Complex sentence: In 1982, the station signed back on the air with an upgrade in it's signal targeting the Tulsa market and a format flip to Top 40 as KAYI ("KAY-107").
Split into simpler sentences: In 1982, the station signed back on the air with an upgrade in its signal now allowing it to target Tulsa. It changed its format to Top 40 and became known as KAYI ("KAY-107").