Cool experiment! Not to poke holes in your ideas...but won't putting an
RF powered device far away from everything reduce its power input
greatly? I don't really know what frequencies your device is picking up
on, but my understanding is that alot of the RF in the air is a
byproduct of AC power...which there may not be much of in the middle of
a field somewhere :)

Josh
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Kyrre Aalerud wrote:
> I know the theory and such behind this, but I was wondering if someone has
> made something useful with such a contraption?  Like powering a pic and a
> temp-logger in some far away place and then go back to it and collect it to
> look at the readings...  It could be left alone for very long because it
> would get power from a solid-state solution.

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