The Strength to Perform

The General Dynamics SATCOM Technologies 9.0-meter antenna delivers exceptional performance for transmit/ receive and receive only applications for L through Ka-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 feed and subreflector design which results in high gain, low noise temperature, high antenna efficiency and excellent rejection of noise and microwave interference.

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Product Details

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. The electrical performance is compliant with FCC 25.209 regulations, ITU-RS-580 sidelobe specifications and Intelsat (F3) and Eutelsat requirements.

Features

  • All-aluminum reflector with fully interchangeable components
  • Designed for 1.5 to 18 GHz operation, meeting FCC and ITU-RS- 580 requirements
  • Galvanized steel elevation over azimuth pedestal with jackscrews
  • Survives 125 mph winds in any position

Options

  • L, S, C, X, Ku, DBS and Ka-band feed configurations
  • C/Ku receive-only feed systems
  • CP/LP manual or remote switchable feeds
  • Specialized feed systems (e.g. extended, multi-band)
  • Antenna control system with tracking
  • Reflector and feed deicing systems
  • Environmental hub configurations
  • Integrated transmit cross-axis kits
  • Integrated LNA or LNB systems
  • HPAs, converters and M&C systems
  • Load frame mounts
  • Packing for sea and air transport
  • Turnkey installation and testing

Upgrades

  • X-band low PIM reflector/feed configurations
  • Ku and Ka monopulse tracking available
  • Extended azimuth travel, in segments and continuous
  • High wind configurations
  • Low operating temperatures
  • High power configurations
  • High stiffness configuration for Ka-band operation

Specifications

C-Band 4-Port Circular Polarized
C-Band 4-Port Circular Polarized
Extended C-Band 4-Port Linear Polarized
Ku-Band 4-Port Linear Polarized
DBS-Band 4-Port Linear Polarized
Electrical (1) Receive Transmit Receive Transmit Receive Transmit Receive Transmit Receive Transmit
Frequency (GHz)
3.625 -
4.200
5.850 -
6.425
3.625-
4.200
5.850-
6.425
3.400 -
4.200
5.850 -
6.725
10.700 -
12.750
13.750 -
14.500
10.700 -
12.750
17.300 -
18.400
Antenna Gain, Midband dBi (2) 50.00 53.70 50.10 53.60 49.90 53.70
58.50 60.10 58.80 61.50
VSWR 1.25:1  1.25:1  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
0.54°
1.13°
0.35°
0.73°
0.53°
1.11°
0.36°
0.76°
0.54°
1.13°
0.35°
0.73°
0.18°
0.38°
0.16°
0.34°
0.19°
0.40°
0.14°
0.29°
Antenna Noise Temperature (K)
5° Elevation
10° Elevation
20° Elevation
40° Elevation

52
43
37
35

47
37
32
30
 
55
45
40
38
 
90
76
68
64
 
81
66
57
53
 

Typical G/T (dB/K) (3)

4.000 GHz, 30 K LNA 29.8 30.0 29.6
11.725 GHz, 70 K LNA

31.7 32.2   31.4
 
37.1
 
37.8
 
Axial Ratio (dB)  0.50  0.50                
Power Handling (total)    10 kW CW    5 kW CW    10 kW CW    2 kW CW    2 kW CW
Cross Polarization Isolation (dB)
On Axis
Within 1.0 dB beamwidth

30.8
30.8

30.8
30.8

35.0
32.0

35.0
32.0

35.0
30.0

35.0
30.0

35.0
35.0

35.0
35.0

35.0
35.0

35.0
30.0
Port to Port Isolation (dB)
- Rx/Tx (Rx frequency)
- Tx/Rx (Tx frequency)

0
-85

-70
0

0
-85

-70
0

0
-85

-70
0

0
-85

-70
0

0
-85

-75
0
RF Specification 975-1642  975-1717  975-1789  975-2275  975-2407
Sidelobe Performance  Meets ITU-RS-580, FCC

 

Mechanical/Environmental (4) Kingpost Pedestal (KX120) Kingpost Pedestal (KX200) High Wind Kingpost Pedestal (KX180-HW) 
Antenna Diameter 9.0 meters (29.5 feet)
Antenna Type Cassegrain design
Reflector Construction 16 precision-formed aluminum panels with heat-diffusing white paint
Cleaned and brightened aluminum back-up structure
 Galvanized steel backup structure
Hub Dimensions 70 in (178 cm) OD, 36 in (91 cm) depth
Mount Configuration Elevation over azimuth pedestal, constructed of galvanized A36 steel
Drive Type
Azimuth Travel
Elevation Travel
Manual jack screws
120° continuous
5 to 90° continuous
Manual jack screws
200° (2 segments @ 120°)
0 to 90° continuous
 Manual jack screws
180° (2 segments @ 95°)
0 to 90° continuous
Foundation (L x W x D)
Concrete
Reinforcing Steel
22.0 x 22.0 x 2.0 ft (6.7 x 6.7 x 0.61 m)
36.0 yds³ (27.5 m³)
6,100 lbs. (2,767 kg)
22.0 x 22.0 x 1.5 ft (6.7 x 6.7 x 0.46 m)
27.0 yds³ (20.6 m³)
3,560 lbs. (1,615 kg)
26.5 x 26.5 x 2.5 ft (8.1 x 8.1 x 0.76 m)
65.0 yds³ (49.7 m³)
8,335 lbs. (3,799 kg)
Shipping Containers One 40 ft standard Two 40 ft standard
Operational Wind Loading
Survival Wind Loading
- Any position
- At Zenith
45 mph (72 km/h) gusting to 60 mph (97 km/h)

125 mph (200 km/h) @ 58° F (15° C)
n/a
Up to 62 mph (100 km/h)

180 mph (290 km/h) @ 58° F (15° C)
200 mph (322 km/h) @ 58° F (15° C)
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