"The radar uses a very low-intensity signal across a wide range of frequencies, so a TV or radio tuned to any one frequency would interpret the radar signal as a very weak form of static."
http://news.yahoo.com/s/space/20060627/sc_space/newradarisundetectableinventorclaims
I don't know what this means for those of us with radar detectors especially once the police start using this if this holds true.