Furuno FAR-2117 Service Manual

1.3 Specifications
1-16
1.3 Specifications
1.3.1 TR unit and Antenna Radiator
Table 1.3.1 List of Transceiver Unit
Type of T/R Unit RTR-078 RTR-079 RTR-080 RTR-081 RTR-082
Model
FAR-2117
FAR-2817
FAR-2127
FAR-2827
FAR-2137S
FAR-2837S
FAR-2827W FAR-2837SW
Output 12 kW 25 kW 30 kW 25 kW 30 kW
Frequency 9410+30 MHz 9410+30 MHz 3050+30 MHz 9410+30 MHz 3050+30 MHz
Magnetron
MAF1425B
or MG4010
MG5436 MG5223F MG5436 MG5223F
T/R unit arrangement UP UP UP DOWN DOWN
Tx/Rx switching
method
Circulator + Diode Limitter Circulator + TR Limiter
Modulation method FET Switching
Type of
IF amplification
Semi-Log
IF frequency 60 MHz
Table 1.3.2 List of Antenna Radiator
Type of Antenna
Radiator
XN-5A XN-12AF XN-20AF XN-24AF SN-30AF SN-36AF
FAR-
2127-5A
2827-5A
2817
2827
2117
2127
2817
2827
2117
2127
2827W
2817
2827
2117
2127
2827W
2137S
2837S
2837SW
2137S
2837S
2837SW
Antenna length 10 ft 4 ft 6.5 ft 8 ft 10 ft 12 ft
Rotation diameter 334 cm 140 cm 220 cm 270 cm 320 cm 386 cm
TX frequency 9.410 MHz 9.410 MHz 9.410 MHz 9.410 MHz 3.050 MHz 3.050 MHz
Horizontal beam width
(-3 dB point)
0.75 deg. 1.9 deg. 1.23 deg. 0.95 deg. 2.3 deg. 1.8 deg.
Vertical beam width 20 deg. 20 deg. 20 deg. 20 deg. 25 deg. 25 deg.
Side lobe
(maximum value)
Less than +10 deg.
More than +10 deg.
-28 dB
-32 dB
-24 dB
-30 dB
-28 dB
-32 dB
-28 dB
-32 dB
-24 dB
-30 dB
-24 dB
-30 dB
Gain 32 dB 27.5 dB 30.0 dB 31.5 dB 26.2 dB 26.8 dB
Radiator Slotted waveguide array
Polarization Horizontal

Furuno FAR-2117 Specifications

General

Brand	Furuno
Model	FAR-2117
Category	Marine Radar
Language	English