High River was reported heard in Hawaii, about 2,800 miles (4,500 kilometers) away. In Canada there was no formal category for stations making entertainment broadcasts intended for the general public until April 1922, so the earliest stations making broadcasts operated under a mixture of Experimental, Amateur, and, as was the case with VAW, governmental authorizations. In 1922 federal regulators added a new licence classification of "Private Commercial Broadcasting station", and in late April 1922 an initial group of twenty-three station assignments was announced, including two in Calgary: CFAC, licensed to George M. Bell on a wavelength of 430 meters (698 kHz), and CHCQ, licensed to the Calgary Herald newspaper on 400 meters (750 kHz). Grant, from his base in High River, provided some technical assistance to the newspaper when it was setting up CHCQ. Grant left the forestry project and established the W. W. Grant Radio, Ltd. in Calgary, which on May 18 was issued the city's third commercial broadcasting station license, with the randomly assigned call letters CFCN, operating on 440 meters (682 kHz). In 1923 the station's transmitter was upgraded from 100 to 1,000 watts, as part of a reconstruction following "a devastating fire which destroyed the plant of the W. W. Grant Radio Ltd." A few months later CFCN, now using the slogan "The Voice of the Prairie", had a further upgrade to 8,500 watts, a very high power for the time period. In addition to operating the radio station, Grant's company sold a line of "Voice of the Prairie" brand receivers, however the Westinghouse corporation sued him for infringing certain of its patents. On July 3, 1926 the Exchequer Court ruled in Grant's favor, but on appeal the Supreme Court of Canada on October 4, 1927 reversed the decision. To pay his outstanding legal fees, Grant arranged to sell CFCN to H. Gordon Love. The station became a phantom station affiliate of the Canadian National Railway radio network and later of the Canadian Broadcasting Corporation's Dominion Network, until it dissolved in 1962. In 1947, CFCN moved to the station's current AM frequency at 1060 kHz. The call letters were changed to CKMX in the fall of 1994 when Maclean-Hunter sold it to Standard Broadcasting while retaining ownership of sister station CFCN-TV, and switched the format to hot adult contemporary. The format was shifted to alternative rock in mid-1993 under the name Mix 1060 from Top 40/CHR