Measuring using the range rings | Raymarine C140w, C90w instruction

9.10Using radar to measure distances, ranges, and bearings

When you are using the radar application, you can measure distances, ranges and bearings in a variety of ways.

These options are detailed in the table below:

	Distances
	Between	Range From
Functions	Points	Your Vessel	Bearings
Range Rings	Yes	Yes	No
	(approximate	(approximate
	distance)	range)
Cursor	No	Yes	Yes

Variable Range	No	Yes	No
Markers (VRMs)
Electronic	No	No	Yes
Bearing Lines
(EBLs)
Floating VRMs	Yes	No	No

Floating EBLs	No	No	Yes

Measuring using the range rings

Use the range rings to gauge the approximate distances between points. Range rings are concentric circles displayed on the screen and centred from your boat at pre-set distances. The number and spacing of the rings changes as you range in and out.

Measuring using the cursor

To measure the bearing and range from your boat to a specified target, move the cursor to the appropriate position on the screen.

Note: If cursor position is not shown in the Databar, go to Menu > Databar Setup > Configure.

Measuring using Variable Range Markers (VRMs)

A Variable Range Marker (VRM) is a circle centred on your vessel’s position and fixed with respect to the heading mode. When this circle is adjusted to align with a target, its range from your boat is measured and displayed on the ADJUST VRM softkey. The data is also displayed if you select the VRM with the cursor.

Using radar

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Raymarine C140w, C90w manual Using radar to measure distances, ranges, and bearings, Measuring using the range rings

Contents

Page Page Trademarks and registered trademarks Page Contents Using AIS 133 Using the Course Deviation Indicator 145 Customizing your display 207 Important Information Safety notices Water ingress TFT LCD DisplaysDisclaimers EMC conformance CompactFlash cardsSuppression ferrites Connections to other equipment Product disposal Warranty registrationIMO and Solas Technical accuracy Handbook information Series handbooks User reference handbook information 2.2 About this manualSeries handbooks Description Part number Additional handbooks Description Part number Getting started Device Type Suitable Devices Connectivity Multifunction display system integration AIS Powering the display on Powering the display on/offPowering the Display Off Controls Using the cursor Using buttons and softkeysLabel Feature Application List of cursor labels Displaying applications Navigating pages and menusSelecting a page set and application Selecting an application window Screen information Accessing a menu Using menusEditing dialog box information Status icons Initial setup procedures Initial setupSetting the language, date/time, and units of measurement Adjusting the display lighting System setup menu Bearing Mode Menu item Description Options TD SetupChain Slave 1/2 Menu item Description Options Settings Reset Ground Trip ResetReset Defaults Settings and Data Units Setup Menu item Description Options Date/Time SetupTemperature Units Volume Units SeaTalk Alarms If Nmea Output SetupData Alarms If you Heading If Nmea Port Setting Enable Password Menu item Description Options Waypoint PasswordSetup Change Password Series Widescreen user reference Managing display data Inserting a CompactFlash card CompactFlash cards overview Press the card eject button Removing a CompactFlash Card Saving data to a CompactFlash card Writing and retrieving dataRetrieving data from a CompactFlash card Erasing data from a CompactFlash card Operating a networked display Transferring data using a PCTransferring waypoint and route data Exceptions Designating a Data Master Display Designating the master display Using waypoints Waypoints How waypoints are shown in different applications Waypoints in the CDI and 3D chart applicationsWaypoints in the Fishfinder Application Displaying the waypoint list Waypoint placement Waypoint navigation Navigating to a waypoint using the Wpts MOB buttonNavigating to an existing waypoint selected on screen To stop navigating to a waypoint Editing a waypoint Changing a waypoint symbolChanging waypoint details Moving a waypoint Erasing waypoints Waypoint groups Changing the default waypoint groupDisplaying the waypoint group list Making a new waypoint group Erasing a waypoint group Password protecting your waypointsShowing and hiding waypoint groups Changing the waypoints password Specifying a password for waypointsDisabling password protection for waypoints Using the chart Ensure safe navigation Chart application overview What the chart displays Using the chart safely Chart datum Chart cards Selecting the chart setup menu Chart setupChart setup menu options Menu item Description Options Object Information Vector Width Menu item Description Options Vector LengthRoute Width Menu item Description Options Record Vessel Track Record Vessel Menu item Description Options Track IntervalVessel Track By menu Track By menu Cartography setup menu options Selecting the cartography setup menu Menu item Description Options Spot Soundings Safety ContourDepth Contour Menu item Description Options Hide Rocks Menu item Description Options Marine Features Menu item Description Options Nav. Marks SymbolsLand Features Light Sectors Zooming in and out Moving around the chart Navigating to the cursor position on the chart Chart presentationChanging the chart display Working with multiple chart views Selecting local or system chart view Chart orientationNorth Up N-up Head Up H-up Setting the chart orientation Setting the motion modePress the Chart Mode and Orientation softkey Maintaining a view of your navigation Enabling chart offset Chart offsetChanging the chart offset value True Motion TM Resetting the chart offset value Chart layers Aerial photo overlayEnabling aerial photo overlay Specifying aerial overlay opacity Radar overlay AIS objects Bathymetric data Chart vectors 3D chart view locatorRange rings Enabling and disabling chart vectors Decluttering the chartDecluttering the chart display Displaying details of tides and currents Animated tide and current information Symbol DescriptionDisplaying details of currents Viewing animated tide and current information Using the port search option Additional chart informationUsing the cursor to find a port Controlling tide and current animations Business services and points of interest symbols Displaying details of services and points of interestDisplaying details of objects and features How to locate your vessel Locating your vessel on the chart displayDisplaying pilot book information Displaying panoramic photos Waypoint editing Waypoint navigation Showing and hiding waypoint symbols Hiding a waypoint on the chart displayWaypoint appearance Showing and hiding waypoint names Routes Building a route using new waypointsBuilding a route Building a route Building a route using the waypoint list Building a route using existing waypointsNavigation Options softkey Building a route from a track Press the Create Route from Track softkey Building a route from the current trackBuilding a route from a saved track Adding a waypoint at the start of a route Displaying route details using the route list Displaying route details using the cursorDisplaying the route list Displaying route details Press the Follow Route Options softkey Following a route using quick routeFollowing a route in reverse order Editing a route Removing a waypoint from a route Erasing a routeReversing a route Creating a track TracksDisplaying the track list Creating a Track Erasing a track Editing a trackPress the Review and Edit Tracks softkey Changing the name or color of a track Repositioning the chart ruler Positioning the chart rulerClearing the chart ruler Measuring distances and bearings Using the 3D chart Safety 3D chart overviewUses for the 3D Chart Selecting the 3D chart setup menu 3D chart setup3D chart setup menu options Function Description Options 3D chart display overview 3D chart cards3D chart view modes 3D Chart View Options Enabling or disabling the 3D chart depth scale 3D chart depth scale3D chart vessel view modes Changing the 3D chart vessel view mode Aerial photo overlay on 3D chart Using the 2D and 3D charts together 3D Chart Navigation Displaying 2D and 3D charts simultaneously 2D and 3D chart synchronizationSynchronizing the 2D and 3D charts Press the Chart Mode and Presentation softkey Displaying the 3D view locator on the 2D chart Using autopilot control Disengaging the autopilot in an emergency Autopilot status symbolsAutopilot control Pilot Control dialog Engaging the autopilot Enabling the autopilot control functionDisengaging the autopilot Silencing autopilot alarms Autopilot alarmsSilencing autopilot alarms and disengaging autopilot Autopilot control options Using radar Radar Radar Status Mode Icon Description of status Radar scanner power modesRadar overview Digital radar Radar range and image quality Powering the radar scanner on and offMaximum radar range Side Lobes Radar image qualityIndirect Echoes Blind Sectors Multiple EchoesSea Clutter Rain or Snow Clutter Interference Radar display overview Dual range radar operation digital scanners only Using Dual Range with SuperHD radarLimitations Dual Range Range covered Operation Press the Radar Mode & Operation softkey Radar mode and orientationEnabling Dual Range radar operation Selecting long or short range radar operation North Up N-UP Course Up C-UP Selecting the radar orientation mode Selecting the radar motion mode Press the Radar Mode and Orientation softkeyChanging the radar vessel offset Radar motion modes overview Tuning method Related options Description Radar tuning Digital scannersOffshore SuperHD Controls 110 Series Widescreen user reference Expansion Rejection thisAuto Adjusting digital radar gain presets Selecting digital radar gain presetsAdjusting digital radar preset gain Adjusting digital radar color gain Selecting the enhance echoes functions Selecting a digital radar color palette Adjusting the radar tune control Radar tuning Analog scannersEnabling radar expansion Enabling radar wakes Using radar 115 Automatically adjusts For high levels of sea Clutter Using radar 117 Adjusting analog radar FTC function Adjusting analog radar gainAdjusting analog radar rain function Adjusting analog radar sea gain Enabling radar wakes Enabling radar expansion Displaying the waypoint list Hiding a waypoint on the radar display Measuring using the range rings Using radar to measure distances, ranges, and bearingsMeasuring using the cursor Measuring using Variable Range Markers VRMs Measuring using combined VRM and EBL Measuring using Electronic Bearing Lines EBLs Creating a VRM or EBL on the radar display Measuring using floating VRM and EBLCreating a floating VRM or EBL on the radar display Using the radar range rings Using radar to track targets and avoid collisionsSetting up a radar guard zone Unfloating a VRM or EBL on the radar display Safety notices Enabling and disabling radar warning alarmsMarpa overview How a Marpa risk is assessed True mode Status symbols for Marpa targetsRelative mode Setting up Marpa Marpa options Displaying vessel vectors CPA graphicsParameter Descriptions Options Vector Length Parameter Descriptions Options Target History Selecting the radar alarms setup menu Radar alarmsUsing Marpa Acquiring a Marpa target to track Cancelling a Marpa target Radar setup menu options Setting up your radar Antenna Size Parking OffsetColor Palette Timed ReferenceTransmit Period 132 Series Widescreen user reference Using AIS AIS overview AIS Simulator ModeHow AIS Works AIS prerequisites Class a Class B Data Receive Send Classes of AIS data Displaying AIS vectors Enabling or disabling AISEnabling and disabling AIS vectors AIS silent mode AIS status symbolsEnabling and disabling AIS silent mode Target type Description Symbol AIS target symbolsViewing AIS target information Displaying detailed AIS target information Displaying safety-critical AIS information Using AIS to avoid collisionsSafety Messages Safe Zones Parameter Description Options Vector Length AIS optionsParameter Description Options Own Vessel Safe Zone Acknowledging AIS alarms AIS alarmsBuddy tracking Enabling and disabling buddy tracking Adding a vessel to your buddy list from AIS target list Adding a vessel to your buddy listAdding a vessel to your buddy list from main menu Editing a buddy’s details Displaying additional buddy information Deleting a buddyPress the Buddy Data Auto on OFF softkey Using the Course Deviation Indicator 146 Series Widescreen user reference Monitoring Your Course Using CDI Using the CDI ApplicationFollowing a route using the CDI application Going to a waypoint using the CDI application 148 Series Widescreen user reference Using the fishfinder Fishfinder screen Fishfinder introductionFishfinder overview Example fishfinder screen Sonar image Interpreting the seabed using sonarHow the fishfinder works Factors influencing the sonar display Clutter / Background noise Fishfinder presetsDisplay modes Selecting a fishfinder display mode Selecting a fishfinder presetFishfinder zoom mode Preset 3 Shallow or Fishfinder A-Scope mode Bottom Lock Enabling the Fishfinder A-Scope Mode Fishfinder range Adjusting the bottom lock range/positionEnabling Bottom Lock Range Changing the fishfinder depth range Using fishfinder range shift Fishfinder presentation options Adjusting the fishfinder gain manuallySonar gain Manual Adjusting the fishfinder color threshold Adjusting the fishfinder color gainFishfinder color gain Fishfinder color threshold Adjusting the fishfinder time varied gain Fishfinder powerAdjusting the fishfinder power Depth and distance with the fishfinder Measuring depth and distance with VRM Fishfinder scrolling Dual / Single frequency fishfinder Placing a Waypoint on the Fishfinder Display Fishfinder waypointsEnabling dual frequency transducers Setting up fishfinder alarms Fishfinder alarmsFishfinder alarms setup Opening the fishfinder setup menu Setting up your fishfinderFishfinder setup menu options Sonar frequency Fishfinder preset configuration Transducer and DSM settings Menu Item Description Options Ping Rate Limit per Ping EnableSecond Fishfinder Transducer Calibration Menu Item Description Options Depth Offset Temperature OffsetWaterline Speed Offset Using the engine monitor Displaying the engine monitor application Engine monitor overview Changing what the engine monitor displays Setting up the engine monitor application Silencing engine monitor alarms Using the data application List of pre-configured data panels Pre-configured data in the data applicationData application overview Way Fish Sail Naviga Point Route Ing Data Tion panel Panel XTE Selecting a pre-configured data panel Selecting customized data in the data application Customizing the data applicationRenaming data panels in the data application Changing the size of data panels in the data application Using the weather application North America only Weather application overview Weather application setupAdding the weather application to a page set Weather application display overview Weather symbolsSelecting weather graphics Surface pressure symbols Storm tracks symbolsSurface observation station symbols Wave information symbols Wind speed symbols Canadian radar precipitation color codes NOWRad precipitation color codesColor code Precipitation type Intensity Color code Intensity in mm per hour Weather reports Weather map navigationRe-centering your vessel on the weather map Displaying weather reports Storm trackingChanging the position of forecasts on the weather map Running a weather animation Animated weather graphics 188 Series Widescreen user reference Using Sirius satellite radio North America only Displaying the Sirius radio application Sirius radio overview Sirius radio basic operations Tuning to a Sirius radio channelBrowsing Sirius radio channels Scanning Sirius radio channels Assigning Sirius radio channel presets Sirius radio presetsDeleting a Sirius radio channel from a preset Moving a Sirius radio channel to another preset Favorite Sirius radio song alerts Setting up Sirius radio favorite alerts Changing the Sirius radio password Setting up Sirius radio parental lockingAccessing a blocked Sirius radio channel Sirius radio parental locking Using Navtex Navtex overview Navtex setupIncoming Navtex Message Alerts Navtex Message Alert Categories Viewing a Navtex message Viewing and Managing Navtex MessagesDisplaying the Navtex message list Sorting the Navtex message list 198 Series Widescreen user reference Using video Video application overview Changing the video aspect ratio Displaying the video application Adjusting the video picture DSC VHF radio integration Using a DSC VHF radio with your display Enabling DSC VHF radio integration 206 Series Widescreen user reference Customizing your display Selecting applications for a page set Customizing page setsRenaming a page set Moving the databar Customizing the databarResizing the databar Changing the data displayed in the databar 210 Series Widescreen user reference Maintaining your display Routine equipment checks Servicing and safety Cleaning the display case Cleaning Resetting your display Cleaning the display screenPerforming a settings reset Settings and data reset Performing a settings and data reset 216 Series Widescreen user reference Technical support Sirius support Raymarine technical supportViewing product information Navionics website Navionics support 220 Series Widescreen user reference