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Area Contact Paula Mennone-Preisner Marketing and Communication Specialist +1 203 630-3311-1809
05-Nov-2015 Print page

RFS Introduces High-Power 3dB Coupler for Transmitter and Channel Combining in the UHF TV Band

Meriden, CT (United States), November 5, 2015 – Radio Frequency Systems (RFS), the global wireless and broadcast infrastructure specialist, announces its new high-power 3dB directional coupler for use in the UHF TV band for transmitter and channel combining. The RFS DC618E-HP, rated for 80kW-120kW depending on application at UHF frequencies 470-700MHz, is the latest addition to RFS’ family of directional couplers and will change the landscape for balanced combining applications.

“The high power combiner market has great need for this product and we expect it to be of immediate interest to UHF transmitter manufacturers,” said Martin O’Donohue, global marketing manager for the Broadcast and Defense Systems product line from Kilsyth. 

The new high-power 3dB coupler can be used in balanced combiners or for transmitter power combining. It is very compact, for easy integration into equipment, and has the lowest insertion loss and highest power rating for coaxial TEM-mode technology. For transmitter combining, it is rated at 120 kW average power, while for channel combiners it is ideally suited to combine several high-power channels into one common output.

This coupler has four 6-1/8″ EIA flanged male inputs/outputs, which are designed to fit the narrowband input of the RFS tunable 320kW combiner. With a robust construction, the coupler weighs an impressive 174 lbs (79kg). It features RFS’ patented method for direct heat transfer. 

The body allows for two possible mounting configurations. Mounting holes are located in lugs on four corners or in tabs at both ends of the central waist. The voltage rating at sea level is 25kV with better than 1.5 safety factor into a 50-ohm load and return loss across the operating range better than or equal to 32dB. The coupler offers a power split of 3.01 +/- 0.25 dB with a phase balance of -90 degrees.  It may also be used as a stand-alone splitter.

“Teamed with the 325mm filter and waveguide coupler developments, RFS continues to deliver the lowest insertion loss, high power combining technology that is on the cutting edge for the broadcast market,” said Timo Brouwer, vice-president broadcast & defense systems, RFS.

RFS® is a registered trademark of Radio Frequency Systems. All other trademarks are the property of their respective owners.

About RFS
Radio Frequency Systems (RFS) is a global designer and manufacturer of cable, antenna and tower systems, plus active and passive RF conditioning modules, providing total-package solutions for outdoor and indoor wireless infrastructure.

RFS serves OEMs, distributors, system integrators, operators and installers in the broadcast, wireless communications, land-mobile and microwave market sectors. As an ISO compliant organization with manufacturing and customer service facilities that span the globe, RFS offers cutting-edge engineering capabilities, superior field support and innovative product design. RFS is a leader in wireless infrastructure.

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RFS Press Contact               
Paula Mennone-Preisner
Marketing and Communications Specialist   
Phone: + 1 203 630 3311
Cell: + 1 203 715 1595

PR Contact
Jordan Bouclin or Cheryl Reynhout
SVM Public Relations
Phone: + 1 401 490 9700

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