ERI is a company focused on serving the needs of terrestrial radio and television broadcasters with antennas, transmission line, RF components, and structural products. The company focuses on providing high-quality and sophisticated engineering solutions to customer problems. ERI’s products and services include television and FM transmitting antennas FM radio and VHF/UHF television RF filters and channel combiners guyed and self-supporting towers grounding and lightning protection products tower and antenna installation services, structural analysis and inspection services rigid transmission line, and UHF waveguide systems.