Two very short videos of 15-20 secs each Please watch them and comment https://m.youtube.com/watch?v=4pIK0k9 https://m.youtube.com/watch?v=nA1fAHl-k3g The above two links are from a 'mysterious' source that makes 'footsteps' carriers every 200 kHz . Did it happen to you?? I m not very sure for the source but i think that comes from the grid poles posibly either from the main electricity towers or from the nerby towers of high level electricity of 150kV. They are around 40 m tall and locate not more han 50 m far from the house.