The station was launched on December 25, 1974, originally broadcasting at 1190 AM before moving to 720 which was approved in 1987  to eliminate the nighttime interference from WOWO, 1190-AM out of Fort Wayne, Indiana, U.S.A.
In the early 1990s, Newcap entered into a shared-facilities partnership with Maritime Broadcasting System Ltd, the owner of the competing CFCY-AM and CHLQ-FM. Part of the agreement with MBS saw CHTN move to exclusively offer a popular oldies format. CHTN consolidated its broadcasting facilities with MBS for several years on Kent St., and later on the Charlottetown waterfront, until 2005 when the federal regulator, the Canadian Radio-television and Telecommunications Commission (CRTC), ordered the broadcasters to operate separately. This precipitated a move by Newcap to surrender its AM licence and apply for its current FM frequency of 100.3, as well as open a new sister station, CKQK-FM.
CHTN officially moved to its current frequency and format on July 5, 2006 at 8:05 a.m. It was simulcast on its AM frequency for three months before the AM transmitter was shut down. The first song played was Start Me Up by the Rolling Stones.