What is radio remote control system? When artificially generated radio waves are used to control any type of machinery or equipment wirelessly, such kind of a control system is called a Radio Remote Control. It typically consists of a transmitter device which radiates data in the form of a radio wave in free space with the help of an antenna towards the receiver. The receiver then picks up this signal with an antenna and decodes the data. Radio remote control for EOT cranes are completely wireless systems which can transmit and receive data over very long distances.