Posted by R. Ticle on
URL: https://www.es-forum.com/Doing-an-EMF-survey-for-someone-correctly-how-tp1549092.html

Hey everyone,

We have access to a Trifield 100XE, and two Gigahertz Solutions meters for RF, covering a range of 800 MHz to 6.0 GHz. Oh, and a body voltage meter.

Now, I'm quite comfortable using these meters to gauge a particular location for my own tolerances; I know what I'm comfortable with or not, and have always based that on the equipment with which I'm familiar.

However, my father may be doing a small, payed EMR survey of someone's house, soon. I think the Gigahertz solutions meters are quite accurate for their price, without going into very expensive high end equipment. I think the body voltage meter is fine, too.

The Trifield is what I'm a bit unsure about. I once compared it to a Gigahertz brand Gauss Meter, and the Trifield showed considerably higher readings for magnetic fields than the Gigahertz meter. Would someone mind explaining to me again the discrepancy between these two?
I think Bill Bruno said that the Trifield's magnetic setting also takes into account higher frequencies above the standard 50/60 Hz AC that the Gigahertz is calibrated for, hence the higher readings...something like that, butI can't quite recall clearly.

How does this translate to accuracy, if we're giving someone a measurement and caution based on that measurement of magnetic fields using the Trifield100XE?

Also, what are your opinions of the accuracy of the Trifield 100XE's electrical field readings? I know that the meter made by Gigahertz Solutions has to be grounded to read electrical fields, and because I've always used a Trifield, that's what I base my readings on; its familiarity, but it makes meconcerned about accurate reporting to someone who's unaccustomed to this sort of thing.

Now, for measuring RF, my method is basically point and shoot and sweep through rooms and outdoor areas to determine overall levels, and find sources of hotspots/direct radiation. I always have the meter set to "Peak" ratherthan "Average" mode for greater accuracy, and frequently use the audio analysis. I find this works well for me, but are there any additional techniques my father should take into account during a survey?

(We're not trained Building Biologists, and haven't got any other gear, butwould like to do a good job).

I am thinking of comparing what my father finds at this place to the Bau Biologie guidelines. Sound good?

Any help is appreciated.

Thanks!

R.