Model AC3-312 225 - 400 MHz. 3 dBi. Gain 


Design Features : AC3-312 Omni-directional UHF aviation band antenna is rugged all weather model, enclosed in a ABS radome, uses 6063T6 ultra corrosion resistant architectural aluminum alloy and does not require any field tuning or adjustments. The compact size of omni-directional UHF 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. The N-Female termination of antenna is fixed at the bottom of the mounting pipe for complete weather protection. The antenna features high suppression of skin current which provides the smooth VSWR and constant gain over the entire 225-400 MHz frequency band.

Constructions : The UHF aviation band antenna is consisting of large diameter radiating elements stacked vertically and enclosed in ABS radome. The special “Choke and Spark Gap” technique is used for smooth VSWR and constant 3dBi. gain over the entire 225-400 MHz. frequency band. The UV resistant ABS enclosure has excellent transparency for RF signals and enough strength to withstand specified wind loads. The marine grade type 316 stainless steel mounting brackets and bird resistant cap is supplied with the antenna. Cylindrical enclosure is used for low wind loading and for minimal effect of ice formation on the antenna operation as well as providing an aesthetically pleasing appearance.

Electrical Specifications:
Frequency Range225 - 400 MHz.
Gain3 dBi.
Bandwidth225-400 MHz
Antenna TypeOmni
Input Impedance50 Ohms
Radiation PatternOmni-directional
Beamwidth -3dB.76 Degrees (Vertical)
RF Power Handling Capacity500 Watts.
Input TerminationN-Female

Mechanical Specifications:
MaterialsBrass & Aluminum
Mounting Hardware -MaterialsStainless Steel
Wind Rating200 Km/Hr.
Overall Length0.85 Meter
Shipping Length0.90 Meter
Maximum Mount Pipe Diameter 52 mm (2 Inches)
Radome MaterialUV Resistant ABS
Radome Length530 mm
Net Weight5 Kgs.
Gross Weight6 Kgs.

Environmental Specifications:
Operating Temperature(-)40 to +85 Degrees Celsius
Storage Temperature(-)45 to +85 Degrees Celsius
Humidity0 to 95% RH