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Re: [RFI] LED Bulb RFI

To: jim@audiosystemsgroup.com
Subject: Re: [RFI] LED Bulb RFI
From: Edward Mccann via RFI <rfi@contesting.com>
Reply-to: Edward Mccann <edwmccann@yahoo.com>
Date: Thu, 8 Jul 2021 11:48:10 -0700
List-post: <mailto:rfi@contesting.com>
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@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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