> many early "stealth" radar detectors were equipped with a radar-detector-detector-detector circuit, which shuts down the main radar receiver when the detector-detector's signal is sensed, thus preventing detection by such equipment.
Well if the hidden camera can be shut down by turning on a hidden camera detector, then the hidden camera detector becomes a hidden camera jammer! All the better.
> many early "stealth" radar detectors were equipped with a radar-detector-detector-detector circuit, which shuts down the main radar receiver when the detector-detector's signal is sensed, thus preventing detection by such equipment.
https://en.m.wikipedia.org/wiki/Radar_detector#Radar_detecto...