Specifications – Furuno FR-8051 User Manual
Page 11

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SPECIFICATIONS
Antenna Unit
Type
Slotted waveguide array
Polarization
Horizontal
Length
4 ft(XN2)
6.5 ft(XN3)
6.5 ft (XN3A)
8 ft(XN4A)
Beamwidth
1.8 x 25
°
1.2 x 25
°
1.23 x 20
°
0.9 x 20
°
Rotation speed
24 rpm (36 rpm optional)
Transceiver Module
Frequency
9410 MHz
±
30 MHz (X-band)
Peak output power
FR- 8051: 6 kW
FR- 8111: 10 kW
FR- 8251: 25 kW
Transmitting tube
FR- 8051: E3560, MG5232
FR- 8111: E3566 or MG5241
FR- 8251: 9M752 or M5187F
Pulselength (PL) & Pulse Repetition Rate (PRR)
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Modulator
FR-8051/8111: FET switching method
FR-8251: Line Pulse
I/F amplifier
Logarithmic, IF 60 MHz
Bandwidth: 25MHz (0.08
µ
s), 2.5 MHz (0.3
µ
s, 0.6
µ
s, 1.2
µ
s)
Tuning
Automatic or manual
Receiver front end
MIC (Microwave IC)
Duplexer
Circulator with diode limiter
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