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[195.171.43.25]) by mx.google.com with ESMTP id ei4si12427245wid.58.2013.12.27.09.37.44 for ; Fri, 27 Dec 2013 09:37:44 -0800 (PST) Received-SPF: neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) client-ip=195.171.43.25; Authentication-Results: mx.google.com; spf=neutral (google.com: 195.171.43.25 is neither permitted nor denied by best guess record for domain of owner-rsgb_lf_group@blacksheep.org) smtp.mail=owner-rsgb_lf_group@blacksheep.org Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1Vwb3h-0006Vp-1a for rs_out_1@blacksheep.org; Fri, 27 Dec 2013 17:18:49 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1Vwb3g-0006Vg-D8 for rsgb_lf_group@blacksheep.org; Fri, 27 Dec 2013 17:18:48 +0000 Received: from relay2.uni-heidelberg.de ([129.206.210.211]) by relay1.thorcom.net with esmtps (TLSv1:AES256-SHA:256) (Exim 4.77) (envelope-from ) id 1Vwb3e-0003Ax-GO for rsgb_lf_group@blacksheep.org; Fri, 27 Dec 2013 17:18:47 +0000 Received: from freitag.iup.uni-heidelberg.de (freitag.iup.uni-heidelberg.de [129.206.29.204]) by relay2.uni-heidelberg.de (8.13.8/8.13.8) with ESMTP id rBRHIDYl031676 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 27 Dec 2013 18:18:14 +0100 Received: from [129.206.22.206] (pc206.iup.uni-heidelberg.de [129.206.22.206]) by freitag.iup.uni-heidelberg.de (8.12.11.20060308/8.11.2) with ESMTP id rBRHIDQo010467; Fri, 27 Dec 2013 18:18:13 +0100 Message-ID: <52BDB64A.50000@iup.uni-heidelberg.de> Date: Fri, 27 Dec 2013 18:18:02 +0100 From: =?ISO-8859-1?Q?Stefan_Sch=E4fer?= User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3 MIME-Version: 1.0 To: rsgb_lf_group@blacksheep.org CC: Markus Vester References: <20C550A7D07741688C6A26E73CBCF741@White> In-Reply-To: <20C550A7D07741688C6A26E73CBCF741@White> X-Spam-Score: -2.9 (--) 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: Hello Markus, Excellent! This is very nice and i will give it a try later in the night when i am in the shack again. Finally my TX frequency will be accurate then. And then i can TX OP32 with no additional effort on VLF. Maybe i can try OP4H then too. Thank you for your work to find it out :-) [...] Content analysis details: (-2.9 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at http://www.dnswl.org/, medium trust [129.206.210.211 listed in list.dnswl.org] -0.6 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain 0.0 HTML_MESSAGE BODY: HTML included in message X-Scan-Signature: b14bcaca65d4b584f77d02a84d381cb4 Subject: Re: LF: Sending Opera with SpecLab Content-Type: multipart/alternative; boundary="------------020507020309090200030806" 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_30_40,HTML_MESSAGE 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 Status: O X-Status: X-Keywords: X-UID: 2952 This is a multi-part message in MIME format. --------------020507020309090200030806 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Hello Markus, Excellent! This is very nice and i will give it a try later in the night when i am in the shack again. Finally my TX frequency will be accurate then. And then i can TX OP32 with no additional effort on VLF. Maybe i can try OP4H then too. Thank you for your work to find it out :-) 73, Stefan/DK7FC Am 27.12.2013 01:45, schrieb Markus Vester: > Today I finally found a simple solution to send Opera sequences from > SpecLab's digimode terminal. The nice thing about this is that you can > use all of SpecLab's powerful functions, like samplerate correction, > adjustable pulse shaping, or high audio frequencies. This seems very > useful, especially in the context of possible future VLF Opera > transmissions. > First you will need to create a text file consisting of the 239 > bit 1101... sequence for your callsign. This can be generated from the > PIC menu in the original Opera software. Or you can use my little code > generator tool at > http://df6nm.bplaced.net/opera/opera_generator.zip - simply copy > opgen.exe from the zip and type > opgen mycallsign >opera.txt > into a command window. > In SpecLab, open the digimode terminal and configure it for ASK with > no encoding, as shown in the attached "_settings" screenshot. The > symbol rate has to be set to the inverse dotlength for the desired > Opera speed: > mode dotlength rate > (seconds) (sym/s) > Op-8 1.024s 0.9766 > Op-32 8.192s 0.12207 > Op-4H 65.536s 0.01526 > Shaping time can be selected from hard (0%) to soft (50%) keying. Then > enter your desired audio frequency and use "Load TX text" from the > file menue to load your opera.txt file. The sequence will appear in > the TX window, and the transmission can started by hitting the RX / TX > button. > Best 73, > Markus (DF6NM) --------------020507020309090200030806 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Hello Markus,

Excellent! This is very nice and i will give it a try later in the night when i am in the shack again. Finally my TX frequency will be accurate then. And then i can TX OP32 with no additional effort on VLF. Maybe i can try OP4H then too.
Thank you for your work to find it out :-)

73, Stefan/DK7FC

Am 27.12.2013 01:45, schrieb Markus Vester:
Today I finally found a simple solution to send Opera sequences from SpecLab's digimode terminal. The nice thing about this is that you can use all of SpecLab's powerful functions, like samplerate correction, adjustable pulse shaping, or high audio frequencies. This seems very useful, especially in the context of possible future VLF Opera transmissions.
 
First you will need to create a text file consisting of the 239 bit 1101... sequence for your callsign. This can be generated from the PIC menu in the original Opera software. Or you can use my little code generator tool at http://df6nm.bplaced.net/opera/opera_generator.zip - simply copy opgen.exe from the zip and type
 opgen mycallsign >opera.txt
into a command window.
 
In SpecLab, open the digimode terminal and configure it for ASK with no encoding, as shown in the attached "_settings" screenshot. The symbol rate has to be set to the inverse dotlength for the desired Opera speed:
 
mode   dotlength    rate
          (seconds) (sym/s)
Op-8    1.024s     0.9766
Op-32   8.192s    0.12207
Op-4H  65.536s   0.01526
 
Shaping time can be selected from hard (0%) to soft (50%) keying. Then enter your desired audio frequency and use "Load TX text" from the file menue to load your opera.txt file. The sequence will appear in the TX window, and the transmission can started by hitting the RX / TX button.
 
Best 73,
Markus (DF6NM)
 
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