Position Offset, Datum Selection | Raymarine 300 guide

Chapter 4: Setting Up the GPS Plotter

4-11

Datum Selection

You can select either WGS 84 or LOCAL datum. In LOCAL mode, you are presented with a Datum Names list. Use the trackpad up/down to scroll through the list; press ENTER to select the option and close the menu.

Note: When the datum (reference grid) is changed, the geographical position of waypoints remains constant. However, the latitude/longitude values change as a result of their having been calculated from a different datum. When adding waypoints numerically to the waypoint list, or via SeaTalk, NMEA, it is important that they are referenced to the same da- tum in which the display is to be operated.

Position Offset

You can offset the vessel position to allow for differences between the GPS and paper chart data. This may be useful if you are using a datum that is not available on the Chartplotter, or if you are referring to a paper chart drawn to unknown datum.

You can change the offset by moving the cursor to the known vessel position. This offset is applied to all incoming position data. The default offset value is zero.

When position offset is switched on, all displayed vessel position data is annotated (C) to indicate it has been corrected.

To switch the position offset on/off:

Select the POSITION OFFSET option, then press the OFFSET OFF ON soft key to toggle the option on/off. The last selected offset value is added to position data and the vessel is displayed at the corrected position.

To set a new offset value:

Select the POSITION OFFSET option, then press the SET UP OFFSET soft key. If necessary, position offset is automatically toggled on.

Use the trackpad to move the cursor to the required vessel position; the cursor position is displayed in a position offset data box.

Press the ACCEPT OFFSET soft key, the vessel is displayed at the new position. Press ENTER to return to the default display.

To set the offset value to zero:

Select the POSITION OFFSET option, then press the SET UP OFFSET soft key Press the CANCEL OFFSET soft key. The position offset value is set to zero

Image 89

Raymarine 300 manual Position Offset, Datum Selection

Contents

Raynav 300 GPS Plotter Page Waas Satellite Differential GPS Raynav 300 GPS Plotter Owner’s Handbook Extended Offshore Coverage Availability of the Waas System in North America Prelim Pages Coverage Outside of North AmericaAccuracy and Continuation of Broadcast Coverage Preface WarrantyEMC Conformance Technical Accuracy Contents Raynav 300 Plotter Viii Prelim Pages Maintenance Routine Checks How this Handbook is Organized Introduction General FeaturesDisplay Display Modes Display Functions Plotter DisplayPlotter Functions GPS Data Pages Operating Controls Moving the Cursor Trackpad and Cursor Context-Sensitive Cursor Control Text Label FeatureDedicated Keys Pop-Up Menus Soft Keys Waypoint List Database Lists Simulator Power On/OffConventions Used 5050000N WPT RNG 00106000W 0.55nm 42% 60% Changing the Lighting and Contrast Controlling the Display Selecting the Display Mode Speed 11kts 320M Depth 12.5m 55nm050M 12.0ktsDATA Plotter Display Control Functions Using Find ShipMoving Around the Plotter Screen Panning the Display Changing the Display Scale Changing the Display Center Customizing the Display Options Switching the Cursor Data Box On/off Switching Grid On/off Simulator Mode Raynav 300 GPS Plotter Operation Changing the Display Mode Data Display Pages GPS Data GPS/Waypoint Data 123400 Waypoint Data RNG 0.55 nm Boat Data Boat/Environment Data Auto Environment Data Kts BDI Data CDI/BDI DataCDI Data Data Boxes 300T Data Log CMG Introduction Working with Waypoints 17 Waypoint Soft Keys Placing a Waypoint NEW Waypoint WPT Position Loran TDs 23 Waypoint Soft Keys Selecting a Waypoint Editing Waypoint Details Waypoint Data Display 25 Waypoint Symbol Selection Moving a Waypoint Erasing a Waypoint 26 ST80 Navigator Keypad Using the ST60 or ST80 Navigator Keypad Selecting an Entry in the Waypoint List Raynav 300 GPS Plotter Working with Routes NEW Route Creating a New Route 30 Route Soft Keys 31 Make Route Soft Keys Save Route Saving the Current Route Full Route Details Displaying Route Information Info for Route NEW Route Route Leg and Waypoint Information Clearing the Current Route from the Screen 37 Stop Follow Soft Keys Retrieve a Route from the Database Using the Route List to Erase or Name a Route Adding/Removing Waypoints at the End of the Route Editing a RouteInserting a Waypoint into a Route Reversing the Route Removing a Waypoint from within the Route Going To an Individual Target Point Following Routes and Going to Waypoints Follow a Route Lowing ROUTE. Cancel Route and Goto CURSOR? Press the Follow Route soft key Other Follow Route Options Stop Follow or Stop Goto Restart Cross Track Error XTEJoining a Route Advancing to a Waypoint Target Point Arrival Displayed SeaTalk Waypoints Transferring Waypoints and RoutesTransferring Database Lists Receiving Waypoints from Other Equipment Sending Waypoints to Other Equipment Using Tracks 41 Track Interval Setting Guide Setting Up a Track Clearing the Current Track 42 Set Up Soft Keys Saving and Naming the Current Track SmartRouteManaging Tracks Save TRACK, Name Track or Erase Track soft key Naming, Erasing and Showing a Track 2nm Man Overboard MOB AlarmIndicates Alarms & TimersExternal Alarms 47 Alarms Set Up Menu Setting Alarms and Timers Cursor Echo Raynav 300 GPS Plotter Setting Up the GPS Plotter To set the default parameters Changing the Set Up Parameters Factory New Menu Options Default System Set Up Parameters Cursor Reference Bearing Mode Day/Night Cursor ReadoutHelp Key Beep Auto Mode Menu Timeout PeriodAutopilot Pop Up Units Date and Time Settings Nmea OUT Set UpManual Mode Cursor Echo GPS SOG/COG Filter GPS SourceNmea Input Language Factory New Parameter Options Default Plotter Set Up ParametersChart Orientation Default Waypoint Symbol Waypoint SymbolsWaypoint Numbers Vectors Datum Selection Position Offset Fix Mode GPS Set Up Differential GPS SET UP GPS Set Up Signal Strength and Signal to Noise Ratio GPS ModeBeacon ID Beacon Frequency Differential Age Restart GPS Raynav 300 GPS Plotter EMC Installation Guidelines Installation Connections to Other Equipment Suppression Ferrites Items Missing? Unpacking and Inspecting the ComponentsRegistering this Product Supplied with Surface Mounting GPS Antenna Installation Surface Mounting Arrangement Refer to Figure Pole Mounting Plotter Installation Trunnion yoke Mounting Raynav 300 GPS Plotter Dimensions Panel Mounting Panel Mounting Connecting to Other Equipment Cable Running Connectors PWR/NMEA Connector Antenna Connector Function Color Maximum Power Cable Extension Lengths System Check System Check and Initial Switch OnSeaTalk Connector Checking the Plotter Operation Initial Switch On Raynav 300 GPS Plotter Routine Checks MaintenanceEMC Servicing and Safety Guidelines Disposal Resetting the SystemPower-on Setting Problem Corrective Action Problem Solving Raynav 300 GPS Plotter Appendix a Technical Summary Feature Description Face Memory Capacity Data Received Source Appendix B SeaTalk and Nmea Data RMB, APB, BWC, BWR Data Output SeaTalk Nmea Out Abbreviation Meaning Appendix C List of Abbreviations Raynav 300 GPS Plotter Important Read Carefully Page GPS Antenna Mounting Template Raynav 300 Plotter 03 in 102.3 mm Cut out shaded area only Raynav 300 GPS Plotter Index Xii See also Waas Managing Xiv Waas Xvi Limited Warranty Warranty Certificate Warranty Limitations Factory Service Centers