Welcome to a new series of posts on the topic of test and certification. This post is by Steve Hayes, EMC & Safety Managing Director at TRaC.Is the spectrum above 1GHz open for anyone, just like the old Wild West?
EN55022:2006 introduces radiated emission requirements above 1GHz for the 1st time, but the delay in withdrawing the old 1998 version, means that there are no test requirements above 1GHz.
Does this really mean that the spectrum has no protection or are frequencies above 1GHz less of a problem?
In reality, things become much more directional as the frequency increases, reducing the probability of interference with other systems, so hopefully we won't see any real-life problems due to the delay in moving on from the old standard.
Previous Certification & Test entries:
* Certification & Test: Where have all the ZigBee products come from?
(Picture c3_wild_west_MG_0027 - By Karen Sheets, under Creative Commons Attribution Licence)
In reality, things become much more directional as the frequency increases, reducing the probability of interference with other systems, so hopefully we won't see any real-life problems due to the delay in moving on from the old standard.
Previous Certification & Test entries:
* Certification & Test: Where have all the ZigBee products come from?
(Picture c3_wild_west_MG_0027 - By Karen Sheets, under Creative Commons Attribution Licence)
Comments (1)
Do I really have to leave a comment in order to read the rest of the article?
Testing above 1GHz would quantify protection to the higher freequency stuff (including commercial items like WiFi)
Posted by Ralph Taylor | January 4, 2010 8:17 AM
Posted on January 4, 2010 08:17