JRC JMA-5912-6 - Scanner (Nke-2254-7;9); Scanner Unit (Nke-2254-7;9)

11-5
11.5 SCANNER UNIT (NKE-2254-7/9)
(1) Dimensions 25 kW-7 ft: Height 536 mm × Swing Circle 2270 mm
25 kW-9 ft: Height 536 mm × Swing Circle 2825 mm
(2) Mass 25 kW-7 ft: Approx. 58 kg
25 kW-9 ft: Approx. 60 kg
(3) Polarization Horizontal Polarization
(4) Directional Characteristics Horizontal Beam Width: 1.0 ° (7 ft, -3 dB width)
0.8 ° (9 ft, -3 dB width)
Vertical Beam Width 20° (7/9 ft, -3 dB width)
Sidelobe Level: Below -26 dB
(7/9 ft, within ±10 °)
Below -30 dB
(7/9 ft, outside ±10 °)
(5) Revolution 24 rpm (7/9 ft, Normal)
(6) Peak Power 25 kW ±50 %
(7) Transmitting Frequency 9410 ±30 MHz
(8) Transmitting Tube Magnetron [M1568BS]
(9) Pulse Width/Repetition Frequency
SP1: 0.07 μs/2250 Hz
MP1: 0.2 μs/2250 Hz, MP2: 0.3 μs/1900 Hz,
MP3: 0.4 μs/1400 Hz
LP1: 0.8 μs/750 Hz, LP2: 1.0 μs/650 Hz, LP3: 1.2 μs/510 Hz
0.125 NM SP1
0.25 NM SP1
0.5 NM SP1
0.75 NM SP1 / MP1
1.5 NM SP1 / MP1 / MP2 / MP3
3 NM MP1 / MP2 / MP3 / LP1
6 NM MP1 / MP2 / MP3 / LP1 / LP2
12 NM MP1 / MP2 / MP3 / LP1 / LP2
24 NM MP3 / LP1 / LP2
48 NM LP2
96 NM LP3
(10) Duplexer Circulator + Diode Limiter
(11) Mixer MIC Front End
(12) Intermediate Frequency Amplifier Intermediate Frequency: 60 MHz
Band Width: 25 MHz (0.07 μS)
8 MHz (0.2 μs, 0.3 μs, 0.4 μs)
3 MHz (0.8 μs, 1 μs, 1.2 μs)
Gain: More than 90 dB
Amplifying Characteristics: Logarithmic Amplifier
(13) Overall Noise Figure 7.5 dB (Average)
(14) Compass Safe Distance Standard 2.4 m
Steering 1.8 m