Electronics Research Inc. plans to introduce two improved 3 dB FM Hybrid models at the NAB Show.
“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 company announced.
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,” it said.
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. ERI said 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.
NAB Show Booth: W6505
