UHF/MUOS Satcom & LOS Antenna

240 to 385 MHz

SKU: 21-30-91XP

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UHF/MUOS Satcom & LOS Antenna

Satcom on-the-move requires antenna pattern coverage to be as near to hemispherical as possible. The CAL 21-30-91XP 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 21-30-91XP is suitable for “bolt-on” use on helicopters, sub-sonic aircraft, ships, land vehicles and shelters.

A version of this antenna with a magnetic mounting base for quick deployment on ferrous roofed vehicles or shelters is also available. 

  • 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 
21-30-91XP
Model # 21-30-91XP
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 inches max (330mm) 
Dipole span  13 inches (330mm)
Weight 2 lbs (0.90kg) 
Fixing Holes 4x 10-32 UNF (M5) or similar screws

Finish

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

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