| To: | towertalk@contesting.com |
|---|---|
| Subject: | Re: [TowerTalk] 160m "T" antenna loading coil. |
| From: | Steve Hunt <steve@karinya.net> |
| Date: | Mon, 07 Nov 2011 16:58:00 +0000 |
| List-post: | <towertalk@contesting.com">mailto:towertalk@contesting.com> |
A loading coil at the base of the vertical section doesn't alter Rrad, but one positioned at the top of the vertical section *does*, by altering the current distribution. With the dimensions given, and assuming #14 wire, a 60uH (Q=200) loading coil alters the base impedance from 9-j330 to 16+j0. 73, Steve G3TXQ _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/listinfo/towertalk |
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