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Old February 15th 05, 10:06 PM
Dan Jacobson
 
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Default trees are nature's towers and antenna combined

Hmmm, don't see much these days on this 100 year old concept:
http://www.rexresearch.com/squier/squier.htm "trees --- all trees, of
all kinds and all heights, growing anywhere --- are nature's own
wireless towers and antenna combined."

Perhaps wire is cheap these days so there is little practicality left
to his idea?
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Old February 16th 05, 12:21 AM
Dave Platt
 
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In article ,
Dan Jacobson wrote:

Hmmm, don't see much these days on this 100 year old concept:
http://www.rexresearch.com/squier/squier.htm "trees --- all trees, of
all kinds and all heights, growing anywhere --- are nature's own
wireless towers and antenna combined."

Perhaps wire is cheap these days so there is little practicality left
to his idea?


His arrangment sounds a bit like a shunt-fed antenna tower. Perhaps
the "brushy" nature of the top of a tree makes it behave a bit like a
"fat" dipole, with the broad bandwidth the page speaks of?

One limitation of these is clear from the article - they're seasonal.
When winter comes and the sap is gone down into the roots, the
antenna's performance degrades quite badly.

Hmmm... I wonder... would QRO operation on a sugar maple in April
leave you with a bucket full of maple-flavored Fizzies?

--
Dave Platt AE6EO
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Old February 16th 05, 02:16 PM
Michael Coslo
 
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Default

Dave Platt wrote:
In article ,
Dan Jacobson wrote:


Hmmm, don't see much these days on this 100 year old concept:
http://www.rexresearch.com/squier/squier.htm "trees --- all trees, of
all kinds and all heights, growing anywhere --- are nature's own
wireless towers and antenna combined."

Perhaps wire is cheap these days so there is little practicality left
to his idea?



His arrangment sounds a bit like a shunt-fed antenna tower. Perhaps
the "brushy" nature of the top of a tree makes it behave a bit like a
"fat" dipole, with the broad bandwidth the page speaks of?

One limitation of these is clear from the article - they're seasonal.
When winter comes and the sap is gone down into the roots, the
antenna's performance degrades quite badly.

Hmmm... I wonder... would QRO operation on a sugar maple in April
leave you with a bucket full of maple-flavored Fizzies?



I also wonder what all this would do to the tree. While it wouldn't be
such a big deal in the woods, I wouldn't want to kill the trees in my yard.

- Mike KB3EIA -

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Old February 16th 05, 02:29 AM
Hal Rosser
 
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"Dan Jacobson" wrote in message
...
Hmmm, don't see much these days on this 100 year old concept:
http://www.rexresearch.com/squier/squier.htm "trees --- all trees, of
all kinds and all heights, growing anywhere --- are nature's own
wireless towers and antenna combined."

Perhaps wire is cheap these days so there is little practicality left
to his idea?


I think my dad's old Swan 500 could load up into a rusty nail in a pine
tree.




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Old February 16th 05, 09:59 PM
John Franklin
 
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I think my dad's old Swan 500 could load up into a rusty nail in a pine
tree.


I think any of the older rigs with PI networks in the output circuit
could do that.


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