WHDF (CW-Huntsville) is the station I'm talking about. If I lose the station, it's no big deal because it's only a small fraction of my TV viewing anyway. I live in Southern TN and can receive the main stations in Huntsville AL via a set of rabbit ears (if I chose to), but I have the 4228 to point towards Nashville to pick up a few distant stations from there. With it pointed towards Nashville, I can still pick up 90% signal on Huntsville on the backside.
I've read about the numerous things that can affect reception on RF 2. I read an account once of an individual that couldn't receive a channel on that frequency due to a dirty power line filter outside their home.