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Northstar 2 kW Radar Installation Manual 49
10 2 kW radar system specifications
2 kW scanner
DC input 10.8 V to 15.6 V DC (DC 12 V system ONLY)
Scanner type Radome
Scanner dimensions Depth: 17.7" (450 mm)
Height: 8.93 (227 mm)
Scanner weight 9.26 lbs (4.2 kg) ± 5%
Vibration Amplitude 0.1" (3 mm) (0 to 500 cpm)
0.29" (0.75 mm) (550 to 1500 cpm)
0.007" (0.2 mm) (1500 to 3000 cpm)
Waterproof IPX6
Plane of polarization Horizontal
Preheating time Minimum 90 seconds
Power consumption 25 W (maximum) at 12 V DC
Emission type P0N
FCC ID: CKEJMA1020
IC ID: 768381105A
R&TTE: DERA-RTTE-34/01-01
Peak power output 2 kW ±50% under any pulse conditions
Transmitter frequency 9445 ±30 MHz
Transmitter tube Magnetron NJRC M1537
Horizontal beam width 5.2º ± 10% (3 dB width)
Vertical beam width 30º ± 20% (3 dB width)
Side lobe level < -21 dB maximum (within ± 10°)
Rotation rate 27 rpm ±10%
Pulse length/PRF 0.08 μs +50/-25% (2250 Hz)
0.3 μs +50/-30% (1200 Hz)
0.8 μs ±25% (600 Hz)
See Pulse Width and Bandwidth Selector table (below).
Duplexer Microwave T-junction with diode limiter
Model NJRC NJS6947
Mixer MIC front-end
IF amplifier Center frequency 60 MHz ± 3 MHz
IF amplifier output 14 dB for -3.2 V into 50 ohms (typical)
IF band width 1 0 MHz ±3 MHz (0.08 μs)
3 MHz ±1 MHz (0.3 μs, 0.8 μs)
IF characteristic Linear
Gain Minimum 90 dB
Noise figure NJT1027 @ 7 dB (average) at front-end input
Temperature range +5ºF to +131ºF (-15ºC to +55ºC)
Relative humidity 95% at 95ºF (35ºC)
Relative wind velocity 118.11 ft (36.0 m)/sec (maximum 70 knots)