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He was also technical director of a JPL Raytheon program that beamed power over a distance of one mile to a rectenna which intercepted a portion of the beam and converted it to 30 kilowatts of DC power with 84% efficiency.
Для тех кто в танке, провели исследовательскую програму в начале 70х годах. В результате получилось отбимить 30 киловат на на одну милю (1.9 или 1.7 км кажись) с КПД 84 процента.