It's been about 2 months now that I've been driving with this detector. Recently I've begun to question the performance. I know these aren't cop detectors, but man either the 8500 is broken or cops in RI almost never have their radar guns on (no laser here). I can understand a town cop driving around w/o radar on, and I see that often, but several times, about 10 over the past 2 weeks, there has been a state trooper in the median of the highway facing my side of the traffic. Nothing every time from the 8500. And there was even one day where I passed a record-for-me 11 cops on my 15 mile trip home, nothing at all. I suppose it could be that NONE of these cops had their radar guns on, but thats a large amount.
Today really worried me, and as I crested a hill the 8500 began chirping 35.5 Ka and the cop was maybe 500 feet in front of me with a customer. Of course the hill caused the late reaction, but I was right next to him and the signal strength didn't even make half. The final thing that set me off happened just a few hours ago, when just randomly the 8500 turned off and restarted instantly. I still have 4 months on my warranty, and if a problem is forming, I want to get it fixed before that time.