Ha ha, way over my head. I had one modern physics course; a little special relativity but mostly quantum behavior. If you mean a perfect, isotopic antenna; I

Ha ha, way over my head. I had one modern physics course; a little special relativity but mostly quantum behavior. If you mean a perfect, isotopic antenna; I don’t believe it exists. Though I suppose it could, if you consider an antenna pattern to be a wave function. A spherical mass should be emitting black-body radiation with an isotropic pattern. Maybe only noise can be isotropic. If you try to encode information, it can’t.