John Dee's Private Passion

John Dee's Private Passion

Shielding of Electrosmog: Some Observations (part 1)

Today I play around with various forms of conventional shielding to see what we can see or, rather, what we can’t see

John Dee's avatar
John Dee
Apr 09, 2025
∙ Paid

I guess it follows logically that today’s article should be concerned with shielding of the three fields we’ve been looking at (electromagnetic flux, electric field and radio frequency EMR). I’ve a mind to explore both conventional and unconventional shielding and we can see where this takes us.

Having a hand held device like the a GQ Electronics EMF-390 trifield multifunction meter is, dare I say it, handy! It’s small enough to throw about the premises and lends itself to being smothered by pretty much anything, so we may see what that anything is doing.

Method

I shall start with a group photo of all the gear I mustered for today’s experiment:

Here we see the EMF-390 supported by a battered notebook, Hi-Tecpoint V7 pen (my pencils have gone missing), a wooden ruler, a Tenma 72-7720 multi-meter, a box of aluminium foil, a length of conductive cloth folded neatly, a steel saucepan with tight-fitting lid, an earthing lead, and two trays of experimental macaroons. Not in the picture are the rest of the house, our Wi-Fi router, and my Motorola G23 (which I was using to take the photo). Normally the Wi-Fi router and G23 are switched off in the Dee household but for the purposes of this experiment I flipped them on to mimic yer normal family home.

A word about the macaroons…

Mrs Dee is endeavouring to make sugar-free macaroons so that my stomach eventually gets to fit in all of my trousers in style. She’s trying out Xylitol at present, which makes these Xylitol macaroons which, to my mind, either sounds like a Coldplay album or a budding Hollywood starlet. These were necessary to stave-off hunger pains that may have affected my ability to keep to the time schedule. According to Mrs Dee a total of 10 experimental macaroons were consumed during the study. It was worth it, and they tasted great!

Method For Saucepan

The first bit of shielding gear under study was one of my favourite steel saucepans with a tight-fitting lid, this being slightly larger than the EMF-390 to avoid the detector coming into contact with the sides. A small plastic pot held the detector up such that it sat in the middle of the pan in the middle of the table. Here’s how this looked:

To begin with the lid was left off and measurements taken, and then the lid was popped on for more measurements. The pan was then earthed and yet more measurements taken. The final stage saw me throwing a large conductive sheet over the whole affair; here’s how that looked:

All in all there were 8 survey phases, and 1,080 per second observations were made between 13:42:00 and 13:59:59 on Tuesday 8th April 2025. Here’s the schema and the sample count in a nutshell:

We start with 3 minutes of normal Dee electrosmog, after which the Wi-Fi router gets fired up for 2 minutes before my Motorola G23 flips out of aeroplane mode to settle over 3 minutes. We’ve then the classic 2 minutes of observation with everything settled in electrosmog terms. After that I plonk the EMF-390 in the saucepan for 2 minutes, then plonk the lid on, then connect an earthing cable, with the final 2 minutes being the conductive sheet overkill stage.

Method For Conductive Sheet

This experiment was less fussy with just 2 minutes of background measurement (Wi-Fi and G23 both on), followed by 2 minutes of the EMF-390 placed inside the conductive sheet, with the final 2 minutes having the sheet connected to earth. Here’s how that looks sample-wise:

Let us now dive straight into the results…

Results – Saucepan

Keep reading with a 7-day free trial

Subscribe to John Dee's Private Passion to keep reading this post and get 7 days of free access to the full post archives.

Already a paid subscriber? Sign in
© 2025 John Dee · Privacy ∙ Terms ∙ Collection notice
Start your SubstackGet the app
Substack is the home for great culture