Lotta miles using radar detectors -- they detect 3 different bands of radar and some "detect laser." Radar detectors are great insurance, and more useful on the open highway than they are in town, but I've not seen a vehicle give off Ka band emissions that wasn't law enforcement. I have noticed that newer Honda cars set off the K band, which is also used by a lot of the cheap lightpole "your speed" I've seen. Very rarely still I will see X band speed radar being used in the middle of nowhere where the cop cars are older.
Radar detector users just learn to ignore the X and K band alerts while simultanously learning a subconscious quarter second brake reaction time based on the Ka band noise.
Last time I had a detector (a remote Bel Pro RX75 Plus with laser jammer that works), I turned off X band because of incessant false positives. With just K and Ka (and laser), almost all detection were legit.
Radar detectors on the windshield look dumb, clutter the windshield, and encourage ticket-writing by offending some cops with fragile egos. Remote detectors or go home.
Radar detector users just learn to ignore the X and K band alerts while simultanously learning a subconscious quarter second brake reaction time based on the Ka band noise.