DESC: The Channel Master model 9537 is a remote controlled antenna rotator control unit that replaces older Channel Master and Radio Shack rotator control units. There are only three control wires to connect, so installation is easy, and once the channel positions have been programmed into the unit all you have to do is enter the channel that you would like to watch on to the units remote control and the antenna turns! No more channel location stickers popping off of the control unit or guessing where the best position is for a certain channel!