 92.1 FM was originally WRBJ-FM, and, in a simulcast with WRBJ (now WWSJ)/1580, served St. Johns and Clinton County as a full-service local station.Original owner Robert Ditmer sold WRBJ-AM-FM in 1981 and changed both stations to a country simulcast as WQTK-AM-FM, the first of many identity changes over the next twenty years for the AM 1580 frequency (see the WWSJ article for more).The calls eventually became WKLH-FM, continuing with a country format as "K-92", until Labor Day 1985, when WKLH-FM became WLNZ, "The Lazer", with a rock format (the "lazer" part of the positioning referring to the station's being the first in the Lansing market to play music from compact discs).