Hi, I heard before that wired keyboards emits radiation when a key is clicked. My goal is to build a keylogger based on this phenomenon (for fun, of course). I've already seen some variations of this idea, but they were all using wireless keyboard, where it is much more simple to detect and process the RF radiation. I want to learn more about this, but can't find anything on the internet (the spectrum of the emitted radiation for example). I'll be glad if someone could help me find more information that can be relevant, or share from his own knowledge. Thanks!