How close to cell transceiver is safe?

But, I do think so. It's Claude Shannon's theorem, of communication in a noisy channel; the information transfer is less than or equal to the signal to signal-plus-noise ratio times the bandwidth. A thrifty RF engineer will choose the right power level for the task.

Thrift is a different concept when one station's cost is kilobucks per gram. Data rates and latencies aren't symmetric there, either.

Yes, the multiplicity of channels (hundreds into a cell tower, one into a cell phone) makes such a higher field strength at the tower likely.

The existence of standards isn't evidence of the existence of risk. Standards for low-level RF are typically more of a political issue than medical or scientific. Politicians are pressured by the public to "do something" about the ridiculous claims of fear-mongers. Then a review of existing research is done, and the standard is arbitrarily selected to be so low that nobody whose name is associated with it can be accused of endangering the public safety.

Look at all the hoopla about "power line radiation" and "Low Emission" CRTs started by one idiot (Paul Brodeur) writing in the New Yorker. The "studies" he quoted were junk science at it's worst, yet the general public (and all too many "science reporters") couldn't tell that and started worrying.

Similar situation now with cell phones. The recent MRI study is classic junk science... it's clear the researchers were totally clueless about what they were doing (tested cell phones *receiving* calls, not transmitting), but apparently nobody in the media picked up on this little detail!

Best regards,

Bob Masta DAQARTA v6.01 Data AcQuisition And Real-Time Analysis

Scope, Spectrum, Spectrogram, Sound Level Meter Frequency Counter, FREE Signal Generator Pitch Track, Pitch-to-MIDI Science with your sound card!

neither is it a proof that risk dosnt exist. standards are often neutral. so your point is?

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http://www.skepticalscience.com/
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What's the difference between a cell phone "receiving calls" and "transmitting"?

Well, when it's "receiving," it's receiving, and when it's "transmitting," it's well, transmitting.

Hope This Helps! Rich

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mW = milliwatts