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Broadband Airborne Blade Antenna

100 to 530 MHz

SKU: 21-50-99

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Broadband Airborne Blade Antenna

The 21-50-99 is vertically polarized, omni-directional antennas, compatible with all popular airborne radios operating within the 100 to 530 MHz frequency range. The antenna can handle 75 Watts of power and requires no external tuning.

This wideband multifunction antenna developed by Cooper Antennas Ltd is particularly suited to tactical military communications. Rugged design ensures reliability in world wide conditions of service on aircraft operating at speeds up to Mach 0.95.

Use of a surface deposited radiating element optimizes efficiency and the radiating element is DC grounded for static protection..

  • High Strength Broadband Blade Antenna
  • Frequency Selective Matching Network
  • Fully Foamed to Provide High Environmental Integrity
  • Aluminum Alloy Retaining Collar Accepts High Side Loading
  • Designed to MIL-DTL-85670B Specification
  • Drop-on Replacement for AT-1108
  • Complies with MIL-STD-810
  • Meets Lightning protection requirements of AS3191 
21-50-99
Model # 21-50-99
Brand Cooper Antennas
Frequency

100 - 530 MHz

Gain

100 MHz ≥ -4.0 dBi

108 MHz ≥ -3.0 dBi

130 MHz ≥ -3.0 dBi

174 MHz ≥ 0 dBi

225 MHz ≥ +2.5 dBi

300 MHz ≥ +3.0 dBi

400 MHz ≥ +4.0 dBi

530 MHz ≥ +2.0 dBi

VSWR

100 - 174 MHz ≤ 2.5:1

225 - 400 MHz ≤ 2.25:1

400 - 450 MHz ≤ 2.5:1

450 - 530 MHz ≤ 3.0:1

Impedance (nominal) 50 Ohms
Power

75 Watts CW 100 - 530 MHz

Polarization

Vertical

Radiation

Azimuth : Omni-directional

Elevation : As stub 

Antenna RF Connector

TNC Female

Antenna Shell Type High density foam filled epoxy/fiberglass shell set in aluminum alloy base collar
Height 14.65 inches (372mm) max
Weight 3.5 lbs (1.6kg) 
Side Loading  ≥ 8 psi ultimate 
Base Plate Shape Tear drop 
Fixing Holes 6 x Ø 0.234 inches (5.9mm) holes, counter bored top side Ø 0.39 inches (9.9mm)

Finish

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

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Datasheet:

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