2.4 Meter C240FW High Wind Flyaway Antenna

The General Dynamics SATCOM Technologies 2.4-meter motorized transportable antenna is designed for worldwide transmit and receive operation in C, X, Ku and Ka-band. This mobile antenna consists of a carbon fiber composite reflector, a jack-driven elevation positioner, a gear- driven azimuth positioner and an aluminum support structure. This results in a medium-weight, motorized antenna with superior stiffness and high performance under high wind loading conditions.

 

Product Details

Features

The unique shape and the accurate reflector surface provide exceptionally low sidelobe and cross-polarization performance well within 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, can be packaged in nine robust, portable cases.

  • Carbon fiber reflector provides lightweight, precision surface and high stiffness
  • Jack/gear-driven positioner is of carbon fiber/aluminum construction and is lightweight and sturdy
  • Easy deployment -- two-person assembly in less than 30 minutes, captive hardware, precision alignment
  • INTELSAT type approval pending, EUTELSAT and MIL-188-164A compliant
  • High performance, low sidelobes, high EIRP capability

Options

  • Feeds (four-port, Co-Pol, CP/LP switchable, DBS, Ka-band, L-band)
  • Finishes: Standard Ford Polar White reflector and feed
  • Options - Green Fed Std 595 34094 or Desert Sand Fed Std 595 33303
  • Pedestal/T-head riser for boom mounting options
  • Lightning protection/grounding
  • Transit cases
  • Motorized polarization drive
  • IFL cables
  • Auto-acquire tracking receiver
  • Low passive intermodulation capable
  • Troposcatter capable

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
(Cross-Pol Compensated)
Ku-Band 4-Port Circular
Polarized Feed
Ka-Band 4-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 55.30
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
  147 K
126 K
111 K
102 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 0.39 0.28
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
27.3 dB
27.3 dB
27.3 dB
27.3 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

    0.75 dB
0.75 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

-85 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
 0.35 dB  0.30 dB
Output Waveguide Flange Interface
CPR-229G
CPR-137G
CPR-229G
CPR-137G
CPR-112G
CPR-112G
WR-75
WR-75
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
RF Specification
975-2837
975-2712
975-1701
975-1575
975-4418
975-4418

 

Mechanical
Azimuth Travel ±120° (consult factory for CFE equipment mounting)
Elevation Travel 0° to 90° (consult factory for CFE equipment mounting)
Polarization Travel ±90° (linear polarization only)
Reflector Structure Carbon fiber reinforced polymer (CFRP)
Pedestal Structure Aluminum alloy
Boom Mounted HPA Loading ¹ 120 lbs. (54 kg), not including feed assembly (electronics may limit travel)
Antenna Weight
Reflector (9-piece) 120 lbs. (54 kg)
Pedestal Assembly 589 lbs. (267 kg)
Packaging Consult factory for details
Feed Weights
Ka-Band Feed 10 lbs. (4.5 kg)
Ku-Band Feed 15 lbs. (6.8 kg)
X-Band Feed
26 lbs. (11.8 kg)
X-Band Low PIM Feed
46 lbs. (20.9 kg)
C-Band CP/LP Feed
25 lbs. (11.3 kg)
C-Band CP Feed
30 lbs. (13.6 kg)

 

Environmental
Wind Loading Operational (no ballast)
25 mph (40 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)
Wind Loading Survival (stowed) 90 mph (145 km/h)
Pointing Loss (operational winds) Maximum 2.0 dB peak Rx loss (performance dependent on controller capability)
Operational Temperature -22° to +122° F (-30° to +50° C)
Survival (stored) 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 tolerant to conditions encountered during shipment by airplane, ship or truck. Atmospheric tolerant to conditions encountered in coastal regions and/
or heavily industrialized areas.