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VHF/Active GPS Antenna

118 to 137 & L1/L2

SKU: 21-50-110-1

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VHF/Active GPS Antenna

The 21-50-110-1 is a combination, vertically polarized VHF communications and circularly polarized active 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 with integral low noise amplifier (LNA) 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. Power for the LNA is fed via the GPS coaxial cable. 

21-50-110-1
Model # 21-50-110-1
Brand Cooper Antennas
Frequency

VHF 118-137 MHz

GPS 1565-1586 and 1217-1238 MHz 

Gain

+1 dBi (VHF)

+3 dBiC @ Zenith (GPS antenna)

+ 33 dB (LNA) 

VSWR

VHF ≤ 2.5:1

GPS ≤ 1.5:1 (antenna)

Impedance (nominal) 50 Ohms
Power Handling

25 Watts (VHF)

1 Watt (GPS) 

Polarization

Vertical (VHF)

RH Circular (GPS)

Antenna RF Connector

N Type Female (VHF)

TNC Female (GPS) 

DC Power for GPS Pre-Amp 2.5 - 24 V ≤ 50 mA (typical) 
Height 10.5 inches (267mm) 
Weight 2.75 lbs (1.25Kg) max 

Finish

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

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Datasheet:

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