On Tuesday 08 May 2018 07:27:31 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, the right hand pix has very little effect. There is little to be gained there. However, longitudinal effectiveness can be enhanced by makeing a multiturn coil, where every "turn" is a full circle and you have room in the core opening to pass several turns of the wire. And at $4.95 a bead, that site has a huge profit margin. -- Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
