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 vAAGJm1L023864 for ; Fri, 10 Nov 2017 17:19:49 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1eDBoq-00034I-Lk for rs_out_1@blacksheep.org; Fri, 10 Nov 2017 16:06:12 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1eDBop-000349-Ls for rsgb_lf_group@blacksheep.org; Fri, 10 Nov 2017 16:06:11 +0000 Received: from omr-m005e.mx.aol.com ([204.29.186.5]) by relay1.thorcom.net with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.89) (envelope-from ) id 1eDBom-0004AH-9H for rsgb_lf_group@blacksheep.org; Fri, 10 Nov 2017 16:06:10 +0000 Received: from mtaomg-aac02.mx.aol.com (mtaomg-aac02.mx.aol.com [172.27.2.36]) by omr-m005e.mx.aol.com (Outbound Mail Relay) with ESMTP id A5992380018D for ; Fri, 10 Nov 2017 11:06:04 -0500 (EST) Received: from core-acc05b.mail.aol.com (core-acc05.mail.aol.com [172.26.125.15]) by mtaomg-aac02.mx.aol.com (OMAG/Core Interface) with ESMTP id A41AA38000085 for ; Fri, 10 Nov 2017 11:06:03 -0500 (EST) Received: from 188.192.44.165 by webjas-vaa024.srv.aolmail.net (10.96.33.27) with HTTP (WebMailUI); Fri, 10 Nov 2017 11:06:02 -0500 Date: Fri, 10 Nov 2017 11:06:03 -0500 From: Markus Vester To: rsgb_lf_group@blacksheep.org Message-Id: <15fa6ae4fa0-c0b-e7b7@webjas-vaa024.srv.aolmail.net> In-Reply-To: <5A048F2E.1080305@posteo.de> MIME-Version: 1.0 X-MB-Message-Source: WebUI X-MB-Message-Type: User X-Mailer: JAS STD X-Originating-IP: [188.192.44.165] x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20150623; t=1510329964; bh=s7MWZzakkaQmwfoeGiQ2L/PthvGNG+xkeUWHsxkgLdI=; h=From:To:Subject:Message-Id:Date:MIME-Version:Content-Type; b=ge0XukSKWMvCGwM2+GcQksjf8Z+PDSQ59Mp5mXOp/+4uFaZCAjzlv9NL1faDaZooq xg+YKROyWRt33ZpTWBX+5yjE4lTcOZYwQvANm7JACBKgMw3Pe71zejBQ+D5tN7+NdF MQXOxDyudR4Ao428rT9RpC65JlWMA5vbNkAseqKM= x-aol-sid: 3039ac1b02245a05ce6b29cf 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: Hi Stefan, your recent messages were also successfully decoded at DF6NM (E-field) and DL0AO (west cardioid): date msg df6nm dl0ao Nov. dB dB 5-6 R 13.2 12.0 6-7 73 10.4 9.4 7-8 xxx 1.6 7.5 8-9 xxx 10.9 7.4 9-10 xx 11.9 8.1 [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (markusvester[at]aol.com) -0.0 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: 611f9af8a0f6ba007b1ec6dce409caf4 Subject: Re: R: Re: VLF: EbNaut message over 2877 km, DK7FC to RC4HAA Content-Type: multipart/alternative; boundary="----=_Part_78937_1872177497.1510329962400" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.5 required=5.0 tests=HTML_20_30,HTML_MESSAGE 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 ------=_Part_78937_1872177497.1510329962400 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi Stefan, your recent messages were also successfully decoded at DF6NM (E-field) and = DL0AO (west cardioid): date msg df6nm dl0ao Nov. dB dB 5-6 R 13.2 12.0 6-7 73 10.4 9.4 7-8 xxx 1.6 7.5 8-9 xxx 10.9 7.4 9-10 xx 11.9 8.1 Note that these carrier Eb/N0 results are probably 1.5 dB too low, due to o= ur short 8.9 hour recordings. Today I have changed the FFT resolution on ou= r grabbers from 31.4 to 20.93 uHz, so that SpecLab data exports will now be= covering up to 13.23 hours.=20 Best 73, Markus (DF6NM) -----Urspr=C3=BCngliche Mitteilung-----=20 Von: DK7FC An: rsgb_lf_group Verschickt: Do, 9. Nov 2017 18:36 Betreff: Re: R: Re: VLF: EbNaut message over 2877 km, DK7FC to RC4HAA Thanks Paul, good to see. I tried various time and frequency offsets for the wav file from last nigh= t and for the stacked file from the last two nights. No result. Now i started two SpecLab instances on the RX site, one is using PPS+NTP, = the other one DHO38. During the transmision time, DHO38 has a good strength= and no terminator is passing, so maybe it will give better results, at lea= st it will be interesting to compare. Since i want to avoid false decodes, i changed the parameters and will try= 2 characters again. Tonite: f =3D 8270.1000 Hz Start time: 09.November.2017 16:00:00 UTC Symbol period: 60 s Characters: 2 CRC bits: 15 Coding 16K21A Duration: 12:32=20 Antenna current: 620 mA 73, Stefan Am 09.11.2017 17:23, schrieb Paul Nicholson:=20 Stefan wrote:=20 > f =3D 8270.1000 Hz=20 > Start time: 07.November.2017 16:00:00 UTC=20 > Symbol period: 60 s=20 > Characters: 3=20 > CRC bits: 9=20 > Coding 16K21A=20 > Duration: 12:32=20 > Paul, did you copy my message from last night and the night=20 > before?=20 Yes, a strong signal here and perfect decode of the 3 chars:=20 H-field E-field E+H field=20 7th/8th 10.5 dB 99.8 deg 9.0 dB 107.3 deg 12.5 dB 103.3 deg=20 8th/9th 14.1 dB 88.3 deg 12.5 dB 93.8 deg 17.3 dB 90.9 deg=20 > I am getting no decode at RC4HAA, even when stacking both nights.=20 Signal phase repeated fine both nights. Given the S/N of your 2 char=20 success, you would be very lucky to do 3 chars in one night, but two=20 nights ought to do it.=20 --=20 Paul Nicholson=20 -- ------=_Part_78937_1872177497.1510329962400 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
Hi Stefan,
your recent messages wer= e also successfully decoded at DF6NM (E-field) and DL0AO (west cardioid):

date msg df6nm dl0ao
Nov.   &nbs= p;       dB     dB
5-6=      R    13.2  12.0
6-7 &n= bsp;  73    10.4   9.4
7-8  &nbs= p; xxx    1.6    7.5
8-9   = xxx  10.9    7.4
9-10   xx   11.9&nb= sp;   8.1

Note that these carrier Eb/N0 resu= lts are probably 1.5 dB too low, due to our short 8.9 hour recordings. Toda= y I have changed the FFT resolution on our grabbers from 31.4 to 20.93 uHz,= so that SpecLab data exports will now be covering up to 13.23 hours.

Best 73,
Markus (DF6NM)



-----Urspr=C3=BC= ngliche Mitteilung-----
Von: DK7FC <selberdenken@posteo.de>
An= : rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: Do, 9. = Nov 2017 18:36
Betreff: Re: R: Re: VLF: EbNaut message over 2877 km, DK7= FC to RC4HAA

Thanks Paul, good to see.
I tried various time and frequency offsets for the wav file from last night and for the stacked file from the last two nights. No result.
Now i started two SpecLab instances on the RX site, one is using PPS+NTP, the other one DHO38. During the transmision time, DHO38 has a good strength and no terminator is passing, so maybe it will give better results, at least it will be interesting to compare.
Since i want to avoid false decodes, i changed the parameters and will try 2 characters again. Tonite:

f =3D 8270.1000 Hz
Start time: 09.November.2017  16:00:00 UTC
Symbol period: 60 s
Characters: 2
CRC bits: 15
Coding 16K21A
Duration: 12:32
Antenna current: 620 mA

73, Stefan


Am 09.11.2017 17:23, schrieb Paul Nicholson:

Stefan wrote:

> f =3D 8270.1000 Hz
> Start time: 07.November.2017  16:00:00 UTC
> Symbol period: 60 s
> Characters: 3
> CRC bits: 9
> Coding 16K21A
> Duration: 12:32

> Paul, did you copy my message from last night and the night
> before?

Yes, a strong signal here and perfect decode of the 3 chars:

            H-field&= nbsp;          E-field &n= bsp;           E+H field
 7th/8th  10.5 dB 99.8 deg   9.0 dB 107.3 deg &nbs= p; 12.5 dB 103.3 deg
 8th/9th  14.1 dB 88.3 deg  12.5 dB  93.8 deg &nbs= p; 17.3 dB  90.9 deg

> I am getting no decode at RC4HAA, even when stacking both nights.

Signal phase repeated fine both nights.  Given the S/N of your 2 char
success, you would be very lucky to do 3 chars in one night, but two
nights ought to do it.

--
Paul Nicholson
--

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