I was expecting something about EM pulse weapons or a hack involving EM, but unless I’m greatly mistaken this appears to be someone’s persecutorial delusion about voices being “beamed” into their head. I spent some time working with people with schizophrenia and this is very familiar territory. I’m sorry for what the author is going through, and would strongly suggest seeking help, although I understand that’s a scary prospect and I’m likely to be incorporated into their delusional framework. Even if the author is disinterested in medication, talk therapy can be helpful.