WNBY has operated on different frequencies over the years, starting at 93.5 FM, then 93.7 FM, and finally to its current frequency at 93.9 FM in 2004. At the time of the station's move from 93.7 to 93.9 (along with a transmitter move eastward from Luce County into Chippewa County, north of Eckerman), WNBY-FM's format changed from adult contemporary to a 1960s and 1970s oldies format targeted primarily at Sault Ste. Marie, though the station retains offices in Newberry. The format change returned the Oldies format to the air in the Sault market, which had been without an oldies station since the end of the former "Memories 105.5" WADW (now WMKD).
With its current 50,000-watt signal, WNBY-FM can now be heard throughout the eastern Upper Peninsula and far northern portions of the Lower Peninsula.