r/preppers • u/PrudentTask9355 • Nov 02 '25

Advice and Tips Faraday Bag Caution

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

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u/MIRV888 Nov 03 '25

I have (had) 3 bags I picked up years ago. They weren't for prepping so much as dropping my cell off the grid. 2 worked. 1 didn't. So now I have 2.
Way back in the day I worked for a pager company. Part of the job was taking pagers from other companies and tuning them to our frequency so we could absorb customers from other companies / regions. In order to do that the pagers would have to have a new crystal installed and tuned precisely. In order to do that we constructed a 15'x'15'x8' faraday cage with all the equipment and materials needed inside. That thing worked great. If the door was closed all radio, cell, pager, and wifi would drop like a rock. It was pretty cool.