Garrett Wollman writes: >There's a station in Michigan that's 690 day, 680 night. Garrett, If I'm not mistaken, the Michigan station you mention is the only one nowdays that operates on two frequencies that way. There used to be a handful of others that operated this way in the late 40s and 50s. I imagine it does complicate matters for the listening audience. 73, de Hakim (N1ZFF)