Weird. Could have just been a bad egg from the carton. It happens sometimes, I also look in
https://www.rdforum.org/ here and there and see that happening.
I get completely opposite results of what you experienced. It will be a little noisy around certain newer cars but I have become accustomed to ignoring it when it's clear that's what is going on. It really is an unfair advantage I have with that thing now. I use a Uniden R3, a little spendy but, so worth it. Ran a Passport 8500 X50 before this but this is just is a totally unreal tool to reach very far out there. Miles away before I even see them now. Even in heavy congested areas it's still getting them past a mile out.
I don't advocate ignorant speeding but when we are driving with the "speeding" flow of traffic or in my case below the PSL because I was watching him tail me to see what he was doing, it really makes driving much more enjoyable since I'm not looking over my shoulder waiting for some silly 5mph over ticket since the car looks fast.
Last ticket was like 15ish years ago before I had one. It was a speedtrap in Virginia going from 65>55>45 so quick letting off the gas wouldn't have stopped them from giving out tickets. Virginia...the craphole only state in the U.S. where radar detectors are illegal. Gee, I wonder why.... Haven't come close to getting one since. Other than that last doofus that pulled me over last year lying about my speed that is. Schooled him on the laws about concealed carry and made him look stupid so he took off embarrassed without even a warning as it was a bogus stop to begin with. I mean I love cops for putting their lives on the line but man a few bad ones out there really screw up the reputation for the rest something terrible.
Just looked and the R3 is now down to $300 since the R7 now recently came out. Three bills is just one speeding tickets worth of electronics that will make driving much more relaxing.
Anybody thinking about getting one should have that R3 at the top of the list. Not for fast and furious driving but peace of mind.