The presumed Chinese station was in again this morning at 1434 UTC (0734-0745L) on 900 kHz. Signal was weak and copyable but steady. Talk and Chinese music. Origin still unknown. Mexican stations are generally weak to non-existant at this time of morning as they have faded out almost completely. A single station on 900 kHz exists in Victoria, BC, but I don't think that is the origin of this signal. The mystery continues.