Good idea. Thanks. Yes, the signal on 4990 matches the webstream from R. Apintie, except that the webstream is considerably delayed. So it's definitely Apintie. (At the moment -- 0139 hours -- they seem to have lost the audio feed to the SW transmitter again! Carrier remains on the air.)
http://www.hard-core-dx.com/article.php?story=2019032105352289