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 w05GZTkS009494 for ; Fri, 5 Jan 2018 17:35:30 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1eXUs2-0001GX-M8 for rs_out_1@blacksheep.org; Fri, 05 Jan 2018 16:29:26 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1eXUs1-0001GO-Uu for rsgb_lf_group@blacksheep.org; Fri, 05 Jan 2018 16:29:25 +0000 Received: from mout01.posteo.de ([185.67.36.65]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1eXUry-0007dc-SI for rsgb_lf_group@blacksheep.org; Fri, 05 Jan 2018 16:29:24 +0000 Received: from submission (posteo.de [89.146.220.130]) by mout01.posteo.de (Postfix) with ESMTPS id CEC6C21083 for ; Fri, 5 Jan 2018 17:29:19 +0100 (CET) X-DKIM-Result: Domain=posteo.de Result=Signature OK DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=posteo.de; s=2017; t=1515169760; bh=oIbl3I273nuXO6+7UI/mq+ELUsVlaXx/aB9A1vAZhSQ=; h=Date:From:To:Subject:From; b=I8i00gfZSqAk6WwR2rhD8t449uetdGOO/0yiIA+HToTNoczXpgid1h+RVOV8ZwHez R9hAUxpRGhK6Qxk9nyNoOOGbIkVH9DTAbQCzqTlqGSdihHylkXD4yP5odv0QSQgmeR FmEMK3xDEV4HKPbtuQdcb3RNk4V2uOgY3Y7bqDT75xRmVk2mlAb2qYQbvg7n4Ry4dz Zd95OkEg5ff1llt7Pwiga9+KPWxNj6RMiCltxNFyTEHc0gH8Ra08vOOAlH0EmRo5tC OGGWeHsudZWDFuii6Oc7MIxDkIdu9H6xbL6qrmj2m7wUUx1hhppJ4G7C8y6tXzI+Td OEo9mc+GySO2A== Received: from customer (localhost [127.0.0.1]) by submission (posteo.de) with ESMTPSA id 3zCqqz0vHpz9rxG for ; Fri, 5 Jan 2018 17:29:19 +0100 (CET) Message-ID: <5A4FA7DE.1080003@posteo.de> Date: Fri, 05 Jan 2018 17:29:18 +0100 From: DK7FC User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org References: <160c3e31cb4-1722-34ab8@webjas-vab221.srv.aolmail.net> In-Reply-To: <160c3e31cb4-1722-34ab8@webjas-vab221.srv.aolmail.net> 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: Hello Markus, DL0AO, Joe, Dex, VLF, Very well! My congrats to that successful first TA decode from DL0AO. Also congrats to Joe for the new land path record distance recently. It all seems to be a question of available RX stations. Looks like i missed a lot in the last days. [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 T_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: 3f12a6171cff302119f724e64afab799 Subject: Re: VLF: TA decodes from W4DEX and VO1NA in Amberg Content-Type: multipart/alternative; boundary="------------030002040908020001080602" 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 This is a multi-part message in MIME format. --------------030002040908020001080602 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Hello Markus, DL0AO, Joe, Dex, VLF, Very well! My congrats to that successful first TA decode from DL0AO. Also congrats to Joe for the new land path record distance recently. It all seems to be a question of available RX stations. Looks like i missed a lot in the last days. 73, Stefan Am 05.01.2018 02:15, schrieb Markus Vester: > During the last week, transmissions from Dex W4DEX and Joe VO1NA have > been successfully decoded from the DL0AO cardioid antenna. > > The three-character message from W4DEX was copied after stacking the > six available nights, using transmit phase corrections published by > Paul. A unique decode at rank 3867, Eb/N0 -2.6 dB was already achieved > using equal magnitude (phase only) weights. It was improved further to > rank 829, Eb/N0 -1.9 dB by using the same phases with approximate > inverse-noise-power weights, as shown in the table below. No local > correlations were used to derive the weights. The strong CRC > apparently helped to prevent false decodes even at marginal SNR. > Comparing the result to the previous decode from Jay W1VD has > confirmed that our received message is indeed correct. > > W4DEX - DL0AO 8269.9 Hz > 2017-12-27 to 2018-01-03 > > night weight > dB deg > 27/28 -6 0 > 28/29 -10 118 > 29/30 -8 236 > 30/31 -4 260 > 31/01 -14 103 > 02/03 -10 245 > > After having received VO1NA's previous "S", the next one-character > message was again decoded successfully from two single nights. > Stacking seven nights with equal gain and phase then produced a very > robust rank 0 decode. The result has been confirmed by Joe. > > VO1NA - DL0AO 8270.0075 Hz > 2017-12-28 to 2018-01-04 > > night EbN0 rank decode > dB > 28/29 0.5 5 correct > 29/30 0.1 28 correct > 30/31 -0.3 48 false > 31/01 -0.3 49 false > 01/02 -0.1 10 false > 02/03 -0.5 27 false > 03/04 -0.4 18 false > sum 2.4 0 correct > > Guess that wasn't a bad start into 2018... many thanks again to all > contributors! > > Best 73, > Markus (DF6NM) > > > > -----Ursprüngliche Mitteilung----- > Von: Markus Vester > An: rsgb_lf_group > Verschickt: Do, 28. Dez 2017 17:50 > Betreff: Re: LF: Re[2]: LF: VLF NA Ebnaut > > Big CONGRATULATIONS to Alex and Joe! > > I'm glad to announce that the one-character EbNaut transmission from > VO1NA has also been decoded from the cardioid antenna at DL0AO (near > Amberg, JN59VK). The correct decode "S" first prevailed in a > single-night recording from Dec 23/24, and finally became absolutely > unambiguous after stacking four out of seven nights with equal gain > and phase. > > Correlations for single nights: > Eb/N0 phase night > dB deg Dec 2017 > > -5.5 -54.3 21/22 > -4.8 -8.5 22/23 > -0.5 -6.5 23/24 (decoded "S") > -20.6 150.3 24/25 (only noise) > -10.7 32.1 25/26 (only noise) > -2.5 -26.5 26/27 > -4.4 10.8 27/28 > > Two nights stacked: > +0.6 -7.3 22/23 + 23/24 > -0.8 -9.5 26/27 + 27/28 > > Four nights stacked: > +2.8 -8.4 22/23 + 23/24 + 26/27 + 27/28 > > Thanks to Joe for sending consistent repeats, to Bernd and Tom for > setting up the VLF receivers at DL0AO, and of course to Paul and Wolf > for making all this possible in the first place. > > Best 73, > Markus > ... --------------030002040908020001080602 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 8bit Hello Markus, DL0AO, Joe, Dex, VLF,

Very well! My congrats to that successful first TA decode from DL0AO.
Also congrats to Joe for the new land path record distance recently. It all seems to be a question of available RX stations.
Looks like i missed a lot in the last days.

73, Stefan

Am 05.01.2018 02:15, schrieb Markus Vester:
During the last week, transmissions from Dex W4DEX and Joe VO1NA have been successfully decoded from the DL0AO cardioid antenna.

The three-character message from W4DEX was copied after stacking the six available nights, using transmit phase corrections published by Paul. A unique decode at rank 3867, Eb/N0 -2.6 dB was already achieved using equal magnitude (phase only) weights. It was improved further to rank 829, Eb/N0 -1.9 dB by using the same phases with approximate inverse-noise-power weights, as shown in the table below. No local correlations were used to derive the weights. The strong CRC apparently helped to prevent false decodes even at marginal SNR. Comparing the result to the previous decode from Jay W1VD has confirmed that our received message is indeed correct.

W4DEX - DL0AO 8269.9 Hz
2017-12-27 to 2018-01-03

night    weight
           dB  deg
27/28   -6    0
28/29 -10  118
29/30   -8  236
30/31   -4  260
31/01 -14  103
02/03 -10  245

After having received VO1NA's previous "S", the next one-character message was again decoded successfully from two single nights. Stacking seven nights with equal gain and phase then produced a very robust rank 0 decode. The result has been confirmed by Joe.

VO1NA - DL0AO 8270.0075 Hz
2017-12-28 to 2018-01-04

night EbN0 rank decode
           dB
28/29  0.5    5   correct
29/30  0.1  28   correct
30/31 -0.3  48   false
31/01 -0.3  49   false
01/02 -0.1  10   false
02/03 -0.5  27   false
03/04 -0.4  18   false
sum    2.4    0   correct

Guess that wasn't a bad start into 2018... many thanks again to all contributors!

Best 73,
Markus (DF6NM)



-----Ursprüngliche Mitteilung-----
Von: Markus Vester <markusvester@aol.com>
An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
Verschickt: Do, 28. Dez 2017 17:50
Betreff: Re: LF: Re[2]: LF: VLF NA Ebnaut

Big CONGRATULATIONS to Alex and Joe!

I'm glad to announce that the one-character EbNaut transmission from VO1NA has also been decoded from the cardioid antenna at DL0AO (near Amberg, JN59VK). The correct decode "S" first prevailed in a single-night recording from Dec 23/24, and finally became absolutely unambiguous after stacking four out of seven nights with equal gain and phase.

Correlations for single nights:
 Eb/N0 phase night
  dB   deg   Dec 2017

 -5.5 -54.3  21/22
 -4.8  -8.5   22/23
 -0.5  -6.5   23/24  (decoded "S")
-20.6 150.3  24/25 (only noise)
-10.7  32.1   25/26 (only noise)
 -2.5 -26.5   26/27
 -4.4  10.8   27/28

Two nights stacked:
 +0.6  -7.3  22/23 + 23/24
 -0.8   -9.5  26/27 + 27/28

Four nights stacked:
 +2.8  -8.4  22/23 + 23/24 + 26/27 + 27/28

Thanks to Joe for sending consistent repeats, to Bernd and Tom for setting up the VLF receivers at DL0AO, and of course to Paul and Wolf for making all this possible in the first place.

Best 73,
Markus
...
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