AST 3.7 meter vsat antenna

3.7 Meter Ring Focus VSAT Antenna

Model: FS370

The AST 3.7m (12 ft) antenna delivers exceptional performance for transmit/receive and receive only applications for C-band and Ku-band frequencies. This antenna offers a reflector design that incorporates precision-formed panels, truss radials and hub assembly using matched tooling for interchangeable components. It features an innovative Cassegrain or Ring Focus feed and sub-reflector design which results in high gain, low noise temperature, high antenna efficiency and excellent rejection of noise and microwave interference. A large center hub provides spacious accommodation for equipment mounting. The reflector is supported by a galvanized elevation over azimuth kingpost pedestal that provides the required stiffness for pointing and tracking accuracy. The pedestals are designed for full orbital arc coverage and are readily adaptable to ground or rooftop installations.

We also offer custom satellite antenna solutions, please contact us for details.

Feature
* Meets or exceeds ITU-RS 580-5 and INTELSAT requirements
* High G/T, excellent pattern characteristics
* Self-aligning aluminum reflector, no field alignment
* Factory feed system testing
* All of steel parts to be processed by hot dipped zinc
* 2-port or 4-port Linear/Circular Feed Field changeable feed system, switchable circular to linear C-band
* Foundation hardware kit included
* Air or ocean transport packing

Options
* Specialized feed systems (e.g extended ,multi-band, Ka Band,DBS band )
* Antenna control system with tracking (Steptrack, Program Tracking and Inclined Orbit Tracking)
* Reflector and feed deicing systems
* ODU Support Kits
* Lightning Rod Kit
* Grounding Kit
* Cable-Mounting Kit
* Turnkey installation and testing
* Non-penetrating mount
* High wind configuration

ELECTRICAL SPECIFICATION
TypeFS370-ECFS370-KU
  Operating Frequency, GHzC-BandKu-Band
ReceiveTransmitReceiveTransmit
3.4~4.25.85~6.72510.95~12.7513.75~14.5
Gain, Mid-band,dBi42.24651.452.7
PolarizationLinear/CircularLinear
XPD (on Axis),dB35353535
XPD across 1dB Beam Width,dB33333333
Axial Ratio(Circular-Polarized)1.31.09
VSWR1.251.251.251.25
Antenna Noise Temperature 10°Elevation 30°Elevation 50°Elevation  35°K 29°K 25°K  49°K 39°K 35°K
-3dB Beam Width,Mid-band1.25°0.82°0.44°0.38°
Typical G/T ( El>10°)24dB/K ( 30° LNA)30.6dB/K ( 70° LNA)
Tx. Power Capability, KW52
Feed InterfaceCPR-229GCPR-137GWR-75WR-75
Feed Insertion Loss0.20.20.250.2
Isolation, Tx to Rx,dB9085
First Sidelobe 90% Peaks under Following Envelop-14 29-25logθ(1°≤θ<20°)-14 29-25logθ (1°≤θ<20°)
MECHANICAL SPECIFICATION
Antenna Diameter3.7m
Antenna TypeRing Focus
Mount TypeEl. Over Az.
Surface Accuracy(RMS)≤0.5mm
Antenna Pointing Range Azimuth Elevation Polarization  ±90°, ±60°(Continuous) 0°~90°(Continuous) 180°(Continuous)
Drive ModeManual or Motorized
Motor Drive System Azimuth Travel Rate Elevation Travel Rate Polarization  0.3°/S 0.2°/S 1°/S
ENVIRONMENTAL SPECIFICATION
Operational Wind72km/h Gusting to97km/h
Survival Wind216km/h
Temperature-40°C  ~ +60°C
Relative Humidity100%
Solar Radiation1135Kcal/ h/m2
Seismic (Survival)0.3g (H), 0.15g(V)
Ice Loading13mm Operational; 25mmSurvival

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