by Ghery Pettit | Jun 1, 2016 | EMC Standards
The Final Draft International Standard (FDIS) for CISPR 35 was expected to be circulated to the national committees for vote in early July. Guess what? It’s been circulated. 27 May 2016. The IEC Central Office is ahead of scheduled. Voting is only open for...
by Ghery Pettit | May 3, 2016 | EMC Standards, General
CISPR is acronym for the French words for the International Special Committee on Radio Interference. “Comité International Spécial des Perturbations Radioélectiques”. CISPR is a special committee of the International Electrotechnical Committee (IEC). CISPR is...
by Ghery Pettit | Apr 20, 2016 | EMC Standards
Blog – April 20, 2016 What is the status of CISPR 35? CISPR 35, the new immunity standard for broadcast receivers, information technology equipment and multimedia equipment is the subject of much interest outside CISPR SC I, Working Group 4 where it is being...
by Ghery Pettit | Jan 25, 2016 | EMC Standards, FCC
For years manufacturers who are required to use the FCC’s Certification process for product EMC approvals have had the choice of using a lab that is FCC Listed or a lab that is an FCC Recognized Accredited Test Laboratory. FCC Listed labs may be located anywhere in...
by Ghery Pettit | Oct 7, 2015 | EMC Standards
What is CISPR 32? For a more complete version of this blog, see the article I wrote for Interference Technology at http://www.interferencetechnology.com/cispr-32-what-is-it-why-was-it-written-and-where-is-it-going/. The following is a summary of key parts of this...
by Ghery Pettit | Jun 25, 2015 | EMC Design
Bypass Capacitors – Size and number There is a fair amount of discussion and disagreement in the EMC community about the subject of bypass capacitors. What size should they be? Should you use more than one in a given location to cover a wider frequency range? My...
by Ghery Pettit | Jun 22, 2015 | General
Welcome to Pettit EMC Consulting LLC! We’ve launched this site so that you can find out all about Pettit EMC Consulting LLC. Who are we? What services do we offer? What got me into consulting? And, short of going to the long winded biography, why should you think...
by Ghery Pettit | Jun 4, 2015 | General
I’m sure that some folks who have stumbled on this web site are confused. There’s a company called EMC and they’re wondering what this site has to do with them? The answer is – nothing. EMC stands for Electromagnetic Compatibility. EMC is defined in MIL-STD-463A...
by Ghery Pettit | Jun 1, 2015 | FCC
The Declaration of Conformity process in the US has two different options for personal computers. The first is used if the PC was tested for compliance with the FCC limits for radiated and conducted emissions. This testing must have been performed in an accredited...
