Remote controlled Avatar question.

[Banefull]

Some basic communication theory 101: Let us imagine if it were a radio transmission. These days, most information is transmitted digitally (gray code binary in particular) because it subject to less interference; however, human brain works with analogue signals. Analogue signals potentially can have infinite resolution unlike signal digital signals but they have are very prone to disruptions from outside "noise." Neither of these drawbacks is ideal if you are trying to control an Avatar. If the link machines transmitted in analogue, the range would be extremely short. If you move far away, you will find that your body will twitch and convulse because the transmission is being subjected to small variations in signal amplitude difference. If the transmission were digital and then converted to analogue inside your body, then you would find that you could only move your body parts up to a certain precision. For instance you might find that you could rotate your arm to 30.001 degrees and 30.002 degrees but not 30.0015 degrees.

This picture sums it up very well.

where the grey line would be an analogue signal and the red line is a digital signal.

and that digital signal would be transmitted as a series of bits usually gray code which is different than standard BCD binary.

The main attraction of gray code is that each number has only a 1 bit difference from the previous value. If 1 bit were to accidentally change value, there is a much better of chance of correcting the error.

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The only real option would be quantum entanglement as mentioned above. If this is the case, I would imagine that the link machine is vastly more expensive than the avatar itself because reading all of those entangled electrons is a very time consuming process. It would have to be done fast enough to keep up with real time within a reasonable amount of delay.