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Data Link Antenna

1295 to 1414 MHz

SKU: 20-40-73

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Data Link Antenna

The 20-40-73 consists of a high strength, low loss cylindrical glass/ epoxy radome containing a vertical array of four co-linearly stacked dipoles combined in such a way as to maximize radiation in the horizontal plane (0° elevation).

The array is centre-fed enabling the antenna to be ground-plane independent.

The entire assembly is foam filled for long term environmental protection. It has an N type (female) connector and a 1 inch diameter metal fitting to enable mast-head mounting.

The top of the antenna has a spigot to locate a reflector element (ordered separately) enabling the antenna to have directivity over a sector of approximately 60°. 

  • Covers Up and Down Data Link requirements
  • Supplied with base spigot for mast head mount
  • Ground Plane Independent
  • Pattern optimized for highest gain at horizon
  • Rugged design for all weather operation
  • At least 50 Watts CW
  • Approximately 5.5 pounds weight
  • Can be adapted for directional pattern with bolton reflector
20-40-73
Model # 20-40-73
Brand Cooper Antennas
Frequency 1295 - 1414 MHz
Gain (typical) +7 dBi average 
VSWR ≤ 2.0:1
Impedance (nominal)  50 Ohms
Power 50 Watts CW
Polarization Vertical
Radiation Patern

Azimuth : omni directional

Elevation : 3dB Beam Width 15° ±3° 

Antenna RF Connector N Female
Height 40 inches (1016mm)
Element Diameter 3 inches (79mm) 
Diameter of Mounting Attachment 2 inches (51mm)
Weight (approx.) 1 inches (25mm) 
Operational Temperature -54°C to +70°C 

Finish

  • Antenna - Urethane lusterless Grey
  • Other finish options are available.
  • Please specify finish required when ordering.
Datasheet:

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