Airborne AIS Blade Antenna

160 to 165 MHz

SKU: 21-20-60

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Airborne AIS Blade Antenna

The 21-20-60 is a high performance VHF airborne blade antenna suitable for helicopter and sub-sonic aircraft intended for use with Automatic Identification Systems (AIS).

Mechanical design of the blade comprises an internal printed circuit, foamed-in-place into a high strength epoxy-glass radome fitted to an aluminum alloy base block having an integral mounting flange and finished in urethane lusterless grey.

Structural design ensures high side loading acceptance and long term reliability. Can operate up to 50,000 feet.  

  • Covers AIS Frequencies
  • High Strength Composite Blade with Aluminum Alloy Base Block
  • Single ‘TNC’ Connector
  • Environmental Performance to MIL-STD-810
  • Fully sealed for environmental integrity.
  • DC Grounded
21-20-60
Model # 21-20-60
Brand Cooper Antennas
Frequency 160 MHz to 165 MHz 
Gain (typical)  ≥ +2 dBi
VSWR ≤ 2.0:1 
Impedance (nominal) 50 Ohms
Power 25 Watts CW 
Polarization Essentially Vertical (when mounted vertically) 
Radiation Nominally omni directional in azimuth plane
Antenna RF Connector  TNC Female
Antenna Shell Type Glass loaded thermo plastic blade
Height 7.75 inches (197mm)
Weight 1.8 lbs (0.81kg) 
Side Loading ≥ 4 psi ultimate
Fixing Holes 6 x Ø 0.203 inches (5.16mm) holes 

Finish

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

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