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 w847FWqJ026013 for ; Tue, 4 Sep 2018 09:15:34 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1fx5TG-0005Fy-Kv for rs_out_1@blacksheep.org; Tue, 04 Sep 2018 08:09:54 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1fx5SQ-0005Fl-ER for rsgb_lf_group@blacksheep.org; Tue, 04 Sep 2018 08:09:02 +0100 Received: from mout01.posteo.de ([185.67.36.65]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.91_59-0488984) (envelope-from ) id 1fx5SN-0007O8-2V for rsgb_lf_group@blacksheep.org; Tue, 04 Sep 2018 08:08:59 +0100 Received: from submission (posteo.de [89.146.220.130]) by mout01.posteo.de (Postfix) with ESMTPS id 0DFB920EB3 for ; Tue, 4 Sep 2018 09:08:58 +0200 (CEST) X-DKIM-Result: Domain=posteo.de Result=Signature OK DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=posteo.de; s=2017; t=1536044938; bh=CkPAkAa2SKViGAcVnbWihNboyDhYuinhnAS3DqgwZTw=; h=Date:From:To:Subject:From; b=JTqwDmqGmO2zaUSamljNoyC8Yy7XfEY/CYBIPIlSCyJ4DK69VcjtLt+fefuvFBPUv w48/60KrvEpCWuTdIBTeBQr0Q1tkzjij3QJt0uEOS6aEccezjjdL457fG/wM/MqIOw ub50e5NeUw7i1SfDh7lv3z8y7SNbaHwlYte0LaAv5eBj5hw2Q9HxYXpQ1+bwdgfLWo QEBm0HfEaxRUgYUnfxexHnH4sdSBXPZJ9I0fjXCUhURzts458U0s7LcmH/oJppIHcW XhSaGxo+SvUaVEyIllqtNrCGmr4i2/1AWhvlthBd+tR3FVMMfN2+Sp1UDcMcb4Rmbp Rp+bhpO0F93xw== Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 424Hxj3bdsz6tm7 for ; Tue, 4 Sep 2018 09:08:57 +0200 (CEST) Message-ID: <5B8E2F89.6070502@posteo.de> Date: Tue, 04 Sep 2018 09:08:57 +0200 From: DK7FC User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <16595df30ae-1ebc-71c3@webjasstg-vaa24.srv.aolmail.net> <6dad9712-7675-dd5d-899b-964b7a25ab38@abelian.org> <99b31835-7364-79b4-d56f-b6f76e25fad8@abelian.org> <5B8AE987.2090205@posteo.de> <5B8D2615.9090307@posteo.de> <25871536000346@iva5-e9a4c5420a84.qloud-c.yandex.net> <5B8D87FA.3020603@posteo.de> <258741536010648@sas1-0a6c2e2b59d7.qloud-c.yandex.net> <5B8E23A6.8020501@posteo.de> In-Reply-To: <5B8E23A6.8020501@posteo.de> X-Spam-Score: -2.3 (--) 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: Roman, ULF, Some more thoughts. This distance is in the far field for frequencies down to 870 Hz. In my view, it is out of the range of 'local tests'. Think about the GHz guys operating above 100 GHz. They deal with the same distances and spend the same efforts and money :-) It and it is my goal to go down as deep as possible. It is a pleasure to work with this type of antenna and i can already see that it outperforms my large inv-L below 3 kHz. The ease of use is fascinating. You don't need a coil to resonate it and you don't need to hande high voltages (although i like high voltages :-) ). For this antenna, the limiting factor is the TX power and time! I need to transmit from batteries and stay there during the transmission, so i can't run a carrier for weeks. But i could apply 2 kW! :-) So far i managed to apply 255 W (RF) and the goal is to reach 500 W. In a next step i need to improve the RX site since the small loop becomes quite deaf below 2 kHz it seems. [...] Content analysis details: (-2.3 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at http://www.dnswl.org/, medium trust [185.67.36.65 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: 66d07794ca19cd68f7d6cc289cd4ac18 Subject: Re: ULF: Carrier on 2970.005 Hz Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.0 required=5.0 tests=none 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 Roman, ULF, Some more thoughts. This distance is in the far field for frequencies down to 870 Hz. In my view, it is out of the range of 'local tests'. Think about the GHz guys operating above 100 GHz. They deal with the same distances and spend the same efforts and money :-) It and it is my goal to go down as deep as possible. It is a pleasure to work with this type of antenna and i can already see that it outperforms my large inv-L below 3 kHz. The ease of use is fascinating. You don't need a coil to resonate it and you don't need to hande high voltages (although i like high voltages :-) ). For this antenna, the limiting factor is the TX power and time! I need to transmit from batteries and stay there during the transmission, so i can't run a carrier for weeks. But i could apply 2 kW! :-) So far i managed to apply 255 W (RF) and the goal is to reach 500 W. In a next step i need to improve the RX site since the small loop becomes quite deaf below 2 kHz it seems. 73, Stefan Am 04.09.2018 08:18, schrieb DK7FC: > Hello Roman, > > The distance between RX and TX is 55.6 km in all these experiments, > also on 2970/2470/1970 Hz. The report for 1570 Hz (the 191 km band) > will follow today. > Unfortunately this loop has its minimum pointing to Russia and the ERP > is very low so it is most unlikely to receive a signal from this antenna. > But the ongoing transmissions on 17.4701 kHz could be received > relatively easily in 3000 km distance. > > 73, GD DX, > Stefan > > Am 03.09.2018 23:37, schrieb Roman: >> GA Genosse Funkamateur Stefan! >> >> Vielen dank! >> MNY TNX for info! >> >> Tell me pse, whats QRB on your DFCW-90 experiment and on 2970|1970 Hz? >> >> Best DX in your experiments! >> All russian LF looking to your experiments! -) >> >> 73! >> Roman >