Quote:
Originally Posted by sirmaru
Since this topic came up, I placed a 9V battery inside my Lutron EMF 822-A detector to run these tests: ...
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But those tests do not take frequency into account, and different frequencies have different penetration and absorbsion characteristics, and different biological effects.
It can also be important to take into account whether the EM radiation is a broad spectrum source (like heat or sunlight) or a coherent beam (like a laser or a radar beam).
And for biological effects, the MODULATION of the carrier wave can also be important (and especially aperiodic/syncopated pulse rates), but amplitude attack and decay, and frequency variations, can also be important when studying biological effects.
It is not as simple as turning on a meter and reading some magic numbers, like the Scientologists like to do with their fancy E-Meter.
Holding an EMF detector too close to an RF source does not give valid measurements unless you use an antenna/detector probe designed for that. The typical log-periodic antenna used on these devices is primarily effective for measuring background EMF and not nearby point-source EMF.