JRC JMA-5212-4/6 User Manual

11.4 SCANNER (NKE-2254-7/9)
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11.4 SCANNER (NKE-2254-7/9)
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(1) Dimensions 25kW-7ft: Height 536mmuSwing Circle 2270mm
25kW-9ft: Height 536mmuSwing 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 r10°)
Below –30dB
(7/9ft, outside r10°)
(5) Revolution 24rpm (7/9ft, Normal)
(6) Peak Power 25kW r50%
(7) Transmitting Frequency 9410 r30MHz
(8) Transmitting Tube Magnetron [M1568BS]
(9) Pulse Width/Repetition Frequency
Short Middle Long
0.125nm 0.07PS/2250Hz
0.25nm 0.07PS/2250Hz
0.5nm 0.07PS/2250Hz
0.75nm 0.07PS/2250Hz 0.2PS/2250Hz
1.5nm 0.07PS/2250Hz 0.2PS/2250Hz 0.4PS/1400Hz
3nm 0.2PS/2250Hz 0.4PS/1400Hz 0.8PS/750Hz
6nm 0.4PS/1400Hz 0.8PS/750Hz 1.0PS/650Hz
12nm 0.4PS/1400Hz 0.8PS/750Hz 1.0PS/650Hz
24nm 1.0PS/650Hz
48nm 1.0PS/650Hz
96nm 1.2PS/510Hz
(10) Duplexer Circulator + Diode Limiter
(11) Mixer MIC Front End
(12) Intermediate Frequency Amplifier Intermediate Frequency: 60MHz
Band Width: 25MHz(0.07PS)
8MHz(0.2
PS, 0.4PS)
3MHz(0.8PS, 1.0PS, 1.2PS)
Gain: More than 90dB
Amplifying Characteristics: Logarithmic Amplifier
(13) Overall Noise Figure 7.5dB (Average)

JRC JMA-5212-4/6 Specifications

General

Brand	JRC
Model	JMA-5212-4/6
Category	Marine Radar
Language	English