Worked for about five years at a 50,000 watt radio (was WJJD is now WYLL) in Chicago. For a while we operated directly from the transmitter site where were bathed in rf all the time.
Only time it got weird was when a heavy rain flooded the ground around the towers. That changed the tuning of the antenna-ground system and the swr (standing wave ratio) got so high that it locked up every computer in the building. Adjusting the tuning to match current parameters remedied the situation.
In a bad swr situation it takes power that should go to the antenna and reflects it back into the transmitter and the building. None of us had any problems with it, but you could pick up the station on telephone (land lines) and a variety of small appliances.
Of course powerful EMR can have an affect on electronics and even human flesh in the form of microwave, x-ray, gamma ray, etc. The big scare of EMR is a high altitude atomic blast.
So, how do I stop my silver teeth fillings from picking up the local rap station? Or can I tune them to a classic rock channel? :) Thinking I could invent a Faraday jaw protector, but having a problem with talking when the mouth is open and the EMR kills my dangling uvula.