Model AC5-127 118-137 MHz 5 dBi Gain 


Design Features: AC5-127 Omni-directional VHF aviation band antenna is rugged all weather model, radiator enclosed in a fiberglass radome, uses high class brass and 6063T6 ultra corrosion resistant architectural aluminum alloy and does not require any field tuning or adjustments. The compact size of omni-directional high gain VHF aviation band antenna allows easy handling, shipping and highly suitable for ATC sites for ground-to-ground and ground-to-air communication without having the requirement of multiple antennas. Antenna termination and feed cable lie enclosed inside the mounting pipe for complete weather protection. Cylindrical enclosure is used for low wind loading and for minimal effect of ice formation on the VHF aviation antenna operation as well as providing an aesthetically pleasing appearance.

Constructions: The VHF high gain aviation band antenna is consisting of large diameter radiating elements stacked vertically and enclosed in fiber glass tube. The ATC antenna uses a set of small ground plane elements which are removable for ease of shipping and transportation. These ground plane elements can be assembled in the field with simple hand tools. The ground elements of ATC base station antenna are attached via stainless steel stud systems at points along the antenna skirt hub. The special “Choke and Spark Gap” technique is used for smooth VSWR and constant 5+dBi. gain over the entire 117.975-137 MHz. frequency band. The fiberglass enclosure has excellent transparency for RF signals and enough strength to withstand specified wind loads. The marine grade stainless steel mounting brackets are supplied with the high gain aviation antenna.

Electrical Specifications:
Frequency Range118-137 MHz
Gain5 dBi
Antenna TypeOmni
Input Impedance50 Ohms
Radiation PatternOmni-directional
Horizontal Beamwidth -Half Power Points40 Degrees
RF Power Handling Capacity500 Watts
Input TerminationN-Female

Mechanical Specifications:
Materials6063T6 Aluminum Alloy
Mounting Hardware -MaterialsMarine Grade Stainless Steel
Wind Rating170 Km/Hr.
Overall Length3.15 Meters
Shipping Length3.25 Meters
Support Pipe MaterialAluminum Alloy
Maximum Mount Pipe Diameter 52mm (2 Inches)
Radome MaterialFiberglass
Net Weight16 Kgs.
Gross Weight20 Kgs.

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