UPDATE: I prepped a 'cage' as described below in a .50 cal can. Very snug fit of cardboard, and it fits 4 hand held radios, three 6 inch antennas, one 15 inch antenna, 4 fully charged lithium batteries, 1 charger, and 1 field capable throat mic & ear piece set up. All wrapped and insulated. Very compact kit. So, if we get an EMP event or get cyber attacked to the point of taking out the grid and causing localized EMP events, maybe this will have been worth the time, which was, all told, about an hour. We'll see. ................................................................. With all this 'nuke' talk in Mother Russia regarding the nuke threat, and a single nuclear detonation 400 miles over the center of the continental US would pretty much take out the grid (at least that's what the conventional wisdom is), maybe it's the right time to make a couple of ammo can Faraday cages for hand-held comms....like, maybe 4 Baofengs...with batte...