Shielding of Electrosmog: Some Observations (part 4)
Today I reveal the results of my refined Faraday cage experiments using conductive cloth as a screen. Be prepared for a few surprises...
OK, so Faraday cages work for RF EMR, especially if they come in the form of a biscuit tin. Hence I’m going to run my shielding experiments all over again but making sure I allow sufficient settling time for changeover when I’m fiddling with wires/sheets etc (typically 20 seconds); and making sure observation periods are around 10 minutes. This should keep the numbers nice and clean; and cleanliness will be important for I want to assess the effectiveness of conductive cloth in shielding folk and things from radio frequency electromagnetic radiation. Some folk are concerned about RFID security risks whilst others ambitiously desire to protect their gonads. We live in interesting times.
The Cloth
As for the cloth itself I purchased a couple of metres from a supplier on eBay back in 2023 very much with experimentation in mind, it being listed as ‘EMF RF RFID Shielding Fabric Conductive Soft Grounding Earthing DIY Tool ‘; and coming all the way from China (of course). I wouldn’t call it ‘cloth’ for it feels more like plastic and is a drab silver-grey colour. Here it is in use during my initial Faraday cage study that produced wonky results:
It conducts really well, having a measured resistance of 0.1 ohm over a length of 1 metre, so it’s pretty much biscuit tin level.
As for the source to be shielded I opted once again for my Motorola G23 Android, this being a 4G phone loaded with apps and goodies that busily chimes away for most of the day. This was placed head-to-head on axis with the EMF-390 at a distance of 10 cm. I kept the observation scheme fairly simple, there being 7 phases in total:
Phase 1: G23 on aeroplane mode
Phase 2: G23 in transmission mode (no cloth)
Phase 3: G23 placed in single layer cloth sandwich
Phase 4: G23 placed on a double layer of cloth
Phase 5: G23 in transmission mode (no cloth)
Phase 6: G23 placed under a double layer of cloth
Phase 7: G23 in transmission mode (no cloth)
Here’s what phase 3 (in the cloth) looked like…
Here’s phase 4 (on the cloth)…
And here’s phase 6 (under the cloth)…
The study started promptly at 15:32:00 on Wednesday 21st May and finished at 16:53:59, this giving us 4,920 per second data records to cook with.
Right then, let’s get those kettles on and get those packets of biscuits open and go take a look at the results…