I think this is new to many people. Don't feel alone in not
understanding. I sure am learning a lot by these experiments.
Mike-WE0H
Roger L wrote:
Dear Markus,
Maths, EM theory and Maxwell's equations were not my strong points at
all, so I'm struggling to understand what you are saying (this is my
weakness and not a weakness in your explanation).
I /think/ you are saying that at the sort of distances being achieved by
Stefan (~5.2kms) , the H-field component would be slightly weaker than
the E-field, so an E-field probe would result in marginally better
reception? At greater distances, the difference would not be significant.
Markus, if you have time, I have some more questions:
* We think Stefan's earth electrode signals are "making the hop"
without being aided by buried utilities. Is there any way of
confirming this from the field strengths measured using both H and
E-field antennas?
* Is Stefan likely to get much further using his earth electrode
antenna? i.e, by radiation
* Do you know (from theory) how a 300m high Marconi vertical and a
300m long earth electrode antenna are likely to compare as
antennas /radiating /a far field signal?
Thank you everyone who has been contributing to the discussion and
practical experimentation below 9kHz. It is totally absorbing. I just
wish I was more brainy!
73s
Roger G3XBM
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