Furuno FR-1710 True or relative vector, vector time, Target data, Terminating target plotting

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True or relative vector, vector time

Vectors can be displayed relative to own ship’s heading (Relative) or with reference to the North (True). This feature is available in all presentation modes (compass must be working correctly). The current vector mode is indicated at the upper-right corner of the screen.

Vector time (or the length of vectors) can be set to 30 seconds, 1, 3, 6, 15 or 30 minutes and the selected vector time is indicated at the upper-right corner of the screen.

1.Press the [MENU] key followed by the [7] key twice to select PLOT.

 

 

PLOT MENU 1

 

 

 

 

 

 

 

 

 

 

 

1.

MARK DISP

 

OFF

ON

 

 

 

 

2.

ERASE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3.

VEC REF

 

REL

TRUE

 

 

 

 

 

 

 

 

 

 

 

4.

VEC TIME

 

30S

1M

3M

6M

 

 

 

 

15M

30M

 

 

 

 

 

 

 

 

5.

CPA SET

 

OFF

0.5NM 1NM 1.5NM

 

 

 

2NM

3NM

4NM

 

 

 

 

5NM

6NM

 

 

 

 

 

 

 

 

 

 

 

6.

TCPA SET

 

30S

1M

2M

3M

 

 

 

 

4M

5M

6M

12M

15M

 

 

 

 

 

 

 

 

7.

TRACK

 

OFF

ON

 

 

 

 

 

 

 

 

 

 

 

8.

AUDIO ALARM

 

OFF

ON

 

 

 

9.

INTVAL*

 

 

1M

2M

3M

6M

 

30S

0.

*

 

 

 

 

 

 

 

* Requires ATA Board ARP-17.

Figure 1-26 PLOT menu

2.Press the [3] key to select REL or TRUE from the VECT REF field as appropriate, and then press the [ENTER/SELECT] key.

3.Press the [4] to select appropriate vector time from the VEC TIME field, and then press the [ENTER/SELECT] key.

4.Press the [MENU] key to close the menu.

The vector tip shows an estimated position of the target after the selected vector time elapses. It can be valuable to extend the vec- tor length to evaluate the risk of collision with any target.

Target data

The radar calculates motion trends (range, bearing, course, speed, CPA and TCPA) of all plotted targets.

In the head-up and head-up true bearing modes, target bearing, course and speed shown in the upper-right target data field be- come true (T) relative to north. The target data field always displays true bearing, true course and speed over the ground.

Reading the target data

Place the cursor on a plotted target and press the [ENTER/SELECT] key. Then, the follow- ing target data is displayed at the right side of the CRT.

RNG/BRG (Range/Bearing): Range and bearing from own ship to last-plotted target with suffix “T” (True).

CSE/SPD (Course/Speed): Course and speed are displayed for the last-plotted tar- get with suffix “T” (True).

CPA/TCPA: CPA (Closest Point of Approach) is the closest range the target will approach to own ship. TCPA is the time to CPA. Both CPA and TCPA are automatically calculated. TCPA is counted up to 99.59 min and be- yond that it is indicated as TCPA > *99.59 MIN.

Terminating target plotting

With the EPA you can plot up to 10 targets. You may wish to terminate plotting of less important targets to newly plot other threat- ening targets.

With Trackball: Place the cursor (+) on a target which you do not want to be tracked any longer by operating the trackball and press the [CANCEL/CLEAR] key.

All Targets: To terminate plotting of all tar- gets at once:

1.Press the [MENU] key followed by the [7] key twice.

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Contents Marine Radar First Edition NOV Do not operate the equipment with wet hands Keep heater away from equipmentDo not disassemble or modify the equipment Do not open the equipmentUse the proper fuse Table of Contents SP-1 Declaration of Conformity FR-1760DSIntroduction FeaturesWord to the Owner of This Furuno Radar System Configuration FR-1760DSFR-1710/1725 Antenna Unit Display UnitMenu Tree ViiiPlot Menu Mark Disp OFF Erase VEC REF REL True VEC Time Curs RNG INT REJ OFF Stretch Enhance Contrast Auto Xii Operational Overview Turning on the PowerTransmitter on Control Description Control descriptionCRT Brilliance Tuning the ReceiverControl Panel Backlighting Degaussing the Screen Initializing the Compass ReadoutOn-screen Legends and Markers On-screen legends and markersSelecting presentation mode Presentation ModesCourse-up Mode Selecting the Range Scale Screen showsAutomatic speed input Entering Own Ship’s SpeedManual speed input Pulselength, Echo Stretch 10 Echo stretchS1P Automatic adjustment by the A/C Auto control Adjusting the SensitivityManual adjustment by the A/C SEA control Suppressing Sea ClutterSuppressing Precipitation Clutter Interference RejectorMeasuring range by the fixed range rings Measuring the RangeMeasuring Bearing Measuring range by the variable range marker VRMCollision Assessment by the Offset EBL Measuring Range and Bearing Between Two TargetsSetting a Target Alarm Zone 18 Measuring range and bearing Between two targetsInward and outward alarms Acknowledging alarmDeactivating target alarm zone Off-centering shiftEcho Averaging 23 Echo SIG menuElectronic Plotting Aid EPA Plotting a targetTerminating target plotting True or relative vector, vector timeTarget data Reading the target dataLost target alarm Setting CPA/TCPA alarm rangesSilencing CPA/TCPA audible alarm CPA/TCPA AlarmPast plot points Target Trails Echo TrailsTrue or relative trails Restoring trails Trail gradationSelecting trail time Displaying, erasing target trailsThin trails Resetting target trailsTrail brilliance Trail afterglowParallel Index Lines Origin MarkZoom MarkersUser Keys F1, F2, F3 Presetting the user keysPresetting the function keys Function KeysFunc key objectives 42 FUNC1 menuAdjusting Brilliance of Screen Data Suppressing Second-trace EchoesNoise Rejector Time AlarmEnhanced Video Degaussing Interval Navigation DataClutter Sweep Video ContrastOutputting Target Position Selecting Bearing Scale Format Background ColorSelecting Range Scales Available color combinationsA/D curve settings 46 A/D Converter Curve SettingEnlarging Close-in Targets Alarms AlarmsAlarms con’t Peformance MonitorGeneral Radar resolutionRadar Observation Minimum and maximum rangesRange measurement False EchoesBearing accuracy Multiple echoesVirtual image Sart Search and Rescue TransponderShadow sectors General remarks on receiving Sart Sart range errorsShowing Sart marks on the radar display Radar bandwidthGain Racon Radar BeaconRadar side lobes SEA controlMaintenance schedule MAINTENANCE, TroubleshootingPeriodic Maintenance Schedule On nextLife Expectancy of Major Parts Maintenance schedule con’tLife expectancy of major parts Battery replacement information Fuse Replacement Simple TroubleshootingReplacement of Batteries Easy troubleshootingServiceman qualification Advanced-level TroubleshootingService call Advanced-level troubleshooting Problem Check point Remedy Probable causeAdvanced-level troubleshooting con’t Diagnostic Test Sequence for diagnostic testTest results screen Display circuit test Parts Location Left side viewDisplay unit, top view FR-1760DS Scanner Unit Scanner unit, left side viewFR-1760DS Scanner Unit con’t Scanner unit, right side view, RF section removedFR-1760DS Power Supply Unit FR-1760DS Power supply unitFR-1710/1725 Scanner Unit RF module Upper partModule Lower part Specifications of Marine Radar Radar Display Dimension and Mass Coating Color Index RaconIndex-2