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ERI UF5000A and UF22000 UHF Bandpass Filters Feature Unique Forced Air-Cooling System

Chandler, Indiana – April 19, 2022 – Electronics Research, Inc. will introduce two improved UHF Television Bandpass Filters at NABSHOW2022. The new UF5000A and UF22000 UHF bandpass filters are rated to handle up to 5 kW and 22 kW average power, respectively. They both feature a patent-pending targeted forced air-cooling system that utilizes distributed finned heat sinks with individual cooling fans to target those locations that generate the most heat, based on laboratory testing. The system provides better heat removal using lower volumes of targeted airflow and has the benefits of less ambient noise and lower power consumption than traditional forced air-cooling methods.

The temperature-compensated filters are constructed of lightweight Aluminum with Brass resonators. The Evanescent coupled TEM resonators are durable and provide a rugged design that tunes quickly. Six and eight pole designs are available for 8-VSB and COFDM applications. Input and output connections are 3-1/8 or 4-1/16-inch, unflanged.

For more information, visit ERI’s website www.eriinc.com or contact the company at +1 (812) 925-6000.

ERI will be exhibiting at NABSHOW 2022 at the Las Vegas Convention Center from April 24 to 27 in the West Hall, Booth Number W6505.

 

 

 

About Electronics Research, Inc.

For nearly 80 years, ERI has served the broadcast industry with products and services of the highest quality and dependability. Our dedicated staff of engineers, designers, fabricators, project managers, and installers deliver products to meet all of your broadcast transmission system needs, both RF and structural. We take pride in contributing to your success by offering the best broadcast antennas, filters and combiners, transmission line, and towers.

For More Information, Contact:

Bill Harland

Electronics Research, Inc.

Tel: (812) 925-6000×214

Fax: (812) 925-4030

bharland@eriinc.com

Online: www.eriinc.com

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ERI Introduces New 3 dB FM Hybrid Couplers/Power Dividers

Chandler, Indiana – April 18, 2022 – Electronics Research, Inc. will introduce two improved 3 dB FM Hybrid models at NABSHOW2022. The HY0241 and HY0244 are now available with a broader array of port sizes, have improved power handling, and minimal variation in coupling ratio across the FM band.

The HY0241Series 3.0 dB FM Hybrid Splitter/Combiners includes models that handle up to 120 kW at the combined output (2 x 60 kW). They can be supplied with any combination of port connections from 1-5/8-inch inch to 6-1/8-inch. They are most often used in ERI’s constant impedance FM channel combining systems and as a power combiner to combiner multiple FM transmitter cabinets for increased transmitter power.

The HY0244 is a 90-degree 3-dB Hybrid Coupler with higher power handling capability. They are available with any combination of port sizes from 3-1/8-inch to 9-3/16-inch. The HY0244 is most commonly used as the output hybrid for a constant impedance FM module in large multi-channel combiner systems. Power handling is dependent on flange selection. Models are available to handle up to 300 kW at the combined output.

For both models, the standard configuration is a “cross-over” design. The input port opposite the combined output lags the other input by 90 degrees, “non-cross-over” versions are also available. They are constructed of lightweight aluminum and can be designed with coupling ratios other than 3.0 dB. Power handling is dependent on flange selection.

For more information, visit ERI’s website www.eriinc.com or contact the company at +1 (812) 925-6000.

ERI will be exhibiting at NABSHOW 2022 at the Las Vegas Convention Center from April 24 to 27 in the West Hall, Booth Number W6505.

For More Information, Contact:

Bill Harland

Electronics Research, Inc.

Tel: (812) 925-6000×214

Fax: (812) 925-4030

bharland@eriinc.com

Online: www.eriinc.com

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New Precision Coaxial Directional Couplers from ERI

Chandler, Indiana – April 15, 2022 – Electronics Research, Inc. has added a new family of precision directional couplers to its product line. The coaxial directional couplers are available for 1-5/8-inch, 3-1/8-inch, 4-1/16-inch, and 6-1/8-inch coaxial transmission lines with one, two, three, or four sampling ports. The standard sampling port connections are Type N or SMA. The line sections are constructed to securely position and hold the inner conductor to ensure the coupler remains stable and calibrated through shipment and installation. These directional couplers are constructed with rugged aluminum outer conductors and are very compact, allowing them to be mounted in congested locations. The directional couplers have an operating frequency range from 54 MHz to 800 MHz and can be set for coupling levels from -30 dB to -70 dB with directivity of 30 dB or better. ERI also manufactures adjustable coaxial directional couplers and produces waveguide directional couplers for all line sizes used for terrestrial broadcast applications.

For more information, visit ERI’s website www.eriinc.com or contact the company at +1 (812) 925-6000.

ERI will be exhibiting at NABSHOW 2022 at the Las Vegas Convention Center from April 24 to 27 in the West Hall, Booth Number W6505.

About Electronics Research, Inc.

For nearly 80 years, ERI has served the broadcast industry with products and services of the highest quality and dependability. Our dedicated staff of engineers, designers, fabricators, project managers, and installers deliver products to meet all of your broadcast transmission system needs, both RF and structural. We take pride in contributing to your success by offering the best broadcast antennas, filters and combiners, transmission line, and towers.

For More Information, Contact:

Bill Harland

Electronics Research, Inc.

Tel: (812) 925-6000×214

Fax: (812) 925-4030

bharland@eriinc.com

Online: www.eriinc.com

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ERI Adds Circularly and Elliptically Polarized Models to ALV Series High Band VHF Television Antenna Family

Chandler, Indiana – April 14, 2022 – Electronics Research, Inc. has added circularly and elliptically polarized models to its ALV Series High Band VHF Television Antenna product family. These are high band VHF television antennas built for any single RF channel from 7 through 13 (174 to 216 MHz). They are lightweight side-mounted antennas primarily designed for use as auxiliary antennas. All models include a fiberglass slot cover to protect the antenna from rain, snow, and ice. All models of ALV Series VHF television antennas are shipped with 36-inch (914 mm) standoff brackets for mounting on poles or tower legs from 1.5-inches (35 mm) to 7.5-inches (191 mm) OD. As optional items, standoff support pipes, face mount brackets, and mounts for larger diameter poles are available from ERI. Contact ERI for a proposal for these requirements.

For more information, visit ERI’s website www.eriinc.com or contact the company at +1 (812) 925-6000.

ERI will be exhibiting at NABSHOW 2022 at the Las Vegas Convention Center from April 24 to 27 in the West Hall in Booth Number W6505.

About Electronics Research, Inc.

For nearly 80 years, ERI has served the broadcast industry with products and services of the highest quality and dependability. Our dedicated staff of engineers, designers, fabricators, project managers, and installers deliver products to meet all of your broadcast transmission system needs, both RF and structural. We take pride in contributing to your success by offering the best broadcast antennas, filters and combiners, transmission line, and towers.

For More Information, Contact:

Bill Harland

Electronics Research, Inc.

Tel: (812) 925-6000×214

Fax: (812) 925-4030

bharland@eriinc.com

Online: www.eriinc.com

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Jeffrey Hillenbrand, P.E. Joins ERI as Senior Structural Engineer

Chandler, Indiana – March 22, 2022 – Jeffrey Hillenbrand is the newest member of the Electronics Research, Inc. Structural Engineering team. He joins ERI as a Senior Engineer, Structural, with fifteen years of experience in structural design and project management experience. Hillenbrand is a Registered Professional Engineer holding licenses for the states of Georgia, Indiana, Kentucky, Michigan, and Texas. He joins ERI from Apex Engineering, a provider of industrial control and process engineering equipment and services.

John Robinson, P.E., ERI’s Vice President of Structural Engineering, commented, “ERI is very fortunate to have a candidate with Jeff’s qualifications, education, and experience accept this position with the company. He will be a solid contributor to ERI’s design capacity to design and manufacture new towers and to our business of providing structural analysis and reinforcement services for existing towers.”

Hillenbrand holds a Bachelor of Science in Engineering and is a graduate of the University of Southern Indiana, and resides in Evansville. He will be based at ERI’s headquarters and manufacturing facility in Chandler, Indiana. He is also an active member of the American Society of Civil Engineers (ASCE), where he currently serves as Secretary for the Southwest Indiana Branch of the society.

 About Electronics Research, Inc.

For more than 75 years, ERI has served the broadcast industry with products and services of the highest quality and dependability. Our dedicated staff of engineers, designers, fabricators, project managers, and installers deliver products to meet all of your broadcast transmission system needs, both RF and structural. We take pride in contributing to your success by offering the best broadcast antennas, filters and combiners, transmission line, and towers.

 

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ERI’s Test Range Experience Delivers Accurate Results

The success of an FM transmission system is highly dependent upon knowing its coverage pattern. The relationship between the antenna and the support structure will have a great effect on the determination of your market area. Understanding how the support structure will deform the antenna’s broadcast characteristics is vitally important. Antennas sold for FM broadcast are generally advertised as having omnidirectional characteristics (uniform radiation in all azimuth directions). The qualifying statement, “based upon free space evaluation,” usually goes unnoticed. “Free space” means the measurement was made without the influence of the mounting structure. However, the mounting structure can greatly impair an antenna’s ability to provide a uniform broadcast pattern.

 

ERI’s Antenna Test Range has been in continuous use longer than any other Test Range used by any broadcast antenna supplier. This is important because long experience is needed to fully characterize a test facility so that it delivers accurate results. This process requires years and newly constructed antenna test facilities cannot be trusted to provide accurate and repeatable measurements.

 

The range includes two turntables and one static stand. The turntables are rated for deadweight loads of 12,000 and 25,000 pounds – respectively. In addition to the range measurement and test facilities, the site includes a machine shop and fabrication facility for constructing replica tower sections independent of ERI’s main factory. The test site is also equipped with a static stand workstation for the setup and tuning of Batwing television antennas and Master FM Antenna Systems. The ERI test range has its own dedicated staff of tower climbers, machinists, technicians, and engineers

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First module assembled for a new five station FM channel combiner

ERI’s Filter Lab technicians have begun assembly for system testing for a new five-station constant impedance FM channel combiner. The combiner will be fully assembled and tuned here at ERI’s factory and then disassembled for shipment and reassembly at the customer site. The individual combiner modules are configured in vertical stands to minimize the floor space they require. The system also includes a power divider at the combined output to divide the combined output into two transmission lines, which will feed the top and bottom halves of the 16-bay AXIOM® Master FM Antenna system.

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New Integrated UHF Channel Combiner

The product shown is a new Model UF3000-323-TCC UHF Tee Combiner built to combine RF Channel 14 and 36 into a broadband UHF panel antenna. It is a channel combiner only with two (2) three-section UHF bandpass filters in a single integrated case. The combiner is rated to handle up to 3 kW average power at each input, 6 kW at the combiner output. Insertion loss is only 0.1 dB. The combiner includes single port directional couplers at each of its 1-5/8-inch EIA flanged inputs and a single port adjustable directional coupler at the 3-1/8-inch EIA flanged combined output.