Furuno FR-2155 User Manual

1-4
1.3 Specifications
SCANNER UNIT
ITEM FR-2155
Radiator Type Slotted Waveguide Array
Radiator Length 8 ft (XN-4A), 10 ft (XN5A)
Horizontal Beamwidth 0.95 deg. (XN4A), 0.75 deg.(XN5A)
Vertical Beamwidth 20 deg. (XN4A, XN5A)
Within +10 deg. to –10 deg.
of mainlobe
–28dB or less (XN4A, XN5A)
Sidelobe
Attenuation
Outside +10 deg. to –10
deg. of mainlobe
–32dB or less (XN4A, XN5A)
Polarization Horizontal
Antenna Rotation
approx. 20 rpm (3
∅
60 Hz / DC)
approx. 16 rpm (3
∅
50 Hz)
Scanner Housing Structure Open Radiator
Standard 1.65 m
Compass Safe
Distance
Steering 1.25 m
TRANSCEIVER
ITEM FR-2155
Magnetron M-4505 E
Frequency &
Modulation
9385 MHz to 9445 MHz, P0N (X band)
Peak Output Power 50 kW
0.08 µs, approx. 2200 Hz (S1 : 0.125 nm to 3 nm)
0.2 µs, approx. 1100 Hz (M1 : 0.75 nm to 6 nm)
0.6 µs, approx. 600 Hz (M2 : 3 nm to 24 nm)
Pulselength & Pulse
Repetition Rate
1.2 µs, approx. 600 Hz (M3 : 6 nm to 120 nm)
Modulator SCR Switc
Duplexer Circulator with diode limiter
Tuning Automatic or Manual
Intermediate Frequency 60 MHz
Bandwidth
25 MHz (0.08 µs, 0.2 µs), 3 MHz (0.6 µ,, 1.2 µ)

Furuno FR-2155 Specifications

General

Brand	Furuno
Model	FR-2155
Category	Marine Radar
Language	English