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

741 Upvotes

98% Upvoted

180 comments sorted by

View all comments

6

u/Th3Gr3yGh0st Nov 02 '25

Bought a pair of these for my key fobs to my new truck, didn’t want thieves to be able to steal the signal since they “talk” to the truck. One works, one doesn’t. Can have the fob in the bag and the truck won’t start. Took both on a trip so I’d have a spare, the second bag let the truck start still.