I performed a biennial check of H/T’s and marine VHF base units stored in the family bunker the other day and am enclosing a couple of photos of how they are EMP shielded (double ammo boxed, insulated inside the first box and outside with cardboard and metallic taped. I metallic tape all seams and weld points on the ammo boxes. Big electronics are stored in original packaging inside ammo boxes and smaller H/Ts are first packaged in foam bags wrapped in aluminum foil that in turn is wrapped in cardboard). I also have solar charge controllers, a FLUKE DVM, LED flashlights, NVGs, range finding Leica binoculars, NICAD and DEWALT battery chargers, several battery/solar powered scientific calculators, a 100W multi band amateur radio, and 150W Marine HF transceiver thusly protected. I back fill all containers with N2 gas before sealing. As the humidity is quite low in this region, I don’t use silica gel.
Some similarly protected electronics sealed in multiple 20mm ammo boxes are also metallic taped, insulated, and stored inside US Military aluminum medical chests for additional shielding. The large medical chests are placed on wood planks in CONEX containers for more protection and I plan to build a metal frame/aluminum skinned building around two of the containers, thus adding another layer of shielding. A John Deere diesel (no computer) M-Gator and spares will be stored in one of the CONEX containers and the other will be filled with force multiplying electronics including unused solar panels and GRUNDFOS water pumps. I’m thinking of throwing in several Apple laptop computers and a printer or two with supplies as well. Elsewhere I have a half dozen best office quality manual typewriters, spare ribbons, and reams of paper. I suppose I should throw in a couple of coils and ignition wiring for my 1974 Jeep we call TEOTEAWKI. Several one ton ranch trucks are older 4wd diesels. I cut down a JD wheat drill and disc into 5′ long units so they could be pulled behind a horse, the Jeep, or the M Gator. Will send you photos of these if you are interested. Not much way one could harness a team to pull a 20′ disc or drill.
If you think of anything I’m missing either in EMP protection or stores, please let me know.
– Panhandle Rancher