Jim
Thanks , I wonder why google wouldn't return that. It looks like it
might be there.
Unfortunately you have to"apply" for an account, And it asks (
unnecessarily IMO ) for a lot of personal info. I choked that down and
applied we will see if they let me in ...so far no reply
Dave
NR1DX
On 2/13/2021 1:03 PM, Lux, Jim wrote:
On 2/13/21 9:59 AM, Artek Manuals wrote:
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
/
ACES website?
https://aces-society.org/newsletter.php
or maybe here...
https://aces-society.org/search.php?vol=3&no=2&type=2
check about 1/3 way down - a paper by Hagn
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