Return-Path: Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by mtain-md03.r1000.mx.aol.com (Internet Inbound) with ESMTP id F252238000090; Tue, 17 Jul 2012 09:42:26 -0400 (EDT) Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Sr81k-0005qp-Pc for rs_out_1@blacksheep.org; Tue, 17 Jul 2012 14:41:24 +0100 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Sr81k-0005qg-2u for rsgb_lf_group@blacksheep.org; Tue, 17 Jul 2012 14:41:24 +0100 Received: from smtpout2.wanadoo.co.uk ([80.12.242.42] helo=smtpout.wanadoo.co.uk) by relay1.thorcom.net with esmtp (Exim 4.77) (envelope-from ) id 1Sr81h-00020v-6i for rsgb_lf_group@blacksheep.org; Tue, 17 Jul 2012 14:41:22 +0100 Received: from AGB ([2.26.45.146]) by mwinf5d20 with ME id bRhH1j00739DqMu03RhH0v; Tue, 17 Jul 2012 15:41:20 +0200 Message-ID: <9A2C8FD8180E40D08ED3DCB38AE64692@AGB> From: "Graham" To: References: <7E7DFBB4D102A04DB5ADC88D66628A4A016538@ICTS-S-MBX5.luna.kuleuven.be> <2A0EF872376D40A584E0EB27CC0AA272@White> <1342520058.86520.YahooMailNeo@web171604.mail.ir2.yahoo.com> <500562FF.6090501@xs4all.nl> In-Reply-To: <500562FF.6090501@xs4all.nl> Date: Tue, 17 Jul 2012 14:41:17 +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: No Albert ... these are all TX methods , which is a good thing as Opera is also part of the second generation vhf fixed beacons , so various ways of generating the TX code are / will be needed .... We are 'all' waiting for a second party DSP decode hardware/ software , that can receive and decode the message , in the mean time , we can all use the free windows version ... may be for some time I think ? [...] 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 [80.12.242.42 listed in list.dnswl.org] 0.0 HTML_MESSAGE BODY: HTML included in message X-Scan-Signature: 1e655db081b90f1c2547d8d919be7bc0 Subject: Re: LF: opera coding demistified Content-Type: multipart/alternative; boundary="----=_NextPart_000_001C_01CD642A.39116DE0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.8 required=5.0 tests=HTML_40_50,HTML_FONTCOLOR_BLUE, HTML_FONTCOLOR_RED,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: 0:2:499662240:93952408 X-AOL-SCOLL-URL_COUNT: 0 x-aol-sid: 3039ac1d605750056bc2796f 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_001C_01CD642A.39116DE0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable No Albert ... these are all TX methods , which is a good thing as = Opera is also part of the second generation vhf fixed beacons , = so various ways of generating the TX code are / will be needed = .... We are 'all' waiting for a second party DSP decode hardware/ = software , that can receive and decode the message , in the mean = time , we can all use the free windows version ... may be for = some time I think ?=20 73-G. From: Albert=20 Sent: Tuesday, July 17, 2012 2:05 PM To: rsgb_lf_group@blacksheep.org=20 Subject: Re: LF: opera coding demistified All, Who is still receiving and reporting at the end of the day. If we all = start building smart PIC and other means to generate Opera. Do I miss something here, or are that only the stupid ones that use a PC = to generate/receive and report Opera ?=20 73, Albert PA0A =20 Op 17-7-2012 12:14, M0FMT schreef: Hi All=20 Why lock up a PC to beacon Opera? I use G4JNT's excelent PIC = progragram. He supplies the Hexadecimal code for you to program your own = PIC which gives you just that little bit more satifaction in building a = PIC based project. It is easy to build has full OP modes and sensible and adjustable = interval timing, no bigger than a matchbox!. Highly recommended. http://www.g4jnt.com/OperaBeacon.zip 73 es GL Pete M0FMT IO91UX From: Markus Vester To: rsgb_lf_group@blacksheep.org=20 Sent: Monday, 16 July 2012, 23:18 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_001C_01CD642A.39116DE0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
No Albert ... these  are  all  TX methods , which = is  a=20 good  thing  as   Opera  is also  part of=20 the  second  generation   vhf  fixed  = beacons ,=20 so  various  ways  of  generating the  TX = code =20 are / will  be  needed ....
 
We are  'all'  waiting  for  = a  second =20 party    DSP decode  hardware/ software , that  = can  receive  and  decode  the  message , in = the =20 mean time , we  can  all use the free   windows =20 version ...  may  be for  some  time  I = think ?=20
 
73-G.

From: Albert
Sent: Tuesday, July 17, 2012 2:05 PM
To: rsgb_lf_group@blacksheep.org= =20
Subject: Re: LF: opera coding demistified

All,

Who is still receiving and = reporting=20 at the end of the day. If we all start building smart PIC and other = means to=20 generate Opera.
Do I miss something here, or are that = only the stupid ones that use a PC = to=20 generate/receive and report Opera ?=20

73, Albert PA0A

   =

Op=20 17-7-2012 12:14, M0FMT schreef:
Hi All
 
Why lock up a PC to beacon Opera? I use G4JNT's excelent PIC = progragram.=20 He supplies the Hexadecimal code for you to program your own PIC which = gives=20 you just that little bit more satifaction in building a PIC based=20 project.
It is easy to build has full OP modes and sensible and = adjustable=20 interval timing, no bigger than a matchbox!.
 
=
73 es GL Pete M0FMT IO91UX
From: Markus Vester <markusvester@aol.com>
= To: rsgb_lf_group@blacksheep.org= =20
Sent: Monday, 16 = July=20 2012, 23:18
Subject: Re:=20 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=20 on air test, I decided to use SpecLab's test signal generator, = modulated by=20 an arbitrary waveform which can be loaded from a text=20 file. To fit to the required data format, I edited=20 the sequence by zero-padding from 239 to 256 = symbols, then=20 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 AM modulator period was set to = 0.256*4*256 =3D=20 262.144 seconds. Audio output was used to key my TX on 478.63=20 kHz. I sent for strings on Saturday night 21:30 to 21:47, = and=20 within a few minutes, pskreporter.de showed spots from DF2JP,=20 G8HUH, ON6EO and DD7PC.
 
In case you = would also like=20 to send Opera without "his master's software", or = associate obscure=20 received sequences with possible candidates, the little = program=20 and sourcecode is at
http://df6nm.bplaced.net/opera/opera_generator.z= ip (24=20 kB)
 
Best 73,
Markus (DF6NM)
From: Rik Strobbe
Sent: Friday, February 17, 2012 11:48 = 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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