What's A Faraday Bag?

[sandyRoe]

I read a report of a phone snatching thief who used such a bag so they couldn't be traced.

I'd guess there's a bit more to it than lining a bag with aluminium foil.

[ToraToraTora]

it's like a faraday cage in bag form.

[sandyRoe]

And what's a Faraday cage?

[barry1010]

You're more of less right.  AI gives more detail

Faraday bags, which are used to block phone signals, are typically made of a conductive material, such as metalized fabric or metallized polyethylene, lined with fabric or leather. The bag's metal mesh absorbs electrons sent out by devices, such as keyless keys, phones, and credit cards, and generates an electromagnetic field that cancels out the external field. This protects the devices inside the bag from electromagnetic transmissions and can enhance digital privacy. 

 

Wikipedia

Faraday cage - Wikipedia

Faraday bags are portable containers fabricated with metallic materials that are used to c...

 

SLNT® Faraday Bags

Do Faraday Bags Work? These 4 Tests Reveal the Truth - SLNT®

19 Aug 2022

 

carwow.co.uk

What is a Faraday bag and do you need one? - Carwow

16 Jan 2023 — How does a Faraday bag work? The signals sent by keyless keys are electronic, a...

 

Satmodo

Faraday Bag: Unveiling the Key Reasons Why You Must Have One

31 Jul 2023 — How do Faraday Bags Work? The functioning of Faraday bags is based on the princ...

Faraday bags can be made of a variety of materials, including:

Copper

Aluminum

Static dissipative polyethene

400D weatherproof nylon

Top grain leather

Multishield Faraday shielding material

Oxford cloth

600D poly outer shell

PU face coat

TPU backing 

Cheaper fabrics may not block signals as well as more expensive materials, and can break down over time, allowing signals to leak. 

 

[barry1010]

An earthed metal screen that does the same thing as a faraday bag.

[youngmafbog]

Turning the phone off would sort it just as much.

We use the pouches for the cars, they do work and its pretty easy to test.

[barry1010]

Crikey, how big are the bags?

[douglas9401]

It's his Scalextric collection.

[Vagus]

We have two faraday pouches, for each of the car fobs. They're not very big at all, just enough to put the fobs in. We don't use them for our phones.

[Vagus]

Or our cars 🚙 ha ha 😉

[youngmafbog]

Not yet Douglas, just waiting for the granchildren to be old enough then I can buy one!

Already got the train set and hot wheels :-)