S7 with the OE6ADD KiwiSDR in Austria.
1618 UTC-Serbian Folk Music
I often hear this station on this frequency, but it only plays folk music with no identifications. Today, I happened to look at the “users” menu on the KiwiSDR I was using, and someone listed as “ČIČAK RADIO” (Serbia) was listening on 1777.42 kHz! I know operators of mediumwave pirate stations often use SDR’s to check their own signal. I assume that’s what this is, although I could be wrong.