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 vBE8NdN5005048 for ; Thu, 14 Dec 2017 09:23:42 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1ePOas-0006lE-On for rs_out_1@blacksheep.org; Thu, 14 Dec 2017 08:10:14 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1ePOap-0006l5-Fx for rsgb_lf_group@blacksheep.org; Thu, 14 Dec 2017 08:10:11 +0000 Received: from porthos.netcom.co.uk ([217.72.171.73]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1ePOam-000275-BO for rsgb_lf_group@blacksheep.org; Thu, 14 Dec 2017 08:10:09 +0000 X-DKIM-Result: Domain=abelian.org Result=Signature OK DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=abelian.org ; s=default; h=Content-Transfer-Encoding:Content-Type:In-Reply-To: MIME-Version:Date:Message-ID:References:Reply-To:To:From:Subject:Sender:Cc: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=KrK3XD4SRDInDv0sFYmDSoPvSczxQfkbDLrzp/XQXY8=; b=8YJygCxFRHwIqtC3PjBnfFKHxV E5YPFeUpMJY8/JPcYJNAPi8wdUqRblECsDBnpqcuuN4l/rCAhRkS5BieAJ1nBtVg1sGjUhOd5mBZX iFGQC9Iarz1KLk9IN5RQyi1MKDUECWLvJKYuP5t6f7i8Ej++riSemNNAZL8hmJM7jwJc=; Received: from i-194-106-52-83.freedom2surf.net ([194.106.52.83]:46745 helo=pn.abelian.org) by porthos.netcom.co.uk with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1ePOak-00088E-Cu for rsgb_lf_group@blacksheep.org; Thu, 14 Dec 2017 08:10:06 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) by pn.abelian.org (Postfix) with ESMTP id A9F814000C1 for ; Thu, 14 Dec 2017 08:10:05 +0000 (UTC) From: Paul Nicholson To: rsgb_lf_group@blacksheep.org References: <0a09eb43-a5de-4b08-b08b-af990540399b@abelian.org> Message-ID: <41a4456f-6580-360e-2912-629920ec91a8@abelian.org> Date: Thu, 14 Dec 2017 08:10:05 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.3.0 MIME-Version: 1.0 In-Reply-To: <0a09eb43-a5de-4b08-b08b-af990540399b@abelian.org> Content-Language: en-US X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - porthos.netcom.co.uk X-AntiAbuse: Original Domain - blacksheep.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - abelian.org X-Get-Message-Sender-Via: porthos.netcom.co.uk: authenticated_id: catchall@abelian.org X-Authenticated-Sender: porthos.netcom.co.uk: catchall@abelian.org 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: Riccardo wrote: > f = 8270.00332 Hz > Start time: 21:30:00 UTC > Symbol period: 30 s > Characters: 3 > CRC bits: 24 > Coding 16K21A Copied an obviously correct message in Todmorden, UK. [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: 1c38f63d01970a2bf149f660c9cb2a37 Subject: Re: LF: EbNaut test at 8270.00332 from JN64bw 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=0.9 required=5.0 tests=FROM_ENDS_IN_NUMS 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 Riccardo wrote: > f = 8270.00332 Hz > Start time: 21:30:00 UTC > Symbol period: 30 s > Characters: 3 > CRC bits: 24 > Coding 16K21A Copied an obviously correct message in Todmorden, UK. Eb/N0 = +1.8 dB, symbol error rate 40.5%, S/N -30.6 dB in 1Hz. Rank 150 in the list decoder output. Constant reference phase (meaning the frequency is correct and the path was stable). Symbol timing is correct: Eb/N0 peaks at timing offset zero. Noise was a little higher last night compared to the previous night, so S/N is a bit less than expected. No decodes via the on-line natural radio streams, but some Eb/N0 measurements by cross-correlation: Bielefeld (DL4YHF) 845.3 km: Eb/N0 = -9.5 dB, -42dB in 1Hz; There was a one sample negative timing break in the Bielefeld recording, about half way through. These cannot be corrected for, so the phase may have stepped by about 90 deg at the timing break and lost a few dB. Cumiana (IK1QFK) 370.5 km: Eb/N0 = -5.2 dB, -37.6 dB in 1Hz; I expected a better result than that from Cumiana. Four timing breaks, but forward steps - easy to pad over; Warsaw (SQ5BPF) 1035.0 km: Eb/N0 = -15.4 dB dB, -47.85 dB in 1Hz; This was a long shot but worth a look; -- Paul Nicholson --