The Strength to Perform

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.

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Product Details

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.

Features

  • ‘Type-Approved’ bolt-together, all-aluminum reflector with self-aligning, fully interchangeable components
  • Designed for 1.5 to 31 GHz operation, meeting FCC 25.209 regulations in Ku-band and beyond the main beam at C band
  • Feed boom supports 300 lbs. (136 kg) of equipment
  • Galvanized steel EL over AZ pedestal with jackscrews or struts
  • Standard: Survives 125 mph (200 km/h) winds in any position; 130 mph (209 km/h) at preferential stow orientation
  • Optional: HWA survives 150 mph (240 km/h) winds in stow orientation (true zenith)

Options

  • 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

Upgrades

  • Low operating temperatures
  • High power configurations
  • Special upgrades may be available upon request − call for details

Specifications

C-Band 2-Port Circular Polarized
X-Band 2-Port Circular Polarized
Ku-Band 2-Port Linear Polarized (5)
DBS-Band 2-Port Linear Polarized
Ka-Band 4-port Circular Polarized
Electrical (1) Receive Transmit Receive Transmit Receive Transmit Receive Transmit Receive Transmit
Frequency (GHz)
3.625 -
4.200
5.850 -
6.425
7.250 -
7.750
7.900 -
8.400
10.700 -
12.750
13.750 -
14.500
10.700 -
12.750
17.300 -
18.400
17.700-
21.200
27.500-
31.000
Antenna Gain, Midband dBi (2)  42.00  45.90  47.30  47.70  51.10  52.40
 51.40  54.60  54.90  57.80
VSWR  1.50:1  1.30:1  1.25:1  1.25:1  1.30:1  1.30:1  1.30:1  1.30:1  1.30:1  1.30:1
Pattern Beamwidth (2)
-3 dB, at midband
-15 dB, at midband

1.35°
2.84°

0.87°
1.83°

0.72°
1.51°

0.69°
1.45°

0.47°
0.99°

0.41°
0.86°

0.45°
0.94°

0.31°
0.65°

.028°
0.59°

0.20°
0.42°
Antenna Noise Temperature
5° Elevation
10° Elevation
20° Elevation
40° Elevation

49 K
40 K
35 K
33 K

63 K
52 K
46 K
44 K
 
75 K
61 K
51 K
47 K
 
68 K
52 K
43 K
39 K
 
206 K
163 K
129 K
103 K
 
Typical G/T (dB/K) (3)
4.000 GHz, 30 K LNA
7.500 GHz, 50 K LNA
11.725 GHz, 70 K LNA
19.450 GHz, 120 K LNA
19.450 GHz, 200 K LNA

23.8






27.5



 


29.9


 


30.9


 



30.9
29.7
 
Axial Ratio  1.58 dB  0.75 dB  1.49  1.49          0.50  0.50
Power Handling (total)    1 kW CW    5 kW CW    2 kW CW    2 kW CW    1 kW CW
Cross Polarization Isolation
On Axis
Within 1.0 dB beamwidth

20.8 dB
20.8 dB

27.3 dB
27.3 dB

21.3 dB
21.3 dB

21.3 dB
21.3 dB

35.0 dB
35.0 dB

35.0 dB
35.0 dB

35.0 dB
35.0 dB

35.0 dB
30.0 dB

30.8 dB
30.8 dB

30.8 dB
30.8 dB
Port to Port Isolation
- Rx/Tx (Rx frequency)
- Tx/Rx (Tx frequency)
RF Specification

0 dB
-120 dB
975-1744

-85 dB
0 dB
975-1744

0 dB
-110 dB
975-2192

-110 dB
0 dB
975-2192

0 dB
-85 dB
975-2936

-30 dB
0 dB
975-2936

0 dB
-85 dB
975-2091

-75 dB
0 dB
975-2091

0 dB
-85 dB
975-4953

-85 dB
0 dB
975-4953
Sidelobe Performance  Meets ITU-RS-580, FCC (4) Meets ITU-RS-580, FCC Meets ITU-RS-580

 

 

Mechanical/Environmental (6) Fixed Post Mount Pedestal (PM) V-frame Pedestal (VX)
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
Drive Type
Azimuth Travel
Elevation Travel
Manual struts
360° coarse, 40° fine adjustment
0 to 90° continuous
Motorized jack screws
190° (2 continuous 120° segments)
0 to 90° continuous
Foundation (L x W x D)
Concrete
Reinforcing Steel
13.5 x 13.5 x 1.5 ft (4.1 x 4.1 x 0.46 m)
10.1 yds³ (7.74 m³)
1,294 lbs. (587 kg)
11.5 x 11.5 x 1.5 ft (3.5 x 3.5 x 0.46 m)
7.4 yds³ (5.66 m³)
685 lbs. (311 kg)
Shipping Containers One 20 ft standard (2 units in 40 ft standard)
Operational Wind Loading
Survival Wind Loading
45 mph (72 km/h) gusting to 60 mph (97 km/h)
125 mph (200 km/h) @ 58° F (15° C), any position; 130 mph (209 km/h) at preferential stow orientation
Operational Temperature
Survival Temperature
+5° to +122° F (-15° to +50° C)
-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