UHF/MUOS Satcom and LOS Antenna

240 to 385 MHz

SKU: 21-30-44

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UHF/MUOS Satcom and LOS Antenna

Satcom on-the-move requires antenna pattern coverage to be as near to hemispherical as possible. The CAL 21-30-44 utilizes a pair of quadrature connected UHF “droopy dipoles” with geometry arranged to maintain greater than 0 dBiC gain beyond a 120° cone over the full 240-385 UHF Satcom/MUOS band. This Antenna can also be used for Transmit and Receive Line of Sight (LOS) communications in UHF.

It is constructed of rugged fiberglass/epoxy with aluminum alloy dipole elements and base housing. The antenna is foam filled for structural integrity and prevention of moisture ingress. The 21-30-44 is suitable for “bolt-on” use on helicopters and fixed-wing aircraft up to 350 knots. 

  • Suitable for helicopter, vehicular, fixed and mobile applications
  • Covers UHF Satcom and MUOS as well as UHF Line of Sight (LOS)
  • All Weather operation
  • Wide Angle pattern coverage
  • 200 Watts CW Power handling
  • Designed to MIL-STD-810 environmental requirements
21-30-44
Model # 21-30-44
Brand Cooper Antennas
Frequency 240 - 385 MHz 
Gain

+6 dBiC typical at zenith (Satcom)

≥0 dBi UHF LOS 

VSWR ≤ 1.5:1 
Impedance (nominal) 50 Ohms
Power 200 Watts max 
Polarization

Right Hand Circular (at zenith) - Satcom

Vertical - LOS 

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

 

Height 13.6 inches max (346mm) 
Dipole span 13 inches (330mm) max 
Weight 2.4 lbs (1.1kg) 
Fixing Holes 8 holes 0.208 - 0.234 dia. Inches (5.28 - 5.94mm)

Finish

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

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