[Top] [All Lists]

Re: [RFI] Sylvaniai LED bulb interference 20 meters too

To: rfi@contesting.com
Subject: Re: [RFI] Sylvaniai LED bulb interference 20 meters too
From: Jim Brown <jim@audiosystemsgroup.com>
Reply-to: jim@audiosystemsgroup.com
Date: Wed, 12 Jan 2011 00:53:25 -0800
List-post: <rfi@contesting.com">mailto:rfi@contesting.com>
On 1/11/2011 6:51 PM, Cortland Richmond wrote:
> a coaxial power plug doesn't have a "pin 1" problem;

It certainly could.  If there happens to be common mode RF current on 
that power cable, where does that common mode current go?  We would like 
it to go to the chassis, NOT inside the box, as I described.

Obviously, if one insists on keeping V- off of the chassis, this sort of 
problem could also be solved by decoupling and bypassing of both 
conductors, but as Henry Ott has so poetically observed, we tend to 
forget the invisible schematic hiding behind the ground symbol.

73, Jim K9YC
RFI mailing list

<Prev in Thread] Current Thread [Next in Thread>