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