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RF radiation in the walls?
July 14, 2019
4:04 pm
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Dean
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July 14, 2019
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Hi!

Recently I have discovered that I am sensitive to EMF radiation, so I ordered the TF2 meter, and it has helped me tremendously. However, there is something I have just realized that confuses me. I was hoping you could help me figure it out.

I live in an apartment, top (5th) floor. Most problematic for me was the Electric field from the wall behind where I sit while I work. Therefore, I covered it entirely with aluminum foil as a proof of concept to see what will happen until I decide to go with the shielding paint. The effect on the electric field was huge – I got it down from at least 1000 V/m to around 30 with TF2 pressed directly on the wall.

However, the field RF value is still at least over 1.500 mW/m2 when I press TF2 directly on the surface while holding it, which I believe is even more than it was before I applied the aluminum foil to that wall. Moving the TF2 away from the surface to about 3 cm distance drops the value to around 0.900 mW/m2.

What is more strange is that the other (unshielded) side of that wall only shows readings of field 0.350 mW/m2 when pressed directly against the surface, and around 0.250 mW/m2 with 3 cm distance.

Here are some key points:
– The wall is grounded to a radiator pipe.
– The WiFi is turned off.
– There are antennas on the top of the building, but placing TF2 close to a ceiling doesn’t show any extreme – values (they are around 0.200 mW/m2).
– No microwave.
– The cellphone was outside of the room.
– No smart-meters.
– This is the only wall that is currently shielded in the apartment. The other side of the wall is not.

I also did a little experiment on the building I live in. I went downstairs from the top floor and measured the RF while leaning TF2 against the walls, one floor at a time. The levels were progressively getting lower and lower, and when I reached the basement, it was flat zero.

My experience is shallow in this area, but my best guess is that the walls are conducting the RF field. I don’t even know if that is possible, though. But why would the shielded wall produce the highest RF reading?

What do you think? Do you believe that shielding the entire room would drop those levels? Right now, I am worried that if I shielded the other walls as well that it would only boost the RF even more, and that wouldn’t be very good. Then on the other hand, maybe shielding all the walls would exactly be the solution. I don’t know.

One more thing!

Currently, I have a steel sit-stand desk in that room that I got from Ikea and even though it has a particleboard top, placing a TF2 on top of it produced HUGE field values of up to 3.000 mW/m2! The most active hotspots are where the steel touches the board. Could it be that the desk is acting as an antenna? Could it also be why the aluminum on the wall is producing such high readings?

I am looking forward to your thoughts!

July 15, 2019
11:13 am
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Peter Williamson
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Hi Dean, welcome to the forum. It’s difficult to comment in detail on your meter readings, which do sound somewhat strange. However maybe a more relevant question is what is important? The IGNIR guidelines for measurement take into account different zones (see https://files.persona.co/72583……2018b.pdf section A). For instance the high reading in contact with the wall may not be important unless you spend time actually in contact with or very close to the wall, although it would be helpful to find an explanation. It’s the areas where you spend most time which are considered to be important. In that context the high readings around the desk may be of more concern. The antenna suggestion is one I have encountered before, though I don’t have the technical expertise to comment further.
I hope someone can address some of these questions for you.

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