Re: Computer shielding (cont'd)

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BiBrun

Re: Computer shielding (cont'd)

I have had success using fabric to block some RF frequencies.
Veilshield is good for a monitor, but very thin, almost delicate.
But I've stopped using it (my 15" LCD is TCO certified (which unfortunately
isn't too strict regarding RF), and I keep it over 2 feet away--but maybe I
should shield it). I've
also used "high performance silver mesh"
<http://lessemf.com/fabric.html#1222>
on an LCD TV, and it made a measurable difference. However, the trick
was to keep at least 1 cm between the shield and the surface of the screen.

Unfortunately after a while these get annoying to look through. Clear
shield
is nice to look through (if you're always careful not to scratch it) but I
don't
think it is very effective... although maybe if you attached it to glass and
put that an inch in front. Scotch tint might be better if you can get 50%
amber.
Bruce says UV window film works, but I don't have specifics. Any low-E film
should be good, or low-E glass.

With the keyboard, it's tough, unless you're affected by the ELF electric
field (which some keyboards have, but quality ones mostly don't).
Don't use a laptop keyboard or touchpad obviously. With RF, you need some
separation on both sides of the shields for it to work, and with your
fingers right
there... lessEMF sells gloves which I did like for a while.
If you can find a keyboard with tall keys, that's a plus. I think the
kensington
"keyboard for life" is better than most RF wise, but I prefer this old IBM
"model M" (71G4644).

Mice are hard too. If you do try shielding you'll need to ground it (unless
you're
just blocking bluetooth or wifi microwaves), and you'll want a dedicated
ground rod
connected to a short RF grounding strap. And note that with a single ground
rod
you can probably still get electrocuted if your shield touches a hot power
cord.
With multiple ground rods the resistance can be low enough to trip the
breaker.

If you are running on battery then a shield that contains something and is
grounded to
the cable shielding connecting to the computer might work.

Bill

On Thu, Oct 16, 2008 at 5:03 PM, jaime_schunkewitz <
[hidden email]> wrote:

> If it's ELF that bothers you then the screens
> you mention won't help. Though it's probably
> the RF that's causing the damage.
>
> I have veilshield covering my LCD monitor.
> It doesn't do crap to reduce the RF, at least
> that's what my meter and my symptoms says. But
> I keep it there anyway.
>
> Remeber that shielding can work for or against you.
> There's a lot of trial and error involved.
>
> Eli
>
> --- In [hidden email] <eSens%40yahoogroups.com>, "Aline" <haikuron@...>
> wrote:
> >
> > Hi,
> >
> > My computer is way more comfortable now I have moved the battery back-
> > up and tower far away but I still feel invaded by what I presume to
> > be ELFs from my screen and keyboard. I've ignored it for months even
> > though I feel very drained and tense after using the computer for
> > less than an hour but now my body has decided to make me take notice
> > by giving me back pain (only when I sit at the computer - and it's
> > not the chair!).
> >
> > So now I am wondering what shielding to use. Looking at the SPECTRUM(R)
> > Contour Filter, the DELUXE CENTER-MOUNT ANTI-RADIATION SCREEN and
> > also considering just using Clear-Shield to cover the monitor screen.
> >
> > Is it advisable to cover the back with some shielding cloth too and
> > what about using VeilSheild to cover the keypad?
> >
> > Does anyone have any advice based on their own experince with these
> > products?
> >
> > Thanks,
> > Aline
> >
>
>
>

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