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Old July 23rd 06, 07:49 PM posted to rec.radio.amateur.antenna,rec.radio.amateur.homebrew,rec.radio.shortwave
Telamon Telamon is offline
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First recorded activity by RadioBanter: Jul 2006
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Default Wellbrook ALA 100 with Rotator - Construction Details

In article ,
"Guy Atkins" wrote:

I did mention the spiral configuration to him, but he didn't comment on it.
The construction seemed to be easier, so it's the only style I considered
from the start.

Guy

wrote in message
ups.com...

Ah, so your loops are concentric. I ran my parallel. Did you discuss
this with Andy?


Spiral concentric or coil will change the pattern but since the antenna
is so electrically small it won't make much difference unless you want
to use the nulls. I would expect that a coil wound would be best. I you
are concerned about using a null in the antenna pattern then go one turn.

--
Telamon
Ventura, California