Model AY-128-16 117 - 137 MHz 16 dBi. Gain 


Design Features: This aviation band extended range antenna system is highly suitable as base station antenna for ATC sites where extended range is required to cover the longer and deep Oceanic Information Region (OIC) to control the inbound and outbound Oceanic traffic. The array system has a 110 Degrees wide horizontal beam-width if configured 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 8 stacked yagi antenna is supplied with N-Female termination fixed on the driven element. This highly directional yagi antenna, comes factory tuned and does not require any field adjustment.

Constructions: The VHF aviation band array system is consisting of 8 yagi antenna each having 3 elements, supplied with Two solid air-cored 4 way power splitter/combiner, One solid air-cored 2 way power splitter/combiner and Ten 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.

Electrical Specifications:
Frequency Range117 - 137 MHz
Gain16 dBi.
Bandwidth6 MHz.
Antenna TypeYagi
Input Impedance50 Ohms
Radiation PatternDirectional
Beamwidth -3dB.12 Degrees (vertical)
Horizontal Beamwidth -Half Power Points110 Degress
Front to Back Ratio24 dB.
RF Power Handling Capacity1000 Watts
Input TerminationN-Female or DIN-Female

Mechanical Specifications:
MaterialsAll Aluminum
Mounting Hardware -MaterialsStainless Steel
Wind Rating200 KMPH
Overall Length12 Meters (vertical aperture)
Shipping Length1.4 Meters
Support Boom
- Materials
- Cross Section
- Outer Diameter.

Square Tube
- Materials
- Cross Section
- Outer Diameter.

Round Tube
No. of Yagi Boom8 Nos.
Maximum Mount Pipe Diameter 51 mm (2 Inches)
Gross Weight50 Kgs.

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