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P25 Airborne Blade Antenna

760 to 870 MHz

SKU: 21-40-45-3

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P25 Airborne Blade Antenna

The 21-40-45-3 is a UHF airborne blade antenna designed for high performance aircraft and intended for P25 applications. It is a direct footprint replacement for AT256 UHF Blade antennas.

Electrical design is based on a 2-dimensional, shunt-grounded discone which is of high efficiency and provides an omnidirectional azimuthal radiation.

Mechanical design uses an advanced, glass-loaded thermoplastic radome with an integral radiating element, all foamed-in-place for structural and environmental integrity.

The blade has an aluminum alloy baseplate with a centrally mounted, N-type female coaxial connector. 

  • Suitable for P25 communication links
  • Low profile, diamond shaped blade
  • Designed to meet MIL-STD-810
  • Fully environmentally sealed
  • Grounded element for lightning protection
  • Lossless matching - high RF efficiency
  • Omnidirectional radiation pattern
21-40-45-3
Model # 21-40-45-3
Brand Cooper Antennas
Frequency 760 - 870 MHz 
Gain (average)  ≥3 dBi 
VSWR ≤ 1.75:1 
Impedance (nominal) 50 Ohms
Power 50 Watts CW 
Polarization Vertical
Radiation Omni-directional in azimuth, similar To stub in elevation
Antenna RF Connector  N Female
Antenna Shell Type Glass loaded thermoplastic blade 
Element Height 6 inches (152.5mm) max
Weight 0.9 lbs (0.4 Kg) max
Side Loading ≥ 6 psi ultimate
Base Plate Shape Diamond shape
Fixing Holes 6 x Ø 0.203 inch (5.2mm) holes, counter bored Ø 0.43 inches (10.9mm) 

Finish

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

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