As with most early broadcasting stations, some of the station's earliest activities are poorly documented. In Listening In, a 1992 history of early Canadian radio, author Mary Vipond noted that "Several different versions of the gradual transformation of XWA from an experimenter in radio telephony to a regular broadcaster (with the call letters CFCF) exist" and "the precise date on which XWA/CFCF began regular programming may be impossible to determine". This uncertainty was evident when, in 1928, the station manager wrote to the Radio Branch in Ottawa asking "would you kindly let us know the date of our first broadcast", to which the reply was "We do not have the exact details of this on our files, but find that test programmes were carried out by your Company in Montreal during the winter evenings of 1919, and regular organized programs were commenced in December, 1920, by your Experimental Station, 'XWA' on a wavelength of 1200 metres [250 kHz]."Vipond, Mary (1992) Listening In: The First Decade of Canadian Broadcasting, 1922-1932, page 17.
