Been looking for WNAX AM 570 Yankton SD for a while. The 570 spot on the dial is usually dominated here by WKBN
in Youngstown OH. However, early this morning from 1000 - 1030Z, WNAX managed to override the Ohio station at times.
WNAX runs 5kw day and night but the nighttime pattern is to the north somewhat away from me so was lucky to hear them.