Model AC12-390 380-400 MHz 12 dBi. Gain 
 

TETRA BAND ANTENNA

Design Features: AC12-390 Fiberglass Omni-directional TETRA Band Collinear Antenna is rugged all weather model 6063T6 ultra corrosion resistant architectural aluminum, high class brass alloy and does not require any field tuning or adjustments. The antenna is supplied in two segments for easy of handling and shipping. The upper and lower portion of antenna is threaded together to prevent RF inter-modulation and antenna is completely protected within a high-tech ruggedized radome to ensure survivability in the worst environments. The antenna termination is enclosed at bottom of the antenna for complete weather protection.

Constructions: The AC12-390 is a center fed design which eliminates the distortion of the radiation pattern and ensures a true omni-directional horizontal pattern. The special stub matching is used for smooth VSWR and constant 12dBi gain over the entire 380-400 MHz TETRA band. The collinear antenna consist of large diameter brass radiating elements stacked vertically, fed in phase and enclosed in fiber glass tube. The mounting hardware is made of type 316 marine grade stainless steel and supplied with the antenna. AC12-390 TETRA band fiber glass collinear antenna is suitable for side mounting on the tower and is supplied with mounting hardware, including a non metallic 1.2 Meters (4 feet) long horizontal arm to hold the fiberglass omni-directional antenna at the top.

Electrical Specifications:
Frequency Range380-400 MHz
Gain12 dBi.
Bandwidth20 MHz
Antenna TypeFiberglass
PolarizationVertical
Input Impedance50 Ohms
Radiation PatternOmni-directional
VSWR1:1.5
RF Power Handling Capacity250 Watts
Input TerminationN-Female

Mechanical Specifications:
Mounting Hardware -MaterialsMarine Grade Stainless Steel
Wind Rating200 Km/Hr.
Overall Length5.9 Meters
Shipping Length3.0 Meters
Support Pipe Material6063T6 Aluminum
Maximum Mount Pipe Diameter 51 mm (2 Inches)
Radome MaterialFiberglass
Radome Outer Diameter44 mm
Radome Length5100 mm
Gross Weight20 Kgs.

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