Thanks for posting this. The hawks have been on 3 or 4 different stations since I've lived in Omaha. Most recently (season before last) they were on a channel that was a Spanish speaking music station for all of its other programming. 1420 (NICE!) Last year they weren't on ANY station in Omaha.
The nice thing about 590, other than it's a fox sports station , is that it has great range. My Mom used to listen to it in North Central Iowa when it was an oldies music station.