Berliner Rundfunk was a radio station network in East Germany. It was established soon after World War II by the Soviet Military Administration in Germany. The station’s focus was political and primarily centered around events in East Berlin. It ceased transmissions in February 1990 when the two parts of Germany united. Soon after, a private radio station co-opted the network’s name and started broadcasting on 91.4 MHz in Berlin.
I was able to receive all of their medium wave outlets at our home in Southern Germany. They sent these full data QSL cards in response to my reception reports. (Scroll down to view all of the QSL cards I received from them.)