And I'm waiting for the RFEngineer to explain why a Faraday cage movie theater is perfectly legal.....without a single sign saying...."Hey Dufuss, your cell phone won't work in here"
A faraday cage would certainly be legal, but a theater would probably face civil and possibly criminal liabilities if they did not make it very clear to the patrons that cell phone usage was purposely obstructed.
"And I'm waiting for the RFEngineer to explain why a Faraday cage movie theater is perfectly legal.....without a single sign saying...."Hey Dufuss, your cell phone won't work in here"
Because a Faraday cage is passive and doesn't affect things significantly outside the specific premises of the theater. The FCC doesn't object as long as you don't broadcast anything on spectrum that you don't have a license for, or interfere (actively) with someone who does.