[The Stig]

Originally Posted by Ivas

Theatre owners need to install a simple, cheap kinda' Faraday Cage. This is not a joke. For those not in the know, a Faraday Cage is a netting of metal, in the walls usually, re-bar in concrete serves well, even when not by design, when it has smaller openings than the wave length of the carrier wave; in this case, it is radio bandwidth, about chicken wire size. No telephones will operate inside that area. This is common practice in theatre design overseas. In one of the new buildings in the high school where I teach, no signals will penetrate in either direction. Great! No texting during class!

Yep, I've made a few of those. Pretty neat actually. Chicken wire from home depot is all you need.