Furuno FR-8051 manual Turning the Radar On/Off, Selecting Range, Transmitting, Stand-by

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1.1 Turning the Radar On/Off

DANGER

Before turning on the radar, make sure no one is near the antenna unit. Serious injury or death can result if a rotating antenna strikes someone standing nearby.

1.3 Selecting Range

The range selected automatically determines the range ring interval, the number of range rings and pulse repetition rate, for optimal detection capa- bility in short to long ranges.

		Range
	Range	0.75NM
	Range ring	0.25
	interval	SP
	interval	Range
	Pulselength	Range
	Pulselength	rings

Turning on the radar

Press the POWER key. The control panel lights and a timer displays the time remaining for warm up of the magnetron, counting down from 3:00 to 0:00.

Turning off the radar

Press POWER and ST BY/TX keys together.

1.2 Transmitting, Stand-by

Transmitting

After the power is turned on and the magnetron has warmed up, ST-BY (Stand-By) appears at the screen center, indicating the radar is ready to transmit radar pulses. In stand-by the radar is available for use at any time.

Press the ST BY/TX key to transmit. The radar displays echoes in eight intensities according to echo strength.

Stand-by

When you won’t be using the radar for an ex- tended period, but you want to keep it in a state of readiness, place it in stand-by by pressing the ST BY/TX key. The display shows ST-BY.

Figure 1-4 Location of range, range ring interval and pulselength indications

Procedure

Press the RANGE key at + or –. The range, range ring interval and pulselength appear at the top left corner of the display.

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Contents Marine Radar First Edition NOV Safety Information Do not diassemble or modify the equipment Iii Radio Frequency Radation HazardUse the correct fuse 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 ConditionsName Type Qty Remarks Equipment ListsStandard Set XiiName Type Code No Remarks Optional EquipmentSpare Parts XiiiXiv Categorization by SpecificationFunction Type Control Description Operation25 NM Display IndicationsDisplay indications lower part Selecting Range Turning the Radar On/OffTransmitting, Stand-by Selecting presentation mode Presentation ModePresentation mode Description Representative display Description Presentation modeBasic 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 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 When Working on the Antenna Unit MaintenancePart Type Life expectancy Remarks Interval Check point Check and measures RemarksSimple Troubleshooting TroubleshootingProblem Remedy Serviceman qualification Advanced-level TroubleshootingProblem Check point and probable Remedy Cause Problem Check point and probable Remedy Cause Problem Check point and probable Remedy Cause Diagnostic test, test pattern Diagnostic TestAntenna 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 Display Meaning Transmitter normal Receiver normal Performance MonitorOperating a performance monitor Transmitter Receiver PerformanceVideo Plotter RP-15 Auto Plotter ARP-15Fluxgate Heading Sensor C-2000 Page