Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by klubnl.pl (8.14.4/8.14.4/Debian-8+deb8u2) with ESMTP id w6TM3UIA011255 for ; Mon, 30 Jul 2018 00:03:31 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1fjtif-0007lS-S5 for rs_out_1@blacksheep.org; Sun, 29 Jul 2018 22:59:17 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1fjtib-0007lC-0y for rsgb_lf_group@blacksheep.org; Sun, 29 Jul 2018 22:59:13 +0100 Received: from mail-lj1-x234.google.com ([2a00:1450:4864:20::234]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.91_59-0488984) (envelope-from ) id 1fjtiY-0001wR-K7 for rsgb_lf_group@blacksheep.org; Sun, 29 Jul 2018 22:59:11 +0100 Received: by mail-lj1-x234.google.com with SMTP id u7-v6so8748910lji.3 for ; Sun, 29 Jul 2018 14:59:10 -0700 (PDT) X-DKIM-Result: Domain=gmail.com Result=Good and Known Domain DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to; bh=PwK/CXQhvSs2VYvtLTgw8L/HoDjNE+QDFdf5eYh5GA8=; b=ufQQ8EynACNg86OzSN4TNiMsEhqhe7PN680iNyPOULp4wRZH5e/PfhYRBCeFk6WLIc p35/ACDwsxC1GvpnqAj5POmHafv7e3wKrA5E2XwmDIkf4mfNIClRqDwK0fNOblvM8ZxL ylmWaDu0G84xVi6fqllEHemTiZPABWuT34SiP2+zLkoAveyshXysBYaIDnj0xvosEuxz nHic1l+9OKfXKb3M2QxtH/6T79iGmWKpqJi2ac6+zUqYPpNSe5euYMIKMce4NAzbM6mN pLuYqZMdQIShsRPe0DdqZ+3upe0YiQgXUrhnfCHsqL2bBsC6itmf0CSOsFrOLUuj/MJA xDww== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to; bh=PwK/CXQhvSs2VYvtLTgw8L/HoDjNE+QDFdf5eYh5GA8=; b=pV+DU6s6CY9HsTfTUs9fAVSrav7aP9JD4wU9tiHQu8j2JWfx0+eIQu9co71arZq9i2 afR22UziIyqfeGT9ZNXgF6qKru+AApBrq3gFy9Lp9r/mIpEk8JetBPgZaHCK+bNRCDuw NtPrTHDY31QU0XY5vk3AChwEjTGIFLjd+RiDf2bD73RpRAzW6yxalp+eLAfZs6Yhcb39 RISyKbOjTUfhicfhQnUzBFUdo4+XAUEqNwuEWILhF2Sd1YulLj3GX5iy/b9Kfs+kG5B0 L47XsmSm/pceDPXA6FZVMbMQK4/duK7L3Zi4LHyXLkMCvznlUSo9RxhHDkvdv+0xLp35 QKMA== X-Gm-Message-State: AOUpUlHfXMS1BW6f00WFaY/8zPbQp/pMXMo7LLlSMxzggpKYs7I1jE24 iArhsr/sMxad/v7/OKxFSgau+5L57GhMIGaVwwHpKA== X-Google-Smtp-Source: AAOMgpfVoyfuM7M/KNW7HDp1KibOaq2M1lpRNpiEHZpb15PmH3h1vvEMW5uAf+lIW6TsoZE4KnRkesr0Obl41zY5kns= X-Received: by 2002:a2e:5759:: with SMTP id r25-v6mr10562232ljd.125.1532901549552; Sun, 29 Jul 2018 14:59:09 -0700 (PDT) MIME-Version: 1.0 Received: by 2002:a2e:92c6:0:0:0:0:0 with HTTP; Sun, 29 Jul 2018 14:59:09 -0700 (PDT) In-Reply-To: <5B5E3754.402@posteo.de> References: <950e7b1c-8eab-0df9-9a15-abbc823545a4@gmail.com> <221ba650-6597-261f-4c6e-0089cb0b6a4d@gmail.com> <5B5E3754.402@posteo.de> From: Andy Talbot Date: Sun, 29 Jul 2018 22:59:09 +0100 Message-ID: To: LineOne X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see @@CONTACT_ADDRESS@@ for details. Content preview: Could an island be used as a slot radiator? Feed either side of the island. Andy www.g4jnt.com On 29 July 2018 at 22:53, DK7FC wrote: [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:234 listed in] [list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (andy.g4jnt[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: ad8e5dd63f7497fd9d71d15044db2e2b Subject: Re: LF: Earth antenna transmissions using sea water Content-Type: multipart/alternative; boundary="00000000000056390005722a74d1" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.8 required=5.0 tests=HTML_30_40,HTML_MESSAGE autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false --00000000000056390005722a74d1 Content-Type: text/plain; charset="UTF-8" Could an island be used as a slot radiator? Feed either side of the island. Andy www.g4jnt.com On 29 July 2018 at 22:53, DK7FC wrote: > Hello Steinar, > > Placing two electrodes into sea-water will give a low resistance but no > radiation resistance, so the efficiency will be poor. > Maybe you own one of the nice islands up there in Norway? A stony mountain > sourrounded by sea water and then a loop from the sea to the top of the > mountain and then back to the sea. That would be ideal. > > 73, Stefan > > Am 29.07.2018 23:41, schrieb LA5VNA: > >> >> Hi all , long time >> >> I'm thinking of doing an experiment with an "earth antenna" in sea water. >> I have a cabin located just 15m from the sea. What effect will sea water >> have, if I place two electrodes ca 250 meters apart from each other in the >> sea outside the cabin? >> >> The frequency I will use is 8KHz. >> >> LA5VNA Steinar >> >> >> >> >> >> >> >> > --00000000000056390005722a74d1 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Could an island be used as a slot radiator?=C2=A0 =C2=A0Feed either side of the island.

On 29 July 2018 at 22:53, DK7FC <selbe= rdenken@posteo.de> wrote:
H= ello Steinar,

Placing two electrodes into sea-water will give a low resistance but no rad= iation resistance, so the efficiency will be poor.
Maybe you own one of the nice islands up there in Norway? A stony mountain = sourrounded by sea water and then a loop from the sea to the top of the mou= ntain and then back to the sea. That would be ideal.

73, Stefan

Am 29.07.2018 23:41, schrieb LA5VNA:

Hi all , long time

I'm thinking of doing an experiment with an "earth antenna" i= n sea water. I have a cabin located just 15m from the sea. What effect will= sea water have, if I place two electrodes ca 250 meters apart from each ot= her in the sea outside the cabin?

The frequency I will use is 8KHz.

LA5VNA Steinar









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