ckdk began broadcasting on am 1340 in 1947 as ckox. in 1947, c.o. tatham and charles perry applied for an fm licence at woostock as ckox-fm. they later withdrew their application. the station reapplied a year later to operate at 106.9 mhz, but it is unknown if the station was ever built. the call letters changed to ckdk in 1977, and moved to fm 102.3 in 1986. it moved to the current 103.9 fm frequency in 1993, known at the time as "k104" with an adult contemporary format. the station joined the energy radio network in 1998, simulcast from cing-fm in burlington. on january 12, 2000, ckdk and sister station cfhk 103.1 in st. thomas, swapped formats, but not call letters. the hawk format on cfhk was originally an "alternative format", like fm96, but this was changed to a classic rock format on december 21, 1997.