> -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > On Behalf Of Virgil Bierschwale > Sent: Tuesday, May 22, 2007 12:10 PM > To: [EMAIL PROTECTED] > Subject: RE: [NF] Cities struggle with wireless Internet > > There has always been problems with rf. > The difference is military and other commercial rf is high power, > typically > more then 1,000 watts. > > Wifi, cell phone, wireless phones are typically less then 5 watts > > The higher power stuff will physically burn you if you're exposed to it > when > transmitting, but the lower power stuff is harmless in my opinion. > > Virgil Bierschwale > http://www.bierschwalesolutions.com > http://www.jobsforourfuture.com/index.php >
Anybody guess what a 700 watt 2.45 Ghz transmitter is used for? Most of us have them. Virgil, don't give it away. My 2 cents: I carry on conversations with people half way around the world using less than 5 watts. It's called QRP in case you are interested. In order to receive the waves that far away, you need an antenna that is the correct length to resonate. A full wave antenna for your 2.5 ghz wireless system would be about 29". Half a wave and a quarter wave will resonate also. I believe that any conductor 29" or 14.5" or 7.25" will resonate. I further believe that anything in your body (nerves or blood vessels) at those lengths will resonate and create heat better than other lengths. Although the affect is minimal based on the power and distance from the transmitter, I think it has an effect and I act accordingly. For several years the ham radio license tests have included radio frequency safety. I have noticed my ear getting hot when talking on the cell phone for extended times and have switched to a headset for those calls. This is my understanding of the affects of radio waves and may not be anyone elses. Jeff Jeff Johnson [EMAIL PROTECTED] 623-582-0323 Fax 623-869-0675 --- StripMime Report -- processed MIME parts --- multipart/signed text/plain (text body -- kept) application/x-pkcs7-signature --- _______________________________________________ Post Messages to: [email protected] Subscription Maintenance: http://leafe.com/mailman/listinfo/profox OT-free version of this list: http://leafe.com/mailman/listinfo/profoxtech Searchable Archive: http://leafe.com/archives/search/profox This message: http://leafe.com/archives/byMID/profox/[EMAIL PROTECTED] ** All postings, unless explicitly stated otherwise, are the opinions of the author, and do not constitute legal or medical advice. This statement is added to the messages for those lawyers who are too stupid to see the obvious.
