[1][3][4] The station originally broadcast at 1560 kHz, running 250 watts during daytime hours only.
[1] The station originally aired a MOR-adult contemporary format, with the slogan "Welcome to Our Sunshine".
[3][7] In 1993, after being silent, the station adopted a modern rock format, while temporarily being run by Northern Illinois University students.
[13] In August 1999, the station's format was changed to adult standards, carrying Timeless Favorites programming from ABC.
WSQR returned to the adult standards format in late summer of 2011, airing Dial Global's America's Best Music,[19] but in November 2012 switched back to classic hits, now airing Dial Global's Kool Gold format.