On 05/20/2016 01:17 AM, grarpamp wrote:
On 5/19/16, Rayzer <rayzer@riseup.net> wrote:
You'd think mylar or even what passes for tin foil now days would work. Everything's low power and I can't imagine, especially at the frequencies involved, it woild take very much shielding.
A single layer single fold bag of grocery store aluminum foil inhibits cell and rfid just fine, to the point that an activist could easily carry enough foil as a condom sized prep pack. Though it doesn't hold up to haphazard random access well.
The plastic film from reflective (but not translucent) antistatic bags works well. You can use aluminum tape for sealing seams. But my favorite is nickel/silver-plated nylon fabric. It's durable, and drapes well. You can make clothing from it. Or curtains.