ERI manufactures UHF low pass harmonic filters and UHF television band pass filters in both reflective and constant impedance configurations. The company builds a complete suite of accessory products including switches, directional couplers, hybrid power combiners, and RF loads.
UHF Band Pass FiltersThe ERI UF Series is a family of tunable UHF television mask filters available as stand-alone bandpass filters or available integrated into complete RF systems. The UF Series UHF band pass filters are tunable and exceptionally efficient available in models to accommodate 1500 watts to 50 kilowatts. Six and eight pole designs are available for 8-VSB and COFDM applications. ERI produces a full line of reflective and constant impedance RF filter systems for ATSC, ISDB-T, DMB, DAB, and DVB-T applications. The company’s broad range of products include RF components (either coaxial and waveguide) for combiners, hybrids, diplexers, directional couplers, motorized switches, RF loads, and much more. With the ability to call on decades of previous system designs and configurations and the significant internal engineering and manufacturing expertise ERI can quickly respond to requirements whether they be broadcast, military, or scientific applications.
UHF Low Pass Harmonic FiltersERI high rejection UHF low-pass harmonic filters are designed for transmitter power levels up to 39 kW, average power. Chebyshev design parameters define element values that provide 40 dB or greater rejection at the second harmonic and 30 dB or greater rejection at the third harmonic.