Many thanks to SRAA contributor, Paul Walker, who shares the following recording of BOM and notes:

BPM on 10 MHz surpassing WWVH’s signal, which does not happen often at all—if ever that I can remember—in McGrath, Alaska.

The dits form BPM are obvious, but the morse code beginning at 39 seconds and the voice at 1 min 21 secs just wipe away WWVH.