SWANFIS - I just read your earlier posting where you said
a call from an a/c on one frequency is almost instantaneously transmitted on the other two
which makes sense now.
So two aircraft which are low altitude in their own frequency area may not hear each other, while they would both hear transmissions in other frequency areas, probably further apart.
But I guess, technically, if your so far away from the other aircraft that you can't get LOS for VHF with him, then you probably don't care about what he has to say anyhow. And you may be near the frequency border and traffic information from across that border may be very relevent. But can't help but think it must be a little annoying having to listen to traffic at the other end of the country!?!
Anyway, I'm going to have a listen this afternoon. I wont be able to call as there are to many other stations I need to work on this afternoons flight, but just have a listen and see what crazy locations I can pick up!