Model 3.8m Dual Offset Antenna

GD Satcom

Model 3.8m Dual Offset Antenna

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  • L, S, C, X, Ku, DBS and Ka-band feed configurations
  • C/Ku receive only feed systems
  • Specialized feed systems (e.g., extended, multi-band)
  • Antenna control system with tracking
  • Reflector and feed deicing systems
  • Integrated transmit cross-axis kits
  • Integrated LNA or LNB systems

  • Description
  • Technical Specifications
  • Support Documents

Overview

The General Dynamics SATCOM Technologies 3.8-meter antenna delivers exceptional performance for transmit/ receive and receive only applications in L through Ka-band frequencies. This antenna offers a dual offset reflector design that incorporates precision-formed panels, contoured radials and a machined hub assembly. The state-of-the-art design provides exceptional performance for low cross-polarization levels and excellent sidelobe patterns. The rugged feed boom can support up to 300 lbs. (136 kg) of integration equipment. The reflector is supported by a galvanized steel fixed or motorizable 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 using concrete foundations, load-frames or non-penetrating mounts. The electrical performance is compliant with FCC 25.209 regulations and ITU-RS-580 sidelobe specifications. Type Approved configurations are available for Intelsat (F1, E2), Eutelsat (L, M), Asiasat, Europe Star and Singapore Telecom.

Details

  • L, S, C, X, Ku, DBS and Ka-band feed configurations
  • C/Ku receive only feed systems
  • Specialized feed systems (e.g., extended, multi-band)
  • Antenna control system with tracking
  • Reflector and feed deicing systems
  • Integrated transmit cross-axis kits
  • Integrated LNA or LNB systems
  • HPAs, converters and M&C systems
  • Fixed or motorizable pedestals
  • Non-penetrating and load frame mounts
  • Packing for sea and air transport
  • Turnkey installation and testing
  • High wind antenna (HWA) option for 150 mph (240 kmh) wind survival

Mechanical/Environmental
Antenna Size 3.8 meters (12.5 feet)
Antenna Type Dual offset reflector design
Reflector Construction Precision-formed aluminum panels with heat-diffusing white paint; cleaned and brightened aluminum back-up structure
Mount Configuration Elevation over azimuth pedestal, constructed of galvanized steel
Shipping Containers One 20 ft standard (2 units in 40 ft standard)
Operational Wind Loading 45 mph (72 km/h) gusting to 60 mph (97 km/h)
Survival Wind Loading 125 mph (200 km/h) @ 58° F (15° C), any position; 130 mph (209 km/h) at preferential stow orientation
Operational Temperature +5° to +122° F (-15° to +50° C)
Survival Temperature -22° to +140° F (-30° to +60° C), low temperature options available
Rain Up to 4 in/h (10 cm/h)
Relative Humidity 0 to 100% with condensation
Solar Radiation 360 BTU/h/ft² (1,000 Kcal/h/m²)
Ice (survival) 1 in (2.5 cm) on all surfaces or 1/2 in (1.3 cm) on all surfaces with 80 mph (130 km/h) wind gusts
Atmospheric Conditions As encountered in coastal regions and/or heavily industrialized areas
Shock and Vibration As encountered during shipment by airplane, ship or truck
(View our PDF Datasheet for more information)

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