I live in illinois, USA my question is whats the differance between the Intl and USA mode for Ka? I called Bel and did not get much help. I am using it in Intl mode but i wonder if the range is differant between the two settings. Anybody know for sure? My K band goes off alot with SWS off. When i use my Bel vector 970, in the same spots where the RX65 alerts K, the 970 alerts X. This is by a supermarket. Whats up with that?