[TowerTalk] Measuring RF ground characteristics

[Artek Manuals]

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 at artekmanuals.com
/
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Dave Manuals at ArtekManuals.com www.ArtekManuals.com

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