Yes, it is actually a quite problem because this is something you cannot counter with encryption or other similar means.

http://en.wikipedia.org/wiki/TEMPEST

The power usage is on average 100mA.

Linearity: function's derivative is constant w.r.t. the parameter discussed. dT(K)/dK = -1.25/K^2 and this most certainly is not constant.

To clarify, the original title said that this was a method for _exponentially faster_ data transfer. That said, you got me in that it is not linear. As you have shown, that function is quadratically decreasing (which is _worse_ than linear). The title has been corrected since then, so I kind of got my point through.

Thanks, just noticed a small initialization issue there, fixibg that soon :)