>
> I also have the feeling (but can't say for sure) that
> all these wireless networks in my workplace (I can see 24 stations
> emitting) are causing these headaches to be even worse...
I'm the company's SME in RF and Wireless technology and have a few sweet
little tools to test (and search for) sources of RF Interference. I won't
pretend to know half as much as some of the experts here.
That said, it is actually highly likely that you do sense and are
experiencing issues with microwave radiation. If you use a cell-phone,
you're getting an especially intense dose right next to your head. Use a
microwave oven? Same thing. How about some cordless phones? Yup. 2.4gHz
Wifi? Yup. What do most of the above have to do with anything? They emit
radiation at or near the frequency where water molecules vibrate.
Would anybody care to know how much RF radiation is being emitted from our
digital cameras? Computers? Laptops located down near our crotches?
I've spent many a day wearing dosimeters and every time it makes me
wonder...
As to building an RF safe room, this is actually pretty easy and many
high-end recording and broadcast studios have substantial screening. When
constructing or remodeling a house, you can shield and ground an average
sized room giving about a 20dB drop for about $1500 USD in materials. 40dB
of attenuation will cost about $20000 USD in materials. To effectively get
this isolation, you will need to isolate the electrical outlets through
transformers which may or may not violate building code.
We built a recording studio one time where we had absolutely no AC
electricity within 25 feet of the sound-stage and the RF shielding was not
room based, but an active RF noise masking system was installed on the
perimeter of the building. The only time I've ever experienced silence like
that was in an old copper mine in Michigan.
AG
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