Furuno 1942 MARK-2 manual Display Unit

Page 46

(8)

Bandwidth

 

Tx pulselength 0.08 μs and 0.3 μs: 25 MHz

 

 

 

 

 

 

 

 

 

 

 

Tx pulselength 0.8 μs: 3 MHz

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(9)

Duplexer

 

Circulator with diode limiter

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4. DISPLAY UNIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(1)

Indication System

 

PPI Daylight display, raster scan, 8 tones in monochrome

 

 

 

(2)

Picture Tube

 

10 inch rectangular monochrome CRT

 

 

 

 

 

 

 

 

 

 

 

 

effective display area more than 150 mm

 

 

 

 

 

 

 

 

 

(3)

Range, Range Interval, Number of Rings

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Range (NM)

0.125

0.25

0.5

0.75

1

1.5

2

 

3

 

4

 

6

 

8

12

16

24

36

48

64

 

Ring Interval (NM)

0.0625

0.125

0.125

0.25

0.25

0.5

0.5

 

1

 

1

 

2

 

2

3

4

 

6

12

12

 

16

 

Number of Rings

2

2

4

3

4

3

4

 

3

 

4

 

3

 

4

4

4

 

4

3

4

 

4

Maximum Range;

 

MODEL 1932 M2: 48 nm, MODEL 1942 M2: 64 nm

 

 

 

 

 

(4)

Markers

 

Heading Line, Bearing Scale, Range Rings,

 

 

 

 

 

 

 

 

 

 

 

Variable Range Marker (VRM1, VRM2),

 

 

 

 

 

 

 

 

 

 

 

Electronic Bearing Line (EBL1, EBL2),

 

 

 

 

 

 

 

 

 

 

 

 

Tuning Bar, Cursor, Parallel Cursor,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Alarm Zone, Waypoint Mark (navigation input required),

 

 

 

 

 

 

North Mark (heading sensor input required)

 

 

 

 

 

 

 

 

(5)

Alphanumeric Indications

Range, Range Ring Interval, Pulselength (SP, MP, LP),

 

 

 

 

 

 

 

Display Mode (HU,CU,NU,TM),

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Interference Rejection (IR1,IR2,IR3),

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VRM (1, 2), EBL (1, 2), Automatic A/C SEA (A/C AUTO),

 

 

 

 

Stand-by (ST-BY), Radar Alarm (G(IN), G(OUT), G(ACKN)),

 

 

 

 

Echo Stretch (ES1, ES2), Cursor Range, Bearing or L/L Position,

 

 

 

Echo Tailing (TRAIL), Trailing Time, Trailing Elapsed Time,

 

 

 

 

Navigation Data (navigation input required),

 

 

 

 

 

 

 

 

 

 

 

Heading (HDC, heading sensor input required)

 

 

 

 

 

 

 

(6)

Input Data

 

NMEA0183 (Ver.1.5/2.0), current loop

 

 

 

 

 

 

 

 

 

 

Own ship’s position:

GGA>RMC>RMA>GLL (accept GLL in NMEA Version 1.5 only)

 

Speed:

 

RMC>RMA>VTG>VHW

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Heading (True):

 

HDT>HDG*1>HDM*1>VHW>VHW*1

 

 

 

 

 

 

 

 

 

 

Heading (Magnetic):

HDM>HDG*1>HDT*1>VHW>VHW*1

 

 

 

 

 

 

 

 

 

 

Course (True):

 

RMC>RMA>VTG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Course (Magnetic):

VTG>RMC>RMA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Waypoint (Range, Bearing): RMB>BWC>BWR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Loran time difference:

RMA>GLC>GTD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Water depth:

 

DPT>DBT>DBK>DBS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SP - 2

Page 45 Page 47
Image 46
Page 45 Page 47
Contents Marine Radar Page Worst case 1.70 m Stay away from transmitting scannerRadiator Distance to Nil Worst case 1.20 mUse the proper fuse Do not open the equipmentDo not disassemble or modify the equipment 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 Scanner Unit System ConfigurationDisplay Unit How Radar Determines Range What is Radar?Principle of Operation How Radar Determines BearingHow radar works Basic Operation Control DescriptionStand-by Economy modeTurning the Radar On/Off TransmittingAdjusting the A/C SEA Control Reducing sea clutter Adjusting Picture BrillianceAdjusting Receiver Sensitivity Selecting the RangeTip for adjusting the A/C SEA Adjusting the A/C Rain Control Reducing rain clutterAdjusting the A/C SEA control Adjusting A/C RainMeasuring range by range rings Measuring the RangeErasing the Heading Marker, North Marker Measuring range by cursorUsing the Offset EBL Measuring the BearingOffcentering the Picture Cancelling offcentered pictureMeasuring range and bearing between two targets Cancelling zoom ZoomBasic Menu Operation Selecting the Presentation ModeMenu Operation Head upEcho Trail Magnifying Long Range Echoes echo stretchFixed time trail Cancelling echo trailSuppressing Radar Interference Continuous trailSelecting Pulsewidth Guard AlarmSetting a guard zone Selection of guard zone typeWatchman Silencing the audible alarmCancelling the guard zone and guard alarm How watchman worksTurning on watchman Cancelling watchmanDisplaying Navigation Data To turn navigation data on or offOther Menu Description Other Menu DescriptionSuppressing Noise Adjusting Brilliance of MarkersFunction Controls Outputting Target PositionMultiple Echoes False EchoesSide-lobe Echoes Indirect Echoes Blind and Shadow SectorsSummary to detect Sart response Sart Search and Rescue TransponderShowing Sart marks on the radar display General remarks on receiving SartThis page is intentionally left blank Preventive Maintenance Maintenance & TroubleshootingReplacing the Fuse Troubleshooting But ThenSelf Test This page is intentionally left blank Operation of ARP-10 Option Display accuracy is affected by the followingARP-10 Menu Operation Principal specificationsGeneral Keys used for auto plotterDeactivating the auto plotter ARP MenuManual acquisition Setting auto acquisition areaAcquiring Targets Automatic acquisitionIndividual targets Displaying Target DataTerminating Tracking of Targets All targetsCPA/TCPA alarm Mode and Length of VectorsTrue or relative vector vector mode 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
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