Dynamic frequency selection (DFS) is a feature that monitors the spectrum and selects a frequency for operation that is not already in use, to avoid causing interference to radio transmissions such as weather or military radar.
It is a function imposed by the International Telecommunication Union (ITU) for devices operating in the 5GHz UNII 2a and UNII 2c bands in the US and the bands within 5250 MHz – 5875 MHz in the EU and other parts of the world, where the radar systems are given preference for spectrum usage.
In the presence of local radar events, the Device Under Test (DUT) must select an alternative channel or cease transmission entirely.
Our DFS test system supports all the standard radar waveform regimes. Additionally, customized waveforms can be created for R&D or performance test. Common DFS test requests we execute include those required by the FCC, ETSI, Japan (MIC), Korea and China.
We have the expertise, the equipment, and the scope to perform global standardized or custom DFS testing. We’re your 1-stop wireless test services for DFS and other common frequency ranges. We offer cost-effective solutions, flexible scheduling, excellent lead-times, and provide testing solutions. Testing and reporting is completed in a timely manner, with your specific requirements in mind.
Dynamic Frequency Selection Capabilities
| Region | Test Specification |
|---|---|
| FCC | KDB 905462 |
| ETSI | ETSI EN 301 893 ETSI EN 302 502 |
| Japan | JRL Article Paragraph 1, Item 19-3 MIC W53 MIC W56 |
| Korea | RRA Notice 2018-90 |
| China | YD/T 2950-2015 LP-0002 |