Matt, While I agree power level is governed by the inverse-square law so power dissipate very quickly, but being close is relative and I think it will be interesting to see unintentional additive power on the same wavelength from difference RF sources. Although i'm not worry about "RF causing cancer" kind of news in the media everyone once in a while someone come up with but I understand with very high power RF once can burn his or her skin, like the cornea of the eyes you mention below (which is interesting but i didn't thought of before) which cause indirectly by heat. It will be interesting to see someone do study over a period of time for an average American RF exposure at difference power level and relates/negate it to the over-expose with sunlight/uv which we know to cause skin-cancer.
-bn On Thu, Aug 20, 2009 at 3:49 PM, Matt Fanady<[email protected]> wrote: > Its really only dangerous when you're up close, and even then, its not > dangerous as in "its going to give you cancer" dangerous, the most > vulnerable part of your body to high power high frequency RF is the cornea > of your eyes. This is because RF generates heat when it comes into contact > with organic material, the same way a microwave oven generates heat. The > cornea lacks sufficient blood flow to carry this heat away, so they are the > first thing to "cook". But this is only true when you're very close to the > source, and even then, the risk is minimal. > > -M@ > > On Thu, Aug 20, 2009 at 3:34 PM, <[email protected]> wrote: >> >> Hi Bao. >> >> The cellular equipment you found is an example of a major RF transmitting >> facility under the jurisdiction of the FCC. >> Typical facilities include radio and television broadcast stations, >> satellite-earth stations, experimental radio stations and certain cellular, >> PCS and paging facilities. >> >> The warning sign you found helps define a keep-out area near the transmit >> antennas such that unknowing persons are protected. >> >> These facilities are required to undergo routine evaluation for RF >> compliance whenever an application is submitted to the FCC for construction >> or modification of a transmitting facility or renewal of a license. >> Failure to comply with the FCC's RF exposure guidelines could lead to the >> preparation of a formal Environmental Assessment, possible Environmental >> Impact Statement and eventual rejection of an application. >> Technical guidelines for evaluating compliance with the FCC RF safety >> requirements can be found in the FCC's OET Bulletin 65. >> >> In short, the keep-out areas provide a safe buffer away from strong >> transmitters. >> The cell transmissions from different nearby basestations are not really >> additive. They transmit in different bands, or on different channels within >> those bands. >> >> Hope this helps. >> >> Regards, >> >> Brian C. Gallagher >> RF Hardware Engineer >> Vehicle WLAN Development >> >> DENSO INTERNATIONAL AMERICA, INC. >> North America Research Laboratory-California Office >> Tel (760) 597-7431 >> [email protected] >> >> >> >> Bao Nguyen <[email protected]> >> >> >> Bao Nguyen <[email protected]> >> Sent by: [email protected] >> >> 08/20/2009 01:41 PM >> >> Please respond to >> "SoCalFreeNet.org General Discussion List" <[email protected]> >> >> To >> "SoCalFreeNet.org General Discussion List" <[email protected]> >> cc >> >> Subject >> Re: [SCFN] Cell phones and RF/microwave radiation are identically >> carcinogenic and genotoxic >> I understand RF has always been here since the root of life and I >> don't see any problem with them. But here's the question I have. I've >> been to places where there's a cell equipment nearby, the ladder >> leading up to it have a FCC warning, something to the fact "high-power >> RF electromagnetic." Anyone care to explain what are these for and >> what happen when adding enough of them in a city block, would that >> change the "small exposure" to larger and how can one quantify the RF >> exposure level? >> >> thanks, >> -bn >> >> >> >> On Wed, Aug 19, 2009 at 11:15 PM, Matt Fanady<[email protected]> wrote: >> > RF radiation is a "non-ionizing" form of radiation and does not cause >> > cellular damage in small exposures. It is no more dangerous than >> > visible >> > light. You of course realize that visible light is the same thing as >> > RF, >> > just at a higher frequency right? Please take your flame-bait >> > elsewhere. >> > >> > -M@ >> > >> > On Wed, Aug 19, 2009 at 10:20 PM, Robert Broska <[email protected]> >> > wrote: >> >> >> >> Because gamma waves and RF/microwave radiation are identically >> >> carcinogenic and genotoxic to the cellular roots of life, the safe dose >> >> of >> >> either kind of radiation is zero. No study has proven that any level of >> >> exposure from cell-damaging radiation is safe for humans. Dr. Carlo >> >> confirms >> >> that cell damage is not dose dependant because any exposure level, no >> >> matter >> >> how small, can trigger damage response by cell mechanisms.8 >> >> >> >> >> >> >> >> This is quoted from the extensively footnoted site: >> >> >> >> http://www.globalresearch.ca/index.php?context=va&aid=7025 >> >> >> >> _______________________________________________ >> >> SoCalFreeNet.org General Discussion List >> >> To unsubscribe, please visit: >> >> http://socalfreenet.org/mailman/listinfo/discuss_socalfreenet.org >> > >> > >> > _______________________________________________ >> > SoCalFreeNet.org General Discussion List >> > To unsubscribe, please visit: >> > http://socalfreenet.org/mailman/listinfo/discuss_socalfreenet.org >> > >> >> _______________________________________________ >> SoCalFreeNet.org General Discussion List >> To unsubscribe, please visit: >> http://socalfreenet.org/mailman/listinfo/discuss_socalfreenet.org >> >> _______________________________________________ >> SoCalFreeNet.org General Discussion List >> To unsubscribe, please visit: >> http://socalfreenet.org/mailman/listinfo/discuss_socalfreenet.org > > > _______________________________________________ > SoCalFreeNet.org General Discussion List > To unsubscribe, please visit: > http://socalfreenet.org/mailman/listinfo/discuss_socalfreenet.org > _______________________________________________ SoCalFreeNet.org General Discussion List To unsubscribe, please visit: http://socalfreenet.org/mailman/listinfo/discuss_socalfreenet.org
