HighFlyingA380
Cleared for Takeoff
At larger airports, how are the frequencies to use actually chosen when there are multiples published? When I went into through KORD and KSTL the last few days, they used frequencies that are either not published on ForeFlight or are attributed to a different purpose.
Example: Each time going in/out of KSTL, they used 126.55, which is only attributed as "approach" in FF. Similarly, leaving KORD I was assigned 133.625 on departure (attributed to approach in FF). For another departure, I was assigned one that isn't listed on FF.
Perhaps I'm over-thinking this from a pilot's perspective, but I'm curious...
Example: Each time going in/out of KSTL, they used 126.55, which is only attributed as "approach" in FF. Similarly, leaving KORD I was assigned 133.625 on departure (attributed to approach in FF). For another departure, I was assigned one that isn't listed on FF.
Perhaps I'm over-thinking this from a pilot's perspective, but I'm curious...