CompleTech CA340C4 offset pattern collinear - Frequency range: 326-353 MHz - Gain: 11 dBi - Polarization…

The CompleTech CA340C4 is an offset pattern collinear antenna engineered for mission-critical wireless communication in the 326-353 MHz frequency range. With a 11 dBi gain and vertical polarization, this antenna delivers strong, directional signal transmission and reception, making it ideal for industrial telemetry, public safety networks, and telecom deployments. The triangular feed design enables field-adjustable radiation patterns, while optional beam tilting allows fine-tuning for optimal coverage in challenging environments. Built for durability, the CA340C4 features a UV-resistant ABS/FG radome with PU foam filling, protecting the copper radiator from harsh weather, UV exposure, and mechanical stress. The radome construction ensures IP67-rated protection against dust and water ingress, while the DC-short-circuited feed point provides inherent lightning protection. The antenna’s lightweight aluminum alloy bracket and stainless steel V-bolts support pole mounting on diameters from 35-60 mm, with a wind load resistance of 144 N for reliable performance in high-wind conditions. Electrically, the CA340C4 offers a low VSWR of less than 1.5 across its operating band, ensuring minimal signal reflection and maximum power transfer. The integrated impedance compensation and RF choke reduce interference and improve signal integrity. Operating from -40°C to +80°C, the antenna is suitable for outdoor installations in extreme climates. The N-/TNC-female connector provides compatibility with a wide range of RF equipment, including base stations, repeaters, and monitoring systems. Key applications include SCADA systems, remote telemetry units (RTUs), land mobile radio (LMR) networks, and public safety communications. The CA340C4’s collinear design minimizes sidelobe radiation, reducing interference in dense deployment scenarios. With a horizontal 3 dB beamwidth of 179° and vertical 3 dB beamwidth of 20°, it offers broad coverage while maintaining directional focus where needed.