The LEOs near me use X band so naturally I have it turned on. Today I got what sounded like a full alert out of nowhere on the highway. It lasted a couple seconds then stopped. I was so confused as I scanned the road in every which direction trying to figure out what was going on. Nobody was slamming their brakes and there was no LEO anywhere in sight. The only conclusion that I can draw is that a LEO got me from the other side of the highway and passed me by before I could notice him, or it was a false alarm (and I don't get any consistent falses on this part of the highway). This leads me to ask you guys if you have ever gotten a false alarm on X band at full alert, especially with an X50 being that that is the RD that I use. Also, if it could have been a false alarm, what would be so strong as to give me a full alert?