It&#x27;s probably even way worse. I think it was one of the gravity wave experiments and they talked about how they picked up signals from people walking in neighboring building, cars driving on the highway and even the ocean waves hitting the beach while the beach was fifty or a hundred or so kilometers away. Maybe it&#x27;s as simple as a high pass filter but I&#x27;d also like to know more about the details.<p>EDIT: It was probably not this exact article [1] but it matches my memories pretty well. They also mention some of the countermeasures.<p>[1] <a href="http:&#x2F;&#x2F;www.nature.com&#x2F;news&#x2F;physics-wave-of-the-future-1.15561" rel="nofollow">http:&#x2F;&#x2F;www.nature.com&#x2F;news&#x2F;physics-wave-of-the-future-1.1556...</a>