| To: | tentec@contesting.com |
|---|---|
| Subject: | Re: [TenTec] 17 Meter Antenna |
| From: | Jim Brown <k9yc@audiosystemsgroup.com> |
| Reply-to: | k9yc@arrl.net, Discussion of Ten-Tec Equipment <tentec@contesting.com> |
| Date: | Sun, 23 Nov 2014 09:39:16 -0800 |
| List-post: | <mailto:tentec@contesting.com> |
On Sun,11/23/2014 9:31 AM, Don Jones wrote: It is a well know fact that a dipole has 8dBi gain when it is 1/2 wavelength high do to the ground reflection. ON4UN is saying in his book that these compressed delta loops only have 1.6 dBi gain over average ground. This link is to a slide show for a presentation I've done several times about this set of issues. It doesn't address delta loops, but it does compare horizontally and vertically polarized antennas at various mounting heights. http://k9yc.com/VertOrHorizontal-Slides.pdf 73, Jim K9YC |
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