Raymarine 420D manual CDI display

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Chapter 3: Operation	3-21

CDI display

The CDI display shows Cross Track Error (XTE) and distance to waypoint presented in a ‘runway’ format:

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The ‘runway’ represents a 0.3nm width with the vessel symbol shown at the bottom. Bearing to Waypoint, Distance to Waypoint, Time to Go (TTG), Course Over Ground (COG) and Speed Over Ground (SOG) are also shown. Time to Go is calculated on the basis of distance to destination and Speed Over Ground (SOG) towards the destination.

At waypoint ranges greater than 4nm, the symbol remains at the top of the screen. As the waypoint range falls below 4nm, the symbol moves down the centre line.

The chequered pattern moves down the screen to simulate movement when SOG is greater than 2 knots.

The steering instruction is STEER STARBOARD if the XTE is 0.01nm or more to port, STEER PORT if the XTE is 0.01nm or more to starboard or ON COURSE if the XTE is less than 0.01 on either side. If no GOTO or follow is in progress, the steering instruction is NO TARGET.

The graphical XTE indication places arrows either side of the steering instruction and pointing towards it, dependent on the value of XTE.

The first arrow is shown when the XTE reaches 0.01nm, the second at .05nm and subsequently at 0.1nm intervals .

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Contents Distributed by Raychart 420/ 420D Chartplotter Page RayChart 420 and 420D Chartplotter Owner’s Handbook Safety NoticesUnited States Preface WarrantyEMC Conformance RayChart 420/420D Chartplotter Contents Join a route Advance to a waypoint Table of Contents Vii For accessories and parts Table of Contents RayChart 420/420D Introduction OverviewHow this Handbook is organised General Chartplotter displayDisplay functions Operating controls Display optionsTrackpad and cursor 128 nmDedicated keys Function barPop-up menus Database listsConventions used Getting startedSimulator Switching on/off Chart simulator Selecting the display mode Controlling the displayTime 1234 Date 26/01/99 Moving around the chart Using Find ShipChanging the chart scale Status Bar Chart rangeUsing Navionics Nav-Chart cards 128 nmInserting a Nav-Chart card Displaying the chart data Removing a Nav-Chart cardDisplaying chart information To obtain port services information RayChart 420/420D Chartplotter Safety OperationWorking with waypoints IntroductionPlacing a waypoint Operation Selecting a waypoint Editing the waypoint details Enter Erasing a waypoint Moving a waypointWorking with routes Creating a new route Saving the Current Route Clearing the current route from the screen Retrieving a route from the databaseErasing or renaming a route Displaying route leg and waypoint informationEditing a route Inserting/deleting waypoints in a route To add a waypoint to the end of a routeFollowing routes and going to target points Follow a route Reverse a routeAlter a route Target point arrivalJoin a route Restart Cross Track Error XTE Advance to a waypointGoing to an individual target Go to a waypointGo to cursor Go to a portChanging the display mode Stop follow or stop gotoCDI display BDI display BRG 234 T RNG 12.4 nm Waypoint dataCOG 230 T SOG 6.8 Kts Navigation dataTime Date 26/01/99 Time/Date DataDisplayed waypoints Transferring waypoints and routesManaging database lists Using tracks WPT/ROUTE TransferSetting up a track SettingClearing the current track Man Overboard MOBSmartRoute‰ Alarms Range key operates normally to change chart scaleSetting up the chartplotter System set up parametersMenu Options Factory New Default Setting Bearing mode Key beepUnits VariationTime offset LanguageSimulated SOG Simulated COGChart set up parameters Parameter Options Factory New Default Setting Plotter mode Waypoint symbolOrientation Show waypointsAnchor alarm XTE alarmChart text Screen amplifierChart boundaries Depth contours 5MDepth contours 10M Depth contours 20MGPS setup Setting Up the Chartplotter RayChart 420/420D Chartplotter Installation EMC Installation GuidelinesSuppression ferrites Unpacking and inspecting the componentsConnections to other equipment Location Items Missing?Registering this Product Selecting the best location122 mm 4.8 Connecting to other equipment Mounting the chartplotterTrunnion yoke mounting Panel mountingD47221 GPS connector Chartplotter connectorsCabling POWER/NMEA connector System Check and Initial Switch On Function ColorInitial Switch On System CheckChecking the Chartplotter Operation RayChart 420/420D Chartplotter Maintenance & fault finding MaintenanceServicing and Safety Routine checksResetting the system Two types of reset are available for the ChartplotterProblem solving Fault findingHow to contact Raytheon Marine US For accessories and partsFor product repair and service Worldwide supportHow to contact Raytheon Marine Europe RayChart 420/420D Chartplotter Appendix a Specification Y2KRayChart 420/420D Chartplotter Appendix B Nmea data RayChart420 Appendix C List of abbreviations COGRayChart 420/420D Chartplotter Cut out Shaded area Only RayChart Limited Warranty Certificate Warranty LimitationsFactory Service Centers United States of America