I just read a long article on the spectrum raido system. I cant find the stupid magizine at the moment but pretty much you take your controler and plug this special intenna where the cristal is sopposed to go and you get this thing that looks like a reciever that goes on your car. You can then drive the car much farther than you could ever see it. and from what the article said the people testing the system couldent get the thing to glitch. Oh and you NEVER have to worry about being on someones frequency. How it works,,, I have no idea but it was $$$$ and for some dumb reason now I want one bad.!.!