Passive VHF Airborne Blade Antenna

74 to 88 MHz

SKU: 21-20-02

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Passive VHF Airborne Blade Antenna

The 21-20-02 is a vertically polarized, omni-directional antenna, compatible with radios operating within the 74 to 88 MHZ frequency range. This antenna can handle up to 50 Watts of power and requires no external tuning.

The antenna is constructed using materials and processes that allow operation from –54 to +100ºC and the design comprises an internal contoured element feeding an external top loading bar to optimize gain over the designated frequency band. The entire antenna assembly is filled with closed cell foam to prevent long term moisture ingress and provide high reliability in World wide conditions of service. 

  • High Strength Broadband Top-loaded Blade Antenna
  • Passive Matching Network requires no external tuning
  • Fully Foamed for Environmental Integrity
  • Complies with MIL-STD-810
  • DC Grounded
  • Gain optimized in 74 to 88 MHz 
21-20-02
Model # 21-20-02
Brand Cooper Antennas
Frequency 74 - 88 MHz 
Gain (typical)  ≥ -5 dBi
VSWR ≤ 2.5:1 
Impedance (nominal) 50 Ohms
Power 50 Watts CW 
Polarization Vertical
Radiation

Azimuth : Omni-directional (nominal)

Elevation : See chart below 

Antenna RF Connector  TNC Female
Antenna Shell Type aluminum alloy top-tube set in aluminum alloy base
Height 11.65 inches (295mm) Max 
Weight 4.95 lbs (2.25 kg) 
Base Plate Shape Tear drop
Antenna 2.25 inch max (57mm) 
Fixing Holes  10 x Ø 0.208 inch (5.3mm) holes 

Finish

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

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