Two Letters Re: Questions on Faraday Cages and Radiological Survey Meter EMP Resistance
Mr. Rawles, I am an RF and EMC engineer. I’ve worked nuclear EMP issues for a couple of decades. You were fairly right on – a Faraday cage (or “shield room”) is hard to build. It can be done with fine mesh – similar to window screen but made from copper wire – but the penetrations and doors are always the problem. Mesh will not protect you from large magnetic fields, but for much of the affected area, they are not the problem. Your plan to use a steel ammo can has merit – as long as you close the …