Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=5.0 tests=FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,HTML_MESSAGE,RCVD_IN_DNSWL_MED, SPF_PASS,T_DKIM_INVALID autolearn=ham autolearn_force=no version=3.4.0 X-Spam-DCC: EATSERVER: mailn 1166; Body=2 Fuz1=2 Fuz2=2 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by lipkowski.org (8.14.4/8.14.4/Debian-8+deb8u1) with ESMTP id v1PBiWEB004675 for ; Sat, 25 Feb 2017 12:44:33 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1chaj6-0006YR-Ig for rs_out_1@blacksheep.org; Sat, 25 Feb 2017 11:41:24 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1chaj6-0006YI-5U for rsgb_lf_group@blacksheep.org; Sat, 25 Feb 2017 11:41:24 +0000 Received: from omr-a010e.mx.aol.com ([204.29.186.54]) by relay1.thorcom.net with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.87) (envelope-from ) id 1chaj3-0000tW-BC for rsgb_lf_group@blacksheep.org; Sat, 25 Feb 2017 11:41:23 +0000 Received: from mtaomg-aaj02.mx.aol.com (mtaomg-aaj02.mx.aol.com [172.27.3.208]) by omr-a010e.mx.aol.com (Outbound Mail Relay) with ESMTP id 181FC380008D for ; Sat, 25 Feb 2017 06:41:19 -0500 (EST) Received: from core-acx08h.mail.aol.com (core-acx08.mail.aol.com [172.27.155.133]) by mtaomg-aaj02.mx.aol.com (OMAG/Core Interface) with ESMTP id 036CB38000083 for ; Sat, 25 Feb 2017 06:41:14 -0500 (EST) Received: from 188.192.95.60 by webprd-a81.mail.aol.com (10.72.112.246) with HTTP (WebMailUI); Sat, 25 Feb 2017 06:41:13 -0500 Date: Sat, 25 Feb 2017 06:41:13 -0500 From: Markus Vester To: rsgb_lf_group@blacksheep.org Message-Id: <15a751326df-3974-d81a@webprd-a81.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] DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20150623; t=1488022879; bh=v+XIF/v+bVrRiFI7qq6cLdpwwq59/fbFZ4x236W9SGw=; h=From:To:Subject:Message-Id:Date:MIME-Version:Content-Type; b=IGc8kAq6zn51bVjGwnYli1u2VhbTKA61hGYji5sEzdIpTKebsrgBHzw0IG0A67jLI YRca/kVM9X6BQf+OmwhOnE1a1yokU/wcx9E/GkrRwMiWAtxeq9r2VuAbm9bgNxcyqD AOYFdjuQUupWtyPYzhdYm0jcgJAAsFrTf75Mepuo= x-aol-sid: 3039ac1b03d058b16d5a13ba X-Scan-Signature: 24b65a258fa7a3a87cfdaa03bb2f3176 Subject: Re: VLF: EbNaut also on 8270.033333 Hz Content-Type: multipart/alternative; boundary="----=_Part_68948_266715750.1488022873821" 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 2.75 Status: RO X-Status: X-Keywords: X-UID: 10706 ------=_Part_68948_266715750.1488022873821 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Fine Eddie, confirming the decode you sent off list is correct (not "YY" of= course). Your last finding was even slightly better: found YY list rank 5124 reference phase 120 150 120 150 carrier RMS 1.897e-005 noise RMS 5.713e-006 carrier S/N 10.43 dB in 43.4 uHz carrier Es/N0 -15.42 dB carrier Eb/N0 -0.14 dB info bit period 2021.05 seconds symbol error rate 167/384 =3D 43.490 % Es/N0 from symbol errors -18.7 dB Eb/N0 from symbol errors -3.4 dB Shannon capacity 2.5 bits/hour Shannon efficiency 72.7 % symbols file C:\Comms\EbNaut\25_FEB_0035_8270-symbols.csv elapsed 82 seconds There's still an unexplained difference between Eb/N0 from carrier SNR (-0.= 14 dB) and from symbol errorrate (-3.4 dB, seems too low). Perhaps there w= as still an error in my TX timing, or possibly interference from the strong= er DK7FC signal with non-orthogonal symbol duration.=20 Best 73, Markus -----Urspr=C3=BCngliche Mitteilung-----=20 Von: g3zjo An: rsgb_lf_group Verschickt: Sa, 25. Feb 2017 10:40 Betreff: Re: VLF: EbNaut also on 8270.033333 Hz Re:- Marcus transmission =20 Correction, silly mistake made first time. found YY list rank 20511 reference phase 150 150 150 150 carrier RMS 1.816e-005 noise RMS 5.713e-006 carrier S/N 10.04 dB in 43.4 uHz carrier Es/N0 -15.80 dB carrier Eb/N0 -0.53 dB info bit period 2021.05 seconds symbol error rate 174/384 =3D 45.313 % Es/N0 from symbol errors -20.0 dB Eb/N0 from symbol errors -4.7 dB Shannon capacity 2.2 bits/hour Shannon efficiency 79.2 % symbols file C:\Comms\EbNaut\25_FEB_0035_8270-symbols.csv elapsed 9 seconds 73 Eddie G3ZJO ------=_Part_68948_266715750.1488022873821 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
Fine Eddie, confirming the decode you sent off list is c= orrect (not "YY" of course). Your last finding was even slightly bette= r:

found YY
list rank 5124
reference phase  12= 0  150  120  150
carrier RMS 1.897e-005 noise RMS 5= .713e-006
carrier S/N 10.43 dB in 43.4 uHz
carrier Es/N0 = -15.42 dB
carrier Eb/N0 -0.14 dB
info bit period 2021.05 = seconds
symbol error rate 167/384 =3D 43.490 %
Es/N0 from= symbol errors -18.7 dB
Eb/N0 from symbol errors -3.4 dB
= Shannon capacity 2.5 bits/hour
Shannon efficiency 72.7 %
= symbols file C:\Comms\EbNaut\25_FEB_0035_8270-symbols.csv
elapsed = 82 seconds

There's still an unexplained difference between Eb/N= 0 from carrier SNR (-0.14 dB) and from symbol errorrate  (-3.4 dB= , seems too low). Perhaps there was still an error in my TX timing, or=  possibly interference from the stronger DK7FC signal with n= on-orthogonal symbol duration. 

Best 73,
Markus

=
-----Urspr=C3=BCngliche Mitteilung-----
Von: g3zjo <g3zjo@psk31.= plus.com>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
V= erschickt: Sa, 25. Feb 2017 10:40
Betreff: Re: VLF: EbNaut also on 8270.= 033333 Hz

Re:- Marcus transmission
   

Correction, silly mistake made first time.


found YY
list rank 20511
reference phase  150  150  150  150
carrier RMS 1.816e-005 noise RMS 5.713e-006
carrier S/N 10.04 dB in 43.4 uHz
carrier Es/N0 -15.80 dB
carrier Eb/N0 -0.53 dB
info bit period 2021.05 seconds
symbol error rate 174/384 =3D 45.313 %
Es/N0 from symbol errors -20.0 dB
Eb/N0 from symbol errors -4.7 dB
Shannon capacity 2.2 bits/hour
Shannon efficiency 79.2 %
symbols file C:\Comms\EbNaut\25_FEB_0035_8270-symbols.csv
elapsed 9 seconds

73 Eddie G3ZJO

=20
------=_Part_68948_266715750.1488022873821--