| Message: | Electrical Specification
Type AT73C AT73K
Operating Frequency, GHz C band Ku band
Receive Transmit Receive Transmit
3.625~4.2 5.85~6.425 10.95~12.75 13.75~14.5
Gain, Mid-band, dBi 48 51.6 57.5 58.9
Polarization Linear /circular Linear
XPD(on Axis), dB 35 35 35 35
XPD across 1dB Beam Width, dB 33 33 33 33
Axial Ratio
(Circular-Polarized) 2-Port Feed
4-Port Feed 1.30/1.06 1.09/1.06
VSWR 1.25 1.25 1.25 1.25
Antenna Noise Temperature 2-port feed
10° Elevation
30° Elevation
50° Elevation
43°K
32°K
29°K
66°K
52°K
47°K
Typical G/T（EL>10°，2-port） 29.3 dB／K
（30ºLNA） 36.1 dB／K
（70ºLNA）
-3 dB Beam Width, Mid-band 0.72º 0.47º 0.23º 0.20º
Tx. Power Capability, KW 5 2
Feed Interface CPR—229G CPR—137G WR-75 WR-75
Feed Insertion Loss, dB 0.2 0.2 0.25 0.2
Isolation, Tx to Rx, dB 90 85
Side lobe CCIR580-4
Mechanical Specification
Antenna Diameter 7.3m
Antenna Type Cassegrain
Surface Accuracy（RMS） ≤0.5mm
Antenna Pointing Range Azimuth ±85°(3 sections)
Elevation 0°~90°(Continuous)
Polarization ±90°(Continuous)
Drive Mode Manual or Motorized
Motor Drive System Azimuth Travel Rate 0.11°/S(0.03°/S)
Elevation Travel Rate 0.17°/S(0.04°/S)
Polarization Travel Rate 1 ° / s
Antenna reflector Material Aluminum Alloy
Finish of steel parts Hot dipped Zinc
Environmental Specification
Operational Wind 72km/h gusting to 97km/h
Survival Wind 216km/h
Temperature -40°~+60°
Relative Humidity 100%
Solar Radiation 1135Kcal/h/m²
Seismic(Survival) 0.3g(H), 0.15g(V)
Ice Loading 13mm Operational; 25mm Survival
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