Sir: Thank you for your hard work. I am not sure if this was covered here before and, in the case it has not, I wanted to supply the following information to help suppress fear regarding electromagnetic pulse (EMP) and specifically, its effects on communications equipment. I am tired of reading “seal the radio in a metal ammo can, place the ammo can in an old microwave and place the old microwave in an old refrigerator, which is then buried under 8 feet of earth,” et cetera. Here is the reference for a four-part article in Amateur Radio Relay League …