To: rsgb_lf_group@blacksheep.org,
        "rsgb_lf_group@yahoogroups.co.uk" <rsgb_lf_group@yahoogroups.co.uk>,
        "600MRG@mailman.qth.net" <600MRG@mailman.qth.net>
References: <1541712573053.31739@kuleuven.be>
 <1542362144885.30626@kuleuven.be>
From: N1BUG <paul@n1bug.com>
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Message-ID: <f6b7713d-6599-ee04-c7a1-3ba0efb43813@n1bug.com>
Date: Fri, 16 Nov 2018 06:14:01 -0500
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In-Reply-To: <1542362144885.30626@kuleuven.be>
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Subject: Re: LF: SlowJT9 update
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Sender: owner-rsgb_lf_group@blacksheep.org
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Reply-To: rsgb_lf_group@blacksheep.org

Hi Rik, all,

I will install the latest today, let it run overnight and send you
the requested information tomorrow.

I am sorry I dropped the ball on testing of your program over the
last few nights. I had some life challenges outside radio and had
just enough time to squeeze in some grabber changes to catch DK7FC's
LF activity. Best to jump on DFCW activity when one can, as
(unfortunately!) there is very little of it these days.

I should be back to more normal starting today, and will return to
testing SlowJT9.

Everyone:
After tonight's receiving test to log decoding time info I will be
looking for anyone willing to try some JT9-5 transmissions on MF or
LF. Also, if anyone within daytime range on either band has the
ability to adjust TX power in 1 dB steps I am very interested in
doing some controlled tests stepping between modes and reducing
power to check the minimum decode level of JT9-2, -2, and -5.

Rik:
SlowJT9 has now been running continuously for 3 days (or is it 4 ?)
without any problem.

73,
Paul N1BUG


On 11/16/18 4:55 AM, Rik Strobbe wrote:
> Dear all,
> 
> 
> I just uploaded a now beta-release of SlowJT9 (v0.9.03).
> 
> The main changes are
> 
> - The option to save all decoded messages in a text file (file
> "decoded.txt" in the folder "extra")
> 
> - The option to save a number of actions the application goes
> through in a text file (file "debug.txt" in the folder "extra").
> 
> I hope this last will be useful to trace down bugs. So if you are
> encountering problems, please run SlowJT9 with "Save debug
> information" enabled until the problem occurs and include (the
> relevant part of) debug.txt in your bug report.
> 
> 
> This weekend and maybe also next week (time permitting) I will
> have a closer look at
> 
> - switch to the original symbol length of JT9-2 and JT9-5
> 
> - the possibility of simultaneous decoding of JT9(-1), JT9-2  and
> JT9-5.
> 
> As simultaneous decoding might be a time critical event, in
> particular in combination with switching to the original JT9-2
> and JT9-5 parameters, the debug file will include all decoding
> events, including the time it takes:
> 
> 
> 18-11-16 10:25:51 : decoding started 18-11-16 10:25:51 : decoding
> ended (0.596 s - 4 msg decoded)
> 
> In order to have an idea how much time decoding takes (on
> different computers, different OS) I would appreciate it if you
> could run SlowJT9 for some hours (overnight) in JT9-1 mode with
> "Save debug information" enabled and provide me with the decoding
> time information (in particular the "decoding ended" lines of
> debug.txt).
> 
> 
> 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 the Blacksheep RSGB LF Reflector, Yahoo RSGB LF
> Group or directly at rik@strobbe.org.
> 
> 73, Rik  ON7YD - OR7T