Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, RCVD_IN_DNSWL_MED,SPF_PASS autolearn=ham autolearn_force=no version=3.4.0 X-Spam-DCC: EATSERVER: mailn 1166; Body=2 Fuz1=2 Fuz2=2 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by lipkowski.org (8.14.4/8.14.4/Debian-8+deb8u1) with ESMTP id v2ACpUGF023187 for ; Fri, 10 Mar 2017 13:51:31 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1cmJxM-0000Yk-Ai for rs_out_1@blacksheep.org; Fri, 10 Mar 2017 12:47:40 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1cmJxL-0000Yb-WE for rsgb_lf_group@blacksheep.org; Fri, 10 Mar 2017 12:47:39 +0000 Received: from mout02.posteo.de ([185.67.36.66]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1cmJxI-0003q3-Fv for rsgb_lf_group@blacksheep.org; Fri, 10 Mar 2017 12:47:38 +0000 Received: from submission (posteo.de [89.146.220.130]) by mout02.posteo.de (Postfix) with ESMTPS id 445C720BCE for ; Fri, 10 Mar 2017 13:47:34 +0100 (CET) Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 3vfn916bDqzybC for ; Fri, 10 Mar 2017 13:47:33 +0100 (CET) Message-ID: <58C2A065.9080304@posteo.de> Date: Fri, 10 Mar 2017 13:47:33 +0100 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: <15a98cc579c-d3b-de27@webprd-a58.mail.aol.com> <08c5eae2-8c19-da4d-f5b9-30b83712932f@psk31.plus.com> <58BAEA1D.5050802@posteo.de> <58BB4FA5.4080601@posteo.de> <553e8ee3-01a4-5840-0353-e82b320b1751@psk31.plus.com> <58BC3339.6060301@posteo.de> <58BC8101.8040206@posteo.de> <58BF3619.8030704@posteo.de> <58C1F67F.1060005@posteo.de> <2382b63b-f81e-46f6-e9e6-422d4a3544d0@psk31.plus.com> In-Reply-To: <2382b63b-f81e-46f6-e9e6-422d4a3544d0@psk31.plus.com> X-Scan-Signature: 1708620d3ce65bee0beaaede7929769a Subject: Re: VLF: Tonite... Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit 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 X-Scanned-By: MIMEDefang 2.75 Status: RO X-Status: A X-Keywords: X-UID: 10822 Hi Eddie, Great result! We are doing these message transfers on VLF quite regularly now over such a distance. 8 characters with such a good Eb/N0. 21.89 dB in 25 uHz, that would be good for 20 characters! http://abelian.org/ebnaut/calc.php?sndb=21.89&snbws=0.000025&snmps=&code=8K19&sp=33&crc=12&nc=20&submit=Calculate Unfortunately i have just one antenna. There are several bands where i want to do experiments. I'm thinking about 2970 Hz again. Maybe i will run a 1-week transmission soon. The spectrogram at IK1QFK is very nice and the larger area confirms even more that my recent 1-week carrier is actually there, because there is nothing similar visible. It is now also clear that i run that transmission during the worst time, with the highest QRM/N :-/ 73, Stefan Am 10.03.2017 11:38, schrieb g3zjo: > On 10/03/2017 00:42, DK7FC wrote: > >> As already observed and decoded, another message is transmitted right >> now, same parameters as below, started 18 UTC. >> This should decode in Moscow :-) > Message received in IO92ng16, forwarded to TX HQ for confirmation. > > found XXXX XXX > list rank 0 > reference phase 0 0 0 0 > carrier RMS 7.732e-005 noise RMS 6.218e-006 > carrier S/N 21.89 dB in 24.8 uHz > carrier Es/N0 -9.39 dB > carrier Eb/N0 5.30 dB > info bit period 884.21 seconds > symbol error rate 442/1344 = 32.887 % > Es/N0 from symbol errors -10.0 dB > Eb/N0 from symbol errors 4.7 dB > Shannon capacity 18.9 bits/hour > Shannon efficiency 21.6 % > elapsed 9 seconds > > 73 Eddie G3ZJO >