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 wA8LnXT1030890 for ; Thu, 8 Nov 2018 22:49:34 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1gKs7D-0004RO-D4 for rs_out_1@blacksheep.org; Thu, 08 Nov 2018 21:45:27 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1gKs78-0004RD-70 for rsgb_lf_group@blacksheep.org; Thu, 08 Nov 2018 21:45:22 +0000 Received: from mout.gmx.net ([212.227.15.19]) by relay1.thorcom.net with esmtps (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.91_59-0488984) (envelope-from ) id 1gKs76-0000gG-4v for rsgb_lf_group@blacksheep.org; Thu, 08 Nov 2018 21:45:21 +0000 Received: from df2jpPC ([217.234.127.72]) by mail.gmx.com (mrgmx002 [212.227.17.190]) with ESMTPSA (Nemesis) id 0MPUlV-1gPZ553DGL-004iEs for ; Thu, 08 Nov 2018 22:45:18 +0100 From: "Joe" To: References: <1541712573053.31739@kuleuven.be> In-Reply-To: <1541712573053.31739@kuleuven.be> Date: Thu, 8 Nov 2018 22:45:18 +0100 Message-ID: <030101d477ac$5794d940$06be8bc0$@gmx.de> MIME-Version: 1.0 X-Mailer: Microsoft Outlook 14.0 Thread-Index: AQMHUHIHtxH0wrL+qPPgxSD0ZwQqs6Lgt7zg Content-Language: de X-Antivirus: AVG (VPS 181108-4, 08.11.2018), Outbound message X-Antivirus-Status: Clean X-Provags-ID: V03:K1:W7QHn5kxS7au6mKLw936bU6eVlQ70t1TcWzptea+T8VTcgrhUoJ 6j04n3bgJO6xMXat6t31r8lPWDNuEX9r4AKKd0XhyUuwyFPMUOZG4qjHHkMTrZ8NBf/mIJ7 0IgevDzxYWA8ufHnLgSkl7yTlor3V4sX78NGazYOjSWh/lje36sscfGwnpCtK4Wty5964Hq 5hKF2LMAcF0UsWeiMpYxg== X-Spam-Flag: NO X-UI-Out-Filterresults: notjunk:1;V01:K0:YMMMCTCXAH0=:RM6GslZTb4ueLe2vECBqVX 9gJiIDeZn4oeEcXRoMyY+W1NI0LYrttT5tlKcX+k+ZoVuSHQAaHcWd/gcbsqJZvtW8izazgvd wGNk7atCBXa7xzlT7uzPRflUJTG7+5G8ISYgFV6j538yK+xve5sJCV1xp5bXrZHG+i5I/sb+H pYe+OwB5WYC4SGSE60+QDaAtCXhTFSoFk5WpqKdqc6iQbGh6p2IhgPy9JTiH1LGTl01OSqEXo e8KgJNBBoGx4BdRWurBP65eFqxOSfD8w1gswXD609VLGHmKn7n5YUgNP0JZ9nNTM/+h2nAqxv 00lYDecMiUhuoQ4R0ViNMA9ENt5BF7/DrtaI7aF9Juhj3uk3fOHAK8FxDsRLRuhYhYQqDGXLk KMxgfJpbaQ29FjzeCwYcn43H6ZpajrJrbng+Lmh761dJjYCIBjIv2TJpxU0VrKacDgKKCT1pl UzWwlM5B4uarAwGG5kuwbnUB/YFzWSNs4YMxib4zkSljXsabkRB+N82sFAapHYgfu2K3phU1f H1COLzBQsIzKpk6fno333rZqAM25O2D4rCa/SQtQD4J7AuQOqdFE1hB0SC+fvEqK+NG8/kk1T HmwJQyOZfHhYycXj+Q6LmHQ4twb0uQ7u+yS2jNU+G5QZYReYpJlzhDU8ajpKsvUQXc6zTT4d3 twUSK5xZfSTec5eHejumdcX26VPxhJyKmOVp9m/qAZF8nEIolg9ZA3Ush1sFsmqey+dc2LpTU j9c+DehyTZeM+TJzexjpfj0HTtigJF6nYxdGgqfCKLTuzdB8ob3CQF19763FEEqHVdTMlDIuW wtCoTgEcC9imW9BLZh5oViCaS6X3fT1PgPOIuCpOn9Jjy4kSdc/t6Hvh7Nrd5dzkNDqJSszIg blyhwwLJ3pVeB/zGaxi650t83fnPVdFEQOmFMMj8eLNwRgLsM3KWWyX2FDvyn8 X-Spam-Score: -0.7 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see @@CONTACT_ADDRESS@@ for details. Content preview: The requested URL /SlowJT9/SlowJT9_setup.exe was not found on this server. 472khz.org Von: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] Im Auftrag von Rik Strobbe Gesendet: Donnerstag, 8. November 2018 22:30 An: rsgb_lf_group@blacksheep.org; LF: JT9-2 and JT9-5 mode application [...] Content analysis details: (-0.7 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/, low trust [212.227.15.19 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (df2jp[at]gmx.de) 0.0 HTML_MESSAGE BODY: HTML included in message 0.0 T_REMOTE_IMAGE Message contains an external image X-Scan-Signature: 29f1b43ee9e13e220716185d38bfb88c Subject: LF: AW: JT9-2 and JT9-5 mode application Content-Type: multipart/alternative; boundary="----=_NextPart_000_0302_01D477B4.B95AC7E0" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.2 required=5.0 tests=HTML_50_60,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 This is a multipart message in MIME format. ------=_NextPart_000_0302_01D477B4.B95AC7E0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable The requested URL /SlowJT9/SlowJT9_setup.exe was not found on this server. 472khz.org Von: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@blacksheep.org] Im Auftrag von Rik Strobbe Gesendet: Donnerstag, 8. November 2018 22:30 An: rsgb_lf_group@blacksheep.org; rsgb_lf_group@yahoogroups.co.uk Betreff: LF: JT9-2 and JT9-5 mode application Dear all, a few months ago there was a short discussion about a "revival" of the slower JT9 modes such as JT9-2 and JT9-5. These modes existed in early versions of WSJT-X, and had the advantage of a= better S/N treshold level, at the cost of longer transmissions. But unfortunately thse modes were abandoned in later WSJT-X version. As a result I raised this question in de WSJT-X developers group, but there= was no intention do implement these modes again, as the focus was more on the (further) developing of new(er) modes. Having a closer look at the WSJT-X source code I noticed that the JT9 decoding was done in a separate executable and with some assistance of Joe,= K1JT, I managed to write an application that used this executable for decoding. As this executable only decodes JT9 signals, not JT9-2 and JT9-5, I had to use a lttle trick: speeding up a JT9-2 recording by a factor 2 results in a= JT9 signal (at the double frequency) that can be fed to the JT9 decoder. Th= e same can be done for JT9-5 (now speeding it up 5 times). Some tests showed that this way a JT9-2 signal could be copied at a 2.5dB better S/N treshold compared to JT9(-1). Not completely the theoretical 3dB= , but 2.5dB can often be the difference between a failed or successful QSO. JT9-5 hasn't been tested yet. All this was done "manually" and it was rather time consuming. So I decided to write an application that I named SlowJT9. It takes care of= all the conversions and frequency shifts. Besides JT9-2 and JT9-5 it also supports JT9(-1) for convenience reasons. Over the past weeks I tested the application in JT9 mode and after more tha= n a dozen QSO's I feel that it now time to release a beta version. Whoever is interested can download the SlowJT9 installation file at http://472khz.org/SlowJT9/SlowJT9_setup.exe. For now only a Windows version of SlowJT9 is available. But as the used IDE= has cross platform facilities it should be possible to support other operating systems as well in the future. The aim of this beta version is: - To test if the application is working properly. - To find out if JT9-2 and/or JT9-5 have a sufficient S/N advantage over JT9(-1). - To find out if there is sufficient interest in using these modes to continue the project. Therefore all comments, bug reports and suggestions are most welcome via th= e Blacksheep RSGB LF Reflector, Yahoo RSGB LF Group or directly at on7yd@strobbe.org. 73, Rik ON7YD - OR7T --- Diese E-Mail wurde von AVG auf Viren gepr=C3=BCft. http://www.avg.com ------=_NextPart_000_0302_01D477B4.B95AC7E0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

The requested URL /SlowJT9/SlowJT9_setup.exe was not found= on this server. 472khz.org

 

V= on: owner-rsgb_lf_group@blacksheep.org [mailto:owner-rsgb_lf_group@black= sheep.org] Im Auftrag von Rik Strobbe
Gesendet: Donnerstag= , 8. November 2018 22:30
An: rsgb_lf_group@blacksheep.org; rsgb_l= f_group@yahoogroups.co.uk
Betreff: LF: JT9-2 and JT9-5 mode appli= cation

 

Dear all,

 

a few months ago there was a short discussion about a "r= evival" of the slower JT9 modes such as JT9-2 and JT9-5.

These modes existed in early versions of WSJT-X, and ha= d the advantage of a better S/N treshold level, at the cost of longer trans= missions. But unfortunately thse modes were abandoned in later WSJT-X = version.

As a result I raised this question in = de WSJT-X developers group, but there was no intention do implement these m= odes again, as the focus was more on the (further) developing&nbs= p;of new(er) modes.

Having a closer look a= t the WSJT-X source code I noticed that the JT9 decoding was done in a= separate executable and with some assistance of Joe, K1JT, I managed to&nb= sp;write an application that used this executable for decoding.

As this executable only decodes JT9 signals, not JT9-= 2 and JT9-5, I had to use a lttle trick: speeding up a JT9-2 recording= by a factor 2 results in a JT9 signal (at the double frequency) that can b= e fed to the JT9 decoder. The same can be done for JT9-5 (now speeding it u= p 5 times).

Some tests showed that this way a J= T9-2 signal could be copied at a 2.5dB better S/N treshold compared to JT9(= -1). Not completely the theoretical 3dB, but 2.5dB can often be the di= fference between a failed or successful QSO. JT9-5 hasn't been tested yet.<= o:p>

All this was done "manually" and it w= as rather time consuming.

So I decided to write= an application that I named SlowJT9. It takes care of all the convers= ions and frequency shifts.

Besides JT9-2 and JT= 9-5 it also supports JT9(-1) for convenience reasons.

=

Over the past weeks I tested the application in JT9 mode and af= ter more than a dozen QSO's I feel that it now time to release a beta = version.

 

Who= ever is interested can download the SlowJT9 installation file at&= nbsp;http://472khz.= org/SlowJT9/SlowJT9_setup.exe.

 <= /o:p>

For now only a Window= s version of SlowJT9 is available. But as the used IDE has cross = platform facilities it should be possible to support other operating system= s as well in the future.

The = aim of this beta version is:
- To test if the application is workin= g properly.
- To find out if JT9-2 and/or JT9-5 have a sufficient S= /N advantage over JT9(-1).
- To find out if there is sufficient int= erest in using these modes to continue the project.
Therefore all commen= ts, bug reports and suggestions are most welcome via the Blacksheep RSGB LF= Reflector, Yahoo RSGB LF Group or directly at on7yd@strobbe.org.

 

<= span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif";color:blac= k'>73, Rik  ON7YD - OR7T

 =

 

 

 

 


3D""= Virenf= rei. www.avg.com =
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