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 w6NJYYR5001736 for ; Mon, 23 Jul 2018 21:34:36 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1fhgVw-0002xb-6u for rs_out_1@blacksheep.org; Mon, 23 Jul 2018 20:29:00 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1fhgVu-0002xS-7d for rsgb_lf_group@blacksheep.org; Mon, 23 Jul 2018 20:28:58 +0100 Received: from mx-out.tlen.pl ([193.222.135.140]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.91_59-0488984) (envelope-from ) id 1fhgVr-0006BV-MU for rsgb_lf_group@blacksheep.org; Mon, 23 Jul 2018 20:28:57 +0100 Received: (wp-smtpd smtp.tlen.pl 4826 invoked from network); 23 Jul 2018 21:28:52 +0200 Received: from 89-71-156-80.dynamic.chello.pl (HELO LAPTOPCAAOTGEB) (bxi@go2.pl@[89.71.156.80]) (envelope-sender ) by smtp.tlen.pl (WP-SMTPD) with ECDHE-RSA-AES256-GCM-SHA384 encrypted SMTP for ; 23 Jul 2018 21:28:52 +0200 From: "Marcin" To: References: <5B54CCCB.6060903@posteo.de> In-Reply-To: <5B54CCCB.6060903@posteo.de> Date: Mon, 23 Jul 2018 21:28:49 +0200 Message-ID: <015a01d422bb$636e0390$2a4a0ab0$@go2.pl> MIME-Version: 1.0 X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQGK+X/mQMWyuRdjsqX4eNmU0jy1AgH6HXhZpR+ytPA= Content-Language: pl X-WP-MailID: 003f49a1f7f88cf40d18d3e7578f29b3 X-WP-AV: skaner antywirusowy Poczty o2 X-WP-SPAM: NO 0000000 [4UP0] X-Spam-Score: 0.3 (/) 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: Hello Stefan A very interesting idea for an experiment. Looking at the video below should get good results. https://www.youtube.com/watch?v=sWsdaSmWg7E 73! Marcin SQ2BXI [...] Content analysis details: (0.3 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [193.222.135.140 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 T_KAM_HTML_FONT_INVALID BODY: Test for Invalidly Named or Formatted Colors in HTML 0.0 HTML_MESSAGE BODY: HTML included in message 0.3 PLING_QUERY Subject has exclamation mark and question mark X-Scan-Signature: b2000330e4064ca60a9f57e731b892da Subject: LF: RE: Earth antenna transmissions on a guide rail?!?? Content-Type: multipart/alternative; boundary="----=_NextPart_000_015B_01D422CC.26F91D80" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.7 required=5.0 tests=HTML_40_50,HTML_MESSAGE, PLING_QUERY 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 This is a multipart message in MIME format. ------=_NextPart_000_015B_01D422CC.26F91D80 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Hello Stefan A very interesting idea for an experiment. Looking at the video below should get good results. https://www.youtube.com/watch?v=3DsWsdaSmWg7E 73! Marcin SQ2BXI =20 From: owner-rsgb_lf_group@blacksheep.org = On Behalf Of DK7FC Sent: Sunday, July 22, 2018 8:28 PM To: rsgb_lf_group@blacksheep.org Subject: VLF: Earth antenna transmissions on a guide rail?!?? =20 Hi all,=20 During the weekend i am in the Pf=C3=A4lzer Wald again which is such a = nice place to be! I already installed a fixed E field antenna for = VLF/ULF reception in JN39XI06 = :-) Now i have the idea to use a guide rail (attachment!) as an electrode = for a earth electrode antenna! There is a perfect road which is not much = frequented and where no way is crossing so i could temporary install a = long wire on the ground between two of these guide rails. I would assume = they provide a good grounding. They are located on a relatively high = hill/mountain with stony ground. The mountain is very steep there and in = some distance, 200m deeper, there is a brook.. With some luck the ground losses can be near 200 Ohm? Maybe rather 300 = Ohm. I'm going to prepare things and plan to transmit for some time next = weekend. If the ground loop actually acts like a loop, the bearing = should be 135 deg, so it will be in a 45 deg angle towards my QTH where = my grabber is listening in 55 km distance. That's quite a good distance = for testing! I'd like to try LF and VLF, maybe ULF it all works well. A BTW the wire length will be 860 m! However there are two guide rails = in a shorther distance, about 450 m. I will try the shorter length = first, to get an impression of the loss resistance and to see if = something is visible at all :-) 73, Stefan ------=_NextPart_000_015B_01D422CC.26F91D80 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable

Hello Stefan
A very interesting = idea for an experiment.
Looking at the video below should get good = results.

https://www.youtub= e.com/watch?v=3DsWsdaSmWg7E

73! Marcin = SQ2BXI

 

From: owner-rsgb_lf_group@blacksheep.org = <owner-rsgb_lf_group@blacksheep.org> On Behalf Of = DK7FC
Sent: Sunday, July 22, 2018 8:28 PM
To: = rsgb_lf_group@blacksheep.org
Subject: VLF: Earth antenna = transmissions on a guide rail?!??

 

Hi all, =

During the weekend i am in the Pf=C3=A4lzer Wald again which is = such a nice place to be! I already installed a fixed E field antenna for = VLF/ULF reception in JN39XI06 = :-)

Now i have the idea to use a guide rail (attachment!) as = an electrode for a earth electrode antenna! There is a perfect road = which is not much frequented and where no way is crossing so i could = temporary install a long wire on the ground between two of these guide = rails. I would assume they provide a good grounding. They are located on = a relatively high hill/mountain with stony ground. The mountain is very = steep there and in some distance, 200m deeper, there is a = brook..

With some luck the ground losses can be near 200 Ohm? = Maybe rather 300 Ohm. I'm going to prepare things and plan to transmit = for some time next weekend. If the ground loop actually acts like a = loop, the bearing should be 135 deg, so it will be in a 45 deg angle = towards my QTH where my grabber is listening in 55 km distance. That's = quite a good distance for testing! I'd like to try LF and VLF, maybe ULF = it all works well.

A BTW the wire length will be 860 m! However = there are two guide rails in a shorther distance, about 450 m. I will = try the shorter length first, to get an impression of the loss = resistance and to see if something is visible at all :-)

73, = Stefan

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