Both good here.
73/jeff/ac0c
alpha-charlie-zero-charlie
www.ac0c.com
On 12/24/21 12:37 PM, Phil G via TowerTalk wrote:
Neither the screenshot nor the download file will open for me.
Phil
W4NGU
Sent from my iPhone
On Dec 23, 2021, at 3:40 PM, Richard Smith <n6kt1@sbcglobal.net> wrote:
Hi Brian,
Thanks for another great contribution to the hobby! Your efforts are much
appreciated.
73, Rich, N6KT
On Thursday, December 23, 2021, 10:40:50 AM PST, Brian Beezley
<k6sti@att.net> wrote:
I've written a Windows program that calculates ground permittivity,
conductivity, and skin depth using impedance data from a soil probe and
vector network analyzer, such as a NanoVNA. Realistic ground parameters
are important when comparing horizontal and vertical antenna models.
General terrain descriptions and ground conductivity maps are much too
coarse. Ground parameters also vary with frequency. With a soil probe
you can determine the parameters of your local ground at the frequency
of interest. Skin depth can help you assess the limitation of a surface
probe when the ground is inhomogeneous.
See README.TXT for instructions. It includes references on making and
using a soil probe.
Screenshots:
http://ham-radio.com/k6sti/gnd.htm
Download:
http://ham-radio.com/k6sti/gnd.zip
Brian
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