(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 ships 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 46
Image 46
Furuno 1942 MARK-2 manual Display Unit