Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-0.7 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, RCVD_IN_DNSWL_MED,SPF_PASS,SUBJ_ALL_CAPS autolearn=ham autolearn_force=no version=3.4.0 X-Spam-DCC: EATSERVER: mailn 1166; Body=3 Fuz1=3 Fuz2=3 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 v486eICf028347 for ; Mon, 8 May 2017 08:40:19 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1d7cHc-00073F-Fd for rs_out_1@blacksheep.org; Mon, 08 May 2017 07:36:36 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1d7cHc-000736-3t for rsgb_lf_group@blacksheep.org; Mon, 08 May 2017 07:36:36 +0100 Received: from lethe.lipkowski.org ([178.32.151.135] helo=lipkowski.org) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1d7cHZ-0007hf-4n for rsgb_lf_group@blacksheep.org; Mon, 08 May 2017 07:36:34 +0100 Received: from mailn.lipkowski.org (localhost [127.0.0.1]) by lipkowski.org (8.14.4/8.14.4/Debian-8+deb8u1) with ESMTP id v486adLj028308 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Mon, 8 May 2017 08:36:39 +0200 Received: from localhost (sq5bpf@localhost) by mailn.lipkowski.org (8.14.4/8.14.4/Submit) with ESMTP id v486acc2028305 for ; Mon, 8 May 2017 08:36:38 +0200 X-Authentication-Warning: mailn.lipkowski.org: sq5bpf owned process doing -bs Date: Mon, 8 May 2017 08:36:38 +0200 (CEST) From: Jacek Lipkowski To: rsgb_lf_group@blacksheep.org In-Reply-To: <590E020A.1050802@posteo.de> Message-ID: References: <15bd53dda31-14f8-1cb1c@webprd-m59.mail.aol.com> <590B9892.9010406@posteo.de> <1493995971.279577405@f347.i.mail.ru> <590CA917.70808@posteo.de> <590CEE68.4000507@posteo.de> <590E020A.1050802@posteo.de> User-Agent: Alpine 2.11 (DEB 23 2013-08-11) MIME-Version: 1.0 Content-ID: X-Scanned-By: MIMEDefang 2.75 X-Scanned-By: MIMEDefang 2.75 on 10.1.3.10 X-Scan-Signature: c6a8ca7629fac3d35507e5a7fd3cbf17 Subject: Re: VLF: 6470... Content-Type: MULTIPART/MIXED; BOUNDARY="17435139-994769150-1494225074=:685" 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 Status: O X-Status: X-Keywords: X-UID: 11619 This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --17435139-994769150-1494225074=:685 Content-Type: TEXT/PLAIN; CHARSET=ISO-8859-15; FORMAT=flowed Content-Transfer-Encoding: 8BIT Content-ID: I think i've decoded the 06.May.2017   18:00:00 UTC 6470.1Hz transmission, but 2-bit crc passes multiple decodes, most probable message: found rank 1 ber 4.1912e-01 Eb/N0 -0.0 M -2.227154732e+00 [xx] ps [ 75 -150 -120 -150 -120] carrier phase: 8.4 deg carrier Eb/N0: -2.3 dB carrier Es/N0: -19.08 dB carrier S/N: 8.28 dB in 30.6 uHz, -36.86 dB in 1Hz, -70.84 dB in 2.5kHz elapsed 256 but it might be also this: found rank 0 ber 4.6507e-01 Eb/N0 -7.3 M -2.034600258e+00 [yy] ps [ 5 150 150 150 150] carrier phase: 0.2 deg carrier Eb/N0: -3.2 dB carrier Es/N0: -19.96 dB carrier S/N: 7.40 dB in 30.6 uHz, -37.74 dB in 1Hz, -71.72 dB in 2.5kHz elapsed 40 The messages were sent off-list to Stefan for verification. I've had a lot of qrm from charged raindrops (receiver is overdriven most of the time when a charged cloud is overhead), and some thunderstorms. Thanks to Paul for uploading version 0.8b of the decoder today, which supports the 2-bit crc. VY 73 Jacek / SQ5BPF On Sat, 6 May 2017, DK7FC wrote: > Date: Sat, 06 May 2017 19:04:10 +0200 > From: DK7FC > Reply-To: rsgb_lf_group@blacksheep.org > To: rsgb_lf_group@blacksheep.org > Subject: VLF: 6470... > > Hi VLF, > > Switched back to 6470 Hz (just by putting the heavy stack of iron powder cores into the > coil). > A carrier is running on 6470.005 Hz at 470 mA since 16:10 UTC. > > There will be heavy rain very soon but i can transmit during rain. The only problem could be > that the resonance cannot be hold. We will see... > If all works well i'm trying a new attempt to nr Moscow (and all other stations who are > interested), despite the very strong QRN: > > f = 6470.100000 Hz > Start time: 06.May.2017   18:00:00 UTC > Symbol period: 60 s > Characters: 2 > CRC bits: 2 > Coding 16K21A > Duration: 9h, 4m, 0s > Antenna current: 470 mA > > 73, Stefan > > --17435139-994769150-1494225074=:685--