This is not the case at all. The only ones that will filter it out are ones that have the software to learn/remember false alarms that you drive by daily. I have the V1, which is a pretty good detector and it pics up on this signal. In fact I didnt use it in my Audi because it has the blind spot warning system that sets off the detector constantly.I'm surprised that so-called 'good radar detectors' would be affected. The only radar detector I worry about is mine. This signal should be filtered out by any top shelf detector.