Today February 14, it's on 11575. I was tuned in a little earlier (at 1605) and it was in English for a while, two OM talking about the use of solitary confinement in California prisons, when it switched to music. YL seemed to give a station ID but I couldn't catch it, and unfortunately was not recording. So I will plan to set my recorder for tomorrow and see if it broadcasts then. (I have it recording now, perhaps there will be another ID.)
EDIT: There IS a scheduled transmission for M=F 1600-1700, Radio OMN in the Oromo language, Tx from Spaceline in Bulgaria. This might have been it all along. I'm certain that there was nothing on 11575 on the 12th or 13th February.