Hello. Thanks for your comments. I have checked this frequency next day and heard nothing but the strong Stanag-4285 signal. However the station was there again about two days after the first reception (under Stanag-4285). And I hear only UTE QRM at the moment. Looks like these broadcasts are quite irregular (hard to say definitely due to strong constant UTE QRM which was absent on January 16th by some reason), but this frequency is not one-time one indeed.
73!