Measuring range by VRM, EBL/VRM soft keys

2. RADAR OPERATION

2.10.3Measuring range by VRM

1. Press the [EBL/VRM] key to display the EBL/VRM soft keys.

12/LP 3nm

H-UP

	319. 9° M	EBL
	319. 9° M	VRM
		VRM

EBL1

VRM1

OFFSET

EBL2

VRM2

+ 359.9 ˚R 11.70nm

EBL/VRM soft keys

2.Press the VRM1 ON (dotted ring VRM) or VRM2 ON (dashed ring VRM) soft key to select the desired VRM. The selected VRM’s indication, at the bottom of the screen, is highlighted.

3.Rotate the [ENTER] knob the place the VRM on the inside edge of a radar target. Read the VRM indication to find range to the target.

12/LP 3nm

H-UP

VRM2 (Dashed line)

VRM1 (Dotted line)

	EBL1	EBL2
VRM1 range	---.-°R	---.-°R
	VRM1	VRM2
	3.123nm	9.343nm

319. 9° M	EBL
	VRM

EBL1

VRM1

OFFSET

EBL2

VRM2

+ 359.9 ˚R 11.70nm

Active VRM is highlighted.

VRM2 range

4.You may hide the EBL/VRM soft keys by pressing the [EBL/VRM] key. How to measure range with the VRM

2-13

Page 49

Image 49

Furuno 1823C manual Measuring range by VRM, EBL/VRM soft keys

Contents

Back 00080919804 Safety Instructions Compliance with R&TTE Directive 1999/5/EC Table of Contents Page Plotter Operation Video Sounder Operation Customizing Your Unit Vii Data Transfer Viii Foreword Model Output Range Radar Features NavNet system Model 1823C/1833C/1933C/1943C/1953C NavNet system Model 1823C/1833C/1933C/1943C/1953C Single-unit NavNet system GD-1900C XiiSingle-unit NavNet system GD-1900C Two-unit NavNet system XiiiTwo-unit NavNet system Three-or-more-unit NavNet system Xiv What is WAAS? Operational Overview Display unit controls Operating ControlsOverview of display unit controls Control unit Display unit Soft keysRadar and plotter displays Key Function Remote controller Chart card and card remover Inserting a Chart CardDisplay unit Memory card interface unit Option Startup sequence Turning the Unit On/Off Display Brilliance, Panel Brilliance, Hue Brilliance adjustment soft keysDisplay brilliance, panel brilliance Display brilliance and panel brilliance windows Hue window 2 HueNight Day Twilight Display modes Selecting a DisplayDisplay screens Display screen selection window Selecting a displayRadar combination screen selection window To adjust Sounder Plotter Switching control in combination and overlay screens Select source menu Selecting image sourceRadar source and sounder source windows Cursor, cursor data Trackball, Cursor MOB concept Entering the MOB Mark, Setting MOB as DestinationMOB mark messages Showing, hiding data boxes with soft key Data BoxesData boxes Temporarily erasing a data box Rearranging data boxes Function Keys Function Default Setting, Key LabelExecuting a function Function keys Simulation Display Simulation setup menu NavNet display unit-generated echoes RadarPlotter Sounder Radar display Radar Display Adjusting the Gain TuningTuning window Transmitting, Stand-by Gain sensitivity window Gain adjustment soft keys SEA setting window Adjusting the A/C SEAReducing Sea Clutter How the A/C SEA works Rain setting window Adjusting the A/C RainReducing Precipitation Clutter Range scales nm, sm Range ScaleRange scales km Pulselength Signal process soft keys Selecting a presentation mode Presentation ModeRadar display soft keys Course-up presentation mode Head-up presentation modeDescription of presentation modes Head-up True motion presentation mode North-up presentation modeNorth-up True motion Measuring range by range rings Measuring the Range Measuring range by cursor How to measure range to a target with the cursor EBL/VRM soft keys Measuring range by VRM Measuring the Bearing Erasing an EBL, EBL indication How to measure bearing with the EBL Reducing Noise Interference Erasing the Heading Line, North Marker Radar interference Rejecting Radar Interference Zooming in on radar targets ZoomZooming in on ARP, TTM targets Zoom Manual shift Shifting the PictureTarget no. selection window Shifting the picture manually Auto ship speed setting window Setting automatic shift maximum speedAutomatic shift Automatic shift Predicting collision course Using the Offset EBLPredicting collision course with the offset EBL Measuring range and bearing between two targets Measuring range & bearing between two targets Trail time Echo TrailsSample echo trails Trail soft keys Trail gradation Starting echo trailsMultitone and monotone trails Trail mode window Echo trail modeTrail color Trail color window Types of echo stretch Echo Stretch Effect of echo averaging Echo Averaging Target soft keys Outputting TLL Data Setting a guard alarm zone Guard AlarmHow to set a guard alarm zone Cancelling the guard alarm When the alarm is violated… Watchman Setting watchman stand-by intervalHow watchman works Turning on/off watchman Second-trace echoes Suppressing Second-trace Echoes Waypoint marker Waypoint Marker 26 ARP, TTM Operation Usage precautions for ARP Activating/deactivating ARP, TTM ARP setup menuARP target info window Acquiring and tracking targets ARP ARP plot symbolsManual acquisition Automatic acquisition Automatic acquisition area Displaying target number ARP, TTMARP target number Terminating tracking of ARP targets Cancel all targets windowTerminating tracking of selected targets Terminating tracking of all targets What is a vector? Setting vector attributes ARPVector reference, vector time Past position displays Displaying past position ARPHistory interval window ARP target data 26.7 ARP, TTM target data CPA window 26.8 CPA/TCPA alarm ARP Canceling a lost target Lost target alarm ARPTcpa window Lost target mark General Interpreting the Radar DisplayMinimum and maximum ranges Bearing resolution Radar resolutionRange resolution Bearing accuracy Multiple echoes False echoesMultiple echoes Sidelobe echoes Virtual image Virtual imageShadow sectors Shadow sectors Sart Search and Rescue Transponder Appearance of Sart signal on the radar display General remarks on receiving Sart General procedure for detecting Sart response Racon Radar Beacon Appearance of racon signal on the radar displaySEA control Rain control Full-screen plotter display Plotter DisplaysFull-screen plotter display Nav data window Contents of nav data window Compass display Compass display Setting the range for the XTE monitor Reading the XTE cross-track error monitorXTE range setting window Highway display Highway display Nav data displays Nav data display North-up Plotter display, north-up mode Course-up Plotter display, auto course-up modeAuto course-up Plotter display, course-up mode, destination set Charts scales Chart ScaleShifting the Display Chart card overview Chart CardsChart icons and their meanings Sample chart Japan, showing indices Indices and chart enlargementWhen a chart cannot be displayed Chart symbols Furuno and NavCharts chartsData for aids to navigation Plotter display, showing port service display Port service iconsCurrent or tide data Current data display Cursor and data display MAP chartsObjects window Example of caution area window Lighthouse icon Icon dataObject windows Tide information Sample lighthouse data Tide window Map, port service displayDate window Displaying track Working with TrackOwn ship track Track control menu Target track Stopping, restarting plotting of own ship track Own ship’s track Changing track colorOwn ship track color window Track plotting method Track plotting method and interval for own ship trackInterval window Track plotting interval Track memory window Changing own ship track/mark distribution setting Erasing own ship track by area Erasing trackErase menu Erase track by color window Erasing own ship track by colorErasing all own ship track Erasing all target tracks Entering a mark, line Marks, LinesChanging mark attributes Marks & lines menu Marks shape window Selecting line typeLines style window Erasing an individual mark Erasing marks, linesErasing an individual line Erasing marks, lines by area Entering waypoints WaypointsEntering a waypoint at own ship position Entering a waypoint with the cursor Waypoint mark color selection window Waypoint mark shape selection window Entering a waypoint by range and bearing Entering a waypoint from the waypoint list Editing waypoint dataAlphanumeric and local waypoint lists Editing waypoint data from the waypoint list Plotter display Editing a waypoint from the plotter display Erasing a waypoint directly from the plotter display Erasing waypointsErasing a waypoint from the menu Erasing a waypoint from the waypoint list Chart details menu Changing waypoint mark size FURUNO, NavCharts Alphanumeric list Searching waypoints Creating routes RoutesEntering a route with existing waypoints Route menu Entering a route with the cursor New route entry screen Save route menu Creating voyage-based routesSave route window For manual entry of waypoints, do the following Displays for entry of time, distance intervalTo stop recording waypoints and save the route Connect route window Connecting routes Inserting a waypoint from the route list Inserting waypointsEdit route menu Waypoint list for editing a route local list Inserting a waypoint in an intermediate location on a route Inserting a waypoint from the plotter display Erasing routes Removing waypoints from a routeRemoving a waypoint from the route list Removing a waypoint from the plotter display Navigating to a quick point NavigationSelecting quick point entry method Go to method window Navigating to multiple quick points Navigating to waypointsSelecting a waypoint from the plotter display Selecting a waypoint from the waypoint list Selecting an external waypoint Navigating to ports, port services NavCharts/C-MAPQP window Sample filling station locations southern Italy Port services and sample port list Selecting the route to follow Following a routePlotter display, route selected as destination Navigating waypoints in reverse order Restarting navigation Example of when to restart navigationLog display Switching waypoints Setting speed for ETA calculationAutomatic waypoint switching methods Select speed for ETA window Canceling route navigation Audio alarm on/off AlarmsPlotter alarm menu Audio alarm window How the arrival alarm works Arrival alarmArrival alarm window How the anchor watch alarm works Anchor watch alarmAnchor watch alarm window Speed alarm XTE Cross-Track Error alarmHow the XTE alarm works XTE alarm window Proximity alarm window Proximity alarmProximity mark Trip alarm window Trip alarm Plotter alarm menu, Alarm information Plotter alarm messages and their meanings Alarm messagesMessage Meaning General setup menu, Resetting Trip Distance Underwater conditions and video sounder display Principle of Operation Sounder Displays Display mode windowSelecting a sounder display Single-frequency display Description of sounder displaysIndications on the single frequency display Selecting transmission frequency Dual-frequency display LF picture Dual-frequency displayHF picture Sounding area and transmission frequency Bottom-zoom display Marker-zoom display plus normal sounder displayBottom-zoom display plus normal sounder display Bottom-lock display plus normal sounder display Bottom-lock display Bottom discrimination display Bottom discrimination displayScope display display only Scope display Selecting screen split method in combination displays How to use the Split soft key example dual frequency display Automatic Sounder Operation How to enable automatic sounder operationHow the automatic sounder works Types of automatic sounder modes Adjusting the gain Selecting the manual modeManual Sounder Operation Selecting display range Gain window Shifting the rangeShift concept Measuring Depth, Time How to measure depth and time Types of interference Reducing InterferenceNoise limiter window Appearance of clutter Reducing Low Level NoiseClutter window Erasing Weak Echoes Signal level windowAppearance of weak echoes White Marker Color bar 16 color when white marker function is activeWhite marker window Advancement independent of ship’s speed Picture Advance SpeedPicture advance window Advancement synchronized with ship’s speed How the speed-dependent picture advance mode works Hue no. and background and echo colors Display ColorsHue No Echo Color Background Color Alarm audio window Sounder alarm menu Fish alarm Bottom alarmBottom alarm window Fish alarm window Fish alarm B/L window Fish alarm B/L Water temperature alarm window Water temperature alarm Alarm information window When an alarm setting is violated Sounder alarm messages and their meanings Water Temperature Graph Changing Pulse Repetition Rate Zero line Interpreting the Sounder DisplayBottom echo Zero line Surface noise/Aeration Fish school echoesFish school echoes Surface noise/aeration General setup menu General Setup On next Contents of general setup menu Radar display setup Radar SetupContents of general setup menu con’t from previous Radar display setup menu Con’t on next Contents of radar display setup menu Contents of radar display setup menu con’t from previous Radar range setup menu Radar range setupModel Maximum Range Function Key Default Function Function Key Label Function key setupRadar function key menu Radar function key options Menu Item Function Function Key Radar function keys Plotter setup menu Contents of plotter setup menu Plotter SetupNavigation options Plotter function key menu Function Default Function Function Key LabelPlotter function key options Plotter function keys Chart offset Chart SetupPlotter display, chart offset selected Chart details menu FURUNO, NavCharts FURUNO, NavCharts chart attributes Contents of chart details menu FURUNO, NavCharts Contour line menu FURUNO, NavCharts MAP chart attributesChart details menu C-MAP Cntour Line soft key Contents of chart details menu C-MAP Depth Info soft key Settings description Data box menu Data Boxes Setup Hot page setup menu Hot Page Setup HOT Hot page setup menu, Split X 3 screen, sub screen selection Contents of nav setup menu Navigator SetupNavigation data source GPS setup menu Contents of GPS setup menu GPS receiver setup Set equipped with GP-310B/320B Contents of GPS setup menu con’t from previous Status Contents of Waas Setup menu Waas Setup TD setup menu TD display setupDisplaying Loran C TDs Loran GRI & station pair window Decca chain and station pair window Displaying Decca TDs Nav data setup screen Nav Data Display SetupNav data setup window System setup Sounder SetupSounder system setup menu Sounder system setup menu description SM1-SM4, OFF Sounder system setup menu description con’t from previous Sensor setup menu Sensor setupSensor setup menu settings Default basic ranges Sounder range setup menuSounding range, zoom range, bottom lock range Zoom range and bottom-lock ranges Sounder function key menu Function Default Function Function KeySounder function key options Sounder function keys Formatting memory cards Memory Card OperationsSave data menu Saving data to a memory card Memory card messages Memory card messagesMessage Reason Remedy Load data menu Playing back data from a memory card Uploading, Downloading Data Setting communication software on the PCUploading or downloading data Upload and download menus Waypoint data format Baud rate windowWaypoint data format Characters available for comment Route comment data format Route data menuEnd of sentence Loading Waypoint Data from Yeoman Receive data menu Receiving Data Via Network EquipmentHost name window Marks & lines window Select sentence menu Outputting Data Through the Network Maintenance program Preventive MaintenanceCheck point Remedy Replacement of Fuse Replacement of BatteriesBattery on circuit board Batteries in remote controller Replacement the Synchro Belt 1823C only Replacement the MagnetronTrackball Maintenance Part Type Code No Retainer ring and ball MU3721 000-144-645 General troubleshooting Simple TroubleshootingRadar troubleshooting Radar Plotter Plotter troubleshooting Sounder Sounder troubleshooting Memory I/O test DiagnosticsMemory I/O Test menu Display unit test results Display unit testGPS sensor test Requires GPS Receiver GP-310B/320B GPS receiver test results ARP test results Network sounder test results Test pattern sequence Test pattern Screen for testing keyboard, remote controller Keyboard, remote controller test GPS status display GPS Status Display Memory clear menu Clearing MemoriesWindows for clearing memory Error messages Error MessagesError Message Meaning Remedy Menu key Menu Overview Appendix System Port 4800 Chart Setup Menu Plotter Setup Speed Speed for ETA, 0-99 kt, GPS or manual input Temperature Graph ON, OFF PRR Level 0-20, SPD Sensing PRR Radar Alarms Alarm keyPlotter Alarms Sounder Alarms Geodetic Chart List World Time Chart Icons Correct chart and suitable scale full chart reliabilityNorth marker. Points to North Icon Meaning Specifications of Marine Radar Model 1800C/1900C Series Transceiver Module Display Unit Plotter Function Environmental Condition Specifications of Video Plotter GD-1900C IPX5 This page is intentionally left blank Index-1 Index Index Index-2 Navigation Index-3 Index-4 Presentation mode Track Halt soft key Track Resume soft key Trackball Index-5Page