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UHF Satcom Antenna

225 to 400 MHz

SKU: 20-30-30

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UHF Satcom Antenna

The 20-30-30 is a combined Hi-Lo angle UHF Satcom Antenna designed for installation on military vehicle roof, shelter or housing via a 4 hole "CECOM" mounting plate.

The antenna comprises two co-located elements; a circularly polarized cross-dipole and a linearly polarized broadband monopole. The two elements have separate RF feeds and by manual selection of either, full hemispheric pattern coverage is provided.

The low angle is intended for elevation angles up to about 45° and the high angle for approximately 45° to zenith.

Construction is from rugged fiberglass, foam-filled for structural integrity and prevention of moisture ingress with aluminum alloy dipole elements and base housing.

Both RF connectors are located at the base.  

  • Robust Construction
  • Hemispherical radiation pattern coverage with separate hi and lo angle elements
  • All Weather operation
  • 200 Watts CW Power handling
  • Designed to MIL-STD-810 environmental requirements
  • CECOM 4 hole mounting plate
20-30-30
Model # 20-30-30
Brand Cooper Antennas
Frequency

Lo Angle

Hi Angle

240 - 400 MHz 

225 - 400 MHz

Gain

Lo Angle

Hi Angle

+3 dBiL (Typical)

+8 dBiC (Typical) 

VSWR

Lo Angle

Hi Angle

≤ 3.0:1 

≤ 1.5:1 

 

Impedance (nominal)  50 Ohms
Power 200 Watts
Polarization

Lo Angle

Hi Angle

Linear 

Right Hand Circular (maximum at zenith)

Operational Temperature  -54°C to +71°C  
Antenna RF Connector

Lo Angle

Hi Angle

TNC Female

N Female

Overall height   12.5 inches (318mm)  
Dipole span   20 inches (508mm)  
Weight 2.6 lbs (1.2kg)

Finish

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

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