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Ka Band Antenna

7.3M KA satellite communication antenna

Antenna diameter: 7.3m

Antenna type: Cassegrain/ring focus 

Antenna mount type: AZ/EL adopt turntable structure

RMS: ≤0.3mm

Antenna weight（N.W）: 8000kg

Antenna travel range:

AZ:  ±170° (continuous)   EL:  5°～90°

Antenna drive mode: Dual motor control

Servo system AZ rotation speed EL rotation speed:  0.5-0.01°/S 0.5-0.01°/S

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Description
RF Specifications
Model NS-SECK-730
Operating Frequency ,GHz Ka band
  Receive Transmit
  17.7~21.2 27.5~31
Gain,Mid-Band dBi 61.51 64.54
Polarization circular
Axial Ratio（4 port, circular） 1.0 1.0
VSWR 1.25：1 1.25：1
Noise temperature EL :   10°  30°  50°     120k  80k  71k       /  
G/T dB/K，10°El 36.70 /
-3dB beam width 0.14° 0.10°
Insertion loss, dB 0.7 0.7
Power capacity, KW   5
Interface WR-42 WR-28
Rx-Tx isolation, dB 85
First sidelobe, dB  Far sidelobes,  dBi -14  29 - 25 logθ（1°≤θ＜20°） -14  29 - 25 logθ（1°≤θ＜20°）

Mechanical specifications

Antenna diameter 7.3m
Antenna type Cassegrain/ring focus 
Antenna mount type AZ/EL adopt turntable structure
RMS ≤0.3mm
Antenna weight（N.W） 8000kg
Antenna travel range  AZ  EL    ±170° (continuous)  5°～90°
Antenna drive mode Dual motor control
Servo system AZ rotation speed EL rotation speed   0.5-0.01°/S 0.5-0.01°/S 

Environment specifications

Working wind speed 72 km/h
Without damage 216 km/h
Working temperature -30℃～50℃
Humidity 100%
Solar radiation 1135Kcal/h/m²
Ice load Work normally: 13mm ; without damage: 25mm  
Seismic capacity Horizontal: 0.3G;  vertical: 0.1G
Surface treatment Steel parts: thermal spraying zinc; aluminum part: primer paint+surface paint
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