We are blessed on this list by the contributions of and interchange with
brilliant engineers like Jim Lux and W4EF at NASA, who have us in space
and with scientific vehicles on the moon, and another who revolutionized
antenna modeling decades ago.
73, Jim K9YC
On 3/4/2026 1:24 AM, Brian Beezley wrote:
Jim Lux said:
"what would be interesting is a probe design that doesn't require
penetrating the surface (e.g. I could put it on my concrete driveway)"
Jim, here is an interesting survey of the many ways to measure ground
constants. I wish it had more detail on some of the more obscure
methods. But the data section is fascinating. Where else are you going
to find the HF dielectric constant of dry peridotite on the Kola Peninsula?
https://scispace.com/pdf/measurement-of-earth-medium-electrical-
characteristics-4x03gkvvc1.pdf
Brian
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