[RFI] LED Bulb RFI

[Edward Mccann]

Can you comment on best method to measure CMC in a practical manner?

Ed McCann
AG6CX

Sent from my iPhone

> On Jul 8, 2021, at 10:20 AM, Jim Brown <jim at audiosystemsgroup.com> wrote:
> 
>> On 7/7/2021 10:19 AM, Kenneth Wyatt via RFI wrote:
>> Hi All, I just published the results of some measurements I took recently of conducted emissions from LED bulbs. There’s one big surprise at the end...
>> https://www.edn.com/comparing-conducted-emissions-from-led-lamps/  <https://www.edn.com/comparing-conducted-emissions-from-led-lamps/>
> 
> Did you measure the common mode CURRENT? That's what's responsible for most of the radiation from a cable, and with most equipment running from mains power is on the Equipment Ground (the Green Wire), thanks to improper or faulty manufacturing.
> 
> 73, Jim K9YC
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