Users Manual Part 6

FURUNO FAR-2xx8 SERIES
SP - 1 E3652S01L-M
191029
SPECIFICATIONS OF MARINE RADAR
FAR-2xx8 SERIES
1 ANTENNA RADIATOR
1.1 Type Slotted waveguide array
1.2 Beam width and sidelobe attenuation
Radiator type
X-band S-band
XN12CF XN20CF XN24CF** SN24CF* SN30CF* SN36CF
Length 4 ft 6.5 ft 8 ft 8 ft 10 ft 12 ft
Horizontal beam width 1.9° 1.23° 0.95° 2.6° 2.3° 1.8°
Vertical beam width 20° 25°
Sidelobe within ±10° -24 dB -28 dB -28 dB
－
-24 dB
Sidelobe outside ±10° -30 dB -32 dB -32 dB -30 dB
Sidelobe within ±20°
－
-23 dB -24 dB
－
Sidelobe outside ±20° -27 dB -30 dB
*: A/B-type radar only. **: 24 rpm only.
1.3 Polarization Horizontal
1.4 Rotation 24 rpm or 42 rpm (for high speed craft)
1.5 Wind load 100 kn relative
1.6 De-icer (option) On: when temperature goes down to 0°C
Off: when temperature goes up to +5°C
2 TRANSCEIVER
2.1 TX Frequency and modulation
X-band (Magnetron) 9410 MHz ±30 MHz, P0N
X-band (Solid state) CH1 P0N: 9403.75 MHz/ Q0N: 9423.75 MHz ±5 MHz or
CH2 P0N: 9413.75 MHz/ Q0N: 9433.75 MHz ±5 MHz
S-band (Magnetron) 3050 MHz ±30 MHz, P0N
S-band (Solid state) CH1 P0N: 3043.75 MHz/ Q0N: 3063.75 MHz ±5 MHz or
CH2 P0N: 3053.75 MHz/ Q0N: 3073.75 MHz ±5 MHz
2.2 Output power
FAR-2218(BB)/2318 12 kW
FAR-2228(BB)/2328/2328W 25 kW
FAR-2228-NXT(BB)/2328-NXT 600 W (equivalent to magnetron radar 25 kW)
FAR-2238S(BB)/2338S/2338SW 30 kW
FAR-2238S-NXT(BB)/2338S-NXT 250 W (equivalent to magnetron radar 30 kW)
2.3 Range scale, Pulse Repetition Rate and Pulselength
X/S-band Magnetron radar
PRR
(Hz approx.)
Range scale (NM)
0.125 0.25 0.5 0.75 1 1.5 2 3 4 6 8 12 16 24 32 48 96
3000* S1
3000* S2
1500 M1
1200 M2
1000 M3
600** L
1/2/4/8/16/32 NM ranges: B/W-type radar only
*: 2200 Hz with TT range on 32 NM. **: 500 Hz on 96 NM range.