Specifications; Display Unit - Furuno FA Manual

FURUNO
SPECIFICATIONS OF MARINE RADAR/ARPA
1. ANTENNA RADIATORS
1. Type
2. Beam width and sidelobe attenuation
Radiator type
Length
Beam width(H)
Beam width(V)
Sidelobe within ±10°
Sidelobe outside ±10°
3. Polarization
4. Rotation
2. RF TRANSCEIVER
1. Frequency
2. Output power
3. Pulselength, PL, PRF and range
Pulselength
PL (µs)
PRF (Hz)
Range scale
(nm)
*: 2200 Hz with ARPA on, 32 nm range **: 450 Hz on 96 and 120 nm ranges #: Non-IMO type only
4. IF
5. Noise figure
6. Duplexer

3. DISPLAY UNIT

1. Screen
Size, model
Display area (mm)
Resolution
Effective radar diameter
2. Minimum range and
range discrimination
FAR-21x7(-BB)/28x7 SERIES
Slotted waveguide array
X-band
XN12AF XN20AF
4 ft 6.5 ft
1.8° 1.23°
20°
-24 db -28db
-30 db -32 db
Horizontal
FAR-2117/2127/2827: 24 rpm or 42 rpm
FAR-2137S/2837S: 21/26 rpm or 45 rpm
FAR-2827W: 24 rpm
FAR-2837SW: 21/26 rpm
X-band: 9410 MHz ±30 MHz, S-band: 3050 MHz ±30 MHz
FAR-2117/2817: 12 kW
FAR-2137S/2837S/2837SW: 30 kW
Unwanted emissions comply with ITU-R RR.
S1 S2
0.07 0.15
3000* 3000*
0.125, 0.5, 0.75,
0.25, 0.5, 1.5, 3
0.75, 1.5
60 MHz
6 dB (typical)
Ferrite circulator with diode limiter for
FAR-2117/2127/2137S/2817/2827/2837S
Ferrite circulator with TR limiter for FAR-2827W/2837SW
Yellow or green echoes in 32 levels. Rasterscan non-interlace at
48.3kHz horizontal, 60 Hz vertical. Non-IMO type has yellow or
green monochrome plus 3-color display according to echo strengths.
FAR-21x7 series
20.1-inch color LCD, MU-201CR
399.36 x 319.49
1280 x 1024 pixels
308 mm
35 m
SP - 1
XN24AF SN30AF
8 ft
0.95°
20° 20°
-28 db
-32 db
FAR-2127/2827/2827W: 25 kW
M1 M2
0.3 0.5
1500 1000
0.75, 1.5, 3, 6, 12,
3, 6 24
23.1-inch color LCD, MU-231CR
470.4 x 352.8
1280 x 1024 pixels
340 mm
FAR-21x7(-BB)/28x7 SERIES
S-band
SN36AF
10 ft 12 ft
2.3° 1.8°
25° 25°
-24 db -24 db
-30 db -30 db
M3
0.7
1000 600**
3, 6, 12, 6, 12, 24,
24 48, 96,
120#
FAR-28x7 series
E3519S01C-M
L
1.2