AQY-128

Design Features: The aviation band quad stacked yagi antenna system is highly suitable as base station antennas for ATC sites where longer communication range is required to cover the particular sector of Flight Information Region (FIR) like narrow but long strip if stacked side-by-side or Oceanic Information Region (OIC) of a bay if stacked vertically as shown in the figure. 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 aviation band quad stacked 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.
Constructions: The VHF aviation band array system is consisting of 4 yagi antenna each having 6 elements, supplied with a solid air cored 4 way power splitter/combiner and four low loss phasing harness cables. Radiating elements, supporting booms and adjoining metal castings of yagi antenna system have been constructed in high quality aluminum alloys to prevent corrosion. The VHF ATC yagi array system when packed comes with elements removed from the antenna boom for ease of packing and transportation. This array can be assembled at site with simple hand-tools.
The antennas system can be configured in square formation to control the beam-width in desired plane.