7.3m ring focus telecommunication vsat equipment
Characteristics:
1.Conform to the CCIR580-4 standards and INTELSAT access requirements;
2.Ring focus antenna;
3.High gain, Low sidelobe, high G/T value;
4.Hot-dip zinc processed Antenna mount, with strong corrosion resistant ability;
5.Optional C band with 870 MHZ bandwidth;
6.2-ports or 4 ports Linear/Circular feed optional;
7.Automatic feed switching system for Linear and circular polarization;
8.Antenna azimuth ±90 continuous rotation
Performance Specification
Type:NS-SEC-730
Operating Frequency,GHz
C band Rx: 3.625~4.2
C band Tx: 5.85~6.425
Ku Band Rx: 10.95~12.75
Ku Band Tx: 13.75~14.5
Gain, Mid-Band, dBi
C band Rx: 48.0
C band Tx: 51.6
Ku Band Rx: 57.5
Ku Band Tx: 58.9
Polarisation
C band: Linear or circular
Ku Band:Linear
XPD(on axis),dB: 35
Axial Ratio(2-port)
C band Rx: 1.30
C band Tx: 1.09
Axial Ratio(4-port)
C band Rx: 1.06
C band Tx: 1.06
VSWR: 1.25:1
Antenna Noise Temperature
10degree Elevation: C band Rx: 43degree K Ku band Rx: 66degree K
30degree Elevation: C band Rx: 32degree K Ku band Rx: 52degree K
50degree Elevation: C band Rx: 29degree K Ku band Rx: 47degree K
G/T(El.>10degree)
C band Rx: 29.3dB/degree K(30degree LNA)
Ku band Rx: 36.1dB/degree K(70degree LNA)
-3dB Beam width,Mid-Band
C band Rx: 0.72degree
C band Tx: 0.47degree
Ku Band Rx: 0.23degree
Ku Band Tx: 0.2degree
Tx.Power Capacity,KW: C band Tx:5 Ku band Tx:2
Feed interface
C band Rx: CPR-229G
C band Tx: CPR-137G
Ku Band Rx: WR-75
Ku Band Tx: WR-75
Feed Insertion Loss,dB
C band Rx: Not more than 0.2
C band Tx: Not more than 0.2
Ku Band Rx: Not more than 0.2
Ku Band Tx: Not more than 0.25
Rx-Rx,Tx-Tx Linear,dB: 30
Tx-Tx,Rx-Rx Circluar,dB:C band:21
Isolation,Tx to Rx,dB: C band:90 Ku band:85
First sidelobe.dB:-14
90% envelop: 29-25 log�¸( �¸ is between 1degree and 20degree)
Mechanical Specification
Antenna diameter:7.3m
Antenna Type:Ring focus
Mount type:El.over Az.
Surface Accuracy(RMS): not more than 0.5mm
Antenna travel range
Azimuth travel range:90degree
Elevation travel range:0degree to 90degree
Polarisation:�±90degree
Drive mode:Manual or motorized
Azimuth travel speed:0.1degree/S
Elevation travel speed:0.1degree/S
Polarisation travel speed:1degree/S
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