Furuno FAR-2807 - Specifications

FURUNO FAR-21x7/28x7(-BB) SERIES
SP - 1 E3519S01T-M
190508
SPECIFICATIONS OF MARINE RADAR/ARPA
FAR-21x7/28x7(-BB) SERIES
1 ANTENNA UNIT
1.1 Type Slotted waveguide array
1.2 Beam width and sidelobe attenuation
Radiator type
X-band
S-band
XN12AF XN20AF XN24AF SN36AF
Length 4 ft 6.5 ft 8 ft 12 ft
Beam width(H) 1.9° 1.23° 0.95° 1.8°
Beam width(V) 20° 20° 20° 25°
Sidelobe within ±10° -24 dB -28 dB -28 dB -24 dB
Sidelobe outside ±10°
-30 dB -32 dB -32 dB -30 dB
1.3 Polarization Horizontal
1.4 Rotation
FAR-2117/2127/2817/2827 24 rpm or 42 rpm (option)
FAR-2137S/2837S 21 rpm (50 Hz)/26 rpm (60 Hz)/45 rpm (HSC: high speed craft)
FAR-2827W 24 rpm
FAR-2837SW 21 rpm (50 Hz), 26 rpm (60 Hz)
1.5 Wind tolerance Relative wind 100 kn
1.6 De-icer (option) On: When temperature goes down to +5°C
Off: When temperature goes up to +12°C
2 RF TRANSCEIVER
2.1 Frequency
X-band 9410 MHz ±30 MHz
S-band 3050 MHz ±30 MHz
2.2 Output power
FAR-2117/2817 12 kW
FAR-2127/2827/2827W 25 kW
FAR-2137S/2837S/2837SW 30 kW
2.3 Range, Pulse repetition frequency (PRF), Pulselength
PRF (Hz)
Range (NM)
0.125 0.25 0.5 0.75 1 1.5 2 3 4 6 8 12 16 24 32 48 72 96
3000* 0.07 µs
3000* 0.15 µs
1500 0.3 µs
1000 0.5 µs
1000 0.7 µs
600 (500**) 1.2 µs
1, 2, 4, 8, 16, 32 NM ranges not available on IMO radar.
*: 32 NM w/TT: 2200 Hz, **: for 96 NM
2.4 Duplexer
FAR-2117/2127/2817/2827/2827W/2137S/2837S
Ferrite circulator with diode limiter
FAR-2837SW Ferrite circulator with TR limiter