The station was launched in 1944 as CFPA at 1230 kHz, an AMCBC Dominion Network station owned by local businessman Ralph Parker. The station ceased airing CBC programming in 1972, adopting a country music format. In 1980, the station was purchased by Leader Broadcasting and adopted the call sign CJLB. In 1988, the station was acquired by Newcap Broadcasting. In 1986, CJLB received CRTC approval to add a low-powerFM transmitter in Nipigon/Red Rock, Ontario on 96.3 MHz to rebroadcast the programs of CJLB Thunder Bay. CJLB applied to move Nipigon's frequency to 96.1 MHz, and it is uncertain if this was ever implemented. In 1995, Newcap entered a local marketing agreement with Dougall Media, giving Dougall the right to manage the station. On November 2, 1994, CJLB was given approval by the Canadian Radio-television and Telecommunications Commission to convert to FM. In 1996, the station moved to 105.3 MHz. In 2002, CJLB-FM dropped its KIXX 105 country music format and adopted a hot adult contemporary/CHR format as Hot 105. In 2004, Dougall terminated the LMA when Newcap applied to purchase CJUK. Newcap changed CJLB's callsign to its current CKTG calls and adopted its current classic rock format as 105.3 The Giant in early 2005. In mid-2005, CFQK-FM in Kaministiquia, Ontario, located near Thunder Bay which had no affiliation with CKTG dropped their "Larry FM" variety hits format to Hot AC/CHR as HOT FM. On March 16, 2009, CKTG became the first radio station in Canada to carry The Bob & Tom Show, a syndicated radio show from the United States. On July 14, 2009, Newcap announced it would be selling CKTG and sister stationCJUK-FM to Acadia Broadcasting for $4.5 million CAD plus working capital. The sale received CRTC approval on December 2, 2009. In early October 2010, CKTG-FM changed its format again, to adult hits, playing a variety of music "From the '60s, 70's, 80's and beyond", and re-branded as The New Giant FM. In March 2014, CKTG made the change to its format, switching to Country, re-branded as Country 105. When atmospheric conditions are right, CKTG can be heard across Lake Superior in Munising and Marquette, Michigan.
