sup guys... i got a 690 rev B and haven't really got to test it a whole lot on Ka band yet. i was out driving today and a cop passed by me and a Ka alert came up right before hand. so i figured it was an I/O... but i wanted to know more. i turned around and down the road she was parked talking on the phone. didn't pick up a Ka until about 50 yards or so from her... then turned back around and drove by facing her... same thing. this kind of worries me... ???