EMR Corporation was founded in 1980 by William Lieske, Sr. as an OEM supplier of ferrite and hybrid devices to the land mobile communications and broadcast industries. Today, EMR offers a complete line of antenna site and mobile filtering products covering the R.F. spectrum from 30 MHz to 2.8 GHz, and products capable of handling power levels up to 2 KW. Our line is extensive, we have many products to provide effective communications in today's challenging R.F. environments.

With our specialized team members providing leadership, top notch engineering, and state of the art manufacturing we design and manufacture a wide variety of custom products as well as products for standardized applications. EMR excels in unique designs to meet exact customer requirements. From our founding, our corporate philosophy has been, is, and will be to provide the highest quality products, at the greatest level of technical excellence, with the most practical consideration, at an economical price.

EMR standard product offering is comprised of a mature line of high quality, highly reliable: isolators, filters (1/4 wave, helical, combline, hogout, aperture coupled), receive LNA's (single stage, two stage or quadrature E-pHEMT), multicouplers, tower top multicouplers (amplifier bypass, b/u with auto switching), combiners (hybrid ferrite, filter ferrite, active and passive short haul/control station, repeater system), duplexers (1/4 wave, helical, mobile 50 and 100 watt versions), bidirectional and unidirectional systems (upgrades include higher gain, UPS w/Battery backup, monitor/alarm both local and remote), site monitoring and many other component level devices necessary to provide effective communications in today's challenging RF environments. Custom products are one of our specialties, contact us with your unique requirements and we will design a custom product for you.