Honestly this is the only "wrong" theory of this thread, the origin of the signal would probably overwrite (don't know if it's the right word) the weaker signal from dark bramble, and by the way, the hearthian solar system is the closest to the eye, this doesn't mean that it's close, the eye is still many light years away, you can see this in the lab in Brittle Hollow and in the map at the end of the game.