VHF Airborne Antenna (SINCGARS)

30 to 88 MHz

SKU: 21-20-38

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VHF Airborne Antenna (SINCGARS)

The 21-20-38 is an externally mounted airborne VHF antenna operating at 30 to 88 MHz.

A fiberglass rod with an internal element is fitted 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 world-wide military environmental conditions including high vibration, shock and temperature variations. 

  • Covers 30-88 MHz without tuning
  • Very lightweight
  • For helicopter and fixed wing aircraft up to 350 Knots
  • Glass/Epoxy –Aluminum construction
  • Small footprint
  • Meets AS3191 lightning requirements
  • Designed to MIL-STD-810 Environmental Conditions 
21-20-38
Model # 21-20-38
Brand Cooper Antennas
Frequency 30 - 88 MHz 
Gain (typical)  -18dBi @ 30MHz 
VSWR ≤ 2.5:1 
Impedance (nominal) 50 Ohms
Power 50 Watts
Polarization Linear (vertical when vertically mounted) 
Radiation Nominally omni directional in azimuth plane
Antenna RF Connector  TNC Female
Construction High density foam filled epoxy/fibre glass shell set in aluminium alloy base collar  
Height 21.5 inches (546mm) max
Weight 0.55 lb (0.25kg) max 
Side Loading ≥ 8 psi ultimate 
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 0.280 inches (7.1mm). 

Finish

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

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