How can i control to on and off the acmotor

[lokeshsuresh]

Motor is 6k.m far of distance from user how can this on and of

 

[BradtheRad]

Are there wires/cables already in place? Such as a phone line, internet line. You could send commands over that. It would require extra equipment.

Or there is wireless communication. There are walkie-talkie systems that use public radio bands. 6km might be within reach. I suppose you would create transmit coded commands in the audio range. Then you would decode the audio signals using extra equipment where the motor is located.