They seem to go to night pattern way earlier then the official FCC Time.
They are 50KW full time, but different patterns day and night.
Pattern change time is 930pm mountain/830pm pacific, but they switched
patterns at 821pm . How do I know? Listening in Laramie, WY clear as day,
850 miles away and they COMPLETELY disappeared in the middle of their
traffic news sounder.

Last winter, id caught them changing patterns five minutes every day
regardless of the month

This info might be useful to someone
_
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