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High Power Broadband Airborne Blade Antenna

30 to 512 MHz

SKU: 21-50-97

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High Power Broadband Airborne Blade Antenna

The 21-50-97 is vertically polarized, omni-directional antenna, compatible with all popular airborne radios operating within the 30 to 512 MHz frequency range. The antenna can handle 200 Watts of power, requires no external tuning and is designed as a high power, extended frequency coverage antenna to operate with latest JTRS radios.

This wideband multifunction antenna is particularly suited to tactical military communications and jamming. 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
  • Frequency Selective Passive Matching Network
  • Fully Foamed for High Environmental Integrity
  • Aluminum Alloy Retaining Collar Accepts High Side Loading
  • 200 Watts Power Handling
  • Drop-on Replacement for AT-1108 and AS3191
  • Complies with MIL-STD-810
  • Meets Lightning Protection requirements of AS3191
21-50-97
Model # 21-50-97
Brand Cooper Antennas
Frequency

30 - 88 MHz,

108 - 174 MHz

225 - 400 MHz 

Gain

-22.5 dBi @ 30 MHz rising approximately linearly to +2 dBi average thru UHF

Gain is equal or better than AS3191 as defined in MIL-DTL-85670B

VSWR ≤ 2.75:1 
Impedance (nominal) 50 Ohms for both ports 
Power

200 Watts CW 

Polarization

Vertical

Radiation

Azimuth : Omni-directional

Elevation : As stub 

Antenna RF Connector

TNC Female

Antenna Shell Type High density foam filled epoxy/fiber glass shell set in aluminum alloy base collar 
Height 15.5 inches max (394mm) 
Weight 4.5 lbs max (2.05 kg) 
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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