[Dimnos]

So I finally picked this up last week. I havent done much of the main story line as you guys said its short. So if farther into the main story it gives a reason / explanation Im sorry. In wandering around the wastes I have found a couple of radio towers that when activated give off what sounds to be morris code. I thought if I just hung around for a while something might happen or someone might show up but nothing. Does anyone know what these are for or if they even do anything?