” - - and tune to your CONELRAD station.”
You just gave away your age category. If you don’t have a radio you should go to the nearest non-glass shelter, sit behind some solid object, remove all sharp objects from the area, place your head between your knees, and kiss you ass goodbye.
- - and tune to your CONELRAD station.
“Doesn’t Somebody Want to be Wanted?”
https://www.youtube.com/watch?v=Yu4r79l8P8I
It will however do nasty things to transport, supply chains, and panic / emergency supplies; particularly if more than one is used.
And if they loft an EMP (I think I've read, either they, or Iran, has lofted satellites to the sweet spot in altitude for that), all bets are off.