How radar works | Furuno 1942 MARK-2 specification

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

Furuno 1942 MARK-2 manual How radar works

Contents

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