TACAN/IFF DIPOLE ANTENNA

960 MHz to 1216 MHz

SKU: 21-40-10

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IFF Dipole Antenna

The 21-40-10 is a small diameter airborne L-Band dipole antenna, principally intended for helicopters installations where its broad elevation beam provides excellent omni-directional radiation coverage.

Designed as an end fed “bazooka” dipole, the antenna uses a lightweight fiberglass body with foamed-in-place feed network and an aluminum alloy structural radiating element. The element is directly grounded to provide lightning protection. Being a dipole, the antenna is largely independent of the shape and size of surface upon which it is mounted.

The antenna is secured to the airframe with 4 8-36 UNF countersunk screws. 

  • Small cross-sectional profile
  • Lightweight
  • Designed to MIL-STD-810 environmental requirements
  • Excellent IFF and Tacan (LINK16) radiation patterns
  • Fully environmentally sealed
  • N-type female connector
  • Designed for Helicopter Installations
  • Radiation pattern relatively independent of ground plane
21-40-10
Model # 21-40-10
Brand Cooper Antennas
Frequency 960 to 1216 MHz
Gain Typically +2 dBi 
VSWR

≤ 1.5:1 1030 & 1090 MHz

≤ 2:1 960 - 1216 MHz 

Impedance (nominal) 50 Ohms
Power 100 Watts max
Polarization Vertical
Radiation Omni-directional in azimuth, similar to λ/4 monopole in elevation. 
Antenna RF Connector  N Female
Operational Temperature  -54°C to +70°C 
Height 6.6 inches (168mm) 
Element Diameter  0.71 inches (18mm)
Diameter of fixing plate  1.85 inches (47mm)
Weight 0.4 lbs (0.18kg)

Finish

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

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