The station was launched in 1955 by Rideau Broadcasting as CJET, on 1070 AM, and played a country format.[5] Prior to signing on, the station would have been known as CFRL = "Rideau Lakes" it was changed to CJET when the station signed on. It began broadcasting in a daytime-only capacity On October 22, 1955.[6] In 1958, the station's frequency changed to 630 AM.
In the early 1960s Rich Little was hired full-time as a disc jockey and talk show host. His afternoon-evening shift ran from 4 to 8 weekdays, and the show gave him the opportunity to use his impressions on the air.[7]
In 1969, CJET-FM was launched on 101.1 FM as a stereo simulcast of the AM signal.
In 1984, the AM and FM stations were sold to Harvey Glatt's CHEZ-FM Inc., which was subsequently acquired by Rogers Communications, the stations' current owner, in 1999. On March 21, 2000, the Canadian Radio-television and Telecommunications Commission (CRTC) approved Rogers' application to convert CJET from the AM band (630 kHz) to the FM band on 92.3 MHz.
[8] On October 14, 2001, CJET-FM began testing on 92.3 MHz and launched on October 27 as Country 92. CJET's 630 AM transmitter was later shut down.[9] The station adopted an adult hits format as 92.3 Jack FM in 2004.[10][11]
On December 3, 2020, CJET returned to country as Country 92.3, taking on the format and programming of CKBY-FM (both stations would also swap callsigns) after its flip to all-news radio as a simulcast of CIWWCityNewsOttawa.[10][12] The two stations also swapped call letters.[4][13]
On October 26, 2023 at 1:00 p.m., the country format was reverted back to CKBY-FM 101.1 (along with the callsign change) after Rogers decided to discontinue the all-news format in Ottawa. After the two frequencies simulcasted for several days, 92.3 would begin stunting on November 1 with Christmas music for the holiday season as Santa Radio Canada, sharing its branding with an internet radio stream promoted by Rogers under the same name.[14][3] On December 27, 2023, the station returned to the Jack FM format as Jack 92.3 (emphasizing the return by promoting itself as "Smith Falls' new-ish radio station").[15][16]