Model AC12-250 220-290 MHz 12 dBi. Gain 
 

FIBER GLASS COLLINEAR ANTENNA

Design Features : AC12-250 Fiberglass Omni-directional Collinear Antenna is rugged all weather model uses high class brass and aluminum 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 AC12-250 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 gain over the specified frequency band. The collinear antenna consist of large diameter brass radiating elements stacked vertically, fed in phase and enclosed in fiber glass tube. AC12-250 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, on the side of antenna tower.

Electrical Specifications:
Frequency Range220-290 MHz
Gain12 dBi.
Bandwidth12 MHz
PolarizationVertical
Input Impedance50 Ohms
Radiation PatternOmni-directional
Beamwidth -3dB.9 Degrees (Vertical)
VSWR1:1.5
RF Power Handling Capacity150 Watts
Input TerminationN-Female

Mechanical Specifications:
Mounting Hardware -MaterialsMarine Grade Stainless Steel
Wind Rating200 Km/Hr.
Overall Length5.6 Meters
Shipping Length3 Meters
Support Pipe O.D.51mm
Support Pipe Material6063T6 Aluminum Alloy
Radome MaterialHigh Strength Fiberglass
Radome Outer Diameter45 mm
Radome Length5300 mm
Radiating Elements - MaterialHigh Quality Brass
Gross Weight18 Kgs.

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