VHF/FM Antenna

135 - 175 MHz

SKU: 21-20-165

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VHF/FM Antenna

The 21-20-165 is a unique, wide band VHF antenna comprising a light gauge aluminum tube moulded into an insulator containing proprietary matching circuits producing an operating frequency of 135-175 MHz. This design is installed with a single hole skin cut out and secured from the inside with a 5/8 UNF nut. The antenna is DC Grounded for lightning (LITS) and p-static protection.

The antenna is filled with closed cell foam and fully sealed for very light weight and long term reliability. It is intended for helicopters and fixed wing aircraft operating up to 250 knots.  

  • Extremely light weight
  • Wide VHF Bandwidth
  • Single hole fixing
  • Covers full VHF/FM maritime and Sonobuoy band
  • Environmental Design to DO160E including lightning indirect effects (LITS)
  • Fully sealed and foam filled
  • Only 10.5" height
  • DC Grounded 
21-20-165
Model # 21-20-165
Brand Cooper Antennas
Frequency 135 - 175 MHz
Gain (typical)  ≥ +1 dBi average over band 
VSWR ≤ 2.5:1 
Impedance (nominal) 50 Ohms (nominal) 
Power 45 Watts
Polarization Vertical (when vertically mounted) 
Radiation Nominally omni directional in azimuth plane
Antenna RF Connector  TNC Female
Height 10.5 inches (267 mm) max 
Weight 0.23kg (0.5 lbs) max 

Finish

  • Urethane Gloss White
  • Other finish options are available.
  • Please specify finish required when ordering.
Datasheet:

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