Model C180F Motorized Flyaway Antenna

GD Satcom

Model C180F Motorized Flyaway Antenna

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  • Carbon fiber reflector: Lightweight, precision surface and high stiffness
  • Cable-driven positioner: Composite/aluminum construction, lightweight, sturdy
  • Auto-acquisition with DVB reference
  • 24 VDC or 100-240 VAC input
  • High performance: Low sidelobes and high EIRP capability

  • Description
  • Technical Specifications
  • Support Documents

Overview

The General Dynamics SATCOM Technologies lightweight 1.8- meter motorized flyaway antenna is designed for worldwide transmit and receive operation in C, X, Ku and Ka-band. This flyaway antenna consists of a carbon fiber composite reflector, a cable-driven elevation-over-azimuth positioner and an aluminum/CFRP support structure. This results in a low-weight, motorized antenna with superior stiffness and high performance under wind loading conditions.

The unique shape and the accurate reflector surface provide exceptionally low sidelobe and cross-polarization performance meeting INTELSAT and EUTELSAT requirements. Repeatability is maintained with precision registration of the nine reflector segments and the feed support structure. The interchangeable feeds are palletized for quick, easy removal and replacement, allowing the enduser to effectively change frequency bands in the field within minutes. The complete antenna system, including a single feed and a motorized positioner, is packaged in four robust, portable cases.

Details

  • Carbon fiber reflector: Lightweight, precision surface and high stiffness
  • Cable-driven positioner: Composite/aluminum construction, lightweight, sturdy
  • Easy deployment: Two-person assembly in less than 15 minutes, captive hardware and precision alignment
  • Auto-acquisition with DVB reference
  • 24 VDC or 100-240 VAC input
  • High performance: Low sidelobes and high EIRP capability

Electrical³
C-Band 2-Port Linear Polarized Feed
Frequency (GHz)
  Receive
  Transmit
  
3.625 - 4.200
5.850 - 6.425
Antenna Gain at Midband
  Receive
  Transmit
  
35.60 dBi
39.30 dBi
Antenna Noise Temp 5° Elevation 56 K
Antenna Noise Temp 10° Elevation 42 K
Antenna Noise Temp 20° Elevation 37 K
Antenna Noise Temp 40° Elevation 38 K
Pattern -3 dB Beamwidth (in degrees at midband)
  Receive
  Transmit
  
2.84
1.87
Cross Polarization On Axis
  Receive
  Transmit
  
30.0 dB
30.0 dB
Cross Polarization Within 1.0 dB Beamwidth
  Receive
  Transmit
  
26.0 dB
26.0 dB
VSWR
  Receive
  Transmit
  
1.30:1
1.30:1
Port-to-Port Isolation Rx/Tx
  Receive
  Transmit
  
0 dB
-30 dB
Port-to-Port Isolation Tx/Rx
  Receive
  Transmit
  
-70 dB
0 dB
Feed Insertion Loss
  Receive
  Transmit
  
0.20 dB
0.15 dB
Output Waveguide Flange Interface
  Receive
  Transmit
  
CPR-229G
CPR-137G
Total Power Handling Capability 2.00 kW CW
RF Specification 975-3381
C-Band 2-Port Circular Polarized Feed
Frequency (GHz)
  Receive
  Transmit
  
3.625 - 4.200
5.850 - 6.425
Antenna Gain at Midband
  Receive
  Transmit
  
35.30 dBi
39.30 dBi
Antenna Noise Temp 5° Elevation 73 K
Antenna Noise Temp 10° Elevation 59 K
Antenna Noise Temp 20° Elevation 54 K
Antenna Noise Temp 40° Elevation 55 K
Pattern -3 dB Beamwidth (in degrees at midband)
  Receive
  Transmit
  
2.88
1.86
Cross Polarization On Axis
  Receive
  Transmit
  
15.3 dB
17.7 dB
Cross Polarization Within 1.0 dB Beamwidth
  Receive
  Transmit
  
15.3 dB
17.7 dB
VSWR
  Receive
  Transmit
  
1.30:1
1.30:1
Port-to-Port Isolation Rx/Tx
  Receive
  Transmit
  
0 dB
-50 dB
Port-to-Port Isolation Tx/Rx
  Receive
  Transmit
  
-85 dB
0 dB
Feed Insertion Loss
  Receive
  Transmit
  
0.40 dB
0.20 dB
Output Waveguide Flange Interface
  Receive
  Transmit
  
CPR-229G
CPR-137G
Total Power Handling Capability 2.00 kW CW
RF Specification 975-3380
X-Band 2-Port Circular Polarized Feed
Frequency (GHz)
  Receive
  Transmit
  
7.250 - 7.750
7.900 - 8.400
Antenna Gain at Midband
  Receive
  Transmit
  
41.30 dBi
42.00 dBi
Antenna Noise Temp 5° Elevation 67 K
Antenna Noise Temp 10° Elevation 57 K
Antenna Noise Temp 20° Elevation 52 K
Antenna Noise Temp 40° Elevation 54 K
Pattern -3 dB Beamwidth (in degrees at midband)
  Receive
  Transmit
  
1.44
1.33
Cross Polarization On Axis
  Receive
  Transmit
  
21.3 dB
21.3 dB
Cross Polarization Within 1.0 dB Beamwidth
  Receive
  Transmit
  
21.3 dB
21.3 dB
VSWR
  Receive
  Transmit
  
1.30:1
1.30:1
Port-to-Port Isolation Rx/Tx
  Receive
  Transmit
  
0 dB
-110 dB
Port-to-Port Isolation Tx/Rx
  Receive
  Transmit
  
-110 dB
0 dB
Feed Insertion Loss
  Receive
  Transmit
  
0.40 dB
0.40 dB
Output Waveguide Flange Interface
  Receive
  Transmit
  
CPR-112G
CPR-112G
Total Power Handling Capability 5.00 kW CW
RF Specification 975-3125
Ku-Band 2-Port Linear Polarized Feed (Cross-Pol Compensated)
Frequency (GHz)
  Receive
  Transmit
  
10.950 - 12.750
13.750 - 14.500
Antenna Gain at Midband
  Receive
  Transmit
  
44.90 dBi
46.50 dBi
Antenna Noise Temp 5° Elevation 69 K
Antenna Noise Temp 10° Elevation 57 K
Antenna Noise Temp 20° Elevation 50 K
Antenna Noise Temp 40° Elevation 49 K
Pattern -3 dB Beamwidth (in degrees at midband)
  Receive
  Transmit
  
0.95
0.80
Cross Polarization On Axis
  Receive
  Transmit
  
35.0 dB
35.0 dB
Cross Polarization Within 1.0 dB Beamwidth
  Receive
  Transmit
  
27.0 dB
35.0 dB
VSWR
  Receive
  Transmit
  
1.35:1
1.30:1
Port-to-Port Isolation Rx/Tx
  Receive
  Transmit
  
0 dB
-30 dB
Port-to-Port Isolation Tx/Rx
  Receive
  Transmit
  
-85 dB
0 dB
Feed Insertion Loss
  Receive
  Transmit
  
0.30 dB
0.20 dB
Output Waveguide Flange Interface
  Receive
  Transmit
  
WR-75 Flat
WR-75 Flat
Total Power Handling Capability 2.00 kW CW
RF Specification 975-3437
Ka-Band 2-Port Circular Polarized Feed
Frequency (GHz)
  Receive
  Transmit
  
20.200 - 21.200
30.000 - 31.000
Antenna Gain at Midband
  Receive
  Transmit
  
49.10 dBi
52.30 dBi
Antenna Noise Temp 5° Elevation 155 K
Antenna Noise Temp 10° Elevation 133 K
Antenna Noise Temp 20° Elevation 117 K
Antenna Noise Temp 40° Elevation 108 K
Pattern -3 dB Beamwidth (in degrees at midband)
  Receive
  Transmit
  
0.55
0.38
Cross Polarization On Axis
  Receive
  Transmit
  
24.8 dB
24.8 dB
Cross Polarization Within 1.0 dB Beamwidth
  Receive
  Transmit
  
24.8 dB
24.8 dB
VSWR
  Receive
  Transmit
  
1.30:1
1.30:1
Port-to-Port Isolation Rx/Tx
  Receive
  Transmit
  
0 dB
-70 dB
Port-to-Port Isolation Tx/Rx
  Receive
  Transmit
  
-85 dB
0 dB
Feed Insertion Loss
  Receive
  Transmit
  
0.50 dB
0.45 dB
Output Waveguide Flange Interface
  Receive
  Transmit
  
WR-42 Flat
WR-28 Flat
Total Power Handling Capability 0.50 kW CW
RF Specification 975-2985
3 Other feeds available. Contact factory for information.
4 Low axial ratio feed available.
5 Low axial ratio feed available. X-band dual polarization switch available.
(View our PDF Datasheet for more information)
Mechanical
Azimuth Travel ±180°
Elevation Travel 0° to 90°
Polarization Travel ±90° (linear polarization only)
Reflector Structure Carbon fiber composite
Pedestal Structure Aluminum/composite cable-driven azimuth-over-elevation positioner on carbon fiber structural case
Boom Mounted HPA Loading ¹ 60 lbs. (27.2 kg)
Transport Configuration
Component Case 1
  Case Size (L x W x H)
  Total weight (component and case)
  
41.12 x 37.12 x 38.82 in (104.4 x 94.3 x 98.6 cm)
174 lbs (78.9 kg)
Component Case 2
  Case Size (L x W x H)
  Total weight (component and case)
  
30.00 x 30.00 x 28.79 in (76.2 x 76.2 x 73.1 cm)
156 lbs (70.8 kg)
Reflector Case 1
  Case Size (L x W x H)
  Total weight (component and case)
  
37.25 x 27.18 x 19.44 in (94.6 x 69 x 49.4 cm)
79 lbs (35.8 kg)
Reflector Case 2
  Case Size (L x W x H)
  Total weight (component and case)
  
37.38 x 37.38 x 38.43 in (94.9 x 94.9 x 97.6 cm)
163 lbs (73.9 kg)
Total System (feeds cased separately)
  Case Size (L x W x H)
  Total weight (component and case)
  
91.75 ft3 (2.6 m3)
572 lbs (259.5 kg)
Feeds ² Multiple configurations and options available (L, C, X, Ku, Ka or DBS-band)
Environmental
Wind Loading
Operational (with ballast) 30 mph (48 km/h) gusting to 45 mph (72 km/h)
Survival (with tie-downs) 60 mph (96 km/h)
  
Pointing Loss (operational winds) Maximum 2.0 dB peak Rx loss at Ku
Temperature
Operational -22° to +122° F (-30° to +50° C)
Survival -40° to +158° F (-40° to +70° C)
  
Relative Humidity (operational and survival) 0% to 100%
Solar Radiation 360 BTU/h/ft2 (1000 Kcal/h/m2)
Shock and vibration tolerant to conditions encountered during shipment by airplane, ship or truck. Atmospheric tolerant to conditions encountered in coastal regions and/ or heavily industrialized areas.
¹ Contact factory for mounting locations.
² Contact factory for details.

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