VSATplus Product Website

General Dynamics SATCOM Technologies 1241 Series 2.4M Ku-Band Tx/Rx Linear Cross Pol Antenna

GD Satcom 1241 Series 2.4M Ku-Band Tx/Rx Linear Cross Pol Antenna System

  • Plate style Feed/OMT mount brackets 5.25” height (4.75″ Clearance) and metric BUC / Waveguide hardware included
  • Feed Support
  • Feed horn and OMT/TRF
  • Reflector: Offset Feed, 4-Piece 0.8 f/d Glass Fiber Reinforced Polyester SMC
  • Mount Type: Azimuth over Elevation
  • 5º to 90º Fine Elevation adjust and +/- 10º Fine Azimuth Adjustment
  • Mast Pipe Requirement: 6” Schedule 40 mast pipe ( 6.63” OD )
  • (Order Optional Feed Stabilizer separately 0800-1469)
  • (ETSI) INTELSAT approvals

GD Satcom is the world’s largest manufacturer of Rx/Tx VSAT antennas. We have the broadest product line in the industry including Receive Only, Rx/Tx and Rural Telephony antenna systems. GD Satcom offers nineteen antenna sizes, 47cm to 4.5M. GD Satcom is the leader in obtaining type certifications and approvals for Intelsat, AsiaSat and Eutelsat. GD Satcom antennas provide the best quality in the market due to the sophisticated, precision SMC compression molding process technology. GD Satcom provides the best value antenna solution to the market with competitive prices, the highest quality products and superb engineering support.


  • Precision Compression molded offset reflector
  • Non-penetrating roof mounts and king posts available
  • Interface kits for all C & Ku-Band RF heads in stock
  • Reflector/Feed electrical anti-icing available
Antenna Size2.4M (96 in.)
Operating Frequency (GHz)

13.75 – 14.50 GHz
10.70 – 12.75 GHz
Antenna Gain at Midband, dBi (± .2dB)

47.40 dBi
49.20 dBi

1.3:1 Max 
1.5:1 Max
Pattern Beamwidth (in degrees at midband)
    -3 dB
    -15 dB

Rx: 0.70° Tx: 0.60°
Rx: 1.60° Tx: 1.40°
Sidelobe Envelope, Co-Pol (dBi)
    100λ / D < θ ≤ 20°
    20° < θ ≤ 26.3°
    26.3° < θ ≤ 48°
    θ > 48°

29 – 25 Logθ dBi
-3.5 dBi
32 – 25 Logθ dBi
-10 dBi (averaged)
Antenna Noise Temperature
    10° Elevation
    20° Elevation
    30° Elevation
    40° Elevation

85 K
78 K
73 K
70 K
Cross Polarization Isolation (Linear) On Axis

>30 dB
>35 dB
Feed Interface

WR 75 or Direct Radio Mounting
Maximum Radio Weight12 Lbs. (5.5 Kg.)
(Optional Feed Stabilizer available for higher radio weight)
Reflector MaterialGlass Fiber Reinforced Polyester SMC
Antenna OpticsPrime Focus, Offset Feed, Four-piece
Mast Pipe Size6” SCH 40 Pipe (6.63” OD) 16.83 cm.
Elevation Adjustment Range5°to 90°Continuous Fine Adjustment
Azimuth Adjustment Range360°Continuous, +/- 10°Fine Adjustment
Mount TypeElevation over Azimuth
Shipping Weight (Total)545 lbs. (248 kg.)
Install (Net) Weight365 lbs. (166 kg.)
Environmental Performance
Wind Loading

50 mph (80 km/h)
125 mph (201 km/h)
Temperature Range (operational)-40°to 140°F (-40°to 60°C)
Rain (operational)1/2” (13mm) / hr
Atmospheric ConditionsSalt, Pollutants and Contaminants as Encountered in Coastal and Industrial Areas
Relative Humidity0 to 100% With Condensation
Solar Radiation360 BTU/h/ft²

General Dynamics SATCOM Technologies 1241 Series Ku-Band Datasheet

General Dynamics SATCOM Technologies 1241 Series Assembly Manual

General Dynamics SATCOM Technologies 1241 Series Tx/Rx Antenna Geometry

Reflector and Feed Electrical Anti-Icing System

Comparison of Series 1251, 1240 and 1241 Antenna Systems

General Dynamics SATCOM Technologies 2.4M – 4 Piece – Ku-Band Antenna Feed System Assembly Manual

General Dynamics SATCOM Technologies 2.4M 1241 Series Ku-Band Antenna Type Approval

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