,thenreflectingoffthebottomaga in;thiscan
happenifthewater is shallow ,thebottomishard,orgainissethigh.
Using White Line
TheWhiteLinefeatureseparatesechoesfromfishnearthebottomand the
bottomitself.When the WhiteLineisswitchedon, the Fishfinderdisplayst he
echoesdifferently.
WithcolorLCDs,thestrongestechoesaredisplayedinthebackgroundcolor
witha thin line on top. All other echoes remain unchanged.
IntheL755RC Plus monochrome LCD, the weakest echoes continue to be
displayedinthebackgroundcolorwhite,butcolorsforthe other signal are
reversed.Thus,fromthestrongesttothesecondweakestthecolorsare:light
graywitha thin black line on top, dark gray,black.
➤Toswitchthewhitelinefeatureonand off:
MULTI
1. Press the MULTIkey, theWHT LINE softkeyisdisplayed.
WHT LINE
OFF ON
2. Press the WHT LINEsoftkeyto togglethe white line feature ONor OFF.
Adjusting Displa y Gain (Sensitivity)
ThefishfinderprovidescontrolsforGAIN , COLOR GAIN,andSTC.These
controls,accessedfromtheGAINkey,areusedtoreducebackgroundnoise
anddeterminehowdifferentstrengthechoesareshown.Automatic
adjustmentofGAINor COLOR GAIN isavailable,alternativelyyoucan
manuallyadjustanyoftheseparametersusingthetrackpadandyou canfinetunetheauto-gainsetting.You adjust gain for each transducerfrequency
independently.
Chapter 4: Fishfinder Operations4-5
Thecolorbar on the right hand side of the display,whensettoONin the
FishfinderSetUpmenu (see Section 7.4), shows the colors being used, with
strongestechocoloratthetopand the weakest echo color at the bottom. The
heightofeachbar indicatestherangeof signal strengthsdisplayedinthat
color.
Ifyouchangetheset tings,thenew GAIN, COLOR GAIN,or STCvaluesandmode
(autoormanual)remainsetevenwhenyouturnoffthedisplay.However,any
fine-tuningyoumaketoauto-gainisremovedwhentheunitis powered off.
AUTO
80%
MULTIGAIN
GAIN
MULTI
GAIN
MANUAL
50%
CLR GAIN
Gain
TheGAIN, or sensitivity,of the display adjustsbackgroundnoisebyvarying
echostrengthfordisplay.The value of the GAIN controldeterminesthe
strengthabovewhichechoesaredisplayed:Ifthegainislowonly the
strongestechoesaredisplayed;asthegainisincreasedmore,butweaker
echoes(from,sayairbubbles)aredisplayed.
ThedisplayGAINshould be set high enough to see fish and bottomdetail,but
withouttoomuch backgroundnoise.Generally,a highgain is used in deep
and/orclearwater;alowgainin shallow and/ormurky water.
ThefishfinderprovidesautomaticormanualGAINadjustment.Automatic
adjustmentisbasedondepth and water conditions. As conditionschangethe
auto-gainadjuststodisplayfishwithaminimumofbackgroundnoise.You
canmanuallyadda bias to the auto-gain setting.Ifyou select manual
adjustment,youwillneedtore-adjustthegainasconditionschange.
Color Gain
TheCOLOR GAIN determineshowechoesofdifferentstrengthsare displayed.
Threeshadesofgray (monochrome LCD) or seven colors (color LCD) per
palette are available and the echo strengths are divided into three
(monochrome)orseven(color)bandstocorrespondwitheachshadeof gray/
color.
TheCOLOR GAIN control sets the lower limit for thetopcolorband:
Allechoeswitha signalstrengthabovethisvalueare displayedin the
strongestshade/color.
Allechoesweakerthanthis value are dividedequallybetweentheremaining
shades/colors.
Gain (Sensitivity)
Adjusting D isplay
Settingalow valueproducessmallband for the strongest color,butawide
signalbandfortheothercolors;settingahighvaluegivesa wide band for the
strongestcolor, but a small signal band for the other colors.
4-6hsb2 Series Fishfinders
Note: ThecolorLCD Fishfinderalso providesa COLOR THRESHOLD control
toreducethenumber of colors displayed. You can use COLOR THRESHOLD
withCOLOR GAINto determine how echoesaredisplayed.
TheFishfinderprovidesautomaticormanualCOLOR GAIN adjustment.
Automaticadjustmentdisplayscolorsbasedoncurrentconditions,withas
manycolorsas possible,whileminimizingnoiseandclutter. As conditions
changetheauto-colorgainadjusts.You can manually add bias to theautocolorgainse ttings.Ifyouselectmanual adjustment,youwillneedtore-adjust
thegainas conditionschange.
Adjusting Display
Gain (Sensitivity)
STC
MULTIGAIN
25%
STC
MULTI
GAIN
GAIN
ADJUST
200 50
S TC(SensitivityTimeControl)reducessurf aceclutterbyreducingthegainin
thetop30-40 ft of the display: A low STCvalue has little effect on gain in
shallow water; a high S TCvaluedecreasesthegain inshallowwater,thusonly
thestrongestechoesaredisplayed.
2. If necessaryonasplitfrequencydisplay,presst heGAIN ADJUST soft keyto
selecttherequiredfrequencyforadjustment.
Note: On a single frequency display you adjustthe gain for the displayed frequency.
3. If necessary,presstherequiredsoftkeysothesliderishighlighted.
Pressitagain,ifnecessary,totogglebetween AUTO and MANUAL adjustment.
4. Use the trackpadtomoveth eslider upordown.Youcanpressandholdthe
trackpadtomovethesliderquicklyratherthaninsinglesteps.
Theimage on the screen changes as you move the sliderandthevalueis
indicatedintheslider.
Note: Becausethechangesto the settingsare made immediately,you cannot
reverttotheprevioussettingsbypressingCLEAR.
5. When youhave set all the controls to the levels you require, press ENTER
orCLEAR to return to the default display .
Chapter 4: Fishfinder Operations4-7
4.3 Fishfinder Data Window
TheFishfindercandisplayvariousmeasurementsinlargeformatdataboxes.
Usethe DISPLAY key options to select a data window that is vertically split
withthefull-screenfishfinderdisplay.Threedatawindowsareavailable,each
windowprovidesseverallarge-formatdataboxesforspecificinfo rmation as
follows:
DataWindowADataWindowBDataWindowC
AUTO G RZ
CURSOR
BRG
099
300MINUTES
RNG
2.410
o
R
nm
SPEED
50kHz
F
20.1
15.1
10.1
0
COURSE OVER GROUND
20
SPEED OVER GROUND
40
POSITIONWAYPOINT
81°06^34W
28°17^07N
TT
Rng 2.95nm
Brg 093°T
COURSE OVER GROUND
SPEED OVER GROUND
Window
Fishfinder Data
DEPTH
kts
ft
M
ZOOMFREQUENCY
BTM.LOCK A-SCOPE
60
80
DEPTH
kts
ft
kts
DEPTH
ft
D5018-4
Figure 4-3:Fishfinder Data Windows
•DataWindowA – provides surface temperature with a 30 minute temperaturegraph,speedthroughwateranddepth.
•DataWindowB–providesposition,courseoverground(COG),speed
overground(SOG) and depth.
•DataWindowC–provideswaypointrangeandbearing,courseover
ground(COG),speed over ground (SOG), and depth.
Thedataboxes displayinformationinthe unitsselectedinsystemsetup (see
Section 7.3).
4-8hsb2 Series Fishfinders
4.4 Using Alarms
Using Alarms
MULTIALARMS
TheALARMSkey is used to set up alarms;threealarmsareavailabletoalert
youof fish, shallowwater and deep water.EachalarmcanbetoggledON andOFF, and you set the depth at which shallowanddeepwateralarmsare
triggered(betweentheranges2–3000feet/0.5–500fathoms/ 1–1000 meters).
You maywant to use the shallow and deep water alarms when you are
anchored.Setthelimitstojustabove and below your anchor depth; the
Fishfindertriggersanalarmiftheanchordragsandthe boats moves into
shallowerordeeperwater.
•FishAlarm–IfthisalarmisON theunitsoundsabuzzerwheneveritfinds
afish.Differentbuzzertonesareusedtoindicatefishdetectedbythe
50 kHz and 200 kHz frequencies.
•Shallowwater–You setdepthatwhich the shallow water alarm triggers.
Whenthe depthis less than that set, the buzzer sounds and a pop-up windowdescribingthealarmisdisplayed.You cannotsettheshallowalar mto
bedeeperthanthedeep alarm.
•Deepwater–Yousetdepth at which the deep water alarm triggers.When
thedepthis more than that set, the buzzer sounds and a pop-upwindow
describingthealarmi sdisplayed. Youcannotsetthedeepalarm tobeshallowerthantheshallowalarm.
Thetop line statusbar shows the condition of the alarms:
•indicates an alarm is enabled. The speaker symbol is unfilled until an
alarmistriggeredandsilenced,thenthesymbolisshownsolid.
•S indicatestheshallowalarmisenabled;apop-upwindowindicateswhen
the alarm is triggered.
•Dindicatesthedeepalarmisenabled;a pop-upwindowindicateswhen the
alarmistriggered.
•indicates the fish alarm is enabled.
External Alarms
AllSeaTalksystem alarms (exceptautopilot,shallowanddeep)alarmsare
receivedanddisplayedontheFishfinder. Youcan silencethesealarmsby
pressinganykey.No other action is taken by the Fishfinder except to silence
thealarm.
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