GS4.5M VSAT spec.pdf
Key Features
* Meets or Exceeds CCIR 580 and INTELSAT Requirements
* Dual Reflector Modified Gregorian
* High G/T, Excellent Pattern Characteristics
* Hot-dipped Galvanized Steel Ground Mount Assembly
* C-band Antenna Operating in 800MHz Bandwidth Option
* 2-port, 3-port or 4-port Linear/Circular Feed
* Field Changeable Feed System, Switchable Circular to Linear C-band
* Antenna Az 0°~360°(Continuous) Pointing Range
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
* Deicing or Anti-icing
ELECTRICAL SPECIFICATION
Operating Frequency, GHz |
C-Band |
Ku-Band |
Receive |
Transmit |
Receive |
Transmit |
3.4~4.2 |
5.85~6.725 |
10.95~12.75 |
13.75~14.5 |
Gain, Mid-band, dBi |
44 |
47.3 |
53.2 |
54.3 |
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
10° Elevation
30° Elevation
50° Elevation |
2 port feed
34°K
24°K
21°K |
|
2 port feed
52°K
41°K
37°K |
|
-3dB Beam Width, Mid-band |
1.12° |
0.72° |
0.37° |
0.33° |
Typical G/T ( El>10° ) |
25.9dB/°K
( 30° LNA ) |
|
32.3dB/°K
( 70° LNA ) |
|
Tx. Power Capability, KW |
|
5 |
|
2 |
Feed Interface |
CPR-229G |
CPR-137G |
WR-75 |
WR-75 |
Feed Insertion Loss |
0.25 |
0.2 |
0.25 |
0.25 |
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 |
4.5 m |
Antenna Type |
Dual Reflector Modified Gregorian |
Mount Type |
El. over Az. |
Surface Accuracy (RMS) |
≤ 0.5mm |
Antenna Pointing Range
Azimuth
Elevation
Polarization |
±90 °, ±60 °(Continuous)
0°~90°(Continuous)
180°(Continuous) |
Drive Mode |
Manual or Motorized |
Motor Drive System
Azimuth Travel Rate
Elevation Travel Rate
Polarization |
0.11 °/S (0.06 °/S)
0.17 °/S (0.08 °/S)
1°/S |
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 |