I have a VEXplorer and was wanting to get better range, like 1 mile preferrably.I'm new to the robot scene, i know how to get a better video camera to get that distance, but was wondering how i should go about the robot controller. Can i get a different transmitter or receiver? Its operating now on 27 MHz frequency,can i change the frequency with a chip replacement? I guess really what i need to know is what do i need to get that range...or as much range as possible if not that range? Thanks