Posted on 05/21/2015 6:14:11 PM PDT by Kaslin
Yes, we do. Some of us work for companies who spend tremendous $ on research and testing to show it doesn’t.
Sigh. A little knowledge can be dangerous.
They are limited to 1/4 Watt (+24 dBm) transmit power, and EVERY single cell phone for sale in the United States (and every other wireless device in contact or in proximity with humans) has to, by law, go through Specific Absorption Rate and Maximum Permissible Exposure Testing. I know-- I supervise those tests for my own company, for whom I design wireless transmitters and receivers.
Killjoy. ;-)
Yes, that was at 10 and 24 GHz, with antenna gains of up to 20 dB (horn antennas). Also, back then, the receivers were so insensitive that the transmitter had to put out 0.1 Watt just to get a readable return signal off a car passing in front of the cop. (My senior design project in college was a doppler radar, and I worked in ELINT/EW/radar for 11 years... I know this stuff.)
But you make a point: radiated emissions is one reason most police no longer use radar, but use lidar (laser radar).
Spread spectrum is supposed to allow multiple users to share the same channel, but it doesn't work too well in close proximity; there is still interference.
Try getting an directional antenna that points your router's "beam" in one direction, and make it the most "lived in" part of your house.
If our putative aliens on Alpha Centauri had a dish the size of the one in Arecibo, Puerto Rico, and we could line the dishes up for a short time, we MIGHT be able to communicate. Maybe. With the right signal.
But not video.
...maybe that’s what happened, she put her head in her microwave.....lololol.....
Putting up a very long, low antenna here in the middle of nowhere, as soon as the rain and snow stops. Looking at a chart to make it either full wave or half wave for 80m (trying to adjust length for 40m, too). But that will only transmit whatever little power straight up from a 10-watt radio. Not many usable repeaters for higher frequencies around here.
Actually, Lucille Ball seriously alleged she could pick up radio over the chopper net, later in life.
Yup, thanks, good points.
First thing I thought of. LOL.
Interesting. Or should I say “fascinating”.
Would any of our terrestrial broadcasts of the past 50 odd years be able to penetrate 10 or 20 light years without being lost in background noise? AM, FM, shortwave?
Frequencies can affect people.
Find a resonating frequency with enough power, around a piece of glass or crystal sometime.
A burning laser that injures or destroys something operates on a frequency. A therapy laser that heals operates on a different frequency. Certain radar frequencies can fry birds in the air with enough power behind them. Other devices that emit frequencies can screw up navigation.
Sond waves are just different frequencies than light, on microwave, or gigahertz frequencies. Just wavelengths of energy in a different frequency range. Why there cannot be a small minority of people that are overly sensitive to radiation in the gigahertz bandwitdh, to dismiss all of them as loons, is ridiculous.
The cell phone companies now know and warn people about cellular radiation (frequencies the phones use) and brain cancer. How long did it take them to finally come around and agree with the data that had been accumulating.
Yes Gilligan too but Lucy told the story of it happening to her as a joke.
http://www.snopes.com/radiotv/tv/fillings.asp
Who said anything about oven design and safety interlocks? Compare a >3 yo oven to what that woman is complaining about. Microwave ovens never leak? Net outputs that are negative dB over Wi-Fi transmitters? If that was true I wouldn’t have to find, measure and account for ovens in heat maps when designing Wi-Fi networks to avoid outright jamming and throughput-reducing interference.
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