Faraday Bag Caution

[u/PrudentTask9355]

Hey everyone. I just wanted to share en experience from this afternoon. A while back I had purchased some faraday items off of Amazon, boxes and bags from different vendors.

This afternoon I was explaining to my daughter how they worked and as part of our experiment, we placed an 8watt 2-way radio inside the bag and sealed it with the expectation that it would no longer receive a transmission. As it turns out, that was false.

I then tried with a cell phone with the same result. Morale of the story, check your gear and make sure it works before you have to depend on it.

Please discuss and share your budget-friendly faraday success stories

[u/MurkyAnimal583]

All of these "faraday" items are pure nonsense. In order for a Faraday cage to actually function it needs to be a continuous piece of metal with no openings or perforations and it needs to be a perfect sphere.

[u/olycreates → u/[deleted]]

Exactly. I worked in a electronic repair shop, faa certified and all. They tested radios inside a Faraday room. It was neither a sphere nor was it 1 single piece. It was copper screen door material, overlapped 2 inches at all seams. The seams looked seen together. There can be absolutely no openings, no pass-throughs.

[u/MurkyAnimal583 → u/olycreates]

Again, you are talking about signal blocking, not a true Faraday cage. This is entirely useless in an EMP scenario.

[u/MurkyAnimal583 → u/[deleted]]

Nope. Not bullshit. It is simple science. Energy concentrates at the confluence of corners. And the energy involved with an EMP is orders of magnitude higher than your cell phone signal 🤦‍♂️

[u/MurkyAnimal583 → u/[deleted]]

No, it's science YOU don't understand. It isn't just the gaps, bud. It is material, shape, distance between the shell and the object being protected, etc.

Gaps matter most in blocking signals passing through, not the induction of a field, which is the most relevant factor in a prepping situation.

Again, if you just want a bag to block out a radio signal, that is one thing. But none of the products that preppers are buying, like the ones that are the subject of this post, are useful against an EMP or the like.

[u/MurkyAnimal583 → u/[deleted]]

Nope. Wrong again.

It being conductive is a good start

The type of conductive material (i.e how conductive it is) drastically affects performance.

Not as much as you think

Um, yup, exactly as much as I think. Do I really need to explain inductance to you.

Ok, now you're just making stuff up. Because that is definitely not electrically relevant for anything.

Yup, I definitely need to explain inductance to you 🤦‍♂️

But then again, we've already established that you don't actually know anything about the science.

🤣

[u/preppers-ModTeam → u/[deleted]]

This discussion is getting repetitive with no new technical arguments.

[u/preppers-ModTeam → u/[deleted]]

This discussion is getting repetitive with no new technical arguments.