YX 410 is a great log. You need to look that one up in the RNA!
Yeah, I noticed YX was listed as an icebreaker. So I guess it is a mobile NDB?
I see you figgered out PYA 260. It's keying currently looks more like PTWA.
There were a few others I did not log because I wasn't completely sure I was correctly interpreting the wonky keying.
It's very interesting how at times two or more NDBs mix on the same frequency, and it's tough to pull out the IDs when they happen to be on exactly the same sideband frequency, I either have to wait for propagation to change, or if the periods are different enough, for one of them to slide to a period of time when other(s) are not transmitting, and the ID is in the clear. Or give up and move on to another frequency
This is giving me some software ideas though...