Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dd03.r1000.mx.aol.com (Internet Inbound) with ESMTP id 17A5E3800008D; Wed, 18 Jul 2012 13:48:24 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1SrEqu-0008Ua-Th for rs_out_1@blacksheep.org; Tue, 17 Jul 2012 21:58:40 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1SrEqu-0008UO-AX for rsgb_lf_group@blacksheep.org; Tue, 17 Jul 2012 21:58:40 +0100 Received: from imr-da06.mx.aol.com ([205.188.169.203]) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1SrEqq-0004Re-N8 for rsgb_lf_group@blacksheep.org; Tue, 17 Jul 2012 21:58:39 +0100 Received: from mtaout-db03.r1000.mx.aol.com (mtaout-db03.r1000.mx.aol.com [172.29.51.195]) by imr-da06.mx.aol.com (8.14.1/8.14.1) with ESMTP id q6HKwXA6024221 for ; Tue, 17 Jul 2012 16:58:33 -0400 Received: from White (nrbg-4d057fff.pool.mediaWays.net [77.5.127.255]) by mtaout-db03.r1000.mx.aol.com (MUA/Third Party Client Interface) with ESMTPA id F086EE00012E for ; Tue, 17 Jul 2012 16:58:29 -0400 (EDT) Message-ID: From: "Markus Vester" To: References: <7E7DFBB4D102A04DB5ADC88D66628A4A016538@ICTS-S-MBX5.luna.kuleuven.be> <4C9DA8DC927B4DF6876E358D37DE2EA4@AGB> <1342491430.757211672@f318.mail.ru> Date: Tue, 17 Jul 2012 22:58:29 +0200 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 12.0.1606 X-MimeOLE: Produced By Microsoft MimeOLE V12.0.1606 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20110426; t=1342558713; bh=gprNHTeqfCeYbcrFVJqcmKpdaLKhxxJE4BCrM+Bl1dQ=; h=From:To:Subject:Message-ID:Date:MIME-Version:Content-Type; b=mnL1LxiuhBri45qUF6S5rJEW2drtmh9++cCNAGZnxQx83kZJ5Sjl/savOfrOBin5o GpTZaKEwQMAlCsXxLH34XKlNdCMdEzjXS7S8vCLEef8ylusuXzkFrH3GgSwN6QCV7T FJy/W8/Y15bglyCm7jXE8K5dz66wBaoT+jO9MorE= X-AOL-SCOLL-SCORE: 1:2:473976192:93952408 X-AOL-SCOLL-URL_COUNT: 2 X-Spam-Score: 1.0 (+) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Thanks a lot Alex for the hint! Very nice work. So it looks like I've once more reinvented a wheel, but it was fun anyhow. If only I could read Russian ;-) Best 73, Markus (DF6NM) [...] Content analysis details: (1.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [205.188.169.203 listed in list.dnswl.org] 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 SPF_PASS SPF: sender matches SPF record 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid 1.0 FREEMAIL_REPLY From and body contain different freemails X-Scan-Signature: 783e848a630124d13ae6ef06c152f951 Subject: Re: LF: Re[2]: LF: opera coding demistified Content-Type: multipart/alternative; boundary="----=_NextPart_000_0007_01CD646F.AEAE7A30" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.3 required=5.0 tests=HTML_50_60,HTML_MESSAGE, MISSING_OUTLOOK_NAME 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 x-aol-global-disposition: G X-AOL-SCOLL-SCORE: 1:2:495981952:93952408 X-AOL-SCOLL-URL_COUNT: 2 X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-m016.1 ; domain : mx.aol.com DKIM : pass x-aol-sid: 3039ac1d408f5006f6e867d4 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none Dies ist eine mehrteilige Nachricht im MIME-Format. ------=_NextPart_000_0007_01CD646F.AEAE7A30 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Thanks a lot Alex for the hint! Very nice work.=20 So it looks like I've once more reinvented a wheel, but it was fun = anyhow. If only I could read Russian ;-) Best 73, Markus (DF6NM) From: Alex K=20 Sent: Tuesday, July 17, 2012 4:17 AM To: rsgb_lf_group@blacksheep.org=20 Subject: LF: Re[2]: LF: opera coding demistified Hello LF! Please see also: http://136.su/forum/index.php?topic=3D117.0 http://rn3aus.narod.ru/dds_tx/ and in attachment is C coding routine for OPERA 73 de Alex/rn3aus Opera 1: 0.256 s Opera 2: 0.512 s Opera 4: 1.024 s Opera 8: 2.048 s Opera 32: 8.192 s To:rsgb_lf_group@blacksheep.org=20 Subject: Re: LF: opera coding demistified Stefan Schaefer wrote=20 > G.., i have done it. Downloaded ... to my LF PC. Still can't belive = it... ... well, I haven't ;-) Out of curiosity, I have instead implemented = Guido's excellent guide on Opera encoding=20 http://rn3aus.narod.ru/opera_protocol.pdf in a little Basic program, which outputs the 110... keying sequence = for any given callsign. And it works! For a quick on air test, I decided to use SpecLab's test = signal generator, modulated by an arbitrary waveform which can be loaded = from a text file. To fit to the required data format, I edited the = sequence by zero-padding from 239 to 256 symbols, then replacing every = "1" by two lines of "32767", and every "0" by two lines of "0", giving = 512 samples total. For "Op4" speed, the AM modulator period was set to = 0.256*4*256 =3D 262.144 seconds. Audio output was used to key my TX on = 478.63 kHz. I sent four strings on Saturday night 21:30 to 21:47, and = within a few minutes, pskreporter.de showed spots from DF2JP, G8HUH, = ON6EO and DD7PC. In case you would also like to send Opera without "his master's = software", or associate obscure received sequences with possible = candidates, the little program and sourcecode is at=20 http://df6nm.bplaced.net/opera/opera_generator.zip (24 kB) Best 73, Markus (DF6NM) From: Rik Strobbe=20 Sent: Friday, February 17, 2012 11:48 AM To: rsgb_lf_group@blacksheep.org=20 Subject: LF: opera coding demistified PE1NNZ seems to have demistified the opera coding, those interested = can read the attached file. 73, Rik ON7YD - OR7T ------=_NextPart_000_0007_01CD646F.AEAE7A30 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable
Thanks a lot Alex for the hint! Very = nice work.=20
 
So it looks like I've once more = reinvented a=20 wheel, but it was fun anyhow. If only I = could read=20 Russian ;-)
 
Best 73,
Markus (DF6NM)

From: Alex K
Sent: Tuesday, July 17, 2012 4:17 AM
Subject: LF: Re[2]: LF: opera coding = demistified

Hello=20 LF!
Please see also: http://136.= su/forum/index.php?topic=3D117.0
http://rn3aus.narod.ru/d= ds_tx/
and=20 in attachment is C coding routine for OPERA
73 de = Alex/rn3aus


Opera      1: 0.256=20 s
Opera      2: 0.512=20 s
Opera      4: 1.024=20 s
Opera      8: 2.048 = s
Opera   =20 32: 8.192 s
 
To:rsgb_lf_group@blacksheep.org=20
Subject: Re: LF: opera coding = demistified

Stefan Schaefer wrote
> G.., i have done it. Downloaded ... to my = LF PC.=20 Still can't belive it...
 
... well, I haven't ;-) Out of curiosity, I = have instead=20 implemented Guido's excellent guide on Opera=20 encoding 
http://rn3aus.narod.ru/opera_protocol.pdf
in a little Basic program, = which outputs the=20 110... keying sequence for any given callsign.
 
And it works! For a quick on air = test, I decided=20 to use SpecLab's test signal generator, modulated by an arbitrary = waveform=20 which can be loaded from a text file. To fit to the = required=20 data format, I edited the sequence by zero-padding from = 239 to=20 256 symbols, then replacing every "1" by two lines of "32767", = and every=20 "0" by two lines of "0", giving 512 samples total. For "Op4" = speed, the=20 AM modulator period was set to 0.256*4*256 =3D 262.144 seconds. Audio = output was=20 used to key my TX on 478.63 kHz. I sent four strings on = Saturday night 21:30 to 21:47, and within a few minutes, = pskreporter.de=20 showed spots from DF2JP, G8HUH, ON6EO and DD7PC.
 
In case you would also like to send = Opera without=20 "his master's software", or associate obscure received=20 sequences with possible candidates, the little program and=20 sourcecode is at
http://df6nm.bplaced.net/opera/opera_generator.zip (24 kB)
 
Best 73,
Markus (DF6NM)
 
From: = Rik Strobbe
Sent: Friday, February 17, 2012 11:48=20 AM
To: rsgb_lf_group@blacksheep.org=20
Subject: LF: opera coding=20 demistified

PE1NNZ seems to have demistified the = opera=20 coding, those interested can read the attached file.

73, = Rik =20 ON7YD - OR7T =
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