Scanner Unit Specification; Scanner Unit (Nke-2042 : Redome Type); Scanner Unit (Nke-2062 : 6Kw Rotation Type) - JRC JMA-5104 Instruction Manual

8.2 Scanner Unit Specification

8.2.1 Scanner unit (NKE-2042 : Redome type)

1) Dimensions
2) Mass
3) Polarization
4) Beam width
Horizontal (-3dB)
Vertical (-3dB)
Side lobe level
5) Rotation speed
6) Frequency
7) Peak power
8) Pulse length/repetition frequency
9) Modulator
10) Duplexer
11) Front end module
12) IF amplifier
13) Tuning

8.2.2 Scanner unit (NKE-2062 : 6kW rotation type)

1) Dimensions
2) Mass
3) Polarization
4) Beam width
Horizontal (-3dB)
Vertical (-3dB)
Side lobe level
5) Rotation speed
6) Frequency
7) Peak power
8) Pulse length/repetition frequency
9) Modulator
10) Duplexer
Height : 275mm, Diameter of radome : 620mm
Approx. 10.5kg
Horizontal
4˚
25˚
Less than -21dB within 10˚ of main beam
Approx. 27rpm
9410 ± 30MHz
4kW
0.08µs/2250Hz : 0.125nm, 0.25nm, 0.5nm, 0.75nm,
1.5nm(S)
0.25µs/1700Hz : 1.5nm(L), 3nm(S)
0.5µs/1200Hz : 3nm(L), 6nm(S)
1.0µs/650Hz : 6nm(L), 12nm, 24nm, 48nm
(S: Short, L: Long)
Solid-state modulator
Circulator/diode limiter
Built in
Logarithmic amplifier, Noise figure 6dB maximum.
Manual/Auto
Height : 432mm, Swing circle : 1220mm
Approx. 24kg
Horizontal
2˚
30˚
Less than -23dB within 10˚ of main beam
Other than -26dB within 10˚ of main beam
Approx. 27rpm
9410 ± 30MHz
6kW
0.08µs/2250Hz : 0.125nm, 0.25nm, 0.5nm, 0.75nm,
1.5nm(S)
0.25µs/1700Hz : 1.5nm(L), 3nm(S)
0.5µs/1200Hz : 3nm(L), 6nm(S)
1.0µs/650Hz : 6nm(L), 12nm, 24nm, 48nm, 72nm
(S: Short, L: Long)
Solid-state modulator
Circulator/diode limiter
101