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 v9BFsSd1030954 for ; Wed, 11 Oct 2017 17:54:31 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1e2J8X-0008Fu-RI for rs_out_1@blacksheep.org; Wed, 11 Oct 2017 16:41:33 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1e2J8W-0008Fj-MW for rsgb_lf_group@blacksheep.org; Wed, 11 Oct 2017 16:41:32 +0100 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 1e2J8T-00073o-Sz for rsgb_lf_group@blacksheep.org; Wed, 11 Oct 2017 16:41:31 +0100 Received: from submission (posteo.de [89.146.220.130]) by mout02.posteo.de (Postfix) with ESMTPS id B35B62127C for ; Wed, 11 Oct 2017 17:41:25 +0200 (CEST) Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 3yByrN53hMz10J7; Wed, 11 Oct 2017 17:41:19 +0200 (CEST) Message-ID: <59DE3B9F.70705@posteo.de> Date: Wed, 11 Oct 2017 17:41:19 +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, =?UTF-8?B?0JDQvdC00YDQtdC5INCa0LvQuNC80L4=?= =?UTF-8?B?0LI=?= References: <15ec7c794b3-bff-66@webjas-vac136.srv.aolmail.net> <59D2BD65.4080909@posteo.de> <59D4B109.27652.1415B4FA@mike.dennison.ntlworld.com> <7737095b-edc9-8b5f-ebf5-2a6b2884d425@abelian.org> <59D7940D.7080102@posteo.de> <59DA4E78.7020804@posteo.de> <25d84b3d-2077-a3dc-426c-3f9b92940205@abelian.org> <59DB730D.4080803@posteo.de> In-Reply-To: <59DB730D.4080803@posteo.de> 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 the administrator of that system for details. Content preview: Hi VLF, The recent 1 character message on 6470 Hz was received at RN3AUS in nearly 2000 km distance, a land path, with very good Eb/N0. 4 characters would have been possible. That was a night time transmission. Now since a few days there is a SpecLab instance 'listening' on 6470.1 Hz at RC4HAA in 2877 km distance (LO53CF) from here, configured for EbNaut reception. The daily 16 character night time transmission is still going on, now 6 days are completed. After 4 days, there was no result at RN3AUS and obviously not at SQ5BPF. [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 HTML_MESSAGE BODY: HTML included in message X-Scan-Signature: b8b011f938af8abc4b241335cabd0691 Subject: VLF: Trying the impossible, once more Content-Type: multipart/alternative; boundary="------------050407090403020200090402" 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=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 This is a multi-part message in MIME format. --------------050407090403020200090402 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi VLF, The recent 1 character message on 6470 Hz was received at RN3AUS in nearly 2000 km distance, a land path, with very good Eb/N0. 4 characters would have been possible. That was a night time transmission. Now since a few days there is a SpecLab instance 'listening' on 6470.1 Hz at RC4HAA in 2877 km distance (LO53CF) from here, configured for EbNaut reception. The daily 16 character night time transmission is still going on, now 6 days are completed. After 4 days, there was no result at RN3AUS and obviously not at SQ5BPF. So there is some free time for a next experiment during daytime. Stacking EbNaut messages works very well with the tool by DF6NM. So one could try to get a result over many daytime transmissions. I have the idea to run a few more single-character transmissions. This is also a good chance for newcomers to get a first decode in EbNaut on VLF. With some luck, RN3AUS may decode them over the day time path, as well as SQ5BPF. And with even more luck, a decode at RC4HAA? Trying the impossible: *f = 6470.100000 Hz Start time: 12.October.2017 06:00:00 UTC Symbol period: 180 s Characters: 1 CRC bits: 0 Coding 8K19A Duration: 9h36min Antenna current: 300 mA* 73, Stefan --------------050407090403020200090402 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit Hi VLF,

The recent 1 character message on 6470 Hz was received at RN3AUS in nearly 2000 km distance, a land path, with very good Eb/N0. 4 characters would have been possible. That was a night time transmission.
Now since a few days there is a SpecLab instance 'listening' on 6470.1 Hz at RC4HAA in 2877 km distance (LO53CF) from here, configured for EbNaut reception.
The daily 16 character night time transmission is still going on, now 6 days are completed. After 4 days, there was no result at RN3AUS and obviously not at SQ5BPF.

So there is some free time for a next experiment during daytime. Stacking EbNaut messages works very well with the tool by DF6NM. So one could try to get a result over many daytime transmissions.
I have the idea to run a few more single-character transmissions. This is also a good chance for newcomers to get a first decode in EbNaut on VLF.
With some luck, RN3AUS may decode them over the day time path, as well as SQ5BPF. And with even more luck, a decode at RC4HAA?
Trying the impossible:

f = 6470.100000 Hz
Start time: 12.October.2017  06:00:00 UTC
Symbol period: 180 s
Characters: 1
CRC bits: 0
Coding 8K19A
Duration: 9h36min
Antenna current: 300 mA

73, Stefan
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