Or, pare it back further to a standard four-square. If land is not a limiting
factor, you can always do a pair of four-squares to enhance the signal
incrementally in the four additional sub-directions. Hardly anyone would think
it would be a good bang for the buck, I don't think, versus a single
four-square.
73 - Rich, KE3Q
----- Original Message -----
From: SJ W3TX<mailto:superberthaguy@adelphia.net>
To: TowerTalk@contesting.com<mailto:TowerTalk@contesting.com>
Sent: Wednesday, April 13, 2005 10:15 PM
Subject: [TowerTalk] 160m 8-circle BSEF array
I was evaluating the simplicity of the feed system for the 8-circle tx/rx
array (4 active elements per steered direction) compared to the 9-circle
array (9 active elements per steered direction) in the 4th edition of
ON4UN's book Low Band DXing.
My thought process is this. The 8-circle array uses a simplified
broadside/endfire feed to only four (4) of the eight (8) elements...that is,
four of the elements are left un-fed no matter which direction the array is
steered. I would anticipate that the four unfed elements would impair the
gain and FB pattern if left floating. Would they impair the pattern if they
were unfed but grounded??
The difference in gain and FB is negligible between the 8-circle and the
9-circle. But the 9-circles feed system is light years more complicated and
perhaps not worth the additional complexity comapred to a simple BSEF
network??
73, Scott W3TX
_______________________________________________
See: http://www.mscomputer.com<http://www.mscomputer.com/> for "Self
Supporting Towers", "Wireless Weather Stations", and lot's more. Call Toll
Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA.
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http://lists.contesting.com/mailman/listinfo/towertalk<http://lists.contesting.com/mailman/listinfo/towertalk>
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
_______________________________________________
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