This circuit converts surrounding radio frequency waves to electric power. It can provide 40 Volts at 10 Watts indefinitely. The output power can be improved playing with the antenna. Placing the antenna near large metal objects gives more power. Antenna should be more than 150 feet long wire, placed horizontally as high as you can for best results. The pointing direction also is critical to the output. Keep the circuit as close to antenna as posible. You can also experiment with dishes etc.

It appears that antenna placement is critical to output. Without an earth ground, the output appears to be cut by about 50%. An earth ground should consist of some type of metallic, conductive pipe or rod. It should be hammered down to a depth of 10-30 ft for the best results. Another experiment would be to use a directional dish antenna to

focus the RF energy onto the antenna.