Jack FM 98.7 WXJX is Greensburg PA’s home for the best variety of adult hits. Jack FM also features Penn state Basketball and the Pittsburgh Penguins! Jack FM features a gigantic music library covering more than 4 decades and 1,000 titles. Jack plays a bunch of songs in a row. All Day. Every Day. Plus, our Jack Pack brings you contests and promotions that include great prizes from concert tickets to local amusement park tickets and everything in between.