Posted on 05/21/2015 6:14:11 PM PDT by Kaslin
Wi Fi sickness. And I’m finally getting over Pac Man elbow! ;)
I design radio transceivers for a living, on the 450, 900, and 2400 MHz bands, for over 20 years. Ask questions if you like.
Please identify the particular model of microwave oven that is "not well shielded". You probably can't, because there aren't any more. Most are extremely well shielded and have sophisticated interlocks that shut down the magnetron (the transmitter) if you even try to open the door.
“Full episodes of I Love Lucy are still on their way out into the Universe....”
Splainin to space aliens there is no intelligent life on earth.
“I design radio transceivers for a living, on the 450, 900, and 2400 MHz bands, for over 20 years. Ask questions if you like.”
Thanks. I may take you up on the offer sometime.
If only I could get my wifi signal to quit bouncing in and out. It’s better now but for some time it run fine for a few days but then suddenly would fall from 25 mpbs to less than one. Forcing a channel change would cure it for a few days. I blame Verizon but the claim innocence.
Full episodes of I Love Lucy are still on their way out into the Universe....
Somewhere on an alien planet orbiting an alien sun the inhabitants are pondering the meaning of “Babaloo”.
The sickness here is SICK LAWYERS. There I’ve said it SLEAZY GOOD FOR NOTHING ATTORNEYS.
America is SEVERELY over laywered!!
Frequencies can affect people.
Some are music.
some are visible
Some are infrared and make you feel warm Or give you a nice tan.
Some are microwave frequencies and cook food and can burn you.
I don’t doubt that a small percentage of people can be affected by crtain frequencies that most people are not bothered by.
We recognize people with sever problems with exposure to light, some people can taste colors, some people can taste words - brain wiring does this - so it is not incredible that certain frequencies could bother a smal number of highly sensitive people. I believe it can hapoen. Lok at how long cel phone makers enied a link to brain cancer in heavy cell users.
Yeah, that was pretty funny about AM. Worm-waves! Socialist political volks should run that 12-6 cm real close to their brains, 24/7. Even 2m can get ‘em. For the wise,...
RF Safety Compliance Calculator
http://www.wirelessconnections.net/calcs/rfsafety.asp
For blowhards,...
Vacation to Venus (scroll down)
http://www.gutenberg.ca/ebooks/kornbluthcm-marchingmorons/kornbluthcm-marchingmorons-00-e.html
Me? I’ll keep the antennas pointed away from me.
Do we actually know that these radio waves have no affect. Look at our country. We have nation on imbeciles. there might be a correlation with 100 years of increased radio waves and the current progressive/socialist takeover./s
RF exposure can indeed be hazardous. There’s been cases of Cops frying their nuts keeping speed radar guns in their laps - still, that’s up in the GHz range admittedly.
Nevertheless, typical radio freqs can be harmful depending upon the signal strengths and separation distances involved.
It’s interesting that in USSR days their specs for such things were far tighter than ours.
Dangers of an indoor antenna.
http://www.eham.net/ehamforum/smf/index.php?ehamsid=rn5709f1d5rcobli7r9s9nibb1&/topic,81271.0.html
RF exposure question
http://forums.qrz.com/showthread.php?278460-RF-exposure-question
Woops, forgot this link to FCC site:
https://www.fcc.gov/guides/human-exposure-rf-fields-guidelines-cellular-and-pcs-sites
The originally "I Love Lucy" episodes are now so far from Earth (63.57LY), and the signal-to-noise ratio is so low, that no physically-realizable receivers that could be built (with the physics and engineering we know, granted) out there to receive them.
NONE. Even if "I Love Lucy" was transmitted with 1 Megawatt on VHF TV Channel 6, and our Aliens built an antenna dish in orbit 100 km in diameter (gain 97.3 dB @87.8 MHz) pointed straight at us, the free-space path loss is so incredibly high (366.9 dB @63LY @87.8MHz), the signal would be so weak (-199.6 dBm), that there would be no possible way to detect the signal in the 6 MHz-wide channel (thermal noise floor -125.8 dBm @-270C), even if you immersed the receiver's first amplifier stage in liquid helium. You need at least 50 dB SNR for studio-quality video, and roughly 20 dB for snow-filled ghosts, and you've got -73.8 dB SNR.
Just can't do it.
Even fictional Alpha Centaurians couldn't have seen the first "Lucy" episode in 1955; they'd receive it on their 62-mile-wide orbital dish at about -176.2 dBm, which gives them a non-usable -50.4 dB SNR (remember, they need +20 dB SNR for snow-filled reception).
So, why do cell phones and GPS work at low SNR's? Unlike modern GPS and cell-phone signals, black-and-white NTSC transmissions do NOT include any features that could be used to mathematically "correlate" them from underneath the galactic noise floor.
If the Aliens aren't in our Solar System, they aren't going to see TV transmission.
WiFi transmit time, power limits (government rules), and antenna gains are well known.
These people are faking it.
No. Read my #37. No alien civilization on ANY star system (including Alpha Centauri) can receive black-and-white NTSC TV transmissions. NONE.
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.