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 w2VLn1jg010198 for ; Sat, 31 Mar 2018 23:49:04 +0200 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1f2OHd-0000C0-0V for rs_out_1@blacksheep.org; Sat, 31 Mar 2018 22:43:33 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1f2OGy-0000Br-Lz for rsgb_lf_group@blacksheep.org; Sat, 31 Mar 2018 22:42:52 +0100 Received: from omr-m008e.mx.aol.com ([204.29.186.7]) by relay1.thorcom.net with esmtps (TLSv1:DHE-RSA-AES256-SHA:256) (Exim 4.89) (envelope-from ) id 1f2OGt-0000Mb-JP for rsgb_lf_group@blacksheep.org; Sat, 31 Mar 2018 22:42:49 +0100 Received: from mtaomg-mac02.mx.aol.com (mtaomg-mac02.mx.aol.com [172.26.222.208]) by omr-m008e.mx.aol.com (Outbound Mail Relay) with ESMTP id A25EF38000EE for ; Sat, 31 Mar 2018 17:42:44 -0400 (EDT) Received: from core-acd05f.mail.aol.com (core-acd05.mail.aol.com [172.27.22.15]) by mtaomg-mac02.mx.aol.com (OMAG/Core Interface) with ESMTP id 2327D38000082 for ; Sat, 31 Mar 2018 17:42:44 -0400 (EDT) Received: from 188.194.222.230 by webjasstg-vab24.srv.aolmail.net (10.96.25.91) with HTTP (WebMailUI); Sat, 31 Mar 2018 17:42:43 -0400 Date: Sat, 31 Mar 2018 17:42:44 -0400 From: Markus Vester To: rsgb_lf_group@blacksheep.org Message-Id: <1627e033844-1dd5-3a4b@webjasstg-vab24.srv.aolmail.net> In-Reply-To: MIME-Version: 1.0 X-MB-Message-Source: WebUI X-MB-Message-Type: User X-Mailer: JAS STD X-Originating-IP: [188.194.222.230] x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20150623; t=1522532564; bh=PnVFpQIBDSOEefYt7OUTMYJnQTm8KkpVtwoixaviS8Q=; h=From:To:Subject:Message-Id:Date:MIME-Version:Content-Type; b=ac++AmqeD9ITRNmb1fB9OeykTq/iZ80iJoX9eJGN1g+oOG1hqac1ACL9aBGL+PH5Z cDpKBZ7wYjoZXwEbZnobWsGHW5nZO4F3qJb7SQqxTsrxcE3VEL0nSF+wo1/Ifm/Vea H3dM9z6tl/t40zEh9m1U0vRv9vA8/e46Cweh3Vnk= x-aol-sid: 3039ac1aded05ac000d45cd8 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. 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Content preview: 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 22:00, 23:00 etc (first half hour), duration 0:25:36 [...] 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 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: 16a6530e4735ccb856cf9bc7c6cb9773 Subject: Re: LF: EbNaut March 31 / April 1 Content-Type: multipart/alternative; boundary="----=_Part_17774_196909972.1522532563011" 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 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_17774_196909972.1522532563011 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable 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 22:00, 23= :00 etc (first half hour), duration 0:25:36=20 Hope that 2.00 Hz spacing (orthogonal modulation) between us will be ok as = we 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 working for= RX 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 thank= s, Jay) with same EbNaut parameters and scheduling. All the best 73 de Riccardo IW4DXW Il Sab 31 Mar 2018, 14:07 Markus Vester ha scritto: Again a strong signal with some error-free 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 (logs attached). Rethinking my frequency suggestion, it may not be ideal to place simultaneo= us signals from both sides of the pond so near to each other. EbNaut employ= s hard-keyed phase switching both for the transmitter and for the matched f= ilter in the receive software, so keying sidebands or aliasing from a near = station may spill over an adjacent weak signal (although 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 th= e common clockrate). But there are also other disadvantages, like noise-bla= nker induced crossmodulation and threshold increase. So in the end it may b= e better to use either separate timeslots or separate subbands, in analogy = to our TA- and Eu-QRSS 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 unfortunatel= y 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 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 =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 of a 1= 2 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 tomorrow (30= /31 Mar) on frequency 137.490 KHz. Reports and comments welcome. Work is starting this weekend on EbNaut RX = capability for my station. 73, Rob - K3RWR ------=_Part_17774_196909972.1522532563011 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
Hi Ric, all,

if I can get it all&nbs= p;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 half hour), d= uration 0:25:36

Hope that 2.00 Hz sp= acing (orthogonal modulation) between us will be ok as we are both on the E= uropean side.  

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

Best 73,
Markus (DF= 6NM)

-----Urspr=C3=BCngliche Mitteilung-----
Von: Riccardo Zoli <riccardozoli80@gmail.com>
= An: LF Group <rsgb_lf_group@blacksheep.org>
Verschick= t: 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 transmissio= ns.
Anyway, I switch in RX on the secon= d half of every hour. Rob is working for RX capability, then, once he's rea= dy, we could exchange TX and RX slots.
= QSY for me this evening at 137522.000313 for anoth= er TA attempt (many thanks, Jay) with same EbNaut parameters and scheduling= .

All the best
73 de Riccardo IW= 4DXW

 
Il Sab 31 Mar 2018, 14:07 Markus Vester <markusvester@aol.com> ha scritto:
Again a strong signal with some error-free decodes f= rom IW4DXW. Also found 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 simultaneous signals from both sides of the po= nd so near to each other. EbNaut employs hard-keyed phase switching both fo= r the transmitter and for the matched filter in the receive software, so ke= ying sidebands or aliasing from a near station may spill over an adjacent w= eak signal (although in principle this could be minimized by orthogonal mod= ulation, using identical symbol timing for all stations, and frequenci= es spaced by an exact integer multiple of the common clockrate). But there = are also other disadvantages, like noise-blanker induced crossmodulation an= d threshold increase. 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,
Mar= kus (DF6NM)


-----Urspr=C3= =BCngliche Mitteilung-----
Von: Markus Vester <markusvester@aol.com>
An: rsgb_lf_g= roup <rsgb_lf_group@blacksheep.org&g= t;
Verschickt: Fr, 30. Mrz 2018 23:03
Betre= ff: LF: EbNaut March 29/30

Last night Mar 29/30, I got = excellent decodes from IW4DXW, but unfortunately not a single one from K3RW= R on 137490 Hz.
=

Best 73,
Markus (DF6NM)
__= ____________________________________
LF: EbNaut attempt at = 137495 kHz 
Von: Riccardo Zoli <riccardozoli80@gmail.com>
An: LF Group &l= t;rsgb_lf_group@blacksheep.org>
Datum: Do, 29. Mrz 2018 19:53

Hi LF

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

QRG: 137494.99988
8K19ACRC 20
3 sec./sym.
6 charduration: 29 min. 36 sec.

Reports are welc= ome.

All the best

73 de Riccardo IW4D= XW
______________________________________
R= e: LF: K3RWR LF EbNaut Trial #2 
Von: Rob Renoud <= k3rwr@md.metrocast.net>
A= n: rsgb_lf_group <rsgb_lf_group@blackshe= ep.org>
Datum: Do, 29. Mrz 2018 21:22

TU all for LF EbNaut reception reports for my 28/29 March 2018 trial= of a 12 char, CRC 15, 2 sec symbol 8K19 transmission.  The first nigh= t results of this format are very positive!

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

Reports and comments welcome.&nbs= p;  Work is starting this weekend on EbNaut RX capability for my stati= on.

73,
Rob - K3RWR


------=_Part_17774_196909972.1522532563011--