In the process of trying to correlate actual measured R+jX values vs NEC
models for an 80M inverted L with elevated radials, I was directed to a
paper by Rudy N6LF in QEX from 2009. I have used Rudy's approach and
have after many iterations achieved reasonable correlation between
actual and modeled numbers. The numbers were not what I expected but are
"believable"
It would be intellectually far more satisfying to be able to measure
conductivity and dielectric values through direct means.The ARRL Antenna
Handbook ( 22nd edition , page 3-21) references some work done by George
Hagan back in the 1980's using probes and a VNA. . The ARRL in its
infinite wisdom of course does not show the math involved in using this
method to directly measure and calculate conductivity and dielectric
constant. I have "probes" and a decent VNA ( AIM4300)
I am looking for a copy of:
HF Ground Measurements at the Lawrence Livermore National Laboratory
Field Site; /Applied Computational Electromagnetic's Society Journal and
News Letter, Vol. 3,Number 2, Fall 1988"
/
Any help appreciated with either a copy of the paper or a pointer to
where it might be downloaded. So far Google has not been my friend./
Dave
NR1DX
manuals@artekmanuals.com
/
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Dave Manuals@ArtekManuals.com www.ArtekManuals.com
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