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 vBM9wgS6003145 for ; Fri, 22 Dec 2017 10:58:44 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1eSK2V-0007Ci-Dn for rs_out_1@blacksheep.org; Fri, 22 Dec 2017 09:54:51 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1eSK2U-0007CZ-Vn for rsgb_lf_group@blacksheep.org; Fri, 22 Dec 2017 09:54:50 +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 1eSK2S-0004iD-Ay for rsgb_lf_group@blacksheep.org; Fri, 22 Dec 2017 09:54:49 +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=POqjGbMbG8WjGNexZmYQmEgcBJgDYKwVZdJ8GRvLWFw=; b=GXjehO0dkonezdxMlGmDMInD77 b3ptMvOYZBuUBiLRWMc+ufgvnUQldaDkoYNQ04iDbSFQxRzEXDpboDe8GyrI5jcO5Q4xo4UQM2xwK nQ6XoswwIb7FjYooGPrTyqStfobt4f3JdRDWtjJMwA5X5I+8wVdZt7fPdYzf8j3k0sxA=; Received: from i-194-106-52-83.freedom2surf.net ([194.106.52.83]:51477 helo=pn.abelian.org) by porthos.netcom.co.uk with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89_1) (envelope-from ) id 1eSK2R-00056i-Sl for rsgb_lf_group@blacksheep.org; Fri, 22 Dec 2017 09:54:47 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) by pn.abelian.org (Postfix) with ESMTP id 3F13E400215 for ; Fri, 22 Dec 2017 09:54:47 +0000 (UTC) From: Paul Nicholson To: rsgb_lf_group@blacksheep.org References: <2dbcd2a8-0109-41e4-c0ca-aada17f54de8@abelian.org> <5A2D886D.5060109@posteo.de> <5A31249C.2040307@posteo.de> <5A326AAE.7020808@posteo.de> <6b23a798-f28e-828c-bd8a-43ba8af0fb6a@abelian.org> <346e5dfe-da5f-79e9-c097-e3012a3b74bd@abelian.org> <5A344E83.3020308@posteo.de> <5A37BB18.4090806@posteo.de> <79b53aa1-0fa7-d02c-34bf-5b2e3b7bdddb@abelian.org> <5A381F2B.7000304@posteo.de> <3871624a-11dc-12b8-853c-8454840ca9ff@abelian.org> <5A398786.7000001@posteo.de> <5A398906.9000806@posteo.de> <6833b8ea-5cf8-809e-364e-a9f47e04bc44@abelian.org> <2572ce8a-49f7-fedb-98d3-6b3147b0d3eb@abelian.org> Message-ID: Date: Fri, 22 Dec 2017 09:54:47 +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: <2572ce8a-49f7-fedb-98d3-6b3147b0d3eb@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. 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Content preview: On my VLF stream server I'm using the following pipeline to extract Joe's signal and mix down to baseband I/Q: vtread -T2017-12-21_21:00,+32700 /raw1/vlf38 | vtfilter -h bp,f=8270,w=3000 | vtblank -a12 -d0 -t100 -v | vtmult -f 8270.0075 | vtresample -r 240 | vtresample -r1 > vo1na-21w.vt [...] 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: 0a4643e586472c13187d293ec5d096c2 Subject: Re: LF: VLF NA Ebnaut 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 On my VLF stream server I'm using the following pipeline to extract Joe's signal and mix down to baseband I/Q: vtread -T2017-12-21_21:00,+32700 /raw1/vlf38 | vtfilter -h bp,f=8270,w=3000 | vtblank -a12 -d0 -t100 -v | vtmult -f 8270.0075 | vtresample -r 240 | vtresample -r1 > vo1na-21w.vt and then decode with vtraw -oa vo1na-21w.vt | ebnaut -dp16K21A -r1 -S60 -k8 -PS -L500 -N1 -v to give Eb/N0 +1.0 dB at rank 5, S/N -36.58 dB in 1Hz. This signal has been through a stage of vorbis compression as it was uploaded in real time to the stream server. I wonder what Eb/N0 and S/N is obtained when Jacek runs the extract from his local raw storage? -- Paul Nicholson --