Originally Posted by
Locked door
Unless there’s traffic already at the altitude you guessed, then it’s a TCAS or mid air as pilots in the USA are very fond of switching to TA only in the terminal area.
There's always going to be traffic at the altitude you set, near a busy airport. As someone mentioned, the only airport where I've ever gone to
TA only is Denver, and that note has since been removed from our company pages.
In short, set any altitude you want. There are no wrong answers. I'm yet to come across the situation where it's something other than a whole multiple of 1000, at at least 2000 AGL.
You can set 10,000 for the missed going into ORD, they'll still give you 4000
