Furuno FR-8111, FR-8251 manual Index Lines, Off-centering the Picture

Page 31

1.18 Index Lines

The index lines are useful for maintaining a con- stant distance between own ship and a coastline or partner ship. They can be turned on/off by the INDEX LINE key. Each pressing of the key turns on the index lines (linked with No.2 EBL and No.2 VRM), anchors the index lines, or turns off the index lines.

No.2 EBL

Index lines

Figure 1-16 Index lines

Rotating the index lines

Activate the No.2 EBL and operate the EBL con- trol.

Adjusting index lines intervals

Activate the No.2 VRM and operate the VRM control.

Selecting number of index lines

The number of index lines can be selected to two or six on the INITIAL menu.

1)Press the MENU key.

2)Select the INITIAL menu and press the EN- TER/SELECT key.

3)Select INDEX and press the ENTER/SELECT key.

4)Select 2PCS (or 6PCS).

5)Press the ENTER/SELECT key.

6)Press the MENU key.

1.19 Off-centering the Picture

Your vessel’s position can be off-centered up to 75% of the range in use to view the situation around your vessel without changing the range or size of targets.

1)Operate the trackball to set cursor where de- sired.

2)Press the SHIFT ZOOM key. SHIFT appears at the top left corner of the display.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cursor

 

 

 

Cursor

1 Set cursor

 

2 Press SHIFT ZOOM

where desired.

 

key to shift display.

Figure 1-17 Off-centering the picture

Note: The display cannot be off-centered on the 96 nm range. In True Motion, the SHIFT ZOOM key resets the OS position to a point of 50% ra- dius opposite to the extension of the heading marker passing through the display center.

Canceling off-centered picture

Press the SHIFT ZOOM key again.

1 – 15

Image 31
Contents Marine Radar 00080735211 Safety Information Do not diassemble or modify the equipment Iii Radio Frequency Radation HazardUse the correct fuse Compliance with R&TTE Directive 1999/5/EC Table of Contents Maintenance Foreword Features Word to FR-8051/8111/8251 OwnersVii Configuration of FR-8051/8111/8251 Antenna Unit SpecificationsTransceiver Module Others Power Supply and Power ConsumptionDisplay Unit Environmental ConditionsStandard Set Equipment ListsXii Spare Parts Optional EquipmentXiii Xiv Categorization by SpecificationControl Description Operation25 NM Display IndicationsDisplay indications lower part Selecting Range Turning the Radar On/OffTransmitting, Stand-by Selecting presentation mode Presentation ModeDescription Basic menu operation Menu OverviewChanging pages on the Initial menu MK Erase erase all fixed marks Menu treeInitial Tune SET AUTO, Manu SPD Mode MAN, LOG, NAV Selecting tuning mode Tuning the ReceiverAdjusting Sensitivity Adjusting Picture BrillianceAutomatic anti-clutter control Adjusting Brilliance of Control Panel and MarkersAdjusting Range Ring Brilliance Suppressing Sea ClutterMeasuring range by the range rings Suppressing Rain ClutterHeading and North Markers Measuring the RangeMeasuring Bearing Collision Assessment by Measuring Range Offset EBL Canceling the cursor offsetOff-centering the Picture Index LinesInscribing Marks on the Display ZoomFunction key Turning on a function Own Ship SpeedAutomatic speed input Manual speed input Ship’s GraphicInterference Rejector Echo TrailsTrail reference Canceling echo trailStarting echo trail Trail timeTrail brilliance Electronic Plotting E-plotPlotting a target Vector time Canceling target plottingTarget data True or relative vectorActivating the guard zones Setting a Guard Alarm ZoneSetting a guard zone Selecting guard zone typeHow to turn on echo averaging Watch AlarmSilencing the aural alarm Canceling the guard zone and guard alarm26 Echo average Suppressing Second-Trace EchoesSelecting Pulselength Presetting pulselengthEcho Stretch Noise RejectionOutputting Cursor Position TLL data Waypoint DisplaySelecting pulselength set to use Selecting Unit of Range Measurement, Bearing Reference Alarm Output Signal On/OffSector Blanking This page is intentionally left blank Radar Observation Range ResolutionRadar Picture, Target Properties and Radar Pulse Multiple echoes Bearing ResolutionFalse Echoes Indirect echoesBlind and shadow sectors Minimum and Maximum RangesSide-lobe echoes Minimum rangeLocating a Ship or Survival Craft in Distress by Sart Gain This page is intentionally left blank When Working on the Antenna Unit MaintenancePeriodic Maintenance Schedule Simple Troubleshooting TroubleshootingServiceman qualification Advanced-level TroubleshootingProblem Check point and probable Remedy Cause Problem Check point and probable Remedy Cause Diagnostic test, test pattern Diagnostic TestThis page is intentionally left blank Antenna Unit Location of PartsModulator Trigger RF Transceiver UnitRF transceiver unit FR-8051/8111 Display unit, top view Display Unit common to all modelsDisplay unit, right side view This page is intentionally left blank Operating a performance monitor Performance MonitorVideo Plotter RP-15 Auto Plotter ARP-15Fluxgate Heading Sensor C-2000 Page

FR-8251, FR-8111 specifications

Furuno has long been a leader in marine electronics, and its FR-8251 and FR-8111 radar systems continue that tradition. Both are advanced systems designed specifically for professional mariners who demand high performance, reliability, and technological sophistication in their navigational tools.

The Furuno FR-8251 is a powerful radar system that boasts a range of features tailored for commercial vessels. With a 25 kW transmitter, the FR-8251 delivers exceptional performance, providing a clearer and more detailed image of the maritime environment. It is equipped with advanced signal processing technology, including the Doppler processing feature, which allows for the detection of moving targets. This is highly beneficial for collision avoidance, as it provides accurate information regarding the speed and direction of other vessels.

Another noteworthy feature of the FR-8251 is its large, high-resolution display that enhances visibility and ease of use, even in challenging weather conditions. The user interface is straightforward, allowing for quick adjustments and easy navigation through the various settings. It supports a variety of display formats and allows for customization, enabling operators to tailor the information presented according to their specific needs.

On the other hand, the Furuno FR-8111 is equally impressive and designed as a more compact solution without sacrificing performance. This model comes with a 12 kW output and is specifically crafted for smaller vessels, yet it still delivers high-quality radar coverage. Utilizing Furuno’s renowned Automatic Target Tracker (ATT) technology, the FR-8111 enables mariners to efficiently track multiple targets, significantly enhancing situational awareness.

Additionally, both the FR-8251 and FR-8111 come with integrated ARPA (Automatic Radar Plotting Aid), providing users with sophisticated tools for navigation and collision avoidance. The presence of multiple target tracking empowers operators to make informed decisions, optimizing safety at sea.

Furuno’s commitment to reliability and durability is evident in both models, which are designed to withstand the harsh marine environment. Their robust build quality ensures longevity, while their advanced technologies offer peace of mind.

Both the Furuno FR-8251 and FR-8111 are excellent choices for professional mariners seeking cutting-edge radar systems. With their impressive performance, user-friendly interfaces, and advanced technologies, these radar systems set the standard in marine navigation, providing essential support for safe and efficient voyages.