Captain Rawles,
As most of your readers would say, we thank you for your ministry. My question is weather a 40′ Continental Express (CONEX) shipping containers would work as a huge Faraday cage, and thus we would be able to store most of our sensitive electronics, such as communications gear, battery chargers, e cetera.
Thank you again, – R.L.S.
JWR Replies: There are a few problems with that concept:
1.) The vast majority of CONEXes have wooden floors. Wood is fairly transparent to radio frequency (RF) waves, including electromagnetic pulse (EMP). A metal Faraday enclosure needs to be an integral box. (Polygonal or spherical.) No windows, and no wooden floors!
2.) Creating a good “gasketed” RF seal at the doorway would be difficult. But RF gaskets might do the trick.
3.) CONEXes tend to “sweat.” In a full Faraday enclosure, there would be no ventilation available, so the moisture buildup would likely be excessive. (Depending on your local climate.)