JRC JMA-5212-4, User Manual

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11.4 SCANNER (NKE-2254-7/9)
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11.4
SCANNER (NKE-2254-7/9)
(1) Dimensions 25kW-7ft: Height 536mm
u
Swing Circle 2270mm
25kW-9ft: Height 536mm
u
Swing Circle 2825mm
(2) Mass
25kW-7ft: Approx. 58 kg
25kW-9ft: Approx. 60 kg
(3) Polarization
Horizontal Polarization
(4) Directional Characteristics Horizontal
Beam Width: 1.0° (7ft, –3dB width)
0.8° (9ft, –3dB width)
Vertical Beam Width 20° (7/9ft, –3dB width)
Sidelobe Level: Below –26dB
(7/9ft, within
r
10°)
Below –30dB
(7/9ft, outside
r
10°)
(5) Revolution 24rpm (7/9ft, Normal)
(6) Peak Power
25kW
r
50%
(7) Transmitting Frequency
9410
r
30MHz
(8) Transmitting Tube
Magnetron [M1568BS]
(9) Pulse Width/Repetition Frequency
Short Middle Long
0.125nm 0.07
P
S/2250Hz
0.25nm 0.07
P
S/2250Hz
0.5nm 0.07
P
S/2250Hz
0.75nm 0.07
P
S/2250Hz 0.2
P
S/2250Hz
1.5nm 0.07
P
S/2250Hz 0.2
P
S/2250Hz 0.4
P
S/1400Hz
3nm 0.2
P
S/2250Hz 0.4
P
S/1400Hz 0.8
P
S/750Hz
6nm 0.4
P
S/1400Hz 0.8
P
S/750Hz 1.0
P
S/650Hz
12nm 0.4
P
S/1400Hz 0.8
P
S/750Hz 1.0
P
S/650Hz
24nm 1.0
P
S/650Hz
48nm 1.0
P
S/650Hz
96nm 1.2
P
S/510Hz
(10) Duplexer Circ Diode Limiter
(11) Mixer
MIC Front End
(12) Intermediate
Frequency Amplifier Intermediate Frequency: 60MHz
Band Width: 25MHz(0.07
P
S)
8MHz(0.2
P
S, 0.4
P
S)
3MHz(0.8
P
S, 1.0
P
S, 1.2
P
S)
Gain: More than 90dB
Amplifying Characteristics: Logarithmic Amplifier
(13) Overall Noise Figure
7.5dB (Average)