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 vA9CJAeX019164 for ; Thu, 9 Nov 2017 13:19:13 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1eCliM-0000bj-TZ for rs_out_1@blacksheep.org; Thu, 09 Nov 2017 12:13:46 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1eCliL-0000ba-Tv for rsgb_lf_group@blacksheep.org; Thu, 09 Nov 2017 12:13:45 +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 1eCliF-00067M-AT for rsgb_lf_group@blacksheep.org; Thu, 09 Nov 2017 12:13:44 +0000 Received: from submission (posteo.de [89.146.220.130]) by mout02.posteo.de (Postfix) with ESMTPS id 4D0EF20BFD for ; Thu, 9 Nov 2017 13:13:36 +0100 (CET) Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 3yXhs96FyJz10JV for ; Thu, 9 Nov 2017 13:13:33 +0100 (CET) Message-ID: <5A04466C.5010207@posteo.de> Date: Thu, 09 Nov 2017 13:13:32 +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: <15f68ccfd03-c09-1dcf0@webjas-vaa134.srv.aolmail.net> <40168a26-8991-6998-e541-585a8575ad32@abelian.org> <59FDE6BD.5050606@posteo.de> <59FDEDE9.2090908@posteo.de> <1de81fc5-1f20-4dff-be22-77ef12ef5b21@abelian.org> In-Reply-To: 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: Again congrats to your new longest message over that path! On a quiet night (or maybe two) it should be possible to transfer 1 character from Joe to me i think. Joe, do we want to try that? I would not transmit during that night then. [...] 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 X-Scan-Signature: c0336009bd9bab526ca27d297ea7579a Subject: Re: VLF: VO1NA in Todmorden on 8270 Hz - also in Amberg? Content-Type: text/plain; charset=UTF-8; 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 Again congrats to your new longest message over that path! On a quiet night (or maybe two) it should be possible to transfer 1 character from Joe to me i think. Joe, do we want to try that? I would not transmit during that night then. Paul, did you copy my message from last night and the night before? I am getting no decode at RC4HAA, even when stacking both nights. 73, Stefan Am 09.11.2017 12:34, schrieb Paul Nicholson: > > > cat msg7 | > > ebnaut -et -N8 -k20 -p16K21A | > > sudo ebkey -S21 -m rp,gpio=23 -T '20171106 2200' > > Decoded 'EINSTEIN' from the overnight 8th/9th transmission. > > Eb/N0 = -0.5 dB, constant reference phase, BER 41.1 % > > Symbol error map http://abelian.org/vlf/tmp/171109a.gif > > Night Eb/N0 Phase S/N > 6/7th -20.0 dB < -48 dB in 1Hz > 7/8th -3.7 dB 97.6 -31.79 dB in 1Hz (E+H) > 8/9th -0.5 dB 128.8 -28.63 dB in 1Hz (E+H) > > 8/9th -3.2 dB 131.1 H-field only > 8/9th -2.3 dB 126.7 E-field only > > Nothing at all from the 1st night and clearly something > broke during the 2nd night. > > After a full phase search I got a slight improvement to -0.4 dB > with phase pattern -150,-150,180,180, which means the signal > phase is lagging a little (on average) after about 02:00. > > This decode is about at the limit for the transmitter power and > message duration. Looking at the error map, we might be able to > use a longer message but will probably only manage 9 chars max. > > -- > Paul Nicholson > -- >