Furuno 1942 MARK-2 manual How radar works

Page 12

A

Targets

DA

Heading marker

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

D

B

CB

Own ship (radar)

C

Own ship in center

(A) Bird's eye view of situation

(B) Radar picture of (A)

Figure 1-1 How radar works

1-2

Image 12

Contents Marine Radar Page Stay away from transmitting scanner Radiator Distance toWorst case 1.70 m Nil Worst case 1.20 mDo not open the equipment Do not disassemble or modify the equipmentUse the proper fuse Keep heater away from equipmentCompliance with R&TTE Directive 1999/5/EC Features ForewordTable of Contents Menu Tree Menu KEYTable of Contents by INDICATION, Marker System Configuration Scanner UnitDisplay Unit What is Radar? Principle of OperationHow Radar Determines Range How Radar Determines BearingHow radar works Basic Operation Control DescriptionEconomy mode Turning the Radar On/OffStand-by TransmittingAdjusting Picture Brilliance Adjusting Receiver SensitivityAdjusting the A/C SEA Control Reducing sea clutter Selecting the RangeAdjusting the A/C Rain Control Reducing rain clutter Adjusting the A/C SEA controlTip for adjusting the A/C SEA Adjusting A/C RainMeasuring the Range Erasing the Heading Marker, North MarkerMeasuring range by range rings Measuring range by cursorUsing the Offset EBL Measuring the BearingCancelling offcentered picture Offcentering the PictureMeasuring range and bearing between two targets Cancelling zoom ZoomSelecting the Presentation Mode Menu OperationBasic Menu Operation Head upEcho Trail Magnifying Long Range Echoes echo stretchCancelling echo trail Suppressing Radar InterferenceFixed time trail Continuous trailGuard Alarm Setting a guard zoneSelecting Pulsewidth Selection of guard zone typeSilencing the audible alarm Cancelling the guard zone and guard alarmWatchman How watchman worksCancelling watchman Displaying Navigation DataTurning on watchman To turn navigation data on or offOther Menu Description Other Menu DescriptionAdjusting Brilliance of Markers Function ControlsSuppressing Noise Outputting Target PositionFalse Echoes Multiple EchoesSide-lobe Echoes Indirect Echoes Blind and Shadow SectorsSart Search and Rescue Transponder Showing Sart marks on the radar displaySummary to detect Sart response General remarks on receiving SartThis page is intentionally left blank Maintenance & Troubleshooting Preventive MaintenanceReplacing the Fuse Troubleshooting But ThenSelf Test This page is intentionally left blank Operation of ARP-10 Option Display accuracy is affected by the followingPrincipal specifications GeneralARP-10 Menu Operation Keys used for auto plotterDeactivating the auto plotter ARP MenuSetting auto acquisition area Acquiring TargetsManual acquisition Automatic acquisitionDisplaying Target Data Terminating Tracking of TargetsIndividual targets All targetsMode and Length of Vectors True or relative vector vector modeCPA/TCPA alarm Past Position DisplayLost target alarm This page is intentionally left blank Specifications of Marine Radar Display Unit Dimensions and Mass Index IN-1Page Page Page 00080835401