| To: | "Discussion of Ten-Tec Equipment" <tentec@contesting.com> |
|---|---|
| Subject: | Re: [TenTec] Station and AC Ground |
| From: | "Gary Hoffman" <ghoffman@spacetech.com> |
| Reply-to: | Discussion of Ten-Tec Equipment <tentec@contesting.com> |
| Date: | Tue, 29 Nov 2005 16:37:44 -0500 |
| List-post: | <mailto:tentec@contesting.com> |
> > The first (RF) is somewhat hopeless, as was pointed out, because a > real (broadband) RF ground has to be very short, say not more than > 1/10 wavelength, to avoid reactive and resonant effects. That means > shorter than 1 meter for 10 meter operations, etc. That's not > practical in most installations. You don't really need a "true" RF > ground, if your antenna system is balanced properly - no common mode > RF on the feed lines, etc. > Or....a half wave ground wire, to repeat the low impedance at earth right at the radio. And, since lightning is RF, I feel that a real RF ground is important, even for lightning. 73 de Gary, AA2IZ |
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