Furuno 1835 User Manual

FURUNO MODEL 1835 series
SP - 1 E3579S01E-M
SPECIFICATIONS OF MARINE RADAR
MODEL 1835 series
1 GENERAL
1.1 Range scale, pulselength (PL) and Pulse repetition rate (PRR)
MODEL 1835
MODEL 1935
Range scale
(NM)
PL (μs)
PRR
(Hz approx.)
Range scale
(NM)
PL (μs)
PRR
(Hz approx.)
0.0625 to 1.5 0.08 2100 0.0625 to 1.5 0.08 2100
1.5 to 3 0.3 1200 1.5 to 3 0.3 1200
3 to 36 0.8 600 3 to 48 0.8 600
MODEL 1945
Range scale
(NM)
PL (μs)
PRR
(Hz approx.)
0.0625 to 1.5 0.08 2100
1.5 to 3 0.3 1200
3 to 64 0.8 600
1.2 Range discrimination 25 m
1.3 Minimum range 25 m
1.4 Bearing resolution MODEL 1835: 4°, MODEL 1935: 2.4°, MODEL 1945: 1.9°
1.5 Bearing accuracy ±1°
1.6 Range ring accuracy 0.9％ of range in use or 8 m, whichever is greater
2 ANTENNA UNIT
2.1 Radiator type
MODEL 1835 Printed array
MODEL 1935/ MODEL 1945 Slotted waveguide array
2.2 Radiator length
MODEL 1835 60 cm
MODEL 1935 100 cm
MODEL 1945 120 cm
2.3 Horizontal beamwidth
MODEL 1835 4.0°
MODEL 1935 2.4°
MODEL 1945 1.9°
2.4 Vertical beamwidth
MODEL 1835 20°
MODEL 1935/ MODEL 1945 22°
2.5 Sidelobe
MODEL 1835 Within ±20° of main lobe: -18dB, outside ±20° of main lobe: -23dB
MODEL 1935 Within ±20° of main lobe: -20dB, outside ±20° of main lobe: -28dB
MODEL 1945 Within ±20° of main lobe: -24dB, outside ±20° of main lobe: -30dB
2.6 Polarization Horizontal
2.7 Antenna rotation speed

Furuno 1835 Specifications

General

Brand	Furuno
Model	1835
Category	Marine Radar
Language	English