Complex sentence: In May of 1941, the FCC moved WWVA to 1170 KC, and in August of that same year granted the ultimate power for AM stations, 50,000 watts-becoming the strongest AM station in the entire state of West Virginia.
Split into simpler sentences: In May of 1941, the FCC moved WWVA to 1170 KC, and in August of that same year, granted the ultimate power for AM stations: 50,000 watts. In doing so, WWVA became the strongest AM station in the entire state of West Virginia.