C-Band (THC)

The General Dynamics SATCOM Technologies 16.4-meter antenna delivers exceptional performance for transmit/ receive and receive only applications in L through Ku-band frequencies. This antenna offers a reflector design that incorporates precision-formed panels, truss radials and hub assembly. 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.

  • Fully interchangeable reflector components with aluminum reflector panels and galvanized steel backup structure
  • Designed for 1.5 to 15 GHz operation, meeting FCC and ITU-RS-580 requirements
  • Galvanized steel elevation over azimuth pedestal with jackscrews
  • Survives 125 mph winds in any position

 

Product Details

Features

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 and ITU-RS-580 sidelobe specifications and Intelsat (A) and Eutelsat requirements.

Options

  • L, S, C, X, Ku-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
  • Packing for sea and air transport
  • Turnkey installation and testing or assistance

Upgrades

  • X-band low PIM reflector/feed configurations
  • Bullgear azimuth travel
  • High wind configuration
  • Low operating temperatures
  • High power configurations

Specifications

C-Band 4-Port Linear Polarized
C-Band 4-Port Circular Polarized
Ext. C-Band 4-Port Linear Polarized
Ext. C-Band 4-Port Circular Polarized
C-Band 4-Port CP/LP Switchable
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
3.400 -
4.200
5.850 -
6.650
3.625 -
4.200
5.850 -
6.425
Antenna Gain, Midband dBi (2) 55.10 59.00 55.20 58.80 55.20 59.00
54.80 58.80 55.00 58.80
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
0.30°
0.63°
0.19°
0.40°
0.29°
0.61°
0.19°
0.40°
0.29°
0.61°
0.19°
0.40°
0.31°
0.65°
0.19°
0.40°
0.30°
0.63°
0.19°
0.40°
Antenna Noise Temperature (K)
5° Elevation
10° Elevation
20° Elevation
40° Elevation

53
44
38
35

58
49
43
41
 
57
48
42
40
 
64
54
49
46
 
63
54
48
46
 

Typical G/T (dB/K) (3) - Midband, 35 K LNA

36.5
36.3 36.3 35.3 35.5 (10° elevation)
Axial Ratio (dB)
 0.50  0.50 0.51 0.51 0.51
0.51
Power Handling (total)   10 kW CW   10 kW CW   10 kW CW   10 kW CW   10 kW CW
Cross Polarization Isolation (dB)
On Axis
Within 1.0 dB beamwidth

35.0
30.0

35.0
30.0

30.8
30.8

30.8
30.8

35.0
30.0

35.0
30.0

30.7
30.7

30.7
30.7

30.7/35.0
30.7/35.0

30.7/35.0
30.7/35.0
Port to Port Isolation (dB)
- Rx/Tx (Rx frequency)
- Tx/Rx (Tx frequency)
- Rx/Rx, Tx/Tx (CP mode)
- Rx/Rx, Tx/Tx (LP mode)
0
-85

30
-30
0

30
0
-85
20
-70
0
23
0
-85

30
-70
0

30
0
-30
17
-30
0
17
0
-30
19
30
-30
0
19
30
Sidelobe Performance Meets FCC 25.209, Intelsat or ITU-RS-580 Meets Intelsat or ITU-RS-580
RF Specifications 975-1365
975-1237
975-1792
975-1924
975-2490

 

16.4 meters (53.8 feet)
Mechanical/Environmental (4) Turning Head Pedestal (TH) Turning Head - Full Motion (TH-BG) High Wind Turning Head Pedestal (TH-HW)
Antenna Diameter
Antenna Type Cassegrain design
Reflector Construction 40 precision-formed aluminum panels with heat-diffusing white paint, galvanized steel back-up structure
Hub Dimensions 86 in (218 cm) OD, 55.5 in (141 cm) depth
Mount Configuration Elevation over azimuth pedestal, constructed of galvanized steel
Drive Type
Azimuth Travel
Elevation Travel
Machine jack screws
205° (3 segments @ 85°)
0 to 90° continuous
Machine jack screw (EL), gear drive (AZ)
205° continuous
0 to 90° continuous 
Machine jack screws
205° (3 segments @ 85°)
0 to 90° continuous
Foundation (L x W x D)
Concrete
Reinforcing Steel
31.5 x 31.5 x 3.5 ft (9.6 x 9.6 x 1.0 m)
128.6 yds³ (98.3 m³)
14,575 lbs. (6,611 kg)
36.5 x 36.5 x 3.5 ft (11.1 x 11.1 x 1.0 m)
173 yds³ (132.3 m³)
16,838 lbs. (7,638 kg)
Shipping Containers One 40 ft flatrack, four 40 ft open top, 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)
150 mph
Up to 60 mph (97 km/h)

135 mph (217 km/h) @ 58° F (15° C)
180 mph (290 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