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 Model AY-128 117 - 137 MHz. 11 dBi Gain 


Design Features: The VHF aviation band yagi antenna uses special feed which eliminates the use of folded dipole. The unique design of the yagi antenna feed which works as matching device to keep the VSWR low resulting in increased efficiency of the yagi antenna. The AY-128 aviation band yagi antenna is supplied with N termination fixed on the driven element. This directional yagi antenna, comes factory tuned and does not require any field adjustment. The aviation band yagi antenna is highly suitable as base station antennas for ATC sites where longer communication range is required to cover the particular sector like long strip or bay.

Constructions: Antenna Experts aviation band yagi antenna design reflects innovative modern antenna construction. Radiating elements, supporting booms and adjoining metal castings of yagi antenna have been constructed in high quality aluminum alloys to prevent corrosion. Special mounting hardware permits to mount the yagi antenna either Horizontal or Vertical polarization. The VHF ATC yagi antenna when packed comes with elements removed from the antenna boom for ease of packing and transportation. This yagi antenna can be assembled at site with simple hand-tools.

Electrical Specifications:
Frequency Range117 - 137 MHz.
Gain11 dBi
Bandwidth117-137 MHz
Antenna TypeYagi
PolarizationVertical or Horizontal
Input Impedance50 Ohms
Radiation PatternDirectional
Beamwidth -3dB.55 Degrees (Vertical)
Horizontal Beamwidth -Half Power Points65 Degrees
Front to Back Ratio16 dB.
VSWR - Equal To or Better Then2:1
RF Power Handling Capacity500 Watts
Input TerminationN-Female

Mechanical Specifications:
Antenna MaterialsAll Aluminum
Mounting Hardware -MaterialsStainless Steel
Wind Rating200 Km/Hr.
Overall Length2.0 Meters
Shipping Length2.1 Meters
Support Boom
- Materials
- Cross Section
- Outer Diameter.

Square Tube
25.4 mm
- Materials
- Cross Section
- Outer Diameter.

Round Tube
19 mm
Maximum Mount Pipe Diameter 51 mm (2 Inches)
Gross Weight5 Kgs.

Environmental Specifications:
Operating Temperature(-)30 to +70 Degrees Celsius
Storage Temperature(-)40 to +80 Degrees Celsius
Humidity0 to 95% RH