Navionics Raychart 425 User guide

Raychart 425
Chartplotter
Owner’s Handbook
Document # 81172_2
Date: January 2001

Raychart 425 Chartplotter iii
Raychart 425 Chartplotter
Owner’s Handbook
SAFETY NOTICES
CAUTION: HIGH VOLTAGE
Thedisplayunitcontainshighvoltages.Adjustmentsrequire
specialized service procedures andtools available only toqualified
service technicians –there are no userserviceable parts or
adjustments.The operatorshouldneverremovethedisplayunit
coverorattempttoservicethe equipment.
CAUTION: NAVIGATIONAL AID
Thisdeviceisonlyanaidtonavigation.Itsaccuracy canbeaffected
by manyfactors,includingequipmentfailureor defects,
environmental conditions and improperhandling oruse.
Note:It is the user’sresponsibility to exercise common prudence and
navigationaljudgement.Thisdevice,therefore,shouldnotbereliedupon
as a substitute forsuch prudence andjudgement.
TheRaychart 425ChartplotterisdesignedtouseNavionicsNav-Chart
chart cardswhich providecartography inseamless vector format.
THE LEADER IN ELECTRONIC CHARTS

iv
Preface
ThishandbookcoverstheRaychart 425 manufacturedbyRaytheon
MarineCompany.
Itcontains importantinformationon the installationandoperation of
your newequipment. In orderto obtainthe best results in operationand
performance, please read this handbook thoroughly.
Raytheon’sProductSupportrepresentatives,or your authorized dealer,
willbe available toanswerany questionsyoumay have.
Warranty
To register your Raychart 425 ownership, please take a few minutes to
fill out the Warranty registrationcard. It isvery importantthat you
completetheownerinformationandreturnthecardtothefactoryinorder
to receive full warrantybenefits.
EMC Conformance
AllRaytheonequipmentandaccessoriesaredesignedtothebestindustry
standards for use in the recreational marine environment.
The design and manufacture of Raytheon equipment and accessories
conform to the appropriate Electromagnetic Compatibility (EMC)
standards, but correct installation is required to ensure that performance
is not compromised.
Technical Accuracy
The technical and graphical information contained in this handbook, to
the best ofour knowledge, was correctas it wentto press.However,the
Raytheonpolicyof continuousproduct improvement may change
productspecifications withoutprior notice. As a result, unavoidable
differences between the product andhandbook mayoccur fromtime to
time, for which liability cannot be accepted byRaytheon.
Raytheonis a registeredtrademark of RaytheonCompany.
Copyright© Raytheon Marine Company 2000

v
Contents - Raychart 425 Chartplotter
SAFETY NOTICES................................................................. iii
Warranty................................................................................... iv
EMCConformance.................................................................. iv
Technical Accuracy.................................................................. iv
Chapter 1: Overview .................................................................................. 1-1
1.1 Introduction..............................................................................1-1
HowthisHandbookisOrganized ............................................1-1
1.2 Satellite Differential System....................................................1-2
How it Works ...........................................................................1-3
Availability of the WAAS System inNorthAmerica ..............1-4
CoverageOutsideof North America .......................................1-4
AccuracyandContinuationofBroadcastCoverage ...............1-4
1.3 TheChartplotter.......................................................................1-4
Display Functions ....................................................................1-4
OperatingControls ..................................................................1-5
Chapter 2: Getting Started ....................................................................... 2-1
2.1 Introduction..............................................................................2-1
ConventionsUsed ...................................................................2-1
Simulator .................................................................................2-1
2.2 Switching On/Off.....................................................................2-2
Changing theLighting and Contrast ........................................2-2
2.3 Chart Simulator........................................................................2-3
2.4 ControllingtheDisplay............................................................2-4
Selecting the Display Mode ....................................................2-4
MovingAroundthe Chart .......................................................2-6
2.5 Using Navionics Nav-chart Cards............................................2-9
Insertinga Nav-ChartCard .....................................................2-9
Removinga Nav-Chartcard ..................................................2-10
Displaying the Chart Data .....................................................2-10
Chapter 3: Operation ................................................................................. 3-1
3.1 Introduction..............................................................................3-1
Safety .......................................................................................3-1
3.2 Working with Waypoints..........................................................3-1
Introduction .............................................................................3-1
Placinga Waypoint ..................................................................3-2
Selecting a Waypoint ...............................................................3-4
Waypoint DataDisplay ...........................................................3-5
EditingWaypointDetails ........................................................3-5
Erasing Waypoints ...................................................................3-7

vi
MovingWaypoints ..................................................................3-8
3.3 Workingwith Routes................................................................3-8
Creating aNew Route ............................................................3-10
Saving the Current Route ......................................................3-11
ClearingtheCurrentRoutefromtheScreen..........................3-12
Retrieving a Route from the Database ...................................3-12
Displaying Route Leg and Waypoint Information ................3-13
Erasing or(re)Naminga Route ..............................................3-14
Editing a Route ......................................................................3-14
3.4 Following Routesand Going to TargetPoints........................3-16
Follow a Route .......................................................................3-17
Reversea Route .....................................................................3-17
TargetPoint Arrival ...............................................................3-18
Alter a Route ..........................................................................3-18
GoingtoanIndividualTarget ................................................3-20
Stop Follow or StopGoto ......................................................3-23
3.5 Changingthe DisplayMode...................................................3-23
CDIDisplay ...........................................................................3-24
BDIDisplay ...........................................................................3-25
WaypointData .......................................................................3-26
Navigation Data .....................................................................3-27
Time/DateData .....................................................................3-28
3.6 Transferring Waypoints and Routes.......................................3-30
DisplayedWaypoints.............................................................3-30
3.7 UsingTracks ..........................................................................3-32
Setting up aTrack ..................................................................3-33
ClearingtheCurrentTrack ....................................................3-34
SmartRoute ............................................................................3-35
3.8 DisplayingChart Information................................................3-35
PortServices ..........................................................................3-35
Tide Information ....................................................................3-36
3.9 ManOverboard(MOB) .........................................................3-42
3.10Alarms....................................................................................3-43
Chapter 4: Setting Up .................................................................................4-1
4.1 Introduction..............................................................................4-1
4.2 System SetUp Parameters .......................................................4-1
BearingMode ..........................................................................4-3
KeyBeep .................................................................................4-3
Units ........................................................................................4-3
Variation ..................................................................................4-3
Date Format .............................................................................4-4
Time Offset ..............................................................................4-4

vii
Language .................................................................................4-4
Simulator .................................................................................4-4
Simulated SOG ........................................................................4-4
Simulated COG .......................................................................4-5
4.3 Chart Set Up Parameters ..........................................................4-5
Orientation ...............................................................................4-7
Plotter Mode ............................................................................4-7
ShowWaypoints ......................................................................4-7
Waypoint Symbol ....................................................................4-8
Autozoom ................................................................................4-8
ScreenAmplifier .....................................................................4-8
COG Vector .............................................................................4-8
ArrivalCircle ...........................................................................4-8
AnchorAlarm ..........................................................................4-8
XTEAlarm ..............................................................................4-9
Chart Text ................................................................................4-9
Chart Boundaries .....................................................................4-9
Depth Contours <5M ...............................................................4-9
Depth Contours 10M ...............................................................4-9
Depth Contours >20M .............................................................4-9
Position Calibration .................................................................4-9
4.4 GPS Setup ..............................................................................4-10
Chapter 5: Installation .............................................................................. 5-1
5.1 Introduction..............................................................................5-1
EMCInstallationGuidelines ...................................................5-1
SuppressionFerrites ................................................................5-2
Connections to Other Equipment ............................................5-2
5.2 Unpackingand Inspecting the Components ............................5-2
Items Missing? ........................................................................5-3
Registering this Product ..........................................................5-3
GPS Receiver Installation .......................................................5-3
5.3 Installing the Chartplotter ........................................................5-6
Trunnion (yoke)Mounting ......................................................5-8
Panel Mounting .......................................................................5-9
5.4 CableRunning .......................................................................5-10
Introduction ...........................................................................5-10
Connectors.............................................................................5-11
5.5 SystemCheckandInitialSwitch On......................................5-13
EMCConformance ...............................................................5-13
SystemCheck ........................................................................5-13
Initial Switch On ....................................................................5-13
CheckingChartplotterOperation ..........................................5-14

viii
Chapter 6: Maintenance & Fault Finding .................................................6-1
6.1 Maintenance.............................................................................6-1
RoutineChecks .......................................................................6-1
Servicing andSafety ................................................................6-1
6.2 Resetting the System................................................................6-2
6.3 ProblemSolving.......................................................................6-2
Fault Finding ...........................................................................6-3
6.4 WorldwideSupport..................................................................6-3
Appendix A: Raychart 425 Specification ................................................ A-1
Appendix B: Raystar 120 Specification ...................................................B-1
Appendix C: NMEA Data ............................................................................C-1
Appendix D: List of Abbreviations ......................................................... D-1
GPS Receiver Mounting Template ............................................................ T-1
Raychart 425 Mounting Template ............................................................ T-3

Chapter 1: Overview 1-1
Chapter 1: Overview
1.1 Introduction
ThishandbookdescribestheRaychart 425Chartplotter andits
associatedRaystar 120 GPS Receiver.The Raystar 120utilizesSatellite
Differential (SD) signals for enhanced navigational accuracy over
conventional shorebased differential GPS systems(dGPS).
TheRaychart425 Chartplotteriswaterproofandcanbeinstalledeither
aboveorbelowdeck. The equipment comprises:
•6 in LCD display with Chart holder compartment for a Navionics®
Nav-Chart electronic chart card
•Raystar 120 GPS Receiver
The Raychart 425Chartplotter can output GPSand Waypoint data to
operate withotherequipment,eg. an autopilotorrepeaterinstrument
connected via the NMEA0183 interface1.
How this Handbook is Organized
Thehandbookis organized asfollows:
Chapter1: Overview(this chapter) provides anoverview of the features
andfunctionsofthe Raychart 425andassociatedRaystar 120. Please
read this chapter to familiarize yourself with the Chartplotter and
Satellite Differential system.
Chapter2: GettingStartedprovidesanoverviewofthecontrolsandhow
tostart usingthechartplotter.
Chapter3: Operationprovidesdetailed operatingproceduresforthe
main chartplotterfunctions-plottingwaypointsand routes,navigation
functions, Track handling, Port andTide information, ManOverboard
andAlarmfunctions.
Chapter4: Setting Upprovides instructionsforsetting upthe
chartplotter systemandchartingpreferences.
Chapter 5: Installationprovidesplanning considerationsanddetailed
instructions for installing the Chartplotter and GPS Receiver on your
vessel.
Chapter6: Maintenance&FaultFindingprovidesinformationonuser
maintenance and what to do if you experience problems.
1. National Marine Electronics Association (NMEA) 0183 interconnection standard, Version 2.3
April 1998.

1-2 Raychart 425 Chartplotter
Appendix Adetails the Technical Specification for the Chartplotter.
Appendix Bdetails the Technical Specification for the GPS Receiver.
Appendix Cdefines the NMEAdata received/transmittedby the
Chartplotter.
Appendix Dprovides a list ofabbreviationsused in this handbook.
Installation Templates forthe Raychart 425anditsassociated
Raystar 120 GPS Receiverare included at theendof this handbook.
1.2 Satellite Differential System
The Raystar 120 GPS Receiverutilizes anew satellite differential
correctionsystemtoimprovetheaccuracyandintegrityofthebasicGPS
signals. Three separate compatible systems currently exist or are being
developed:
1. Wide Area Augmentation System (WAAS). Developed by the Fed-
eral Aviation Administration (FAA) in the USA.
2. European Geostationary Navigation Overlay System
(EGNOS). This system is beingdeveloped by aEuropean consor-
tium.
3. TheMTSATSatellite-Based Augmentation System (MSAS).Being
developed by the Japan Civil AviationBureau (JCAB) forcivilavia-
tionuse.
The area coverage of the WAAS system is the furthest advanced so far
and includes the entire United States of America but also covers large
areas outside of thisas shown in Figure 1-1.
Figure 1-1: WAAS Coverage Map
D4910-1
0˚
15˚N
30˚N
45˚N
60˚N
75˚N
15˚S
0˚15˚W30˚W45˚W60˚W90˚W 75˚W105˚W120˚W135˚W150˚W165˚W 15˚E135˚E 150˚E 165˚E 180˚

Chapter 1: Overview 1-3
The combination of the WAAS, EGNOS and MSAS systems will
provide globalsatellite based differential GPS augmentation into the
future.
How it Works
The following description is based on WAAS, butthe principlesapply
equally to the EGNOS andMSAS systems.
WAAS comprises the following components:
•GroundReference Stationsacrossthe USA
•Master Stationslocated at EastCoast and WestCoast
•Geostationary Satellites located above the equator
The Ground ReferenceStationsare located at known positionsand
receive datacontinuouslyfromGPS.The GroundReferenceStations
send their data to the Master Stations which calculate the errorof the
GPS-received positionsandgenerate correctionaldata.
The corrected ‘differential’signals are thensent to the two
Geostationary Satellites whichbroadcast the corrected data on the
standard GPS frequency, making it available to the user’s Raystar 120
GPS Receiver.
The Raystar 120 GPS Receiver uses the correctional data transmitted by
the Geostationary Satellites to refine the GPS positional data for greater
accuracy.
WAAS is shown pictoriallyin Figure 1-2.
Figure 1-2: The WAAS System
D4903-1

1-4 Raychart 425 Chartplotter
Availability of the WAAS System in North America
The WAAS system is presently broadcasting and being tested for
aviationuse.ItisexpectedtobecertifiedbytheFAAin2002.Duringthis
testingandcertificationperiod,continuousserviceisexpected,however,
brief signal outages may occur as refinements and upgrades are made to
the system. The statusof WAAS and planned outages areavailable on-
line at Raytheon’s website http://wwws.raytheontands.com/waas
or http://www.raymarine.com
Coverage Outside of North America
EGNOS is currently in the early testing and qualification phasesand
signal outagesmay occur atany time. The status ofEGNOS and any
planned outages areavailable on-line atRaytheon’s website
http://www.raymarine.com
Use of Satellite Differential is currently disabled outside ofthe WAAS
receptionarea.When EGNOS isqualifiedfornavigational use, a
procedurewill be published onour website whichwill enable EGNOS
operation. See http://www.raymarine.com for latest information.
Accuracy and Continuation of Broadcast Coverage
The navigational accuracy ofequipment using these satellite broadcast
SD signals duringthe testingand qualification phases is not guaranteed
by Raytheon Marine Company or Raytheon Corporation, noris the
continuation of thebroadcast SD signalsthe responsibility ofRaytheon
MarineCompany or RaytheonCorporation.
1.3 The Chartplotter
Display Functions
The Raychart 425 Chartplotter includes the following functions:
•Create, Place, Move,Edit or Erasea Waypoint.
•GoToWaypoint,Port,Facilityor Cursor.
•Display TideHeights,TideCurrents,Sun and Moon data.
•Create, Save, Name, Edit or Follow a Route.
•ReviewRoute and WaypointLists.
•Display vessel’s track on-screen.
•Converta track to a route (SmartRoute).
•Set Up Alarms and Timers.
•Man OverBoard (MOB) to navigate back to a missingperson or
object.

Chapter 1: Overview 1-5
•Satelliteacquisition data.
•Uses positional information from Satellite Differential GPS to dis-
play vessel’sposition.
•The display andkeys can be illuminated fornight-time use.
•Detailednavigationinformationisdisplayedwhen a Navionics®
Nav-Chart card isinstalled.
•Thevessel’spositionisshownasaboatsymbolpointinginitscurrent
direction.
At the top of thechartplotter screen a status bar displays chart scale,
cursorpositionplus range andbearingor the vessel’sposition, Speed
Over Ground(SOG) and Course OverGround (COG). When in
Simulatormode,aflashingSIM indicationisdisplayedininversevideoin
the top lefthand corner withcorrespondingNorthUp (NU), Head Up
(HU)orCourseUp (CU) information. If in Overzoom mode, this is
indicated byOV.
Waypoints previously placed are displayed and the currentroute is
shown. Data can beviewed for currentroute or chartobject.
Thechartplotterscreen canalsoshowadditionalinformation,depending
on your currently selected options, set up selectionsand data available
fromotherequipment.
An example chart display in its default configuration, with a chart card
installed,is showninFigure 1-3.
Severalfunctions are available tocontrolthe display as follows:
•Zoomin/out.
•Pan the Display.
•Centre the Chart around theVessel.
OperationofthesefunctionsisdescribedinChapter 2.
Display Options
Display options are selected in System Set Upand Chart Set Up as
describedinChapter 4.
Operating Controls
The chartplotter isoperated by meansof the following controls:
•Atrackpad.
•Sixdedicated push-button (labelled)keys.
•On-screen pop-up menus from which options are selected.
•On-screen databaselists which enable the editing of items.
ThecontrolsareshowninFigure 1-3;theyareback-litfornight-timeuse.

1-6 Raychart 425 Chartplotter
Figure 1-3: Raychart 425 Chartplotter Operating Controls
Trackpad and Cursor
The trackpad is used to move the cursor horizontally, vertically or
diagonally.Thecursoristhecross-hairsymbol(+)whichisusedtoselect
apositionor item on the chart.
Thelongerthattheedgeofthetrackpadispressed,thefasterthe cursor
moves.Thecurrentcursorpositionisshownin thestatusbaratthetopof
thescreen.
The cursor is context-sensitive. Some items on the screen,such as
waypointsand chart objects have information associated with them.
When the cursor is placed over such objects, their information is
displayedin the status bar. In addition, a function bar is displayed for
certainitems. Forexample,whenthe cursor is placed over a waypoint,
the waypoint data is displayed inthe status bar and the waypoint options
function is displayed.
PA G E
GOTO
MOB
CLEAR
ENTER
TOPSHAM
EXETER
TEIGNMOUTH
EXMOUTH
TORQUAY
DARTMOUTH
PLYMOUTH
ENPORT
SALCOMBE
PORTLAND
HARBOUR
ISLE O
CAP DE
LA HAGUE
ALDERNEY
GUERNSEY
JERSEY PORTB
CSR 48°30.367'N
POS °35.636'W
128 nm
FIND SHIP ROUTES WAYPOINTS
BRG 23 °T
RNG 40.9 nm
SIM OV NU
GOTO key
PAGE key
CLEAR key
RANGE key
ENTER key
Trackpad
POWER key
Navionics
®
Nav-Chart
compartment
Cursor
Primary
Function Bar
Status Bar
D4982_2

Chapter 1: Overview 1-7
Note:During many operations the cursor cannot be moved around the
screen,eg.whilstafunctionbarisdisplayed,thecursorisusedexclusive-
ly for selection. In suchcases, three rapid beeps indicate invalid action.
Dedicated Keys
These keys have fixedfunctions. Some keys can be used in either of two
ways:
•Press:Press the key momentarily and then release it. This method is
usedformostkey operations.
•Pressandhold:Press the key, keepitpressedfor the periodoftime
stated(eg. 3 seconds),thenrelease it.
Whenadedicatedkey is pressed,one of the following occurs:
1. Theassociatedoperationisactioned,eg.changechart scale(RANGE
key).
2. Apop-up menu isdisplayed,providingfurtheroptions.
3. A set of functionsis displayed.
Asakeyispressed,a singleaudiobeep confirms the key action.Ifthe
key-press is notvalid for the current screen ormode, three rapid beeps
soundto indicate that no responseisavailable.If required,thekeybeeps
can beturnedoffas part of yourset up procedure(seeChapter 4).
Function Bar
TheFunctionBar at the bottomof thescreen contains a number of
functionswhichchangeaccordingtothecurrentoperation.Thefunctions
are groupedinto relatedsets andsubsets providingaccessto the various
functions. The primary function bar is displayedwhen the ENTER key is
pressed.
The currently selected function is highlighted by means of agray
background.
When a functionis invoked,one of the following occurs:
1. The associated operation is actioned, eg. GOTO WAYPOINT.
2. A sub-set of functions is displayed.
3. Apop-up menu isdisplayed,providingfurtheroptions.
4. The appropriate databaselist (Routeor Waypoint) is displayed.
As with dedicated keys, when the action is invoked, a single audiobeep
confirmstheaction.Iftheselectionisnotvalid,threerapidbeepsindicate
invalid action. Key beeps can bedeactivated as part of the setup
parameters(see Chapter 4).

1-8 Raychart 425 Chartplotter
Pop-Up Menus
Pop-upmenus usually providevarious options. When a pop-upmenu is
on-screen, a set of associated functionsis also displayed.
Use the trackpad to select an option from the menu, then use the
appropriate functionto set the option,eg. the radius of thewaypoint
arrivalalarm can be specified and the selected navigation data can be set
on/off.
Database Lists
The waypointsand routes created on the chartplotter are stored in
database lists. These lists can be viewed and items selected for editing.
As with pop-up menus, when a database list is on-screen, a set of
associated soft keys is also displayed; use the trackpadto select an item
from the list, then use the appropriate function to edit the item, eg. a
Waypoint or aRoute can be erased.

Chapter 2: Getting Started 2-1
Chapter 2: Getting Started
2.1 Introduction
Thischapterprovides informationand instructionstoallowyou to
practice using the Raychart 425Chartplotter. It is intended to help you
become familiar with the controls before you start using the chartplotter
forroutinenavigation.
Note:There is often more thanone methodof performing a particular
task.NormaloperatingproceduresaredetailedinChapter 3.Whenyou
become familiarwith thesystem you can adapt these procedures to suit
yourmethod ofoperation.
Conventions Used
Throughoutthis handbook, thededicated (labelled) keysare shown in
boldcapitals;for example,ENTER. Thefunctionsandoptionsareshown
in normal capitals, eg. LIGHT.
Operatingprocedures,which may consistof a single key-press,or a
sequence of numbered steps, are indicated by a➤symbol in the margin.
Whentextualdata isdisplayedon screen,any unavailable data isshown
as dashes,one per character.
Where proceduresrefertoSelect,thisimplies usingthetrackpadto
highlightafunction,thenpressingtheENTER keytoactionthatfunction.
Simulator
The Chartplotter display unit includes aSimulatormode, which allows
you to practice operatingyour chartplotter without data from a GPS
system. You will need to use the set up options to switch the display to
Simulator mode, as described in Section2.2, Switching On/Off.You can
use it in either of two ways:
•Before the chartplotterhas been installedon your vessel. Inthiscase,
youonly need toconnect the Chartplotter display unit toa 12VDC
power supply, fusedat 1A,connectingthe red corefrom the power
leadtopositive(+)andtheblackcoretonegative(-);seeChapter 5for
full details.
•Afterthe chartplotterhas been installedonyourvessel andwhilein a
marina orotherwise at anchor.

2-2 Raychart 425 Chartplotter
2.2 Switching On/Off
➤To turn the chartplotter display unit on, press the POWER key. The keys
illuminate, the display unitbeeps and the Raychartlogo is displayed,
followedby the followingwarning:
WARNING
THE ELECTRONIC CHART IS AN AID TO
NAVIGATION DESIGNED TO FACILITATE
THE USE OF AUTHORISED GOVERNMENT
CHARTS, NOT TO REPLACE THEM. ONLY
OFFICIAL GOVERNMENT CHARTS AND
NOTICES TO MARINERS CONTAIN ALL
INFORMATION NEEDED FOR THE SAFETY
OF NAVIGATION AND, AS ALWAYS, THE
CAPTAIN IS RESPONSIBLE FOR THEIR
PROPER USE.
Press “ENTER”to continue.
When you have read and understood the warning, press the ENTER key.
The chart is displayed.
If this isthe first time that the chartplotter has been switched on, andno
chart card is installed, thedisplay shows the background world mapat
Lat 0°/Lon 0°. Otherwise, the display shows theselected chart area and
any datathat were displayed when theunit was last used.
➤Toturn the displayunit off, pressand holdthe POWER key forat least
3 seconds. A countdown timer is displayed; when it reaches zero the
displayandkey back-lightsextinguish.
Changing the Lighting and Contrast
Youcanchange thelevelofbacklightingandcontrastforthescreen.The
key backlighting remains onto enable the keys to be seen at all times.
➤To change the lighting and contrast:
1. Press the POWER key to display the lighting controls (Figure 2-1).

Chapter 2: Getting Started 2-3
Figure 2-1: Lighting Controls
The last-used control is highlighted in inverse video.
2. Press the trackpad left/right to select the LIGHTS function.
3. Press the trackpadtop/bottomto increase ordecreasethe lighting to
one of four levels. You can press and hold the trackpad to change the
setting more rapidly. The lighting level is adjusted as you change the
setting.
4. Pressthetrackpadrighttoselectthecontrastcontrol.Thereare16con-
trast levels. Adjust the setting as for lighting to select the best viewing
level.
5. PressCLEAR to return to the chart screen, with the new lighting and
contrastlevelsretained.
When the display unit isswitched on,screen lighting is restored to ON if
itwasON previously. Whilstthe unit isswitched on,the chosenlighting
level is retained until youreset it.The new contrast levelis retained until
youresetit,even after power-off, unlessyou set the controlvery low or
very high;in this case, the contrast will be restored onpower-up as
follows:
•Contrast set < 30% restored to30%
•Contrast set > 70% restored to70%
2.3 Chart Simulator
When simulator mode is started, your initial simulated position is
wherever the cursor was last positioned. To practice using the
chartplotter in a particular chart area, use the trackpad topan to that area,
thenswitch simulatorON.
Note:If real position data is availableand the simulator is active, simu-
lated data takes precedence. On power-up the simulator defaults toits
previoussettingon power-down.Careshouldbetakento determinede-

2-4 Raychart 425 Chartplotter
siredmode on power-up.Simulated data should neverbeusedfornav-
igationalpurposes.
➤To view a chart image using simulated data:
1. Press the PAGE keyto displaythe SET UP functionbar (Figure 2-2):
Figure 2-2: Set Up Function Bar
2. Presstrackpadleft/righttohighlightSYSTEM SET UP andpressENTER
to display the System Set Up menu.
3. Usetrackpadup/downto highlightthe SIMULATOR option.
4. Usetrackpadleft/rightto selectON.
5. Ifnecessary,use trackpadup/down to highlight, in turn, the SIMU-
LATED SOG andCOG optionsand trackpadleft/righttosetasrequired.
These set Speed in 1Kt intervals and Course in 1°intervals, respec-
tively.
6. Press CLEAR twice to return to the chart screen.
7. A flashing SIM indicatorappears in inverse videoin the status bar at
the top ofthe chart screen.
2.4 Controlling the Display
Thissection describeshow to:
•Change thedisplay mode.
•Movearoundthechartbypanningthedisplay,changingthechartcen-
tre and changingthe chart scale.
Selecting the Display Mode
UsethePAGE keytoselectthedisplaymode.Selectthefollowingmodes
by repeat pressesof the PAGE keyas listedbelow and shownin
Figure 2-3:
•Set Up functions (see Chapter 4)
•CourseDeviationIndicator(CDI)
•Bearing & Distance Indication (BDI)
•Waypointdata
•Navigationdata
•Time/Datedata
•Return to Set Up functions
Note:Press GOTO toreturntonormalChartdisplayat any time.
D4694_1