[Hidden-tech] Any RF experts out there?

[Tom Kopec]

Why don't you post the question on the sites you quoted and see what 
they have to say? They seem to have and army of "experts". They kind of 
lost credibility with me when I got to the quote :
"Even if you don't use a cell phone and your home is wireless-free, you 
can be exposed to microwave radiation from your neighbor's wireless 
devices.."

That's just plain sensationalism.

The quote:
".. because the SAR rating has nothing to do with the non-ionizing 
radiation emitted.." is flat wrong. I have serious problems with the use 
of SAR in rating phone safety (see below), but SAR most certainly deals 
with non-ionizing radiation - that's what RF is.

So, unless you already wear a tinfoil hat, I'd take these articles with 
a large grain of sea salt. Just don't keep your cellphone glued to your 
ear (or hand, in the case of a smartphone) all day, and if you've 
decided to replace your landline with cell, get a wired headset. Simple 
precautions such as this will have a far greater impact.

That said, you'll probably end up with less harmful cellphone exposure 
if you are using a carrier that has good coverage where you will be 
using your phone. All cellular technologies (as far as I'm aware) adjust 
their power output based on need.

(my background: in 1980, my assigned final paper topic in Microwave 
Engineering II was "Microwave Radiation Hazards". In researching it I 
found that, even then, the use of SAR-like metrics was considered by 
many to be an inappropriate measure of hazard even for some 
continuous-wave emissions.)

...tom


On 10/17/2011 4:55 PM, Yadim Medore wrote:
>
> I'm curious if any of you saw this report:
> http://electromagnetichealth.org/wp-content/uploads/2011/05/Cell-Phone-Radiation-and-Health-Recommendations.pdf
>
> A summary is found here as well:
> http://emf.mercola.com/sites/emf/archive/2011/06/18/finally-experts-admit-cellphones-are-a-carcinogen.aspx
>
> It suggests that GSM phones (like AT&T and T-Mobile) can emit about 28 
> times more RF radiation than their CDMA counterparts (like Verizon and 
> Sprint); that CDMA phones have lower radiation in their signaling 
> technology, vs GSM which issue a high power pulsing technology.
>
> I'm less concerned about getting into a discourse in whether one 
> believes that RF or EMF radiation is safe, and would like technical 
> clarity on the following:
>
> Modern GSM networks employ W-CDMA on their 3G Networks. Would this 
> actually mean that AT&Ts 3G Network has the same more continuous wave 
> as a traditional CDMA?
>
> And to the corollary, when off of Verizon or Sprint's 3G Network, 
> would those GRPS networks emit a higher pulse signal like AT&T's GSM 
> Edge Network?
>
> This article seems to suggest that W-CDMA is safer than UMTS, but I 
> thought they were one the same thing.
> http://blogs.mercola.com/sites/vitalvotes/archive/2011/06/10/what-is-the-safest-phone-carrier-to-use.aspx
>
> Thanks!
>
> Yadim
>