2.4 Meter C240FA Motorized Flyaway Antenna

The General Dynamics SATCOM Technologies lightweight 2.4-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.

 

Product Details

Features

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 end-user 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 eight robust, portable cases.

  • 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. No tools required for assembly.
  • Auto-acquisition with DVB reference
  • 24 VDC or 100-240 VAC input
  • High performance: Low sidelobes and high EIRP capability - FCC, ITU, DISA, ARSTRAT sidelobe compliant

Options

  • Finishes
    • Standard Ford Polar White reflector / feed
    • Options Green Fed Std 595 34094 or Desert Sand Fed Std 595 33303
  • Feeds
    • Options 4-port, Co-Pol or CP/LP switchable
    • Bands L, C, X, Ku, DBS and/or Ka
  • Controller
    • Options Acquisition DVB and/or Beacon Receiver
    • Spectrum Analyzer display feature
  • Integration
    • SSPB and/or LNB
    • Specify at time of order

Specifications

C-Band 2-Port Linear Polarized Feed
C-Band 2-Port Circular
Polarized Feed
X-Band 2-Port Circular
Polarized Feed
Ku-Band 2-Port
Linear Polarized Feed
Ku-Band 4-Port Circular
Polarized Feed
Ka-Band 2-Port
Circular Polarized 
Electrical (3) Receive Transmit 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
7.250 -
7.750
7.900 -
8.400
10.950 -
12.750
13.750 -
14.500
10.950 -
12.750
13.750-
14.500
20.200-
21.200
30.000-
31.000
Antenna Gain, Midband dBi 38.20 42.00  38.06 42.10  43.50  44.20
 47.19  49.00  47.10 48.80 52.30 55.20
Antenna Noise Temperature
5° Elevation
10° Elevation
20° Elevation
40° Elevation
49 K
38 K
33 K
34 K
  51 K
50 K
49 K
48 K

65 K
55 K
51 K
52 K
  63 K
60 K
56 K
55 K
  85 K
75 K
69 K
68 K
  143 K
123 K
109 K
101 K
 
Pattern Beamwidth (in degrees at midband)
-3 dB, at midband
2.12
1.37 2.09 1.35 1.12 1.03 0.72 0.60 0.71 0.60 0.40 0.29
Cross Polarization Isolation
On Axis
Within 1.0 dB beamwidth
30.0 dB
28.0 dB
30.0 dB
28.0 dB
19.7 dB
19.7 dB
27.3 dB
27.3 dB
21.3 dB
21.3 dB
21.3 dB
21.3 dB
35.0 dB
27.0 dB
35.0 dB
35.0 dB
35.0 dB
27.0 dB
35.0 dB
35.0 dB
24.8 dB
24.8 dB
24.8 dB
24.8 dB
VSWR  1.30:1  1.30:1  1.30:1  1.30:1  1.30:1  1.30:1  1.35:1  1.25:1  1.35:1  1.30:1  1.30:1  1.30:1
Axial Ratio 1.81 dB
0.75 dB 1.50 dB
1.50 dB

    1.00 dB
1.00 dB
Port to Port Isolation
- Rx/Tx (Rx frequency)
- Tx/Rx (Tx frequency)

0 dB
-60 dB

-30 dB
0 dB

0 dB
-100 dB

-50 dB
0 dB

0 dB
-110 dB

-110 dB
0 dB

0 dB
-85 dB

-30 dB
0 dB

0 dB
-85 dB

-50 dB
0 dB

0 dB
-85 dB

-50 dB
0 dB
Feed Insertion Loss
0.15 dB
0.15 dB
0.40 dB
0.20 dB
0.40 dB
0.40 dB
0.30 dB
0.20 dB
0.60 dB
0.45 dB
 0.30 dB  0.30 dB
Output Waveguide Flange Interface
CPR-229G
CPR-137G
CPR-229G
CPR-137G
CPR-112G
CPR-112G
WR-75 Flat
WR-75 Flat
WR-75 Flat
WR-75 Flat
WR-42
WR-28
Total Power Handling Capability
2.00 kW CW
2.00 kW CW
2.00 kW CW
1.00 kW CW
2.00 kW CW
250 W CW
RF Specification
975-2837
975-2712
975-1701
975-1575
975-1708
975-2901

 

Mechanical
Azimuth Travel ±120°
Elevation Travel 0° to 90°
Polarization Travel ±90° (linear polarization), optional motorized polarization available
Reflector Structure Carbon fiber composite
Pedestal Structure Aluminum/carbon fiber composite/cable drive elevation over azimuth positioner

 

Environmental
Wind Loading Operational (no ballast)
20 mph (32 km/h) gusting to 30 mph (48 km/h)
Wind Loading Operational (with ballast) 45 mph (72 km/h) gusting to 60 mph (97 km/h); antenna must be driven to stow position (90° elevation)
Pointing Loss (operational winds) Maximum 2.0 dB peak loss; performance dependent on controller
Operational Temperature -22° to +122° F (-30° to +50° C)
Survival Temperature -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 As encountered during shipment by commercial air, sea or land
Corrosive Atmosphere
As encountered in coastal regions and/or heavily industrialized areas