Thread: Follow up to Spike ;Bent dipoles?
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Old December 1st 15, 07:04 PM posted to uk.radio.amateur,rec.radio.amateur.antenna
Spike[_3_] Spike[_3_] is offline
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Default Follow up to Spike ;Bent dipoles?
On 30/11/2015 23:53, wrote:
In rec.radio.amateur.antenna Spike wrote:

The effective soil conductivity will be close to the fully conductive
value of the fibres - that's what percolation does. The high aspect
ratio fibres are a method of achieving that in a poorly conductive
medium such as soil.

One can not enter text into a model; numbers please.

Much of this has already been done, 'this' meaning studying the effects
of ground conductivity and number of radials (going up to 64) by N6LF in
QEX with the latest version being published in September/October this year.

Note for Brian Howie: the study encompasses 472 kHz, and it should be
noted that below 1MHz the soil electromagnetic parameters diverge
significantly from HF values. This implies that a different approach is
needed, and one of the articles looks at this - you might find this of
interest.


--
Spike

"Crime butchers innocence to secure a throne, and innocence struggles
with all its might against the attempts of crime"

- Maximilien Robespierre



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