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Re: Topband: 160m vertical saltwater grounding

To: Rob Atkinson <ranchorobbo@gmail.com>, <topband@contesting.com>
Subject: Re: Topband: 160m vertical saltwater grounding
From: GEORGE WALLNER <aa7jv@atlanticbb.net>
Date: Thu, 09 Jan 2020 10:02:24 -0500
List-post: <mailto:topband@contesting.com>
Rob,
This is a good reference. Only one comment: I found recently on C6AGU that on 160 m the 2 -3 foot tidal change cause only a small change in the SWR of a tuned inverted L with its metal base standing in salt-water. I tuned the antenna to resonance with an SWR of 1.2 at mid-tide. Between low and high tides the SWR remained below 1.6. (Including losses in 300' of LMR-400 coax.)
73,
George,
AA7JV/C6AGU


On Thu, 9 Jan 2020 06:40:27 -0600
 Rob Atkinson <ranchorobbo@gmail.com> wrote:
Interesting information here:

http://www.arrl.org/files/file/Antenna%20Book%20Supplemental%20Files/22nd%20Edition/Seawater%20Grounds%20-%20by%20N6LF.pdf

Rob
K5UJ
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