I have a v1, vers 1.8 sw 3.812. I can drive right up to the fire lane by my local grocery store and get about 2 beeps per second. I got a KA band hit albeit very weak from a cop 2 blocks away in the city and about half mile of detection on an open stretch, 2 instances of this. never had an very long detections. think my v1 is out of whack?