Karl wrote
sailplane wrote
They never turn them off. I've checked with a radar detector many years ago until detector detectors became more common.
I read recently that a lot of radar detectors are immune to detector-detectors:
https://en.wikipedia.org/wiki/Radar_detector_detector
It's not "a lot" by any means.
https://www.youtube.com/watch?v=9Eizk4gLzOchttps://www.youtube.com/watch?v=f2q255QrHrUA lot of budget ones can still be detected if the detector is very close, even though they advertise that they're stealth. They are expensive though.. would be cool to have one and walk around with it,..