AB7E wrote:
"I have a drone that I have once or twice used to plot the elevation
pattern of an antenna..."
Dave, here are a few papers on antenna measurement using a drone that
may interest you. I only did a quick search. There are probably many more.
https://etda.libraries.psu.edu/files/final_submissions/12846 (thesis
advisor: WA3FET)
https://www.mdpi.com/1424-8220/24/22/7395
https://hal.science/hal-03306719v1
https://repository.library.noaa.gov/view/noaa/31715/noaa_31715_DS1.pdf
https://www.dielectric.com/wp-content/uploads/2023/08/Near-Field-Drone-Measurements-of-Broadcast-Antennas.pdf
Here's a 1962 NBS paper on HF antenna siting. It addresses the Fresnel
zone and its roughness, sloping ground, elevated sites, and horizon
clearance.
https://www.govinfo.gov/content/pkg/GOVPUB-C13-71dde4139145270ba73cbd3f3c16f9a9/pdf/GOVPUB-C13-71dde4139145270ba73cbd3f3c16f9a9.pdf
Brian
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