I have a question. I have my RX65 set on international Ka now,it seems to hold the warning longer than when it's in USA mode. Has anyone else ever noticed there RX65 warning longer with international mode on? compaired to USA mode? What i mean is. Say you drive by a leo with radar. The detector will beep longer than it does in the USA mode. I think the K band does to. Just wanted to know if anyone has tried this? Thanks.