I say post a recording or two of what you are hearing and maybe with the help of some other ears on this group help you ID the NDB. It might even be ITF on 209. The IT part of ITF can easily be mistaken for a U.
When I listen to Poland on 225 I get clobbered by two NDB's on 227, one of them being GW which is just 40 miles to my north. The auto notch in SDRC stinks IMO so I am writing my own.
I am almost done with a new notch program I am writing that will let me input either a RAW I/Q recording or a demodulated audio file and have it provide me a nice frequency plot of all the signals around the LWBC station I want to listen to and let me place narrow notches on each and every carrier, NDB CW signal, birdies, etc. Having the ability to notch while in the "RF" domain or the "audio" domain should be neat (and hopefully very effective). 73 Gedas W8BYA