any update on GSM interference issue

Al Johnson openmoko at
Tue Aug 5 19:38:48 CEST 2008

On Tuesday 05 August 2008, arne anka wrote:
> > The ferrite is increasing the common mode inductance of the cable
> > because the
> > ferrite has a better magnetic permeability than air. Taping the ferrite
> > to
> > the cable is a bit like a half turn on a ferrite rod. It will still
> > affect
> > the inductance, but not as much as if it went through a ferrite ring.
> anything to pay attention to in particular (size, color,  taste or smell
> ;-) or just using one that fits?

Given the less-than-scientific application, probably just one that fits ;-) My 
electronics experience doesn't go beyond audio frequencies though, so don't 
believe a word I say once it involves RF!

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