My Part #15-like equivalent knowledge for Canada is limited, but I believe that Carrier-Current Operations are permissible there, a.k.a coupling to the power lines. From 160kHz - 190kHz, the quickest way to get-on-air fairly cheaply are those so-called wireless intercoms that use the house wiring. I had a pair of Novis FM Intercoms that went way further than the inside wiring. That rated 10mW output went down the street for hundreds of meters. You can also do AM Carrier-Current on the AM broadcast band and Neutral Couple to the AC Power Neutral. I do that. As far as a certified transmitter for that in Canada? You may have to roll your own transmitter there. However, 1W, or less, coupled to the lines may cover a whole neighborhood, and even beyond. Hope that helps.