EMR Corporation was originally founded in 1980 as an OEM supplier of ferrite and hybrid devices to the land mobile communications and broadcast industries. More than 25 years later, the company provides design, supply and implementation of complete radio frequency communication systems. Its product list includes antennas, antenna related equipment, hardware, additional accessories, intermodulation control devices, cavity resonators, duplexers, transmitter combiners, multicouplers, multicoupler components, signal enhancement products and amplifiers. EMR is located in Phoenix, Ariz.