Return-Path: X-Spam-DCC: paranoid 1102; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.2 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, HTML_50_60,HTML_MESSAGE,SPF_PASS,UNPARSEABLE_RELAY autolearn=no version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id u4HMUcDE006105 for ; Wed, 18 May 2016 00:30:38 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1b2nRy-0007TR-7u for rs_out_1@blacksheep.org; Tue, 17 May 2016 23:26:50 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1b2nRx-0007TE-RO for rsgb_lf_group@blacksheep.org; Tue, 17 May 2016 23:26:49 +0100 Received: from omr-a020e.mx.aol.com ([204.29.186.66]) by relay1.thorcom.net with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.87) (envelope-from ) id 1b2nRv-0007t4-CJ for rsgb_lf_group@blacksheep.org; Tue, 17 May 2016 23:26:48 +0100 Received: from mtaomg-mcb02.mx.aol.com (mtaomg-mcb02.mx.aol.com [172.26.50.176]) by omr-a020e.mx.aol.com (Outbound Mail Relay) with ESMTP id A2EDB380009E for ; Tue, 17 May 2016 18:26:45 -0400 (EDT) Received: from core-ace09c.mail.aol.com (core-ace09.mail.aol.com [172.27.23.9]) by mtaomg-mcb02.mx.aol.com (OMAG/Core Interface) with ESMTP id 6272D38000086 for ; Tue, 17 May 2016 18:26:45 -0400 (EDT) Received: from 188.192.95.60 by webprd-a77.mail.aol.com (10.72.109.37) with HTTP (WebMailUI); Tue, 17 May 2016 18:26:45 -0400 Date: Tue, 17 May 2016 18:26:45 -0400 From: Markus Vester To: rsgb_lf_group@blacksheep.org Message-Id: <154c0d414e2-799f-232cb@webprd-a77.mail.aol.com> In-Reply-To: MIME-Version: 1.0 X-MB-Message-Source: WebUI X-MB-Message-Type: User X-Mailer: JAS STD X-Originating-IP: [188.192.95.60] x-aol-global-disposition: G X-AOL-VSS-INFO: 5800.7501/109868 X-AOL-VSS-CODE: clean DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20150623; t=1463524005; bh=oywSrvSyvfTOKpL34yAWWNN54aXy7zv1wimh/Noh+Wg=; h=From:To:Subject:Message-Id:Date:MIME-Version:Content-Type; b=KOyfra/OPWO8GYrh0TLh+xzoCrKCsCAfAYpjn5dMJQuq1n6l7J9v4cQFTzisxck7E 2vuHsyItMHUhH8ZlOH7lwd/yOVbwPEMb5WRftSCK3vdi48ohO2diI/NPgJuLWsGb6C 1nSsPxDMxSfWM7U91naIhwWyZOAqx0xpd/XpU3iM= x-aol-sid: 3039ac1a32b0573b9aa57490 X-Scan-Signature: 14e68a9cb6dee915a96310ea9bf261c5 Subject: Re: VLF: EbNaut transmission, first try: 8,27kHz Content-Type: multipart/mixed; boundary="----=_Part_186688_373791301.1463524005088" 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 X-Scanned-By: MIMEDefang 2.56 on 10.1.3.11 Status: O X-Status: X-Keywords: X-UID: 8107 ------=_Part_186688_373791301.1463524005088 Content-Type: multipart/alternative; boundary="----=_Part_186687_1219744909.1463524005088" ------=_Part_186687_1219744909.1463524005088 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi Roland, sorry no unambiguous result yet. Playing around with the parameters, I got = "R3" as the "best" decode with up to 0.5 dB Eb/N0, but also "NK", "E>", and= other likely false ones. Your last carrier transmission was relatively strong here, and the EbNaut t= ransmission even seems to have left a visible haze in my "6000" grabber win= dow. So for the next test, I would recommend to use a much shorter sequence= (e.g. 2 char, 20 seconds). Such a short message will easily fit into the m= orning low-QRN period, and greatly reduce the effect of frequency uncertain= ties and the likeliness of soundcard phase glitches. Best 73, Markus -----Urspr=C3=BCngliche Mitteilung-----=20 Von: Roland Bruestle An: Markus Vester ; MW500_rsgp Verschickt: Di, 17 Mai 2016 7:15 am Betreff: Re: EbNaut transmission, first try: 8,27kHz Guten Morgen Markus, sorry Markus, I start again. The frequency synchronization was not switche= d on. new Start time: 17.05.2015 5.30 UTC f: 8270Hz Symbol length: 100s Characters: 2 CRC 16 8K191 viele Gr=C3=BC=C3=9Fe Roland ... ------=_Part_186687_1219744909.1463524005088 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
Hi Roland,

sorry no unambiguous res= ult yet. Playing around with the parameters, I got "R3" as the "best" decod= e with up to 0.5 dB Eb/N0, but also "NK", "E>", and other likely false o= nes.

Your last carrier transmission was relatively str= ong here, and the EbNaut transmission even seems to have left a visible haz= e in my "6000" grabber window. So for the next test, I would recommend to u= se a much shorter sequence (e.g. 2 char, 20 seconds). Such a short message = will easily fit into the morning low-QRN period, and greatly reduce the eff= ect of frequency uncertainties and the likeliness of soundcard phase glitch= es.

Best 73,
Markus


--= ---Urspr=C3=BCngliche Mitteilung-----
Von: Roland Bruestle <r@mbsks.= franken.de>
An: Markus Vester <markusvester@aol.com>; MW500_rsg= p <rsgb_lf_group@blacksheep.org>
Verschickt: Di, 17 Mai 2016 7:15 = am
Betreff: Re: EbNaut transmission, first try: 8,27kHz

Guten Morgen Markus,
sorry Markus, I start again. The frequency synchronization was not switched on.

new Start time:    17.05.2015  5.30 UTC
f:             &nbs= p;          8270Hz
Symbol length:     100s
Characters:          2
CRC 16
8K191

viele Gr=C3=BC=C3=9Fe
Roland

...

   
=20
------=_Part_186687_1219744909.1463524005088-- ------=_Part_186688_373791301.1463524005088 Content-Type: text/plain; charset=us-ascii; name=join1a-log.txt Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=join1a-log.txt ebnaut-rx V0.4d input file join1a.wav sample rate 0.514406 per second rx frequency 8270 file start time 2016-05-17 04:36:58.710 polynomial 8K19A crc size 16 number of chars 2 block size 28 symbol period 100.000 number of symbols 368 list length 20000 start offset 3192.000 freq offset -0.000000 cores 2 skipped 3192.033059 seconds to start initial reference phase -76.4 --------------------------------------------- found R3 list rank 1867 reference phase 0 0 0 0 carrier RMS 9.119e+003 noise RMS 2.044e+003 carrier S/N 12.99 dB in 27.2 uHz carrier Es/N0 -12.67 dB carrier Eb/N0 2.42 dB info bit period 3228.07 seconds symbol error rate 146/368 = 39.674 % Es/N0 from symbol errors -14.6 dB Eb/N0 from symbol errors 0.5 dB Shannon capacity 2.7 bits/hour Shannon efficiency 40.8 % symbols file join1a-symbols.csv elapsed 0 seconds --------------------------------------------- found R3 list rank 2001 reference phase 30 30 0 0 carrier RMS 9.579e+003 noise RMS 2.044e+003 carrier S/N 13.42 dB in 27.2 uHz carrier Es/N0 -12.24 dB carrier Eb/N0 2.85 dB info bit period 3228.07 seconds symbol error rate 149/368 = 40.489 % Es/N0 from symbol errors -15.3 dB Eb/N0 from symbol errors -0.2 dB Shannon capacity 3.0 bits/hour Shannon efficiency 37.1 % symbols file join1a-symbols.csv elapsed 6 seconds --------------------------------------------- found R3 list rank 1786 reference phase 0 30 -30 0 carrier RMS 9.432e+003 noise RMS 2.044e+003 carrier S/N 13.28 dB in 27.2 uHz carrier Es/N0 -12.38 dB carrier Eb/N0 2.71 dB info bit period 3228.07 seconds symbol error rate 148/368 = 40.217 % Es/N0 from symbol errors -15.1 dB Eb/N0 from symbol errors -0.0 dB Shannon capacity 2.9 bits/hour Shannon efficiency 38.2 % symbols file join1a-symbols.csv elapsed 41 seconds ------=_Part_186688_373791301.1463524005088 Content-Type: text/plain; charset=us-ascii; name=join1-log.txt Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=join1-log.txt ebnaut-rx V0.4d input file join1.wav sample rate 0.514406 per second rx frequency 8270 file start time 2016-05-17 04:36:58.710 polynomial 8K19A crc size 16 number of chars 2 block size 28 symbol period 100.000 number of symbols 368 list length 20000 start offset 3182.000 freq offset 0.000000 cores 2 skipped 3182.313104 seconds to start initial reference phase -55.1 --------------------------------------------- found NK list rank 15675 reference phase 30 30 30 30 carrier RMS 8.072e+003 noise RMS 2.044e+003 carrier S/N 11.93 dB in 27.2 uHz carrier Es/N0 -13.73 dB carrier Eb/N0 1.36 dB info bit period 3228.07 seconds symbol error rate 150/368 = 40.761 % Es/N0 from symbol errors -15.6 dB Eb/N0 from symbol errors -0.5 dB Shannon capacity 2.2 bits/hour Shannon efficiency 51.8 % symbols file join1-symbols.csv elapsed 2 seconds --------------------------------------------- found R3 list rank 8320 reference phase -30 -30 -30 -30 carrier RMS 8.419e+003 noise RMS 2.044e+003 carrier S/N 12.30 dB in 27.2 uHz carrier Es/N0 -13.36 dB carrier Eb/N0 1.73 dB info bit period 3228.07 seconds symbol error rate 154/368 = 41.848 % Es/N0 from symbol errors -16.7 dB Eb/N0 from symbol errors -1.6 dB Shannon capacity 2.3 bits/hour Shannon efficiency 47.6 % symbols file join1-symbols.csv elapsed 3 seconds --------------------------------------------- found R3 list rank 17471 reference phase 0 0 -30 -30 carrier RMS 8.446e+003 noise RMS 2.044e+003 carrier S/N 12.32 dB in 27.2 uHz carrier Es/N0 -13.34 dB carrier Eb/N0 1.75 dB info bit period 3228.07 seconds symbol error rate 150/368 = 40.761 % Es/N0 from symbol errors -15.6 dB Eb/N0 from symbol errors -0.5 dB Shannon capacity 2.4 bits/hour Shannon efficiency 47.4 % symbols file join1-symbols.csv elapsed 8 seconds --------------------------------------------- found E> list rank 2802 reference phase -150 180 -150 180 carrier RMS 8.537e+003 noise RMS 2.044e+003 carrier S/N 12.42 dB in 27.2 uHz carrier Es/N0 -13.24 dB carrier Eb/N0 1.85 dB info bit period 3228.07 seconds symbol error rate 157/368 = 42.663 % Es/N0 from symbol errors -17.6 dB Eb/N0 from symbol errors -2.5 dB Shannon capacity 2.4 bits/hour Shannon efficiency 46.4 % symbols file join1-symbols.csv elapsed 18 seconds ------=_Part_186688_373791301.1463524005088--