I know the city police here in Pikeville use Constant on K-band. So today I was in a straight stretch (rare here because of the mountains) I get no ramp up on K-band. It was like he instant on'd me and I know they have constant on for sure. I didnt see the cop (it was over a small hump in the highway i guess) then i look forward abotu 1/10th of a mile and I see him then K-band went full alert. I had it mounted really low today to try it out, could that be it?