How many second delay does it take to operate a remote control object on the Moon from the Earth?

And let's say the remote control object is a camera in case it matters. And let's say the year was 1972.How many second delay does it take to operate a remote control object on the Moon from the Earth?
As you have been told there is a several second delay for a radio signal to get to the moon. Traditional remote control would double this time as video signal takes time to reach the earth, you need to react to what you see and then the control signal has to travel back to the moon





Remote operation of the lunar rover camera captured the take off of the LM. So how did the camera track the LM if there was such a long delay?.... Easy, the flight path and rate of ascent was know as well as the LM trajectors. The Rover camera was oriented in a position to easily track the take off with simple tilt and minimal pan movements as well as a wide angle setting.





Then on the ground at about T minus 3or 4 seconds the camera operator (Ed Fendell) started to operate the camera in anticipation of where the LM would be in its flight path. So by the time the controls signals reached the moon the camera started to move as the LM took off and track the LM.





http://videosift.com/video/Last-Humans-o鈥?/a>How many second delay does it take to operate a remote control object on the Moon from the Earth?
The distance to the Moon is around 3.84 x10^8 meters (on average, it varies). A radio transmission travels at the speed of light, which is 3 x 10^8 m/s. So, by dividing, it would work out to about 1.28 sec. for the transmission one way. So, if an operator on Earth were responding to an event he saw on the Moon, the signal would take 1.28 sec to reach Earth, the operator would need some time to react, then any action taken would take another 1.28 sec to get back to the camera on the Moon. So, transit time, around 2.6 seconds, then add in reaction time, you'd have around 3 seconds of delay (roughly).
A radio signal travels at about 300 000 km/sec.





The moon is about 400 000 km from the earth.





400 000/300 000 = 1,33 secs before the remote control operated.





However, it would then take a similar period of time, for you to see the effect on your terrestrial TV screen.
To operate it will take about 1 second. To see the result it will take another rough Second. BUT in 1972 they knew the exact ignition time, and the relative trajectory. So they just sent the commands and crossed their fingers. You will see they didn't get it exactly right.





YES we did land on the moon.