FURUNO
DRS SERIES
SP - 1 E3567S01A-M
SPECIFICATIONS OF RADAR SENSOR
DRS SERIES
1 RADIATOR
1.1 Antenna type
DRS2D/4D Patched waveguide array antenna
DRS4A/6A/12A/25A Slotted waveguide array antenna
1.2 Antenna length
DRS2D 19-inch
DRS4D 24-inch
DRS4A 3.4 ft
DRS6A 4 ft
DRS12A/25A 4 ft (XN12A), 6 ft (XN13A)
1.3 Horizontal beam width (3 dB)
DRS2D 5.2°
DRS4D 4.0°
DRS4A 2.3°
DRS6A 1.9°
DRS12A/25A 1.9° (XN12A), 1.4° (XN13A)
1.4 Vertical beam width (3 dB)
DRS2D/4D 25°
DRS4A/6A/12A/25A 22°
1.5 Gain
DRS2D 21.5dBi
DRS4D 23.0dBi
DRS4A 27.5dBi
DRS6A 28.5dBi
DRS12A/25A 28.5dBi (XN12A), 30dBi (XN13A)
1.6 Sidelobe attenuation
DRS2D -24 dB (within ±20°), -26 dB (±20° or more)
DRS4D -25 dB (within ±20°), -27 dB (±20° or more)
DRS4A -20 dB (within ±20°), -28 dB (±20° or more)
DRS6A/12A/25A -27 dB (within ±10°), -28 dB (±10° or more)
1.7 Rotation 24/36/48 rpm
2 RADAR FUNCTION
2.1 TX frequency 9410±30 MHz, P0N
2.2 Output power (nominal) DRS2D: 2.2 kW, DRS4D/4A: 4 kW, DRS6A: 6 kW, DRS12A: 12 kW
DRS25A: 25 kW
2.3 Duplexer Ferrite circulator with diode limiter
2.4 Intermediate frequency 60 MHz
2.5 Range, Pulse length and Pulse Repetition Rate (PRR)
Range (nm)
Pulse length (μs)
PRR (Hz approx.)
0.125 to 1.5 0.08 3000
1.5 to 3 0.3 1500
3 to 24 0.5 1000
12 to 48 0.7 600
32 to 64 (72/96) 0.8 600 (550)
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