A question to tech-savvy musicians ... You know these kinds of lawn robots that do the mowing for you? Well, my neighbour got one last year. Pretty great that I don't have to suffer through his endless mowing sessions, right? Sadly a whole new world of frustration arose when I found out that such a device uses a magnetic field to know where the boundaries of the lawn are ... and that magnetic field is picked up by guitar (and bass) pickups, resulting in a nasty interference that sounds something like this through a high gain amp: https://www.dropbox.com/s/b5u4ro189kdqs8a/sukablyat.mp3?dl=0 My home recording activities are basically made impossible from spring to fall by this interference. I have tried different cables, power conditioners, moving my setup to different rooms, and so forth. All in vain. The only thing that works is asking my neighbour to shut down the mower, which is not a workable situation. Does anybody here have a good idea how to deal with this? I'm aware that building a Faraday cage should theoretically work, but I'm not in the position to do any modifications to the house. The manufacturer of the device doesn't reply to my questions (but did subscribe me to their newsletter- thanks!). It is possible to disrupt or knock out such a magnetic field?