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Ultra Wide-band VHF/UHF Airborne Blade Antenna

30 to 2000 MHz

SKU: 21-50-100A

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Ultra Wide-band VHF/UHF Airborne Blade Antenna

The 21-50-100A is a vertically polarized, omni-directional antenna, compatible with all popular airborne radios operating within the 30 to 2000 MHz frequency range. This antenna can handle up to 50 Watts of power and requires no external tuning.

This wideband, multi-function antenna developed by Cooper Antennas Ltd is particularly suited to tactical military communications. Rugged design ensures reliability in world wide conditions of service on helicopters and subsonic aircraft.

Use of a top loading disc increases gain in VHF whilst not corrupting higher frequencies. Unique element shaping preserves elevation pattern throughout frequency band. 

  • High Strength Broadband Top Discloaded Blade Antenna
  • Requires no external tuning
  • Fully Foamed for High Environmental Integrity
  • Suitable for AN/ARC-182, AN/ARC210, ARC 231 and Similar MultiMode Radios
  • Complies with MIL-STD-810
  • Footprint drillings compatible with Chelton 12-190 Series 
Model # 21-50-100A
Brand Cooper Antennas

30 - 2000 MHz  


30 MHz -28 dBi

88 MHz -7 dBi

108-137 MHz -0.5 dBi average

138-174 MHz +1.0 dBi average

225-300 MHz +2.0 dBi average

301-512 MHz +1.0 dBi average

960-2000 MHz 0 dBi average 


≤ 2.5:1

Impedance (nominal) 50 Ohms

50 Watts CW




Azimuth : Omni-directional

Elevation : As stub 

Antenna RF Connector

TNC Female

Antenna Shell Type High density foam filled epoxy/fiber glass shell with aluminum alloy top-plate set in aluminum alloy base.
Height 13 inches (330 mm) 
Weight 4.1 lbs (1.86 kg)
Base Plate Shape Tear drop 
Fixing Holes 10 x Ø 0.208 inch (5.3mm) holes


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



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