[Al Skierkiewicz]

Originally Posted by mtaman02

I used a brand new DB9 Cord and put the radio next to the OIs Radio, Put the robot up on wooden chocks and guess what I still had problems and this time the robot wasn't even moving it the signal would just come and go randomly and I said before in prior posts I had this robot in a room where no interference can exsist.

Mike,
Putting radios close together can be just as much a problem as mounting next to metal or being far away. The high RF levels may just overload the receivers at that close a distance causing distortion in the receiver front end (preamp).