>
> I thought that since 2000 or so linear power supplies
> are basically illegal (due to their poor efficency) to
> sell with electronics.
>
> You're right that the Stetzer gets rid of differential mode only.
> Question is why does the common mode convert back to
> differential mode further away?  Most likely because of
> differences in capacitance to ground on the hot versus neutral.
>
> This doesn't surprise me, but it's also possible you have direct
> neutral to ground connections somewhere (other than the
> panel I mean... I suppose the signals could be bouncing back
> at the panel which might also explain it?)  This might be
> worth finding and fixing.  Easy to test at the panel if you can
> remove the ground or neutral bus bar without getting ill
> from the meter.  Maybe better if you can find a young cheap
> electrician to do it.  You can also have them check for
> connections between neutral wires.
>
> Or just open up every switch box that might have two circuits
> live in it and separate the grounds (and the neutrals if they
> are tied).  You'd be surprised how removing a ground loop
> can reduce the fields throughout the house.
>
> BIll
>
> On Thu, Feb 10, 2011 at 8:16 AM, jaime_schunkewitz <
> jaime_schunkewitz@...> wrote:
>
> >
> >
> > I finally have clean electricity again, after
> > replacing the Motorola cable modem (Model SB5101U)
> > that Comcast provides. I'm using a Linksys
> > CM100-T1. The Motorola pegged my Entech powerline
> > noise analyzer (180 @ half sensitivity), while the
> > Linksys adds nothing to the reading. It even comes
> > with an analog 9v AC/DC power inverter.
> >
> > Here's an anecdote about using shunt capacitors as
> > filters. One capacitor brought the reading from 180
> > to single digits when plugged in and measured at the
> > same receptacle as the modem. However, at other
> > receptacles in the house I still measured the same
> > elevated readings. And the capacitor had no effect
> > on reducing the levels of AM radio noise.
> >
> > These so called filters appear to short out the higher
> > frequencies and quench differential noise at the
> > receptacle, however seem to push the noise elsewhere.
> > Just an observation.
> >
> > Eli
> >
> >  
> >
>
>
> [Non-text portions of this message have been removed]
>