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Airborne Blade Antenna

225 to 512 MHz

SKU: 21-30-176

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Airborne Blade Antenna

The 21-30-176 is a high performance UHF airborne blade antenna suitable for use on fixed and rotary wing aircraft.

Construction is from a one piece glass loaded thermoplastic moulding intimately bonded onto an aluminum alloy base block which houses the matching circuits and provides for very solid attachment to the airframe via 6 fixing holes.

An internal radiating element is shaped in such a way as to produce minimum VSWR and also to optimize radiation. The antenna assembly is sealed by close cell foam and finished in lusterless black or grey urethane paint. 

  • Covers extended UHF and EPLRS Bands
  • High Strength Composite Blade with Aluminum Alloy Base Block
  • Low Drag
  • Single BNC Connector
  • Designed to meet Environmental Performance to MIL-STD-810 & MIL-T-5422
  • Foamed in place radiating element
21-30-176
Model # 21-30-176
Brand Cooper Antennas
Frequency 225 MHz to 512 MHz 
Gain (typical) +2 dBi average
VSWR ≤ 2.5:1
Impedance (nominal)  50 Ohms
Power 100 Watts CW
Polarization Vertical (when mounted vertically) 
Radiation Patern Omni directional in azimuth plane
Antenna RF Connector BNC Female
Antenna Shell Type Glass loaded thermoplastic blade on aluminum alloy base 
Height 7.75 inches (197mm) 
Weight 1.7 lbs (0.77kg) max
Side Loading  ≥ 5 psi ultimate 
Fixing Holes  6 x Ø 0.203 inch (5.2mm) holes, counter bored Ø 0.4 inches (10.2mm) 

Finish

  • Antenna - Urethane Lusterless Black
  • Base Plate - Unpainted  
  • Other finish options are available.
  • Please specify finish required when ordering.
Datasheet:

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