CA420N4

The CompleTech CA420N4 is a specialized cardioid pattern notch antenna engineered for precise communication within the 405-440 MHz frequency band. This antenna features a significant 8 dBi gain and vertical polarization, ensuring robust signal directionality and efficient transmission and reception. Its cardioid pattern with a notch characteristic is ideal for applications requiring focused coverage and interference rejection in specific frequency ranges. The antenna is constructed with a durable, UV-resistant ABS/FG radome filled with PU foam, providing excellent protection against harsh environmental conditions and ensuring an IP67 rated enclosure. The internal radiator is made of high-conductivity copper, contributing to superior RF performance. Designed for reliability, the CA420N4 boasts a VSWR of less than 1.5, minimizing signal loss and maximizing power transfer. Connectivity is facilitated by versatile N-female/TNC-female connectors, ensuring compatibility with a wide range of radio equipment. Mounting is straightforward, accommodating poles with a diameter of 35-60 mm using an aluminum alloy bracket with stainless steel V-bolts and self-locking nuts. The antenna is designed to withstand a wind load of 132 N. Key features include a DC-short circuited feed point for lightning protection, integrated impedance compensation, and an integrated RF choke. Operating within a temperature range of -40ºC to +80ºC, the CompleTech CA420N4 is built for demanding industrial, telecom, and security applications where precise RF control and environmental resilience are paramount.