Furuno 1942, 1932 manual Model 1832 Specifications

MODEL 1832 SPECIFICATIONS

ANTENNA UNIT

1.	Radiator:			Printed array
2.	Radiator length:			60 cm
3.	Horizontal beamwidth:			3.9°
4.	Vertical beamwidth:			20°
5.	Sidelobe:
	Within ±	20°	of mainlobe; less than -18 dB
	Outside ±	20°	of mainlobe; less than -23 dB
6.	Polarization:			Horizontal

7.Antenna rotation speed: 24 rpm

8.Wind resistance:

Relative wind speed 100 knots (51.5 m/s)

TRANSCEIVER MODULE (contained in radome)

1. Transmitting tube:		E3571 or
		MAF1421B
2.	Frequency:
	9410 MHz ± 30 MHz
3.	Peak output power:	4 kW nominal

4.Pulselength & pulse repetition rate:

0.08∝ s, 2100 Hz (0.125, 0.25, 0.5, 0.75, 1.5)

0.3∝ s, 1200 Hz (1.5, 2, 3)

	0.8 ∝ s, 600Hz (3, 4, 6, 8, 12, 16, 24, 36)
5.	Warmup time:	1:30
6.	Modulator:	FET switching
		method
7.	I.F.:	60 MHz
8.	Tuning:	3Automatic or
		manual
9.	Receiver front end:

MIC (Microwave IC)

10. Bandwidth:

Tx pulselength 0.3 ∝ s and 0.08 ∝ s: 25 MHz

Tx pulselength 0.8 ∝ s: 3 MHz

11. Duplexer:Circulator with diode limiter

DISPLAY UNIT

1.	Indication system:	PPI raster scan
2.	Display:	10-inch rectangular
		monochrome CRT

3.Range scale (nm):

Range, Range interval and no. of Rings: 0.125 (0.0625, 2), 0.25 (0.125, 4), 0.75 (0.25, 3), 1 (0.25, 4), 1.5 (0.5, 3), 2 (0.5, 4), 3 (1, 3), 4 (1, 4), 6 (2, 3), 8 (2, 4), 12 (3, 4),

	16 (4, 4), 24 (6, 4), 36 (12, 3)
4.	Bearing resolution:	4°
5.	Bearing accuracy:	Within 1°
6.	Range discrimination:	Better than 20 m

7.Range ring accuracy:

0.9% or range in use or 8 m, whichever is larger

8.Minimum range: Better than 25 m

9.Markers:

Heading line, Bearing scale, Range ring, VRM 1/2, EBL 1/2, Tuning indicator, Cursor, Alarm zone, North mark (heading sensor input required)

10. Alphanumeric indication:

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), Range to cursor, Bearing to cursor, Echo trailing (TRAIL), Trail time, Trail elapsed time, Navigation data (naviga- tion input required), heading (HDG, heading sensor input required)

11. Vibration:

Vibration Total amplitude
5 to 12.5 Hz	±	1.6 mm
12 to 25 Hz	±	0.35 mm
25 to 50 Hz	±	0.10 mm
12. Temperature:
Antenna unit;	-25 ° C to + 70 ° C
Display unit;	-15 ° C to + 55 ° C

13. Humidity:

Relative humidity 93% or less at + 40° C

14. Waterproofing:Antenna unit; IPX6 Display unit; IPX5

15. Power supply & power consumption:

12-32 VDC (10.2 V to 41.6 VDC)

50W

16. Protection feature:

Protection against reverse polarity, overvolt- age, overcurrent, and internal fault

17. Compass safe distance:

	Standard compass	Steering compass
Display unit	0.75 m	0.6 m
Antenna unit	0.9 m	0.7 m

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