Complex sentence: In the 1970s the 96.3 signal was a very successful Top 40 as WMYQ, and later as 96X but would lose its' license and sign off by early 1981.
Split into simpler sentences: In the 1970s, the 96.3 signal was a very successful Top 40 station as WMYQ, and later as 96X. However, the station would lose it's license and sign off by early 1981.