Press Releases


Area Contact Regine Suling Manager Marketing Communications, Radio Frequency Systems +49 511 676 3552
24-Aug-2007 Print page

U-Link breaks through frequency barrier

Radio Frequency Systems has pioneered two new 6-1/8-inch coaxial RF transfer switches (U-Links) that operate at frequencies up to 860MHz (75-ohm model) and 820MHz (50-ohm model) respectively. To be unveiled to IBC audiences in September, the two new RFS Rapid Release U-Links support manual RF switching of high-power (and/or high-voltage) digital and analog television channels in the upper UHF band (Band V).

According to Mick Bennett, RFS Global Product Manager for Broadcast and Defense Systems, the U-Links were developed to overcome the tendency of large rigid-line components to develop waveguide characteristics at higher frequencies. “The internal dimensions start to become significant at higher frequencies in the larger rigid-line sizes,” he said. “Standard 50-ohm 6-1/8-inch U-Links produce waveguide modes at frequencies greater than about 750MHz. The broadcast industry has been working around this for years.”

In a world first, RFS’s new 50-ohm 6-1/8-inch U-Link supports frequencies up to 820MHz--the only broadband 50-ohm 6-1/8-inch U-Link to operate beyond 750MHz without producing waveguide modes. It exhibits standard power handling capabilities, better than standard peak voltages of up to 19kV, and better than standard return loss of less than -40dB. “The extended frequency range of the 50-ohm U-Link allows broadcasters to standardize on 50-ohm components for channels up to 820MHz,” Bennett said. “The 75-ohm RFS switch-frame and U-Link will be used for high-power systems supporting channels up to 860MHz.”  

RFS’s new 75-ohm switch-frame and U-Link has already been deployed at a major site in the UK as part of the country’s digital switchover. Visit the RFS stand at IBC 2007 to discuss the company’s full range of RF solutions for all aspects of digital and mobile broadcasting: Hall 8 Stand 418, RAI Amsterdam, 7 to 11 September, 2007.

IMAGE CAPTIONS: RFS has launched the world’s first broadband 50-ohm 6-1/8-inch U-Link to operate beyond 750MHz--supporting up to 820MHz. 

Trademarks: Radio Frequency Systems®, RFS® and The Clear ChoiceTM are all trademarks, service marks or registered trademarks of Radio Frequency Systems.  

Company background
Radio Frequency Systems is a global designer and manufacturer of cable, antenna and tower systems plus active and passive RF conditioning modules, providing total-package solutions for 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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