WARNING!!!!! If you stow radios in these cans take the antennas OFF!!!!
At about 7 minutes meant to say that aluminum foil
“GASKETS “ do not work……only press fit.
Super Easy and Fast, bullet proof seal (pun intended)
Will work on any size can as long as you have wide enough
heavy duty aluminum foil.
Even a mortar can…imagine the items you can protect .
The conductive layer can be very thin because of something known as the skin effect. That term describes the tendency of current to flow primarily on the skin of a conductor.
As long as the conducting layer is greater than the skin depth, it will provide excellent shielding because the absorption loss will be large. The skin depth is a function of the frequency of the wave and the conductor material.
As an example, consider that for a frequency of 200 MHz, the skin depth of aluminum is only about 21 microns. EMP pulses can have frequency content that ranges up to 1,000 MHz.
Therefore, wrapping a box in a couple of layers of heavy duty aluminum foil (typically about 24 microns thick) provides the necessary conductor thickness to protect against high-frequency radiated fields. Credit Dr. Arthur Bradley.
Last continuity check a bit bogus…just to give idea..
If someone else has posted the same method, my apologies.
Not going to chase comments as I'm too old to bother with that.