Last night I had a constant on encounter with the PSP on the turnpike. He was parked on the shoulder hidden by a bridge (real creative ) and had the Falcon mounted by the left rear window. I only managed to get maybe 700 feet of warning. A few weeks ago I got about half a mile warning on the same trap, probably even the same cop.
I think it's because there was an eighteen wheeler in the right lane about 100 feet ahead of me while I was in the left (@()#**#% left lane hogs), and the concrete bridge may have been obstructed all but the very left portion of the radar 'cone' being emitted. That sounds reasonable, but I was just surprised to get such poor range against constant on. If he uses IO from the same position I could be screwed.