2.4 Meter C240FM Manual Flyaway Antenna

The General Dynamics SATCOM Technologies lightweight 2.4- meter flyaway antenna is designed for worldwide transmit and receive operation in C, X and Ku-band. This portable antenna consists of a carbon fiber composite reflector and aluminum support structures. This results in a low-weight 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 well within INTELSAT and EUTELSAT requirements. Repeatability is maintained with precision registration of the nine reflector segments and the feed support structure. The complete antenna system, including a single feed, is packaged in nine robust portable cases.

  • Carbon fiber reflector
  • Lightweight, precision surface and high stiffness
  • Easy deployment
  • Two-person assembly, captive hardware, precision alignment
  • INTELSAT type approved, EUTELSAT compliant
  • High performance
  • Low sidelobes and high E.I.R.P. capability

Options

  • Standard color Ford Polar White with gray (powder-coated structure)
  • Options Green Fed Std 595 34094 or Desert San Fed Std 595 33303
  • Please specify at order
  • Feeds: Four-port, Co pol, CP/LP switchable, DBS, Ka-band
  • Motorized polarization
  • Az/El motorized, tracking using pulse sensors or resolvers

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
Electrical (3) 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
Antenna Gain, Midband dBi  38.20  42.00  38.06  42.10  43.50  44.20
 47.19  49.00  47.10  48.80
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
 
Typical G/T at 4.000 and 7.5 GHz, 20° Elevation, Clear Horizon
C-Band 35° K LNA
X-Band 55° K LNA
Typical G/T at 4.0 and 10.95 GHz, 10° Elevation, Clear Horizon
C-Band 35° K LNA
C-Band 50° K LNA
Ku-Band 70° K LNA
Ku-Band 90° K LNA
Typical G/T at 11.850 GHz, 20° Elevation, Clear Horizon
Ku-Band 70° K LNA
Ku-Band 90° K LNA
19.5 dB/K







18.8 dB/K
18.1 dB/K





  23.2 dB/K








 



25.4 dB/K
24.7 dB/K
 







25.7 dB/K
25.1 dB/K
 
Pattern Beamwidth (in degrees at midband)
-3 dB Beamwidth
2.12 1.37 2.09
1.35 1.12 1.03 0.72 0.60 0.71 0.60
Sidelobe Performance
For Angle A from 2° to 30° (typical)

For Angle A beyond
mainbeam to 20°
For Angle A from 30° to 140°
For Angle A from 140° to 180°



29-25 Log A






29-25 Log A






29-25 Log A





29-25 Log A





29-25 Log A





29-25 Log A



24-25 Log A (Az plane)
29-25 Log A (in general)




24-25 Log A (Az plane)
29-25 Log A (in general)




24-25 Log A (Az plane)
29-25 Log A (in general)


-10 dBi
0 dBi

24-25 Log A (Az plane)
29-25 Log A (in general)


-10 dB
0 dBi
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
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
Axial Ratio 1.81 dB
0.75 dB
1.50 dB
1.50 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
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
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
Total Power Handling Capability
2.00 kW CW
2.00 kW CW
2.00 kW CW
1.00 kW CW
2.00 kW CW
RF Specification
975-2837
975-2712
975-1701
975-1575
975-1708

 

Mechanical
Azimuth Travel ±360° coarse, ±15° fine adjustment
Elevation Travel 0° - 90° with fine adjustment
Polarization Travel ±95° (linear polarization), optional motorized polarization available
Reflector Structure Carbon fiber composite
Pedestal Structure Aluminum
Shipping Specifications
Case Contents Case Size (L x W x H) Component Weight (lbs. (kg))
1 Pedestal, Az Axis Strut 35” x 29” x 24” 57 (25.9)
2 T-Head, Feed Mounting Plate 39” x 36” x 12” 37 (16.8)
3 Outrigger, Feed Boom 60” x 20” x 12” 63 (28.6)
4 Outrigger, Feed Boom 60” x 20” x 12” 60 (27.2)
5 Reflector Panels 1, 2 and 6
39” x 36” x 12”
54 (24.5)
6 Reflector Panels 3, 4 and 5
39” x 36” x 12”
36 (16.3)
7 Reflector Panels 7, 8 and 9
39” x 36” x 12”
35 (15.9)
8 Upper and Lower Backspine
38” x 37” x 24”
46 (20.9)
Total System
8 Cases
388 (176)
Ku-Band LP Feed (includes space for C-band LP feed)
34” x 28” x 24”
15 (6.8)
X-Band CP Feed
34” x 28” x 24”
34 (15.4)
C-Band CP Feed
34” x 28” x 24”
30 (13.6)
Finish (standard)
White reflector and gray (powdercoated) positioner assembly

 

Environmental
Wind Loading Operational (with ballast) 30 mph (48 km/h) gusting to 45 mph (72 km/h)
Wind Loading Survival (with tie-downs) 60 mph (97 km/h) gusting to 75 mph (121 km/h)
Pointing Loss 2 dB peak at Ku-band (Rx) with control system
Operational Temperature -22° to +130° F (-30° to +55° 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