DFS Testing and Certification Services
Is your company prepared to meet the new Dynamic Frequency Selection (DFS) requirements (per FCC Part 15, subpart E) for products operating in the 5 GHz band? Dynamic Frequency Selection is a technology that is designed to ensure that wireless devices operating in the unlicensed WLAN 5 GHz bands are able to detect when they may be interfering with radar systems and automatically switch over to another frequency where they will not cause any interference. These formal requirements are in effect in the USA, Canada, Europe, Japan, Australia, Korea and other markets around the world.
Elliott Laboratories is widely acknowledged to be a leading provider of DFS-related compliance testing and certification services. We participated directly in the DFS standards development process with the FCC, Department of Defense, and other industry representatives and we are capable of testing to all current North American, Japanese, Korean and European Union standards for DFS, including the latest versions of the European standard EN 301 893 V1.5.1. Why take chances with less experienced service providers who might lack the true capabilities to ensure that your products will meet these critical new requirements? Elliott Laboratories is your proven provider of fast and reliable DFS testing and certification services!
For more information or for a price quote for DFS related services please contact us at info@elliottlabs.com
DFS Educational Info from Elliott Laboratories
- Latest European DFS requirements as of November 2009
- Link to 1/31/07 DFS Webinar Slides
- Article: "Dynamic Frequency Selection (DFS) and the 5GHz Unlicensed Band" by Mark Briggs
The following link is to the FCC's report and order FCC-06-96A1 released on June 30, 2006:
More information on the European Union's DFS requirements can be found at:
DFS Testing Support Information :
The links below connect to a Media Player Codec and to the FCC-approved MPEG file used to generate traffic between master device and slave device during DFS testing. We recommend you install these files onto the PCs that you will use to support your DFS testing. To download the files using Internet Explorer, right click on the links below and select 'Save Target As'.
- FCC Mpeg file to be streamed during testing
- Media player codec to be used to stream the file
- Media player instructions
Note that the FCC recently relaxed their codec requirement to allow the use of any codec/media player provided that the video is continuously streamed (i.e. no data caching) with the wireless link operating at the minimum data rate that streams data smoothly (29 frames/sec. with no pixilation) and provides consistent statistical test data
FCC Recommendations/Requirements for DFS Testing
The following link will take you to the FCC's recommendations/requirements for special operational modes for testing Part 15E UNII devices with DFS and radar detection capability:
