OK well on a road near me it's a 25 MPH speed limit and there is one of those your speed is ____ radar signs. anyway i drove by it today and i saw that there was a cop behind it on the other side of the road so there is no way he can see the sign. I was wondering if he had some type of reciver or something that lets him know what the sign is displaying. It seems like he is looking for speeders but he had no radar or laser. Not that i saw anyway. And i had threat mode on my RD so i would have know if there were two radar sources.