|To:||Bill Tippett <firstname.lastname@example.org>, email@example.com|
|Subject:||Re: [TowerTalk] Modelling a basic stack|
|From:||Pete Smith <firstname.lastname@example.org>|
|Date:||Mon, 10 May 2004 07:25:54 -0400|
At 10:51 PM 5/9/2004, Bill Tippett wrote:
Bert, I would first use YO7 to optimize the antennas in their free space stacked configuration. YO7 already has the A50-5S in the database so it is simply a matter of selecting it and the stacking distance you want to try. YO7 is still available and is supported by K6STI. Brian can be reached at bbACn2.net where AC is the new Morse symbol for @.
This raises a question. I have always had the impression that antennas in an HF stack, even if first optimized in free space at the planned stacking distance, would be de-optimized (is that a word?) once returned to the "above ground" environment, because the ground plane also figures in the performance of each antenna, and the antennas are different distances from it.
73, Pete N4ZR
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