Buck ....I think a lot of people have already done these kinds of tests.
Tom and others have given a pretty thorough run-down of the different
factors and results to expect. And, it all mostly agrees with modeling.
There are a lot of real world differences such as type of ground, nearby
terrain levels, buildings, overhead wires, and so on. Then, there are
economic factors.
About all you can do is to put up whatever you can live with at your locale.
Or, you could buy a perfect location somewhere and operate a remote station
via an internet link.
----------------- Wes Attaway (N5WA) -------------------
1138 Waters Edge Circle, Shreveport, LA 71106
318-797-4972 (Office) - 318-393-3289 (Cell)
Computer Consulting and Forensics
-------------- EnCase Certified Examiner ---------------
-----Original Message-----
From: Topband [mailto:topband-bounces@contesting.com] On Behalf Of Buck
wh7dx
Sent: Sunday, March 03, 2013 12:39 PM
To: topband@contesting.com
Subject: Re: Topband: Elevated Radials EPILOGUE
I can't believe that no one has put this really important question to bed
already.
If I had the land and an existing vertical with a large buried radial system
and another tower available.. I would try it out for the sake of Ham Radio
:-))
Put up another 160M vertical.. contact a few friends from around North
America or International and take some notes.
Put 2 1/4 wave elevated radials up in the air.. 10ft. Then try 30ft..
take some notes. How did the control sample compare (buried radials).
Should give you an idea of propagation and changes.
Put 4 1/4 wave in the air.. (if you noticed a difference with 10ft and
30ft - don't bother with the weaker one).... any difference with 4 versus
2? - I'd bet there is...
Put 12 1/4 wave in the air... how does that compare? Pretty close to
Control Sample?? What are the real world results. If it's one "S" unit
and I don't need to lay a mile-plus of wire buried in the ground.. that
might be enough.
I don't think people want to have a ton of elevated radials in the air
either - and I'm reading that you don't need to.
If you don't want to go with elevated - then bury as many in the ground as
you can - have fun...
Surely, someone has the room and energy (friends) to give us all the "final"
answer to this question. It would be a blast to do. We'll all pitch in
some beer money.
Please post the results.. :-)
P.S. Can someone with a tower also test out a low dipole around 30 ft and
then go to 60, 90 and 120 and post the results. I'm thinking a pulley and
rope and some quick 10 minutes adjustments for real world results... that
one's easy.
Bryan
WH7DX
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