Several years ago I bought the Casio GW5000-1JF.
I am located in central Mexico, approximately 175 miles northwest of Mexico City.
For most of the years that I have owned this watch it synched 99% of the time by leaving it on a window sill.
Starting in June of 2013 that all changed, and reception of WWVB all but ceased. Now I am lucky if the watch synchronizes once a month.
Has anyone else noticed any change in reception anywhere in North America in the past 5 months?
Does anyone have any advice on this problem?