Hi,
Nice. I guess the next gateway should be located in Radeberg (still north of Dresden) to have a throughout signal. With another hop in the north of Bühlau (in Dresden) or Weixdorf/Klotsche (also Dresden) the next larger town (Dresden) in Saxony, Germany would be reached.
But this is only a guess.
I'm available on Google+ and Facebook as well but I think if more users join a separate web site / platform should be used to publicly show what we do and what can be done with LoraWAN.