Male voice was clearly speaking Russian. Nothing on any Shortwave schedules had this frequency in use at the time, and no Russian broadcasts on nearby frequencies. My SDR picked it up strong starting at on 7515, but signal meter showed the peak to be at 7520. Signal cut off completely at 4:00 UTC - voice inflection and closing style music indicated it was the end of the show.
Anybody know what this was. The signal was so strong, that either propagation is incredible tonight, or it had a U.S. broadcast origin.