Furuno FR-7062, FR-7252, FR-7112 manual How radar works

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A

Targets

DA

Heading marker

Range and bearing of a target, relative to own ship, are readable on the PPI.

D

B

CB

C

		Own ship	Own ship
		Own ship	Own ship
		(radar)	in center
(A) Bird's eye view of situation			(B) Radar picture of (A)

Figure 1-1 How radar works

1-2

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Contents Marine Radar 00080819803 Safety Instructions Use the proper fuse Compliance with R&TTE Directive 1999/5/EC Sart Search and Rescue Transponder IiiSummary to detect Sart response Features ForewordTable of Contents Menu Tree ViiiSystem Configuration This page is intentionally left blank How Radar Determines Bearing What is Radar?How Radar Determines Range Radar DisplayHow radar works Basic Operation Control DescriptionDisplay Indications and Markers Transmitting Turning the Radar On/OffStand-by Selecting the Range Adjusting Picture BrillianceAdjusting Receiver Sensitivity Adjusting A/C Rain Adjusting the A/C Rain Control Reducing rain clutterAdjusting the A/C SEA control Tip for adjusting the A/C SEASelecting the Presentation Mode Erasing the Heading Marker, North MarkerMeasuring the Range Measuring the BearingPredicting collision course Using the Offset EBLTips for measuring bearing Measuring range and bearing between two targetsZoom Cancelling zoomCancelling shifted picture Shifting off centering the PictureThis page is intentionally left blank Index Lines Adjusting the index lines intervalBasic Menu Operation Turning the index lines on/offSelecting Pulsewidth Suppressing Radar InterferenceDisplaying Navigation Data To turn navigation data on or offGuard Alarm Echo TrailCancelling the guard zone and alarm Setting a guard zoneSilencing the audible alarm PreparationHow watchman works Cancelling watchmanWatchman Turning on watchmanOther Menu Description DescriptionFunction Keys Tuning the ReceiverAdjusting Brilliance of Markers Suppressing Second-Trace EchoesMultiple Echoes Side-lobe EchoesIndirect Echoes Blind and Shadow SectorsMaintenance & Troubleshooting Troubleshooting Page This page is intentionally left blank ARP-10 Option Keys Used for Auto Plotter Principal specificationsGeneral ARP-10 Menu operationActivating the Auto Plotter ARP menuAutomatic Acquisition Setting auto acquisition areaManual Acquisition Deactivating the auto plotterIndividual targets Terminating Tracking of TargetsDisplaying Target Data All targetsVector length Mode and Length of VectorsTrue or relative vector Past position displaySpecifications of Marine Radar FR-7062/7112/7252Display Unit Environmental Condition Dimensions and Mass Index Page