Specifications - Furuno FR-7041R-MARK-2 Operator's Manual

1. ANTENNA UNIT
(1) Radiator:
(2) Radiator length:
(3) Horizontal beamwidth:
(4) Vertical beamwidth:
(5) Sidelobe:
(6) Polarization:
(7) Antenna rotation speed:
(8) Wind resistance:
2. TRANSCEIVER MODULE (CONTAINED IN ANTENNA)
(1) Transmitting tube:
(2) Frequency and Modulation: 9410 MHz ±30 MHz
(3) Peak output power:
(4) Pulselength and pulse repetition rate:
(5) Warm-up time:
(6) Modulator switching method FET
(7) IF Amplifier:
(8) Tuning:
(9) Receiver front end:
(10) Bandwidth:
(11) Duplexer:
3. DISPLAY UNIT
(1) Indication system:
(2) Display:
(3) Range scales (nm):
SPECIFICATIONS OF MARINE RADAR
FR-7041R MARK-2
Slotted wave-guide array
120 cm
1.9°
22°
Within ±20° of main lobe; less than -24 dB
Outside ±20° of main lobe; less than -30 dB
Horizontal
48 rpm (at signal cable: 5 m, no wind)
Relative wind speed 70 kts (36 m/s)
Magnetron MG5248 or E3571
4 kW nominal
0.06 µs, 2100 Hz (0.125, 0.25, 0.5, 0.75, 1, 1.5, 2, 3 km)
0.3 µs, 1200 Hz (3, 4, 6 km)
0.8 µs, 600 Hz (6, 8, 12, 16, 24, 32 km)
1' 30"
60 MHz
Automatic or manual
MIC (Microwave IC)
25 MHz (TX pulselength 0.3 µs and 0.08 µs)
3 MHz (TX pulselength 0.8 µs)
Circulator with diode limiter
PPI raster scan
12-inch rectangular monochrome CRT
Range, Ring Interval and Number of Rings:
0.125(0.025, 5), 0.25(0.05, 5), 0.5(0.1, 5), 0.75(0.25, 3), 1(0.2, 5),
1.5(0.25, 6), 2(0.5, 4), 3(1, 3), 4(1, 4), 6(2, 3), 8(2, 4), 12(3, 4), 16(4, 4),
24(6, 4), 32(8, 4)
SP - 1