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.