Just for my continuing education, what difference do the many and varied amateur interpretations of "CAR 166" have to do with the question as to what frequency must be used by VHF-equipped aircraft in the vicinity of aerodromes that are not marked on charts?
From 166C:
...the pilot is responsible for making a broadcast on the VHF frequency in use....
Note 1: See the AIP for the recommended format for broadcasting the information mentioned in this regulation
Up until the recent change that was either the assigned CTAF or the MULTICOM. - Simple! Now not so simple and even dangerous!
But then there is
always interpretations!
