GS1.8M VSAT spec.pdf
Key Features
* Meets or Exceeds CCIR 580 and INTELSAT Requirements
* High G/T, Excellent Pattern Characteristics
* Hot-dipped Galvanized Steel Ground Mount Assembly
* C-band Antenna Operating in 800MHz Bandwidth
* 2-port, 3-port or 4-port Linear/Circular Feed
* Field Changeable Feed System, Switchable Circular to Linear C-band
Antenna Accessories
*Motorization Kits
* 50 Satellite Positions Preset
* Limit Switches
* Steptrack
* ODU Support Kits
* Factory Feed System Testing and Documentation
* Ocean Transport Packing
* Foundation Kit
* Lightening Rod Kit
* Grounding Kit
* Cable-Mounting Kit
* Major Subsystem Spare Part Kits
* Anti-icing and Deicing
ELECTRICAL SPECIFICATION
Operating Frequency, GHz |
C-Band |
Ku-Band |
Receive |
Transmit |
Receive |
Transmit |
3.4~4.2 |
5.85~6.425 |
10.95~12.75 |
13.75~14.5 |
Gain, Mid-band, dBi |
35.5 |
39.5 |
45.3 |
46.5 |
Polarization |
Linear/ Circular |
Linear |
XPD (on Axis), dB |
35 |
35 |
35 |
35 |
Axial Ratio (Circular-Polarized) |
1.30 |
1.09 |
|
|
VSWR |
1.25 |
1.25 |
1.25 |
1.25 |
Antenna Noise Temperature
10° Elevation
30° Elevation
50° Elevation |
2 port feed
39°K
29°K
26°K |
|
2 port feed
43°K
36°K
32°K |
|
-3dB Beam Width, Mid-band |
2.88° |
1.9° |
0.87° |
0.74° |
Tx. Power Capability, KW |
|
5 |
|
2 |
Feed Interface |
CPR-229G |
CPR-137G |
WR-75 |
WR-75 |
Feed Insertion Loss |
0.2 |
0.2 |
0.25 |
0.2 |
Isolation, Tx to Rx, dB |
90 |
85 |
First Sidelobe
90% Peaks under Following Envelop |
-14
29-25logθ(1°≤θ<20° ) |
-14
29-25logθ (1°≤θ<20° ) |
Mechanical Specification
Antenna Diameter |
1.8 m |
Antenna Type |
Offset/Prime Focus |
Mount Type |
El. over Az. |
Surface Accuracy (RMS) |
≤ 0.35mm |
Antenna Pointing Range
Azimuth
Elevation
Polarization |
0°~360°, ±10 °(Continuous)
0°~90°(Continuous)
360°(Continuous) |
Drive Mode |
Manual or Motorized |
Environmental Specification
Operational Wind |
72km/h Gusting to 97km/h |
Survival Wind |
216km/h |
Temperature |
-40°C ~ + 60°C |
Relative Humidity |
100% |
Solar Radiation |
1135Kcal/ h/ m2 |
Seismic (Survival) |
0.3g (H), 0.15g (V) |
Ice Loading |
13mm Operational; 25mm Survival |