Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-dl06.r1000.mx.aol.com (Internet Inbound) with ESMTP id E535B38000097; Mon, 16 Jul 2012 21:45:14 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Sqtwj-0004Dy-7K for rs_out_1@blacksheep.org; Mon, 16 Jul 2012 23:39:17 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Sqtwi-0004Do-M9 for rsgb_lf_group@blacksheep.org; Mon, 16 Jul 2012 23:39:16 +0100 Received: from smtpout3.wanadoo.co.uk ([80.12.242.59] helo=smtpout.wanadoo.co.uk) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1Sqtwf-0007jC-Ow for rsgb_lf_group@blacksheep.org; Mon, 16 Jul 2012 23:39:15 +0100 Received: from AGB ([2.26.30.14]) by mwinf5d44 with ME id bAfC1j0050JGYii03AfCsg; Tue, 17 Jul 2012 00:39:12 +0200 Message-ID: <4C9DA8DC927B4DF6876E358D37DE2EA4@AGB> From: "Graham" To: References: <7E7DFBB4D102A04DB5ADC88D66628A4A016538@ICTS-S-MBX5.luna.kuleuven.be> <2A0EF872376D40A584E0EB27CC0AA272@White> In-Reply-To: <2A0EF872376D40A584E0EB27CC0AA272@White> Date: Mon, 16 Jul 2012 23:39:12 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 X-Spam-Score: 0.0 (/) 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: And of course , there is a PIC code generator in the windows software , that can be used , Andy g4jnt has a post about using it for driving a standalone beacon..he did run op34 / 64 on 136 as a beacon early in the year ..The only thing that is missing is the internet beacon alert , clock accuracy of 0.2% is needed to achieve the lowest s/n decodes , Eddie G3GZO and I think Pete M0FMT are using standalone keying devices [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [80.12.242.59 listed in list.dnswl.org] 0.0 HTML_MESSAGE BODY: HTML included in message X-Scan-Signature: ecf102e6d15c1e466f357d5e6d956ac3 Subject: Re: LF: opera coding demistified Content-Type: multipart/alternative; boundary="----=_NextPart_000_00C8_01CD63AC.33F1C5E0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.6 required=5.0 tests=HTML_40_50,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: 0:2:497217504:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d4ad45004c3aa33a3 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none This is a multi-part message in MIME format. ------=_NextPart_000_00C8_01CD63AC.33F1C5E0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable And of course , there is a PIC code generator in the windows = software , that can be used , Andy g4jnt has a post about using = it for driving a standalone beacon..he did run op34 / 64 on 136 = as a beacon early in the year ..The only thing that is missing = is the internet beacon alert , clock accuracy of 0.2% is needed = to achieve the lowest s/n decodes , Eddie G3GZO and I think Pete = M0FMT are using standalone keying devices=20 73 -G. clock times for modes :-=20 Opera 05: 0.128 s 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 From: Markus Vester=20 Sent: Monday, July 16, 2012 11:18 PM 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 for 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=20 ------=_NextPart_000_00C8_01CD63AC.33F1C5E0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
And  of course , there  is a  PIC  code =20 generator  in the  windows   software ,=20 that  can be  used , Andy  g4jnt  has = a =20 post  about  using  it  for  driving  = a =20 standalone  beacon..he did  run  op34 / 64  on = 136  as=20 a  beacon  early in the  year  ..The only = thing =20 that  is  missing  is the  internet  = beacon =20 alert ,  clock  accuracy  of  0.2%  is=20 needed  to  achieve the  lowest s/n  decodes , = Eddie =20 G3GZO  and  I think  Pete  M0FMT  are  = using =20 standalone   keying   devices
 
73 -G.
 
clock times  for   modes  :-
 
Opera    05: 0.128 = s
Opera     =20 1: 0.256 s
Opera      2: 0.512=20 s
Opera      4: 1.024=20 s
Opera      8: 2.048 = s
Opera   =20 32: 8.192 s
 

From: Markus Vester
Sent: Monday, July 16, 2012 11:18 PM
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=20 instead 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=20 air test, I decided to use SpecLab's test signal generator, modulated by = an=20 arbitrary waveform which can be loaded from a text = file. To fit=20 to the required data format, I edited the sequence by=20 zero-padding from 239 to 256 symbols, then replacing every "1" = by two=20 lines of "32767", and every "0" by two lines of = "0", giving=20 512 samples total. For "Op4" speed, the AM = modulator=20 period was set to 0.256*4*256 =3D 262.144 seconds. Audio output was used = to key=20 my TX on 478.63 kHz. I sent for strings on Saturday night = 21:30=20 to 21:47, and within a few minutes, pskreporter.de showed spots = from DF2JP,=20 G8HUH, ON6EO and DD7PC.
 
In case you would = also like to=20 send Opera without "his master's software", or associate obscure = received=20 sequences with possible candidates, the little program and = sourcecode=20 is at
http://df6nm.= bplaced.net/opera/opera_generator.zip (24=20 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 coding,=20 those interested can read the attached file.

73, Rik  ON7YD = - OR7T=20
 
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