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July 11th 06, 03:23 AM posted to rec.radio.amateur.antenna

Roy Lewallen Roy Lewallen is offline

Roy Lewallen is offline

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First recorded activity by RadioBanter: Jun 2006

Posts: 1,374

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Radial versus reflection

wrote:
Hi to all

This is a related question to an earlier subject.

The ''help'' file of EZNEC says that ''The ground reflections which
cause the low-angle pattern reflections take place farther from the
antenna than most common radial ground systems extend, so ground radial
systems have little or no effect on the ground reflection phenomenon.''

My question: Supposing that there are radiations coming from the
antenna and going downwards (maybe at very steep angle), those rays
could be reflected on the radial system and could add to the pattern,
for any radial length...

The above sentence don't seems to validate such phenomenon.. So any
further explanation would be welcome.

Note the qualification "low-angle" in the sentence you quoted.
radiations going downward at a steep angle will be reflected off the
ground plane. I tried to explain this in my previous postings, but
apparently wasn't successful.

Roy Lewallen, W7EL

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