Frankly, I'm a bit tired of these proposals transmit power by microwaves back to earth, especially so when frequencies such as 10GHz are either proposed or are

Frankly, I'm a bit tired of these proposals transmit power by microwaves back to earth, especially so when frequencies such as 10GHz are either proposed or are used as test frequencies. Do these people actually realize the likelihood of interference to RF and Microwave bands from potential intermodulation products that they'd cause? It would be an environmental disaster much worse than Musk's light-radiating satellites. I'd reckon that huge swathes of radio spectrum users includibg radio astronomers would be up in arms at such an outrageous proposal. I've nothing in principle against such a proposal but it needs to be done in a part of the spectrum that will not cause interference to communications - and that will take considerable research and planning. For instance in the infrared or THz spectrum but even then we'd need to take great care for many reasons. (Recently, I've heard of experiments to detect neutrinos in the THz spectrum so that may also be ruled out). I've strong thoughts about the inappropriate funding of this research in the 10GHz spectrum but I'll refrain from further comment for the moment. Just let's say I've insufficient adjectives in my magazine to ensure a knockout.