|Quoting WROORD (Thread starter):|
I frequently listen to ch9 on UAL flights and never came across any private jets being addressed by traffic control. Are they using different frequency or not using the same paths?
How do you know they aren't there? They (almost always) simply use their manufacturer and registration number for a callsign, which is normally truncated after the first contact. They are on frequency with us all the time.
They often avoid bigger commercial airports in favor of smaller fields that are better set up to cater to their needs, so you won't hear as many on ground/tower/approach/departure frequencies at a place like ATL
as on center frequencies, but they are out there.