A couple of weeks ago I posted about "falsing" following a tractor on the road... high K band readings... we were close to a cel tower... I thought it was interference from the tower bouncing/magnified by the wagon being towed behind the tractor (which, when you think about it the wagon looks like a giant radar horn on end).
It's harvest season round these parts... and today... the 945 alerts to two John Deere tractors... So I thought I'd do a little research... Guess what? Some of the bigger John Deere's have Radar ground speed sensors... Prolly running kband... Fortunately, they're not strong powerful units... but i pick 'em up about two blocks away..
Here's the link:
John Deere radar
So, if you're lookin fer tractors... you can find a good one with your RD!