Today I have found two QSLs in my postbox. First came from free Radio Benelux, Germany, which I heard via Twente SDR. I very much appeciate it, because he is rarely on air. Second came from Radio DARC, the station of German Amateur Radio Club. Their programs relay via TX of ORS Vienna (100 kW) and TX of Intermedicom, Ingolstadt in Germany (10kW), and frequency is 6070 kHz. So I thank you for such nice confirmations!