VHF/FM Airborne Antenna SINCGARS/BOWMAN

30-88 MHz

SKU: 21-20-36

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VHF/FM Airborne Antenna SINCGARS/BOWMAN

The 21-20-36 is an externally mounted airborne VHF/FM antenna operating over the SINCGARS / BOWMAN frequency band of 30-88 MHz.

The radiating element comprises a hard drawn alloy tube inserted into an aluminum base which contains foamed-in place matching circuits capable of handling up to 50 Watts power.

The method of construction provides protection from military environmental conditions including high vibration, shock and temperature variations. 

  • Covers 30-88 MHz without tuning
  • Lightweight and Low Profile
  • Only 12” stand off height
  • For helicopter and fixed wing aircraft up to 250 Knots
  • Glass/Epoxy –Aluminum construction
  • Small footprint
  • Designed to MIL-STD-810 Environmental Conditions
  • 50 Watts power handling 
21-20-36
Model # 21-20-36
Brand Cooper Antennas
Frequency 30 - 88 MHz 
Gain (typical)  -23 dBi @ 30 MHz rising to -8 dBi @ 88 MHz 
VSWR ≤ 3:1 
Impedance (nominal) 50 Ohms
Power 50  Watts
Polarization Nominally Vertical
Radiation Nominally omni directional in azimuth plane 
Antenna RF Connector  BNC Female
Construction Hard drawn aluminum alloy tube in aluminum base 
Height 12 inches (305 mm) 
Weight 0.44 lbs (200 g) 
Base Plate Shape Tear drop
Fixing Holes 4 x Ø 0.170 inches (4.3mm) ±0.005 inches (0.127mm) holes, counter sunk at 100° Ø 0.320 inches (8.1mm).

Finish

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

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