Ok, slight thread drift; still on the subject of CTAF, I've read what I can find, but I'm confused.. paraphrasing:
CTAFs no longer have defined airspace limits
Aircraft should broadcast by (min) 10nm inbound or overflying and listen out on the ctaf frequency.
So, how high do they go? 3000? 50000? To the base of class E? Higher?
How do you handle en-route - and what constitutes overflying?
For instance if I head southeast from YMMB I head towards/ past Tyabb and Tooradin, both on different CTAF frequencies about 10nm apart. Apart from the practicalities of not overflying Tooradin due parachuting, what *should* I be doing?