Furuno 1943, 1933, 1833 manual E3502S01D

2.3.3 Antenna Rotation 24 or 48 rpm nominal

2.3.4 Radiator Length 120 cm (XN12) 2.3.5 Horizontal Beamwidth 1.9°

2.3.6 Vertical Beamwidth 22°

2.3.7 Sidelobe Attenuation -24 dB or less (within ±20° of main-lobe)-30 dB or less (±20° of main-lobe or more)

3 TRANSCEIVER MODULE

3.1 Frequency and Modulation 9410 MHz ±30MHz (X band), P0N

3.2 Peak Output Power M1833/1933: 4 kW nominal, M1943: 6 kW nominal

3.3 ModulatorFET Switching Method

3.4 Intermediate Frequency 60 MHz

3.5 TuningAutomatic or manual

3.6 Receiver Front End MIC (Microwave IC)

3.7 BandwidthTx pulselength 0.08 μs and 0.3 μs: 25 MHz Tx pulselength 0.8 μs: 3 MHz

3.8 DuplexerCirculator with diode limiter

3.9 Warming up90 sec. approx.

4 DISPLAY UNIT

4.1 Picture Tube

M1833 /1933/1943 10-inch rectangular monochrome CRT

640(H) x 481(V) dots, Effective radar display dia.: 130 mm 4.2 Range, Range Ring Interval (RI), 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
RI (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
Rings	2	2	4	3	4	3	4	3	4	3	4	4	4	4	3	4	4

Maximum range: M1833: 36nm, M1933: 48nm, M1943: 64nm

4.3 MarkersHeading Line, Bearing Scale, Range Rings,

Variable Range Marker (VRM), Electronic Bearing Line (EBL), Alarm Zone, Waypoint Mark (navigation input required)

4.4Alphanumeric Indications Range, Range Ring Interval, Interference Rejection (IR), Variable Range Marker (VRM), Electronic Bearing Line (EBL), Stand-by (ST-BY) , Echo Averaging (EAV), TX Pulse width Guard Alarm (G(IN), G(OUT)), Echo Stretch (ES),

Range and Bearing to Cursor or Cursor Position, Echo Trailing (TRAIL), Trailing Time,

Data Box (Position, COG, SOG, STW etc. selectable on menu)

SP - 2 E3502S01D