I call BS. If this is true, then just put in a single unit to protect the entire US, or maybe one unit on each coast ... wrong.
You would need to distribute these units along each circuit, across the nation. The EMP pulse is very narrow, and very fast - it's an impulse that any 'antennae' will pick up, whether that antenna is your radio, a chunk of co-axial wire bringing cable TV and the internet into your home, a trace on a PC board, speaker wire, or your home's wiring system itself. You cannot feasibly protect yourself from this, that's why it's so effective. Bear in mind, this pulse also travels at near light speed, so you won't get a little light coming on that tells you to unplug your TV - it will have done it's thing and dissipated long before you eye's would register the light coming on.
I would rather invest my money in a missle shield; so we can stop the EMP pulse before it gets over American air space.
That ASSUMES
that the PTB
would USE said defefnsive shield
when their GOAL is to destroy the USA to make setting up the overt global government all the easier and faster.
. . . a flawed assumption, to me.
You could buy a filter for your incoming power, that would catch the surge from the line from the transformer to your house. POTS telco too. The filters are COTS items. (big distribution transformers are in the process of retrofit against solar flare-induced saturation, many also have considerable attenuation against HEMP).
My internet and TV is fiber, no point in filtering that.
We as citizens could do what the government/military does to harden against HEMP or SREMP. Personally I think an attack by hoards of people armed with sticks and stones to be more likely.