Cranes can be controlled by a wireless radio remote device known as a radio remote control....
While using the radio remote control the transmitter device generates artificial waves to control the heavy machines....
The overhead cranes or electronic machines can be controlled and manipulated through the artificially generated waves....
The artificial waves are generated from the radio remote devices to control the electronic machines....
Wireless radio remotes are those devices that control electronic devices or heavy equipment machines such as cranes....
To control the crane or heavy equipment machine a wireless remote generates the artificial radio waves....
The artificial radio wave is generated to control the machine such as crane is called radio remote control....