Found the following by Brian Beasley K6STI on the *e-ham.com <http://e-ham.com>* web site. Ties in well with Stephen, W2WF's, paper "Grounds and Verticals" in the March BVARC Beacon "Waves and Coffee" column and on the BVARC Tech Pages Web site *https://bvarc.org/Tech/Ground_Verticals_Feb_07_2024.pdf <https://bvarc.org/Tech/Ground_Verticals_Feb_07_2024.pdf>* Description and URL's below.....
(snip) Rudy Severns, N6LF, has updated his writeup on ground parameter measurement with several new probe designs. A ground probe and NanoVNA let you measure the permittivity and conductivity of your local ground for use in antenna analysis software. Ground characteristics affect all antennas, but especially vertical antennas and antennas with low horizontal conductors. Accurate ground characteristics let you realistically compare horizontal and vertical designs. They let you evaluate ground-system loss and ground-reflection gain. Rudy's update: https://rudys.typepad.com/files/measuring-soil-electrical-characteristics---final.pdf Original writeup: https://www.antennasbyn6lf.com/files/ground_parameter_measurements_2.pdf Software to process ground probe measurements: http://ham-radio.com/k6sti/gnd.htm Brian -- K6STI (snip) Enjoy....Rick W5RH
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