Originally noted as an unidentified station for three days in a row, shifting frequencies from day to day, but with a little help from fpeconsultant, concluded that this is the Oromo-language, Ethiopia-targeting broadcast being transmitted from Spaceline in Kostinbrod, Bulgaria. (Link to that thread follows.) Initially tuned into English-language discussion between two OM regarding the use of solitary confinement in California prisons, but was interrupted after a few minutes by music, presumed station ID, and Oromo language talk for the remainder of the hour, signing off at about 1657.
https://www.hfunderground.com/board/index.php/topic,40446.0.html