To: | N4CW@aol.com, towertalk@contesting.com |
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Subject: | Re: [TowerTalk] Modelling a basic stack |
From: | Pete Smith <n4zr@contesting.com> |
Date: | Sun, 09 May 2004 19:58:52 -0400 |
List-post: | <mailto:towertalk@contesting.com> |
At 06:11 PM 5/9/2004, N4CW@aol.com wrote:I've never modelled a stack before. I have successfully modelled yagis, and This really isn't tough, Bert -- all the usual programs will model a stack like this just fine. I suspect you will find that 1/2 wavelength is a little close for optimum forward gain. You can build models of these antennas in any modeling program that incorporates taper corrections, simply by entering the length and diameter of each step in each element. Feed the two sources in phase and you're home free. I've done a lot of stack modeling, so if you run into specific issues please let me know and I'll try to help. 73, Pete N4ZR The World HF Contest Station Database was updated on April 26, 2004 2706 contest stations at www.pvrc.org/WCSD/WCSDsearch.htm _______________________________________________ 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. _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/listinfo/towertalk |
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