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k-man
Gym climber
SCruz
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Topic Author's Original Post - Dec 3, 2010 - 03:21pm PT
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My friends don't allow wireless in their house, they say the radiation kills them.
They are serious.
Would your day be significantly different without wireless communication?
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caughtinside
Social climber
Davis, CA
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my balls might not tingle so much from the laptop?
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Jingy
climber
Somewhere out there
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that science is still out...
not sure if "wireless" anything is damaging enough to actually cause damage that is noticable over a single lifetime..
But that's just my opin
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Jaybro
Social climber
Wolf City, Wyoming
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All that unsolicited porn wafting through the brain can't be good...
Caught, did you get your crib back?
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flakyfoont
Trad climber
carsoncity nv
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k-man, do your friends have a microwave oven? some cell phone , wireless devices are in the 2.4ghz to 5.4ghz range . look at the model/serial # tag on microwave ovens for the frequency and power level outputs. 600mhz,800mhz, 900mhz, 1,2ghz up to 5.4ghz, and power levls up to 2200watts. we dont put these ovens up next to our heads, like we do cell phones, and cell phones out puts are usually 200-500 milliwatts.
I used to use a bluetooth on my ear, and got bad headaches on the side of my head . i changed ears with the bluetooth, and the headache also changes sides. Since I have ceased bluetooth ear devices , my headaches have also ceased. I have a commercial FCC radio license, and have been microwave certified since 1975, I have never been diagnosed (yet) with any cancers.
But i know better than to stand in front of a waveguide,or rhombic antenna
during transmission. Microwave energy can cause tissue damage , and RF burns can be nasty, but phone manufacturers say this is not true, at low power levels. Sorry for the long tirade with a moot point.
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Jaybro
Social climber
Wolf City, Wyoming
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Maddona Is LEB.
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WBraun
climber
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K-man -- "My friends don't allow wireless in their house ..."
I put mine on the roof. You definitely don't want it next to your computer like lots of people do.
That's plain stupid.
I have a commercial grade wireless setup that allows the wireless router at a remote location by being powered over the Ethernet cable, poe.
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Captain...or Skully
Big Wall climber
leading the away team, but not in a red shirt!
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Madonna is the LEB? Well, THAT explains a lot.
Wireless signals are everywhere....there is no escape.
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crøtch
climber
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Hey DMT,
I work with a bunch of former Navy fire control guys. They fix my machines, and they are all badasses IMO. Props.
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Jaybro
Social climber
Wolf City, Wyoming
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It is, however another chain that we proletariat must ultimately deal with.
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Shack
Big Wall climber
Reno NV
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Your friends should be fine as long as they keep their tinfoil hats on.
Me, I probably get dosed occasionally with the X-rays from the EBT CT scanners I work on everyday.
RF radiation is the least of my concerns.
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Jaybro
Social climber
Wolf City, Wyoming
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This guy does not worry about electromagnetic fields;
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WBraun
climber
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Most consumer grade wireless routers operate a 2.4ghz the same frequency as your microwave oven although at very low power.
Usually around 100 to 150 milliwats.
Now that's continuous on time. Not that it's running for a few minutes.
If it's close to where you are living 2, 3, 4 feet for extended periods you are being "cooked".
Most guys in the commercial wireless business will never want an antenna radiating that close to their heads for extended periods.
If one wants to disagree then be my guest and you have my blessings to go fry your brain ...... :-)
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TGT
Social climber
So Cal
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If it's close to where you are living 2, 3, 4 feet for extended periods you are being "cooked".
Well, more like having a flashlight pointed at you continuously.
Although for purely operational reasons it doesn't make sense to have it siting on top of your puter.
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Mike Bolte
Trad climber
Planet Earth
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thanks for the interesting post DMT.
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Ed Hartouni
Trad climber
Livermore, CA
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cooked?
really Werner, you know better...
cooking with microwaves means exciting the molecular rotation resonance of the "food," where the food contains polar molecules with large dipole moments... that is, it acts like an antenna tuned to a particular frequency, 2.45 GHz is a typical frequency corresponding to water. That resonance has a "width," a frequency range that it shows the largest effect, probably not greater than 10% of the frequency value (but a quick look on the web didn't pop it out).
That means that once you are off the resonant frequency, you don't cook anymore. The difference between solid water (ice) and liquid water is easy to demonstrate in your microwave, it's hard to melt ice in one...so a small shift in the dipole frequency has a large change in how much energy is absorbed.
Moving the molecules around heats the "food." I put food in quotes because human bodies are like the meat you might cook in one of these things.
Now a WiFi station does transmit in the region of 2.4 GHz (because it is local and can tolerate energy loss to atmospheric water vapor, this frequency region is not used for long range communication) but the WiFi uses a spread spectrum transmission mode, spreading its transmissions over a variety of frequencies, but the total power radiated over these different frequencies is of order less than 100mW (that's one tenth of a watt, your microwave oven produces 700 W of microwave power, about 10,000 times more power, and on a frequency designed to cook).
Aside from cooking, there are no documented problems with microwave exposures, especially at low levels. With large power output, the antenna may "leak" power into many frequency bands some of which overlap molecular resonances, with enough power you might cook, but this is for very large power output, not those typical for your WiFi station....
...or cell phone, which work on many of the same principles, though the frequencies are different.
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WBraun
climber
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I when I said "cooked" it was a broad street slang for being harmful.
Lot a guys say that.
But I like I said previously, if you believe there's no harm in sticking a continuous radiating 2.4ghz xmiter near your head for long periods daily then be my guest.
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Ed Hartouni
Trad climber
Livermore, CA
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but "cooking" is what you'd have to be worried about...
...what else is going on Werner? you got references? or just being cautious
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WBraun
climber
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The effects of the EMF, electro-pollution are cumulative.
It does affect the nervous system.
You'll see, stick it in close proximity to your head for the next 2-3 years where you sleep Ed.
You're a scientist, do the test on yourself .....
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