In response to Dave C.,I put in 90 inches of test, totally isolated it, got 2 different engines recognized with a signal of 10. Soon as it went into the main, I got a no RF signal on the remote after it went on the main for a foot or two. I'm not more than 3 feet away from the tiu,it has power,I've put 2 sets of batteries in the remote. I keep thinking it has to be something simple. I've ordered the parts for buffers and have hope. This system can't be this problematic or nobody would use it. Anybody life in or near Fort Wayne, In?