Indeed. Such a writer may, however, have read up on studies on expected losses for the frequencies proposed for SPS. The book I mentioned covers a lot, but a pa

Indeed. Such a writer may, however, have read up on studies on expected losses for the frequencies proposed for SPS. The book I mentioned covers a lot, but a paper I just googled is available on scihub at your discretion. Here's the abstract: https://www.tandfonline.com/doi/abs/10.1080/00222739.1970.11688771 https://www.tandfonline.com/doi/abs/10.1080/00222739.1970.11... The paper is published in the Journal of Microwave Power, proposes using a wavelength around 10 cm, and with a vertical beam calculates a loss of 1% in clear skies and up to 10% loss with rain.