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VHF/GPS Antenna

118 to 137 & L1/L2

SKU: 21-50-110

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VHF/GPS Antenna

The 21-50-110 is a combination, vertically polarized VHF communications and circularly polarized GPS antenna suitable for mounting on the upper surfaces of helicopters and sub sonic fixed wing aircraft.

Designed as a short, top loaded monopole for VHF communications and having a top mounted patch antenna for GPS, this antenna has separate decoupled feeds to allow for simultaneous operation of both systems.

Mechanical construction uses a glass reinforced thermoplastic shell with foamed-in-place internal elements. N-type (VHF) and TNC (GPS) connectors are fitted to the aluminum base plate which is DC grounded for p-static protection. 

Model # 21-50-110
Brand Cooper Antennas

VHF 118-137 MHz

GPS 1565-1586 and 1217-1238 MHz


+1 dBi (VHF)

+3 dBiC @ Zenith (GPS) 


VHF ≤ 2.5:1

GPS ≤ 2.0:1 

Impedance (nominal) 50 Ohms

25 Watts (VHF)

1 Watt (GPS) 


Vertical (VHF)

RH Circular (GPS) 

Antenna RF Connector

N Type Female (VHF)

TNC Female (GPS)

Height 10.5 inches (267mm) 
Weight 2.75 lbs (1.25Kg) max 


  • Antenna - Urethane Lusterless Black
  • Other finish options are available.
  • Please specify finish required when ordering.



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