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 v8TBmGdO028231 for ; Fri, 29 Sep 2017 13:48:17 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1dxtgD-0000mW-S1 for rs_out_1@blacksheep.org; Fri, 29 Sep 2017 12:42:05 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1dxtgD-0000mN-5v for rsgb_lf_group@blacksheep.org; Fri, 29 Sep 2017 12:42:05 +0100 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 1dxtg9-00050U-CO for rsgb_lf_group@blacksheep.org; Fri, 29 Sep 2017 12:42:03 +0100 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:From:References:To:Subject:Sender:Reply-To: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=tTpwxp9OShbKP1rP0s0d18j0vbbWCxMkE45CPflHtgc=; b=JcwlQZxrLZ5eAQDtZp0UTRFd/8 1Dp8V4i5MGwcbPtSpfJgIZfIAtf0Gb7IJyFNv5akzPlUTewAwcBPTnkIA4ac0bhtgay3mIaVyS99t aykWoPcRXKwGe/IjDMbQt/FIrnDFzESVy6dARDexhJZZExtraxNSedhhZppepOKZH1pQ=; Received: from i-194-106-52-83.freedom2surf.net ([194.106.52.83]:43843 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 1dxtg7-0002kE-JZ for rsgb_lf_group@blacksheep.org; Fri, 29 Sep 2017 12:41:59 +0100 Received: from [127.0.0.1] (localhost [127.0.0.1]) by pn.abelian.org (Postfix) with ESMTP id F40CD4000C2 for ; Fri, 29 Sep 2017 11:41:58 +0000 (UTC) To: rsgb_lf_group@blacksheep.org References: <15ec7c794b3-bff-66@webjas-vac136.srv.aolmail.net> <59CD5C56.7000103@posteo.de> From: Paul Nicholson Message-ID: Date: Fri, 29 Sep 2017 11:41:58 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.5.1 MIME-Version: 1.0 In-Reply-To: <59CD5C56.7000103@posteo.de> 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: I used Alpha signals to get a rough calibration of the E-field rx and I retrospectively apply this to the recent recordings. Below are the daily results already reported for the 16K21A 12 char message just using H-field: [...] 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: c0336009bd9bab526ca27d297ea7579a Subject: Re: VLF: 300 mA on 8270 Hz 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 I used Alpha signals to get a rough calibration of the E-field rx and I retrospectively apply this to the recent recordings. Below are the daily results already reported for the 16K21A 12 char message just using H-field: 2017-09-22: +0.4 dB phase 126.0 list rank 8225; 2017-09-23: +1.6 dB phase 131.0 list rank 0; 2017-09-24: +0.3 dB phase 134.0 list rank 242; 2017-09-25: +2.2 dB phase 127.2 list rank 0; 2017-09-26: +1.2 dB phase 132.8 list rank 0; Stacking gives Eb/N0 = +7.7 dB. Now with E-field as well: 2017-09-22: +3.7 dB phase 134.9 list rank 0; 2017-09-23: +5.4 dB phase 139.8 list rank 0; 2017-09-24: +1.1 dB phase 135.9 list rank 0; 2017-09-25: +4.9 dB phase 133.9 list rank 0; 2017-09-26: +2.8 dB phase 139.1 list rank 0; and stacking the five days is 10.7 dB. By adding in the E-field, the antenna pattern is changed from a figure-8 to a cardiod. We might expect to gain 3dB, or more if a lot of the background noise is coming off the back of the beam. Some days, not so much improvement, depends where the noise is coming from. But generally, you can see that it is well worth the effort of 3-axis reception. Looks like I haven't got the E-field phase calibrated quite right, calibrated at 11904 Hz, there will be some few degrees phase shift at 8270 Hz. This afternoon I will try the 100 char message with 2 repeats so far... -- Paul Nicholson --