WYNZ (100.9 FM, `Rewind 100.9`), is an FM radio station licensed to South Portland, Maine, and broadcasting at 100.9 MHz. Until 2007, the station was an oldies formatted radio station known as Oldies 100.9. ==History== 100.9 FM began broadcasting in 1976 as adult contemporary station WRQN. In 1978, it was sold to the owners of 1310-WLOB-AM, at w.....