4RF is a world-class designer and manufacturer of high-efficiency narrowband radios for utilities, oil and gas, smart grid and other critical infrastructure applications. Delivering highly secure communications in licensed bands, 4RF products support both Serial and IP traffic and are optimised for robust, long-term performance in temperature extremes and harsh environments. 4RF SCADA point-to-multipoint radios operate in VHF and UHF licensed bands. The Aprisa XE point-to-point radios provide a wider range of sub 3 GHz frequencies. Combining a standards-based approach with excellent RF performance, superior reliability and ease of use, 4RF develops best-in-class wireless products.