2.4 Meter C240M Mobile Antenna

The General Dynamics SATCOM Technologies lightweight 2.4-meter mobile 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 and back beam mounted on a cable-driven, elevation-over-azimuth positioning system. This results in an antenna with superior stiffness and high performance under wind loading conditions.

 

Features

The unique shape and the accurate reflector surface provide exceptionally low sidelobe and cross-polarization performance well within INTELSAT and EUTELSAT requirements. 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 can be interfaced with most light weight vehicle structures for the purpose of mobile applications.

  • Aluminum/carbon fiber composite construction
    • Precision surface
    • High stiffness
    • Robust design for vehicle mounting
  • High performance
    • Low sidelobes, high E.I.R.P. capability
    • Compliant under operational wind conditions
  • Stow/deployment
    • Low profile
    • Stow position on vehicle
    • Precision alignment

Options

  • Finishes: Standard Ford Polar White, Option Green Fed Std 595 34094 or Desert Sand Fed Std 595 33303 - please specify at order
  • Boom-mounted electronics integration kits
  • Tx waveguide run

Specifications

C-Band 2-Port
Linear Polarized
C-Band 2-Port
Circular Polarized
X-Band 2-Port
Circular Polarized 
Ku-Band 2-Port
Linear Polarized
Ka-Band 2-Port
Circular Polarized
Ka-Band 2-Port Circular Polarized 
Electrical 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
20.200-
21.200
30.000-
31.000
17.700 - 21.200
27.500 - 31.000
Antenna Gain, Midband dBi 38.20 42.00 38.06 42.10 43.00 43.8 47.19 49.00  52.30  55.20  51.30 54.30
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

78 K
68 K
65 K
65 K
  63 K
60 K
56 K
55 K
  143 K
123 K
109 K
101 K
  176 K
149 K
129 K
117 K
 
Pattern Beamwidth (in degrees at midband)
-3 dB, at midband
2.12 1.37 2.09 1.35 1.15 1.05 0.72 0.60 0.40 0.29 0.42 0.29
Cross Polarization
On Axis
Within 1.0 dB BW
30 dB
28 dB
30 dB
28 dB
19.7 dB
19.7 dB
27.3 dB
27.3 dB
18.8 dB
18.8 dB
18.8 dB
18.8 dB
35 dB
27 dB
35 dB
35 dB
24.8 dB
24.8 dB
24.8 dB
24.8 dB
27.3 dB
27.3 dB
27.3 dB
27.3 dB
VSWR 1.30:1
(17.7 dB)
1.30:1
(17.7 dB)
1.30:1
(17.7 dB)
1.30:1
(17.7 dB)
1.30:1
(17.7 dB)
1.30:1
(17.7 dB) 
1.30:1
(16.5 dB) 
1.30:1
(19.0 dB) 
1.30:1
(17.7 dB) 
1.30:1
(17.7 dB) 
1.30:1
(17.7 dB)
1.30:1
(17.7 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
-120 dB

-125 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
Total Power Handling
2.00 kW CW
2.00 kW CW
2.00 kW CW
1.00 kW CW 250 W CW
250 W CW
RF Specifications 975-2837
975-2712
975-4223
975-1575
975-2901
975-5014

 

Mechanical
Antenna Diameter 2.4 meter (94.5 in)
Antenna Type Single offset 
Reflector Construction Carbon fiber, single or 3 segment
Mount Type Elevation over azimuth
Antenna Travel
Elevation 0° to 90° of reflector boresight
Azimuth ±150° continuous standard, ±180° available for additional cost
Polarization
±90°
Stow Height 24 in (61 cm)
Antenna Weight 560 lbs (254 kg) without feed
Integration Capability 150 lbs (68 kg) feed boom mounted, 300 lbs (136 kg) positioner mounted

 

Environmental
WindLoading Ka-Band Ku-Band
Pointing Loss 2 dB Rx Pk 30 mph (48 km/h) gusting to 45 mph (72 km/h) 45 mph (72 km/h) gusting to 60 mph (97 km/h)
Drive 45 mph (72 km/h) gusting to 60 mph (97 km/h) 60 mph (97 km/h) gusting to 75 mph (121 km/h)
Survival
75 mph (121 km/h) any position
75 mph (121 km/h) any position
  Up to 90 mph (145 km/h) at stow
Up to 90 mph (145 km/h) at stow
Operational Temperature -22° to +130° F (-30° to +55° C)
Survival Temperature -40° to +158° F (-40° to +70° C)
Rain (Operational) Up to 4 in/h (10 cm/h)
Rain (Survival) Up to 6 in/h (15 cm/h)
Relative Humidity 0% to 100% with condensation
Solar Radiation 360 BTU/h/ft2 (1000 Kcal/h/m2)
Radial Ice (survival)
1 in (2.5 cm)
Tolerances
 
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.
  • Features

    Features

    The unique shape and the accurate reflector surface provide exceptionally low sidelobe and cross-polarization performance well within INTELSAT and EUTELSAT requirements. 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 can be interfaced with most light weight vehicle structures for the purpose of mobile applications.

    • Aluminum/carbon fiber composite construction
      • Precision surface
      • High stiffness
      • Robust design for vehicle mounting
    • High performance
      • Low sidelobes, high E.I.R.P. capability
      • Compliant under operational wind conditions
    • Stow/deployment
      • Low profile
      • Stow position on vehicle
      • Precision alignment

    Options

    • Finishes: Standard Ford Polar White, Option Green Fed Std 595 34094 or Desert Sand Fed Std 595 33303 - please specify at order
    • Boom-mounted electronics integration kits
    • Tx waveguide run
  • Specifications

    Specifications

    C-Band 2-Port
    Linear Polarized
    C-Band 2-Port
    Circular Polarized
    X-Band 2-Port
    Circular Polarized 
    Ku-Band 2-Port
    Linear Polarized
    Ka-Band 2-Port
    Circular Polarized
    Ka-Band 2-Port Circular Polarized 
    Electrical 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
    20.200-
    21.200
    30.000-
    31.000
    17.700 - 21.200
    27.500 - 31.000
    Antenna Gain, Midband dBi 38.20 42.00 38.06 42.10 43.00 43.8 47.19 49.00  52.30  55.20  51.30 54.30
    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

    78 K
    68 K
    65 K
    65 K
      63 K
    60 K
    56 K
    55 K
      143 K
    123 K
    109 K
    101 K
      176 K
    149 K
    129 K
    117 K
     
    Pattern Beamwidth (in degrees at midband)
    -3 dB, at midband
    2.12 1.37 2.09 1.35 1.15 1.05 0.72 0.60 0.40 0.29 0.42 0.29
    Cross Polarization
    On Axis
    Within 1.0 dB BW
    30 dB
    28 dB
    30 dB
    28 dB
    19.7 dB
    19.7 dB
    27.3 dB
    27.3 dB
    18.8 dB
    18.8 dB
    18.8 dB
    18.8 dB
    35 dB
    27 dB
    35 dB
    35 dB
    24.8 dB
    24.8 dB
    24.8 dB
    24.8 dB
    27.3 dB
    27.3 dB
    27.3 dB
    27.3 dB
    VSWR 1.30:1
    (17.7 dB)
    1.30:1
    (17.7 dB)
    1.30:1
    (17.7 dB)
    1.30:1
    (17.7 dB)
    1.30:1
    (17.7 dB)
    1.30:1
    (17.7 dB) 
    1.30:1
    (16.5 dB) 
    1.30:1
    (19.0 dB) 
    1.30:1
    (17.7 dB) 
    1.30:1
    (17.7 dB) 
    1.30:1
    (17.7 dB)
    1.30:1
    (17.7 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
    -120 dB

    -125 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
    Total Power Handling
    2.00 kW CW
    2.00 kW CW
    2.00 kW CW
    1.00 kW CW 250 W CW
    250 W CW
    RF Specifications 975-2837
    975-2712
    975-4223
    975-1575
    975-2901
    975-5014

     

    Mechanical
    Antenna Diameter 2.4 meter (94.5 in)
    Antenna Type Single offset 
    Reflector Construction Carbon fiber, single or 3 segment
    Mount Type Elevation over azimuth
    Antenna Travel
    Elevation 0° to 90° of reflector boresight
    Azimuth ±150° continuous standard, ±180° available for additional cost
    Polarization
    ±90°
    Stow Height 24 in (61 cm)
    Antenna Weight 560 lbs (254 kg) without feed
    Integration Capability 150 lbs (68 kg) feed boom mounted, 300 lbs (136 kg) positioner mounted

     

    Environmental
    WindLoading Ka-Band Ku-Band
    Pointing Loss 2 dB Rx Pk 30 mph (48 km/h) gusting to 45 mph (72 km/h) 45 mph (72 km/h) gusting to 60 mph (97 km/h)
    Drive 45 mph (72 km/h) gusting to 60 mph (97 km/h) 60 mph (97 km/h) gusting to 75 mph (121 km/h)
    Survival
    75 mph (121 km/h) any position
    75 mph (121 km/h) any position
      Up to 90 mph (145 km/h) at stow
    Up to 90 mph (145 km/h) at stow
    Operational Temperature -22° to +130° F (-30° to +55° C)
    Survival Temperature -40° to +158° F (-40° to +70° C)
    Rain (Operational) Up to 4 in/h (10 cm/h)
    Rain (Survival) Up to 6 in/h (15 cm/h)
    Relative Humidity 0% to 100% with condensation
    Solar Radiation 360 BTU/h/ft2 (1000 Kcal/h/m2)
    Radial Ice (survival)
    1 in (2.5 cm)
    Tolerances
     
    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.
  • Literature

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