3 ms·
I wonder how much energy you can harvest from FM broadcast radios stations, those signals are pretty strong. Edit: I calculated a power flux density of 2.648µW
by y04nn 10y ago
I wonder how much energy you can harvest from FM broadcast radios stations, those signals are pretty strong.
Edit: I calculated a power flux density of 2.648µW/cm^2 from 3.16mV/m (70 dBµ) which is the 'city-grade contour' in the US.
There seem to exist a patent for that, from a company called Freevolt (http://www.getfreevolt.com/ http://www.getfreevolt.com/).
- jacquesm 10y agoPower law, so it's very much dependent on your distance to the transmitter. In NL some clever person figured out that he could power his fluorescent tubes from the broadcasting tower across the street and promptly got sued for theft...
- haneefmubarak 10y agoWas the case ultimately decided against him? I mean, if they're radiating energy into his property, I'd imagine he could do whatever he wants with it.
- jacquesm 10y agoI think yes, but it's long ago that I read about it. I'll try to dig up some info on this, it's interesting and now I want to know the exact details. I've found another reference to this(dutch): http://www.philipsradios.nl/forum/index.php?mode=thread&id=11835 http://www.philipsradios.nl/forum/index.php?mode=thread&id=1...