Right folks. I'm now living in Louisville Kentucky.
Down here is a major hub for the parcel carrier UPS who use Sandiford Field (SDF) as their airport.
I thought Manchester (MAN/EGCC) was a busy airport but listening to SDF is crazy.
There are two approach frequencies for flights above FL60, two for approach below 6000ft and two tower frequencies.
The midnight hours and early morning are incredibly busy too. I have my BCT15 set to have no channel delay and it's non stop action.
You'd never get bored listening to this airport!