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 x0HBO6Y1009123 for ; Thu, 17 Jan 2019 12:24:07 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1gk5fF-000597-Vo for rs_out_1@blacksheep.org; Thu, 17 Jan 2019 11:16:49 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1gk5f5-00058y-Ty for rsgb_lf_group@blacksheep.org; Thu, 17 Jan 2019 11:16:39 +0000 Received: from resqmta-ch2-04v.sys.comcast.net ([2001:558:fe21:29:69:252:207:36]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.91) (envelope-from ) id 1gk5f3-0005zF-Sf for rsgb_lf_group@blacksheep.org; Thu, 17 Jan 2019 11:16:38 +0000 Received: from resomta-ch2-09v.sys.comcast.net ([69.252.207.105]) by resqmta-ch2-04v.sys.comcast.net with ESMTP id k5a3gb963fZ3Sk5ezgR2aA; Thu, 17 Jan 2019 11:16:33 +0000 X-DKIM-Result: Domain=comcast.net Result=Signature OK DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=comcast.net; s=q20161114; t=1547723793; bh=DTmAqeK+oJUaXrEfDxReignxN9RWnpC2HOhEPSvhzkA=; h=Received:Received:From:Subject:To:Content-Type:MIME-Version:Date: Message-ID; b=haedtRGnh4CSOiaKbfmnYJYeWi/mgVWhcgxPc0i/ycnAw2cLg0QZib1XJo83N7/l0 5m7VyVpwEaIXVZrNhUY0ckU+A9IWcs/fEjP5FPSceMy5IznDCFPSns1nfykn4M4lqV C1j0+kN/pFY8PlFIf3NrraXgajJQx1yfdA8kOM8Kzb7+ezxynUn6BmSXNAeVz4bK8Y 7fz9QQBpZQMpH+7dE6ABQgJvWSd60bCT03XtnRYeT3Zjxri2uign//nwqtOc943pXS nspR3tiHXySkMcWUdjaQnEA6IQ4tu11PF3qnxc02ZwJgLI7dGiyvA1ESjwgwqhpEtw cnSKvTTdU3gWA== Received: from Optiplex980-PC ([73.4.253.141]) by resomta-ch2-09v.sys.comcast.net with ESMTPSA id k5exgSdkxtOdDk5exgPU9v; Thu, 17 Jan 2019 11:16:33 +0000 X-Xfinity-VAAS: gggruggvucftvghtrhhoucdtuddrgedtledrgeekgddulecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucevohhmtggrshhtqdftvghsihdpqfgfvfenuceurghilhhouhhtmecufedttdenucgonfftqdeuohhunhguqdftfedvucdlhedmnecujfgurhephffuvfgtgghffffkjggfsegrtderredtreejnecuhfhrohhmpedfjhhruhhsghhrohhvvgestghomhgtrghsthdrnhgvthdfuceojhhruhhsghhrohhvvgestghomhgtrghsthdrnhgvtheqnecukfhppeejfedrgedrvdehfedrudegudenucfrrghrrghmpehhvghlohepqfhpthhiphhlvgigleektddqrfevpdhinhgvthepjeefrdegrddvheefrddugedupdhmrghilhhfrhhomhepjhhruhhsghhrohhvvgestghomhgtrghsthdrnhgvthdprhgtphhtthhopehrshhgsggplhhfpghgrhhouhhpsegslhgrtghkshhhvggvphdrohhrghenucevlhhushhtvghrufhiiigvpedt X-Xfinity-VMeta: sc=0;st=legit From: "jrusgrove@comcast.net" To: "rsgb_lf_group@blacksheep.org" MIME-Version: 1.0 References: <1541712573053.31739@kuleuven.be> <1577921AD94DD17B.1915@groups.io> <1547497870081.57956@kuleuven.be> <5C3CFB7E.2010605@posteo.de> <5C3CFC32.9030509@posteo.de> <5C3E51A1.9020702@posteo.de> <5C3F2E54.1080204@posteo.de> <5C403B5E.90401@posteo.de> Date: Thu, 17 Jan 2019 06:16:30 -0500 Message-ID: <1UTCKeWJvN.I8azeiRmdpR@optiplex980-pc> In-Reply-To: <5C403B5E.90401@posteo.de> User-Agent: OEClassic/2.9 (Win7.7601; P; 2018-07-03) X-Spam-Score: -0.7 (/) 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 @@CONTACT_ADDRESS@@ for details. Content preview: Stefan Thought something was amiss looking at the phase plots here and only getting **** on those transmissions that decoded. I'll go back and reprocess the files later today with the new transmission parame [...] Content analysis details: (-0.7 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [2001:558:fe21:29:69:252:207:36 listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (jrusgrove[at]comcast.net) 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: 804c13e3e9cee7c32671a3406f88976e Subject: Re: LF: Re: EbNaut tonite Content-Type: multipart/alternative; boundary="6K9TGF8wI4K1cH853hEiisVx=_tTwETMHG" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.2 required=5.0 tests=HTML_60_70,HTML_MESSAGE, HTML_TAG_EXISTS_TBODY,TO_ADDRESS_EQ_REAL 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 --6K9TGF8wI4K1cH853hEiisVx=_tTwETMHG Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Stefan Thought something was amiss looking at the phase plots here and only g= etting=20 **** on those transmissions that decoded.=20 I'll go back and reprocess the files later today with the new transmis= sion parameters. Also will look for Riccardo and Domenico at that time= =2E=20 Jay W1VD =20 ----- Original Message ----- From: DK7FC Reply-To: To: Sent: 1/17/2019 3:22:54 AM Subject: Re: LF: Re: EbNaut tonite LF,=20 Unfortunately i obviously forgot to change to symbol length from 4 sec= onds to 8 seconds, so my message was transmitted in half the time and = then followed by a carrier taking about 15 minutes :-/ That costs 3 dB Eb/N0 for the message and will lower the phase plot qu= ality. And i occupied twice the bandwidth. Anyway the message can be d= ecoded. And the carrier can be treated as a second message of identica= l parameters but the message will be '****'. A lot to play with, for the RX stns. Tonite i'll=20 QSY to ELF (the real ELF, ITU band 1) for the first time here. The tre= e will=20 come back today and there will be 1 or 2 VLF/ULF experiments this week= end. 73, Stefan Am 16.01.2019 14:15, schrieb DK7FC:=20 Hello Rob and Jay,=20 Many thanks for the reports and all the details. Jay, did you miss the= 22 UTC=20 transmission or did it not decode? Interesting to see the phase plots. It is expected that the phase is l= ess=20 stable when the band opens. In the last transmission, the Eb/N0 is not= high=20 enough to see the phase pattern. I wonder if the traces become more evident if 4K19 is used. What happens when a solar event happens during the transmission time? = Does it=20 change the phase or just the D layer attenuation? Maybe we can repeat the experiment, using 4K19A. Of course a carrier c= ould be=20 used too, but i like to 'play' with EbNaut. So, tonite: f =3D 137.545 kHz Start time: 16.JAN.2019 22:00:00.3 UTC Symbol period: 8 s Characters: 4 CRC bits: 16 Coding 4K19A Antenna current: 4 A Duration: 30:56 [mm:ss] 73, Stefan Am 16.01.2019 12:29, schrieb Rob Renoud:=20 Stefan, Late start but 7 successful decodes. Have not gotten to phase plots y= et... UTCRankC Eb/N0Eb/N0MSGRef Phase 010005.61.620190,-30,0 30 020006.90.4201960,30 30 0 030009.95.8201990,60,60,0 0400011.28.82019180,180,150,150 050006.32.720190,-30,-30,-60 73, Rob =E2=80=93 K3RWR From: DK7FC=20 Sent: Tuesday, January 15, 2019 9:33 PM To: rsgb_lf_group@blacksheep.org=20 Subject: Re: LF: Re: EbNaut tonite LF,=20 Today, the messages will be transmitted as announced, starting 22 UTC 73, Stefan Am 14.01.2019 22:16, schrieb DK7FC:=20 PS: Repeatinh hourly, until including 6 UTC. Am 14.01.2019 22:13, schrieb DK7FC:=20 Hi LF,=20 Just a short EbNaut message tonite.=20 I'm interested to see the phase changes on a long path. Markus's showr= awsyms=20 does a good job there, as long as 8K19A is used. A shorter message sho= uld also=20 help to build up a clear trace. So let's try an unusual short message: f =3D 137.545 kHz Start time: 14.JAN.2019 22:00:00.3 UTC Symbol period: 4 s Characters: 4 CRC bits: 16 Coding 8K19A Antenna current: 4 A Duration: 30:56 [mm:ss] Reports, including phase plots, welcome :-) 73, Stefan --6K9TGF8wI4K1cH853hEiisVx=_tTwETMHG Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline
Stefan
 
Thought something was amiss looking at the phase plots here = and only getting **** on those transmissions that decoded. I'll g= o back and reprocess the files later today with the new transmiss= ion parameters. Also will look for Riccardo and Domenico at that time.=  
 
Jay W1VD  
 
 
----- Original Message -----
Sent: 1/17/2019 3:22:54 AM
Subject: Re: LF: Re: EbNaut tonite
LF,

Unfortunately i obviously forgot to change to symbol lengt= h from 4 seconds to 8 seconds, so my message was transmitted in half t= he time and then followed by a carrier taking about 15 minutes :-/
= That costs 3 dB Eb/N0 for the message and will lower the phase plot qu= ality. And i occupied twice the bandwidth. Anyway the message can be d= ecoded. And the carrier can be treated as a second message of identica= l parameters but the message will be '****'.
A lot to play with, fo= r the RX stns.

Tonite i'll QSY to ELF (the real ELF, ITU band 1= ) for the first time here. The tree will come back today and there wil= l be 1 or 2 VLF/ULF experiments this weekend.

73, Stefan

Am 16.01.2019 14:15, schrieb DK7FC:=20
Hello = Rob and Jay,

Many thanks for the reports and all the details. = Jay, did you miss the 22 UTC transmission or did it not decode?
Int= eresting to see the phase plots. It is expected that the phase is less= stable when the band opens. In the last transmission, the Eb/N0 is no= t high enough to see the phase pattern.
I wonder if the traces beco= me more evident if 4K19 is used.

What happens when a solar even= t happens during the transmission time? Does it change the phase or ju= st the D layer attenuation?
Maybe we can repeat the experiment, usi= ng 4K19A. Of course a carrier could be used too, but i like to 'play' = with EbNaut.

So, tonite:

f =3D 137.545 kHz
Start t= ime: 16.JAN.2019  22:00:00.3 UTC
Symbol period: 8 s
Charact= ers: 4
CRC bits: 16
Coding 4K19A
Antenna current: = 4 A
Duration: 30:56 [mm:ss]


 73, Stefan

=
Am 16.01.2019 12:29, schrieb Rob Renoud:=20
Stefan,
 
Late start but 7 successful decodes.  Have not gotten to pha= se plots yet...
 
UTC Rank C Eb/N0 Eb/N0 MSG Ref Phase
0100 0 5.6 1.6 2019 0,-30,0 30
0200 0 6.9 0.4 2019 60,30 30 0
0300 0 9.9 5.8 2019 90,60,60,0
0400 0 11.2 8.8 2019 180,180,150,150
0500 0 6.3 2.7 2019 0,-30,-30,-60=
 
73,
Rob =E2=80=93 K3RWR
 
 
From: DK7FC
Sent: Tuesday, January 15, 2019 9:33 PM
Subject: Re: LF: Re: EbNaut tonite
 
LF,

Today, the messages will be transmitted as= announced, starting 22 UTC

73, Stefan

Am 14.01.2019 22:= 16, schrieb DK7FC:=20
PS: Re= peatinh hourly, until including 6 UTC.

Am 14.01.2019 22:13, sch= rieb DK7FC:=20
Hi LF,=

Just a short EbNaut message tonite. I'm interested to see the= phase changes on a long path. Markus's showrawsyms does a good job th= ere, as long as 8K19A is used. A shorter message should also help to b= uild up a clear trace.
So let's try an unusual short message:
f =3D 137.545 kHz
Start time: 14.JAN.2019  22:00:00.3 UTC=
Symbol period: 4 s
Characters: 4
CRC bits: 16
= Coding 8K19A
Antenna current: 4 A
Duration: 30:56 [mm:ss]
Reports, including phase plots, welcome :-)

73, Stefan
=
=
--6K9TGF8wI4K1cH853hEiisVx=_tTwETMHG--