On Tue, May 8, 2018, at 7:27 AM, andy pugh wrote:
> On 8 May 2018 at 12:20, andy pugh <bodge...@gmail.com> wrote:
> 
> > Should the shield pass through the choke, or should I strip the area
> > where the choke is installed?
> 
> Googling for answers to the question I found this (crank?) web site:
> https://www.lessemf.com/cellphon.html
> Looking at their snap-on ferrrite bead I have a feeling that the
> installation shown on the right is actually ineffective?
> The routing looks to be pretty-much non-inductive.

Yes, that is stupid.

Multiple passes thru a bead can increase effectiveness (somewhere between N and 
N squared), but only if they all pass thru the bead in the same direction.

-- 
  John Kasunich
  jmkasun...@fastmail.fm

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