[2] WYNZ has an effective radiated power (ERP) of 25,000 watts, but from a tower at only 93 meters (305 ft) in height above average terrain (HAAT), limiting its coverage area.

In 1977, it was sold to the owners of WLOB (1310 AM), whose management changed the FM station to album-oriented rock (AOR) as WLOB-FM.

Eastman changed WLOB-FM's call sign to WYNZ-FM in December 1980, while AM 970 became WYNZ, simulcasting the FM station.

Rapp, John Clark, Karen (Tucker) Payson, Bennie Green, Scott Schuster, Will Jackson and Jeff Spicer.

At that point, Z101 veteran John Clark defected to WBLM and the new on-air line-up included morning man Bob Rose as well as Dean Rogers, Andy Kosinski and later Ted Talbot.

Bob Rose exited the station in the early 1990s and Dean Rogers returned to the FM side of the WYNZ operation to handle mornings.

While WYNZ plays some pop and dance hits from artists such as Michael Jackson and Madonna, Frank FM leans more toward classic rock.

With the change, the station expanded the classic hits playlist to include more recent songs, the library now ranging from the 1980s to the early 2010s.