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 w310tUbK012132 for ; Sun, 1 Apr 2018 02:55:33 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1f2R4s-0001FP-5j for rs_out_1@blacksheep.org; Sun, 01 Apr 2018 01:42:34 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1f2R4k-0001FG-Dz for rsgb_lf_group@blacksheep.org; Sun, 01 Apr 2018 01:42:26 +0100 Received: from resqmta-ch2-02v.sys.comcast.net ([69.252.207.34]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1f2R4d-0000p9-9b for rsgb_lf_group@blacksheep.org; Sun, 01 Apr 2018 01:42:25 +0100 Received: from resomta-ch2-12v.sys.comcast.net ([69.252.207.108]) by resqmta-ch2-02v.sys.comcast.net with ESMTP id 2R2ZfinXgHrMc2R2Zf8vIB; Sun, 01 Apr 2018 00:40:11 +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=1522543211; bh=7a+p7uZs3a8/lTRm9g6soeHHQg3GYDf80+Pi29wpCI4=; h=Received:Received:From:Subject:To:Content-Type:MIME-Version:Date: Message-ID; b=ohxkJjcVMfgJEHv1oGsHZhxHW+caGurPwGMLTJ2ST6EmbBv9JA1m8LgO2waQ4X3NM v8UAV7WUNR/jbOLoZHB3P8DeAUg6BG2ystEqEy8Xdxee2Q7+moVFGO1HJNgLNu55u7 NpQB6RteBn6iVvbVDicKPB5aSJGVk5XvccfuTeaPLOEyScL4DVeWRmzp6jPx1v6fR3 Yk9puiWeB4ATyszqxv+ooq8vePRiQVwupIK9mjO+IA7DVYoKxgY8CqPBmxtw7LUTDv DiURXASl+R+s78RtXXRBdOWib8wKWtiSQ+ishwMB3XI05wwYJFiSXoFrkQ5iaeUBbt K9U125+Qd5hPQ== Received: from Optiplex980-PC ([73.4.253.141]) by resomta-ch2-12v.sys.comcast.net with SMTP id 2R2Wfok65b7rV2R2XfwsYO; Sun, 01 Apr 2018 00:40:10 +0000 From: "jrusgrove@comcast.net" To: "rsgb_lf_group@blacksheep.org" MIME-Version: 1.0 References: <1627e033844-1dd5-3a4b@webjasstg-vab24.srv.aolmail.net> Date: Sat, 31 Mar 2018 20:40:08 -0400 Message-ID: <1UQQ2x10tc.1cFFXLxbjl9@optiplex980-pc> In-Reply-To: <1627e033844-1dd5-3a4b@webjasstg-vab24.srv.aolmail.net> User-Agent: OEClassic/2.7 (Win7; P; 2017-02-12) X-Mailer: OEClassic/2.7 (Win7; P; 2017-02-12) X-CMAE-Envelope: MS4wfFQbeV5Ge/3cc0rRnNlbZGSVubA9Xvon1mnyf70CzciMHXp5zGBrVXwGoml24hPoT5rNO+a5TslH2ob9JNSlPTTzUitq7osikzVfcuyzJZYXLuGsgAoA CF/zGYWi64QzthkM8DLLAvAW9WYxDWjugMCn/8UuTejVBkE4kXTKLqULdg1cTTU0iDem/N0HgIw97A== 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: Markus No optimization ... first pass. Jay [...] 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 (jrusgrove[at]comcast.net) -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: fe104f0109b1b9777bcb4182b547ef25 Subject: Re: LF: EbNaut March 31 / April 1 Content-Type: multipart/mixed; boundary="yJ7ppYs1ZdDSENQhSeHQHzlAEnQIoOT=_J" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.9 required=5.0 tests=HTML_30_40,HTML_MESSAGE, MAILTO_TO_SPAM_ADDR,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 --yJ7ppYs1ZdDSENQhSeHQHzlAEnQIoOT=_J Content-Type: multipart/alternative; boundary="4FCbtWWjIanyK=_VvEOWp1ixea87tZsqgb" --4FCbtWWjIanyK=_VvEOWp1ixea87tZsqgb Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Markus No optimization ... first pass. Jay ----- Original Message ----- From: Markus Vester Reply-To: To: Sent: 3/31/2018 5:42:44 PM Subject: Re: LF: EbNaut March 31 / April 1 Hi Ric, all, if I can get it all to work I will join you tonight: 137520.000 Hz, 5 char, 8K19A CRC 16, 3 second symbols, start time 22:0= 0, 23:00=20 etc (first half hour), duration 0:25:36=20 Hope that 2.00 Hz spacing (orthogonal modulation) between us will be o= k as we=20 are both on the European side. =20 A test transmission has started at 21:30 (i.e. second half hour) Best 73, Markus (DF6NM) -----Urspr=C3=BCngliche Mitteilung-----=20 Von: Riccardo Zoli An: LF Group Verschickt: Sa, 31. Mrz 2018 16:24 Betreff: Re: LF: EbNaut March 30/31 Hi Markus, LF Yes, 5 Hz are quite indequate for simultaneous EbNaut transmissions. Anyway, I switch in RX on the second half of every hour. Rob is workin= g for RX=20 capability, then, once he's ready, we could exchange TX and RX slots. QSY for me this evening at 137522.000313 for another TA attempt (many = thanks, Jay) with same EbNaut parameters and scheduling. All the best 73 de Riccardo IW4DXW =20 Il Sab 31 Mar 2018, 14:07 Markus Vester ha scri= tto: Again a strong signal with some error-free decodes from IW4DXW. Also f= ound K3RWR finally on 137490 Hz, but only once after 4:00, and another= near-miss around sunrise after 4:30 (logs attached). Rethinking my frequency suggestion, it may not be ideal to place simul= taneous signals from both sides of the pond so near to each other. EbN= aut employs hard-keyed phase switching both for the transmitter and fo= r the matched filter in the receive software, so keying sidebands or a= liasing from a near station may spill over an adjacent weak signal (al= though in principle this could be minimized by orthogonal modulation, = using identical symbol timing for all stations, and frequencies spaced= by an exact integer multiple of the common clockrate). But there are = also other disadvantages, like noise-blanker induced crossmodulation a= nd threshold increase. So in the end it may be better to use either se= parate timeslots or separate subbands, in analogy to our TA- and Eu-QR= SS slots. Best 73,=20 Markus (DF6NM) -----Urspr=C3=BCngliche Mitteilung-----=20 Von: Markus Vester An: rsgb_lf_group Verschickt: Fr, 30. Mrz 2018 23:03 Betreff: LF: EbNaut March 29/30 Last night Mar 29/30, I got excellent decodes from IW4DXW, but unfortu= nately not a single one from K3RWR on 137490 Hz. Best 73,=20 Markus (DF6NM) ______________________________________ LF: EbNaut attempt at 137495 kHz =20 Von: Riccardo Zoli =20 An: LF Group =20 Datum: Do, 29. Mrz 2018 19:53=20 Hi LF This night, I have scheduled some transmissions every hour (start at x= x:00). QRG: 137494.99988 8K19A CRC 20 3 sec./sym. 6 char duration: 29 min. 36 sec. Reports are welcome. All the best 73 de Riccardo IW4DXW ______________________________________ Re: LF: K3RWR LF EbNaut Trial #2 =20 Von: Rob Renoud =20 An: rsgb_lf_group =20 Datum: Do, 29. Mrz 2018 21:22=20 TU all for LF EbNaut reception reports for my 28/29 March 2018 trial o= f a 12 char, CRC 15, 2 sec symbol 8K19 transmission. The first night = results of this format are very positive! I will transmit this format again this evening (29/30 Mar) and tomorro= w (30/31 Mar) on frequency 137.490 KHz. Reports and comments welcome. Work is starting this weekend on EbNau= t RX capability for my station. 73, Rob - K3RWR --4FCbtWWjIanyK=_VvEOWp1ixea87tZsqgb Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline
Markus
 
No optimization ... first pass.
 
Jay
 
 
 
 
----- Original Message -----
From: Markus Vester <markusvester@aol.com>
Sent: 3/31/2018 5:42:44 PM
Subject: Re: LF: EbNaut March 31 / April 1
Hi Ric, all,

if I can get it all&n= bsp;to work I will join you tonight:

137520.000 Hz, 5 char= , 8K19A CRC 16, 3 second symbols, start time 22:00, 23:00 etc (first h= alf hour), duration 0:25:36

Hope tha= t 2.00 Hz spacing (orthogonal modulation) between us will be ok a= s we are both on the European side.  

A = test transmission has started at 21:30 (i.e. second half hou= r)

Best 73,
Markus (DF6NM)

-----Urspr=C3= =BCngliche Mitteilung-----
Von: Riccardo Zoli <ric= cardozoli80@gmail.com>
An: LF Group <rsgb_lf_gro= up@blacksheep.org>
Verschickt: Sa, 31. Mrz 2018 16:= 24
Betreff: Re: LF: EbNaut March 30/31
Hi Markus, LF

Yes, 5 Hz are quite indequate for simultaneous E= bNaut transmissions.
Anyway, I switch in RX on the second half of every h= our. Rob is working for RX capability, then, once he's ready, we could= exchange TX and RX slots.
QSY for me this evening at 1375= 22.000313 for another TA attempt (many thanks, Jay) with same EbNa= ut parameters and scheduling.

All the best
73 de Riccardo IW4DXW

 
Il Sab 31 Mar 2018, 14:07 Markus Vester &l= t;markusvester@aol.com> ha scritto:<= BR abp=3D"2822">
Again a strong signal with some error-fre= e decodes from IW4DXW. Also found K3RWR finally on 137490 Hz, but only= once after 4:00, and another near-miss around sunrise after 4:30 (log= s attached).

Rethinking my frequency = suggestion, it may not be ideal to place simultaneous signals from bot= h sides of the pond so near to each other. EbNaut employs hard-keyed p= hase switching both for the transmitter and for the matched filter in = the receive software, so keying sidebands or aliasing from a near stat= ion may spill over an adjacent weak signal (although in principle this= could be minimized by orthogonal modulation, using identical symbol t= iming for all stations, and frequencies spaced by an exact intege= r multiple of the common clockrate). But there are also other disadvan= tages, like noise-blanker induced crossmodulation and threshold increa= se. So in the end it may be better to use either separate timeslots or= separate subbands, in analogy to our TA- and Eu-QRSS slots.

Best 73,
Markus (DF6NM)


---= --Urspr=C3=BCngliche Mitteilung-----
Von: Markus Vest= er <markusvester@aol.com>
An: rsgb_lf_group <rsgb_l= f_group@blacksheep.org>
Verschickt: Fr, 30. Mrz= 2018 23:03
Betreff: LF: EbNaut March 29/30

Last night Mar 29/30, I got excellent decodes from IW4DXW, b= ut unfortunately not a single one from K3RWR on 137490 Hz.

Best 73,
Markus (DF6NM)
______________________________________
LF: EbNaut a= ttempt at 137495 kHz 
Von: Riccardo Zoli <riccardozoli80@gmail.com>
An: LF Group <rsgb_lf_gro= up@blacksheep.org>
Datum: Do, 29. Mrz 2018 19:= 53

Hi LF

This night, I have scheduled some transmissions every = hour (start at xx:00).

QRG: 137494.99988
8K19A
CRC 20
3 sec./sym.
6 char
duration: 29 min. 36 sec.

Reports are welcome.

All the best

73 de Riccardo IW4DXW
________________= ______________________
Re: LF: K3RWR LF EbNaut Trial #= 2 
Von: Rob Renoud <k3rwr@md.metrocast.net>
An: rsgb_lf_group = <rsgb_lf_group@blacksheep.org>
Datum: Do, 29. Mrz 2018 21:22

TU all for LF EbNaut reception reports for my 28/29 Ma= rch 2018 trial of a 12 char, CRC 15, 2 sec symbol 8K19 transmission.&n= bsp; The first night results of this format are very positive!

I will transmit this format again this evening (29/30 = Mar) and tomorrow (30/31 Mar) on frequency 137.490 KHz.

Reports and comments welcome.   Work is star= ting this weekend on EbNaut RX capability for my station.

73,
Rob - K3RWR

<= BR abp=3D"2878">
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