Chapter 13 SPECIFICATIONS
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13.5 SCANNER
13.5.1 SCANNER (NKE-2043) SPECIFICATION
(1) Dimensions Height 275mmᶣDiameter of radome 620mm
(2) Mass Approx. 10kg
(3) Polarization Horizontal Polarization
(4) Directional Characteristic
Horizontal Beam Width (-3dB): 4°
Vertical Beam Width (-3dB): 25°
Sidelobe Level: -21dB or less (less than ±10° from the main lobe)
(5) Rotation Approx. 48rpm
(16/20/24/27/30/36/42/48rpm can be set)
(6) Peak Power 4 kW
(7) Transmitting Frequency 9410 ±30MHz
(8) Transmitting Tube Magnetron [MSF1421B]
(9) Pulse width/Repetition Frequency (Bandwidth) SP1: 0.08ȝs/4000Hz (20MHz)
SP2: 0.08ȝs/2250Hz (20MHz)
SP3: 0.13ȝs/1700Hz (20MHz)
MP1: 0.25ȝs/1700Hz (6MHz)
MP2: 0.5ȝs/1200Hz (3MHz)
LP1: 0.8ȝs/750Hz (3MHz)
LP2: 1.0ȝs/650Hz (3MHz)
(10) Range information 0.0625NM to 0.25NM: SP1
0.5NM: SP1, MP1
0.75NM, 1NM: SP2, MP1
1.5NM: SP2, MP1, MP2
2NM to 4NM: SP3, MP1, MP2
6NM to 16NM: MP2, LP1, LP2
24NM to 48NM: LP2
(11) Duplexer Circulator + Diode Limiter
(12) Front End Module MIC
(13) Intermediate Frequency Amplifier
Intermediate Frequency: 60MHz
Band Width: 20MHz (0.08ȝs, 0.13ȝs)
6MHz (0.25ȝs)
3MHz (0.5ȝs, 0.8ȝs, 1.0ȝs)
Gain: More than 90dB
Amplifying Characteristics: Logarithmic Amplifier
(14) Overall Noise Figure 6dB (Average)
(15) Tune AUTO/MANUAL
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